Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902349
S. Ueda, K. Kondo, Yuki Chikuchi
Brackish lakes and estuaries are strongly affected by both terrestrial and oceanic factors because ofthe complex mixing of fresh water and seawater, and their characteristic fluctuations in water quality differ from those o f freshwater lakes or the oceans (McLusKY 1989). In brackish water areas, there are large fluctuations in salinity with the tides and freshwater discharge, which play a key role in establishing the distribution and dynamics ofthe physico-chemical water quality. Fluctuations of salinity influence the distribution of biological species. When a strong halocline forms in brackish waters, the vertical mixing of substances between the water layers above and below is limited (LouGEE et al. 2002, DEDA et al. 2005). Therefore, water quality and characterization of an ecosystem in a brackish lake differ in its upper and lower layers. Brackish Lake Obuchi in Rokkasho, Japan, is bordered by a nuclear spent-fuel reprocessing plant. Small amounts of radionuclides (such as Kr, H, C, and I) are released from the reprocessing plant and may enter this lake from the ocean by means of tides, from the land via rivers, and from the atmosphere by fallout. The behavior of these radionuclides is strongly influenced by environmental factors in the lake ecosystem. Therefore, the impact of radioactive substances released from the reprocessing plant must be evaluated to assess the safety of the surrounding environment and to develop a radionuclide transfer model for this lake. We developed the transfer model for radionuclides to evaluate the physical-biological interactions in terms of an estuarine lower-trophic (phytoplankton and zooplankton) ecosystem (UEDA et al. 2006); however, the calculated precision of a primary production of phytoplankton is slightly low. To improve the reproducibility of our model, the parameter related to a primary production of phytoplankton in the field must be obtained. In this study we clarified the vertical distributions of primary production ofphytoplankton and environmental factors (such as water quality, water temperature, salinity, and irradiance) in Lake Obuchi to obtain the parameter related to a primary production in the field. Moreover, we investigated the relationship between photosynthesis and the irradiance (P-I curve) curve in the upper and lower layers by the C technique.
由于淡水和海水的复杂混合，咸淡水湖泊和河口受到陆地和海洋因素的强烈影响，其水质的特征波动不同于淡水湖或海洋(McLusKY 1989)。在咸淡水地区，盐度随潮汐和淡水流量的变化有较大的波动，这对建立理化水质的分布和动态起着关键作用。盐度的波动影响生物种类的分布。当咸淡水中形成强烈的盐斜层时，上下水层之间物质的垂直混合受到限制(LouGEE et al. 2002, DEDA et al. 2005)。因此，咸淡湖的水质和生态系统的特征在上层和下层是不同的。位于日本六所所的小渊湖(Lake Obuchi)周围是一座核燃料再处理厂。少量的放射性核素(如Kr、H、C和I)从后处理工厂释放出来，可能通过潮汐从海洋进入这个湖，通过河流从陆地进入这个湖，通过沉降物从大气进入这个湖。这些放射性核素的行为受到湖泊生态系统环境因素的强烈影响。因此，必须对后处理工厂释放的放射性物质的影响进行评估，以评估周围环境的安全性，并为该湖建立放射性核素转移模型。我们开发了放射性核素转移模型，以评估河口低营养(浮游植物和浮游动物)生态系统的物理-生物相互作用(UEDA等人，2006年);然而，浮游植物初级产量的计算精度略低。为了提高模型的可重复性，必须获得与野外浮游植物初级产量有关的参数。在本研究中，我们明确了小渊湖浮游植物初级产量的垂直分布和环境因子(如水质、水温、盐度和辐照度)，以获得与野外初级产量相关的参数。此外，我们还利用C技术研究了光合作用与上层和下层辐照度(P-I曲线)曲线的关系。
{"title":"Relationships between primary production of phytoplankton and environmental factors in a shallow brackish lake","authors":"S. Ueda, K. Kondo, Yuki Chikuchi","doi":"10.1080/03680770.2009.11902349","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902349","url":null,"abstract":"Brackish lakes and estuaries are strongly affected by both terrestrial and oceanic factors because ofthe complex mixing of fresh water and seawater, and their characteristic fluctuations in water quality differ from those o f freshwater lakes or the oceans (McLusKY 1989). In brackish water areas, there are large fluctuations in salinity with the tides and freshwater discharge, which play a key role in establishing the distribution and dynamics ofthe physico-chemical water quality. Fluctuations of salinity influence the distribution of biological species. When a strong halocline forms in brackish waters, the vertical mixing of substances between the water layers above and below is limited (LouGEE et al. 2002, DEDA et al. 2005). Therefore, water quality and characterization of an ecosystem in a brackish lake differ in its upper and lower layers. Brackish Lake Obuchi in Rokkasho, Japan, is bordered by a nuclear spent-fuel reprocessing plant. Small amounts of radionuclides (such as Kr, H, C, and I) are released from the reprocessing plant and may enter this lake from the ocean by means of tides, from the land via rivers, and from the atmosphere by fallout. The behavior of these radionuclides is strongly influenced by environmental factors in the lake ecosystem. Therefore, the impact of radioactive substances released from the reprocessing plant must be evaluated to assess the safety of the surrounding environment and to develop a radionuclide transfer model for this lake. We developed the transfer model for radionuclides to evaluate the physical-biological interactions in terms of an estuarine lower-trophic (phytoplankton and zooplankton) ecosystem (UEDA et al. 2006); however, the calculated precision of a primary production of phytoplankton is slightly low. To improve the reproducibility of our model, the parameter related to a primary production of phytoplankton in the field must be obtained. In this study we clarified the vertical distributions of primary production ofphytoplankton and environmental factors (such as water quality, water temperature, salinity, and irradiance) in Lake Obuchi to obtain the parameter related to a primary production in the field. Moreover, we investigated the relationship between photosynthesis and the irradiance (P-I curve) curve in the upper and lower layers by the C technique.","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114241125","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902334
H. Mitamura, Y. Mitsunaga, N. Arai, Yukiko Yamagishi, Metha Khachaphichat, Thavee Viputhanumas
Greater knowledge of the relationship between movement patterns of the target speeies and the environmental eonditions (e.g., temperature and dissolved oxygen) is needed for effeetive fisheries management and eonservation (BRILL 1994, CARTAMIL & LOWE 2004). The Mekong giant eatfish Pangasianodon gigas is one of the largest freshwater fishes in the world, measuring up to 3 m in length and weighing in exeess of 300 kg. The eatfish is one o f the most important fisheries speeies ofthe Mekong River Basin in the Southeast Asia; however, the eateh number of wild eatfish in the Mekong River has deelined due to development o f the river and over-fishing (HOGAN 2004) and the eatfish eurrently is listed in CITES Appendix I and on the IUCN Red List of threatened speeies as a Critieally Endangered Speeies. Hatehery-reared juvenile and young immature eatfish were released into lakes and reservoirs as well as the Mekong River to enhanee the stoek (MEYNELL 2003). The behavior, movement patterns, and survival rate of these eatfish after release into natural eonditions remains largely unknown (MEYNELL 2003), although that information is quite useful for fishery management and eonservation deeision making (LOWE et al. 2003, HUMSTON et al. 2005). W e started to investiga te the movementpatterns ofthe eatfish using aeoustie telemetry in 2001 (ARAI et al. 2005). To assess the movement patterns ofthe eatfish during the rainy season in 2003, 8 fish tagged with aeoustie transmitters were released in Mae Peum reservoir, northern Thailand in 2003 (MITAMURA et al. 2008). Although 7 of 8 tagged fish had expelled the transmitters duringthe study period (8 -136 days ), the remaining one fish was monitored for more than 14 mo during both the dry and rainy seasons, whieh provided the movement patterns in relation to the seasonal environmental eondition. There are not so many studies that eontinuously monitored the same fish over a year due to the same diffieulties, sueh as fish mobility, vastness ofthe study si te, an d transmitter detaehment (LucAs 1989). The objeetive ofthis study was to report the seasonal movements of one eatfish in relation to environmental eonditions.
{"title":"Seasonal movement of one Mekong giant catfish, Pangasianodon gigas, in relation to the environmental conditions of Mae Peum Reservoir, northern Thailand","authors":"H. Mitamura, Y. Mitsunaga, N. Arai, Yukiko Yamagishi, Metha Khachaphichat, Thavee Viputhanumas","doi":"10.1080/03680770.2009.11902334","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902334","url":null,"abstract":"Greater knowledge of the relationship between movement patterns of the target speeies and the environmental eonditions (e.g., temperature and dissolved oxygen) is needed for effeetive fisheries management and eonservation (BRILL 1994, CARTAMIL & LOWE 2004). The Mekong giant eatfish Pangasianodon gigas is one of the largest freshwater fishes in the world, measuring up to 3 m in length and weighing in exeess of 300 kg. The eatfish is one o f the most important fisheries speeies ofthe Mekong River Basin in the Southeast Asia; however, the eateh number of wild eatfish in the Mekong River has deelined due to development o f the river and over-fishing (HOGAN 2004) and the eatfish eurrently is listed in CITES Appendix I and on the IUCN Red List of threatened speeies as a Critieally Endangered Speeies. Hatehery-reared juvenile and young immature eatfish were released into lakes and reservoirs as well as the Mekong River to enhanee the stoek (MEYNELL 2003). The behavior, movement patterns, and survival rate of these eatfish after release into natural eonditions remains largely unknown (MEYNELL 2003), although that information is quite useful for fishery management and eonservation deeision making (LOWE et al. 2003, HUMSTON et al. 2005). W e started to investiga te the movementpatterns ofthe eatfish using aeoustie telemetry in 2001 (ARAI et al. 2005). To assess the movement patterns ofthe eatfish during the rainy season in 2003, 8 fish tagged with aeoustie transmitters were released in Mae Peum reservoir, northern Thailand in 2003 (MITAMURA et al. 2008). Although 7 of 8 tagged fish had expelled the transmitters duringthe study period (8 -136 days ), the remaining one fish was monitored for more than 14 mo during both the dry and rainy seasons, whieh provided the movement patterns in relation to the seasonal environmental eondition. There are not so many studies that eontinuously monitored the same fish over a year due to the same diffieulties, sueh as fish mobility, vastness ofthe study si te, an d transmitter detaehment (LucAs 1989). The objeetive ofthis study was to report the seasonal movements of one eatfish in relation to environmental eonditions.","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"10 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131274537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902356
L. Marziali, V. Lencioni, B. Rossaro
Chironomids are one of the most abundant and species-rich groups in crenal habitats. Up to 200 species are reported from cold European springs and 73 from Italian Alpine springs, representing about 20 % of the species recorded in Europe and in Italy, respectively (Lindegaard 1995, Crema et al. 1996, Ferrarese 2006, Lencioni 2007). Nevertheless, most crenal systems remain unexplored, and no biotic indexes have been developed to determine their ecological status (Cantonati et al. 2006). We aimed to analyze chironomid taxa distribution in natural or slightly impacted cold springs from an ecological and geographical point of view.
摇尾虫是沼泽生境中数量最多、种类最丰富的类群之一。据报道，欧洲冷泉中有200种，意大利高山泉中有73种，分别占欧洲和意大利记录物种的20%左右(Lindegaard 1995, Crema et al. 1996, Ferrarese 2006, Lencioni 2007)。然而，大多数峡谷系统仍未被开发，也没有开发出生物指标来确定其生态状况(Cantonati et al. 2006)。从生态学和地理学的角度分析了自然或轻微受影响的冷泉中摇尾虫类群的分布。
{"title":"The chironomids (Diptera: Chironomidae) from 108 Italian Alpine springs","authors":"L. Marziali, V. Lencioni, B. Rossaro","doi":"10.1080/03680770.2009.11902356","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902356","url":null,"abstract":"Chironomids are one of the most abundant and species-rich groups in crenal habitats. Up to 200 species are reported from cold European springs and 73 from Italian Alpine springs, representing about 20 % of the species recorded in Europe and in Italy, respectively (Lindegaard 1995, Crema et al. 1996, Ferrarese 2006, Lencioni 2007). Nevertheless, most crenal systems remain unexplored, and no biotic indexes have been developed to determine their ecological status (Cantonati et al. 2006). We aimed to analyze chironomid taxa distribution in natural or slightly impacted cold springs from an ecological and geographical point of view.","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128139000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902358
Antonio Ruiz Verdú, R. P. Martínez, Caridad De Hoyos Alonso
The absorption of the cyanobacterial pigment phycocyanin (PC) can be detected in the reflectance spectra of inland waters as a trough in the 620-630 nm region. Several algorithms have been proposed for retrieving PC concentrations from reflectance, based on semiempirical band ratios (DEKKER 1993), baseline (SCHALLES & YACOBY 2000), or semiempirical nested band ratios (SIMIS et al. 2005). These algorithms can be applied to the spaceborne sensors EnvisatMERIS and Chris/Proba (CHRIS), thus allowing PC mapping on a continuous spatial and temporal basis. We validated these algorithms with field data obtained in 2001-2007 in 65 lakes and reservoirs in Spain, and obtained thematic maps for Cyanobacteria from MERIS and CHRIS imagery.
{"title":"Monitoring cyanobacteria in inland waters by remote sensing","authors":"Antonio Ruiz Verdú, R. P. Martínez, Caridad De Hoyos Alonso","doi":"10.1080/03680770.2009.11902358","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902358","url":null,"abstract":"The absorption of the cyanobacterial pigment phycocyanin (PC) can be detected in the reflectance spectra of inland waters as a trough in the 620-630 nm region. Several algorithms have been proposed for retrieving PC concentrations from reflectance, based on semiempirical band ratios (DEKKER 1993), baseline (SCHALLES & YACOBY 2000), or semiempirical nested band ratios (SIMIS et al. 2005). These algorithms can be applied to the spaceborne sensors EnvisatMERIS and Chris/Proba (CHRIS), thus allowing PC mapping on a continuous spatial and temporal basis. We validated these algorithms with field data obtained in 2001-2007 in 65 lakes and reservoirs in Spain, and obtained thematic maps for Cyanobacteria from MERIS and CHRIS imagery.","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"44 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126374633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902323
Sabine Hilt (nee Körner), P. Lombardo
remainsdifficulttoiso-late as a mechanism (Gross et al. 2007).One potentially confounding factor is competitionbetween macrophytes and phytoplankton for nutrients. Forrooted macrophytes, sediments may be the principal site foruptake of phosphorus and nitrogen as well as iron, manga-nese, micronutrients, and trace metals (Barko et al. 1991).Availability of these same elements for phytoplanktongrowth within macrophyte stands may be low due to uptakeby epiphyton or incr eased nitrification (Korner 1999) anddenitrification (Weisner et al. 1994). Nonrooted macro-phyte species cannot use the sediment nutrient pool, and dis-solved products important for macrophyte growth are takenup principally from the water column (Barko et al. 1988).Though plants may not be a nutrient (especially phosphorus)sink over the long-term (weeks to months; Lombardo &Cooke 2003), net foliar uptake in the short term (days), atwhich allelopathy experiments are often performed, may bequite high (Pelton et al. 1998, Lombardo & Cooke 2003).The nutrient constraint on phytoplankton due to uptake bymacrophytes is likely more significant in the lower end of thenutrient regime (Jeppesen et al. 1999).Coexistence experiments testing allelopathic effects ofmacrophytes on phytoplankton are therefore often performedat very high nutrient concentrations, although sensitivity ofphytoplankton to allelochemicals is expected to be higherunder additional stress such as nutrient limitation (Reigosaet al. 1999, Hilt et al. 2006). Inderjit & Del Moral(1997) wondered whether separating resource competitionfrom allelopathy is at all realistic.Here we analyze the nutrient dynamics observed in labora-tory-scale coexistence experiments that targeted allelopathiceffects of
作为一种机制，仍然难以确定(Gross et al. 2007)。一个潜在的混淆因素是大型植物和浮游植物之间对营养物质的竞争。对于有根的大型植物，沉积物可能是吸收磷和氮以及铁、锰、微量营养素和微量金属的主要场所(Barko等人，1991年)。由于附生植物的吸收或硝化作用(Korner 1999)和反硝化作用(Weisner et al. 1994)的增加，这些元素在大型植物林内浮游植物生长的可用性可能较低。无根的大型植物物种不能利用沉积物营养池，对大型植物生长重要的溶解产物主要来自水柱(Barko et al. 1988)。虽然植物可能不是长期(几周到几个月)的营养(尤其是磷)汇;Lombardo &Cooke 2003)，短期(天)的净叶面吸收量可能相当高(Pelton et al. 1998, Lombardo &Cooke 2003)，化感作用实验经常在此进行。由于被大型植物吸收而对浮游植物的营养限制可能在营养体系的低端更为显著(Jeppesen et al. 1999)。因此，测试大型植物对浮游植物化感作用的共存实验通常是在非常高的营养浓度下进行的，尽管浮游植物对化感物质的敏感性预计在额外的压力下会更高，如营养限制(Reigosaet al. 1999, Hilt et al. 2006)。Inderjit & Del Moral(1997)怀疑将资源竞争与化感作用分开是否现实。在这里，我们分析了在实验室规模的共存实验中观察到的营养动态，以化感作用为目标
{"title":"Effects of macrophytes on phytoplankton: nutrient uptake versus allelopathy","authors":"Sabine Hilt (nee Körner), P. Lombardo","doi":"10.1080/03680770.2009.11902323","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902323","url":null,"abstract":"remainsdifficulttoiso-late as a mechanism (Gross et al. 2007).One potentially confounding factor is competitionbetween macrophytes and phytoplankton for nutrients. Forrooted macrophytes, sediments may be the principal site foruptake of phosphorus and nitrogen as well as iron, manga-nese, micronutrients, and trace metals (Barko et al. 1991).Availability of these same elements for phytoplanktongrowth within macrophyte stands may be low due to uptakeby epiphyton or incr eased nitrification (Korner 1999) anddenitrification (Weisner et al. 1994). Nonrooted macro-phyte species cannot use the sediment nutrient pool, and dis-solved products important for macrophyte growth are takenup principally from the water column (Barko et al. 1988).Though plants may not be a nutrient (especially phosphorus)sink over the long-term (weeks to months; Lombardo &Cooke 2003), net foliar uptake in the short term (days), atwhich allelopathy experiments are often performed, may bequite high (Pelton et al. 1998, Lombardo & Cooke 2003).The nutrient constraint on phytoplankton due to uptake bymacrophytes is likely more significant in the lower end of thenutrient regime (Jeppesen et al. 1999).Coexistence experiments testing allelopathic effects ofmacrophytes on phytoplankton are therefore often performedat very high nutrient concentrations, although sensitivity ofphytoplankton to allelochemicals is expected to be higherunder additional stress such as nutrient limitation (Reigosaet al. 1999, Hilt et al. 2006). Inderjit & Del Moral(1997) wondered whether separating resource competitionfrom allelopathy is at all realistic.Here we analyze the nutrient dynamics observed in labora-tory-scale coexistence experiments that targeted allelopathiceffects of","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128372792","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902355
N. Kazancı, B. Öz, M. Dügel, G. Türkmen, Özge Ertunç
First faunistic and ecological survey of interstitial fauna of streams in Turkey N. Kazanc1, B. Oz, M. Dügel, G. Türkmen and O. Ertunç The upper part of the hyporheic zone of the river bed is known as the interstitial zone. The interstitial and hyporheic habitats act as refuge areas for benthic macroinvertebrates for survival during floods and droughts. The temperature-sensitive epigean taxa may use the interstitial habitats to escape high surface water temperature. Also, they migrate to interstitial habitats for the deposition and incubation of eggs, growth of small instars, and feeding (JACOBI & CARY 1996). In Turkey, the ecology o f running waters has been scarcely investigated, an d to our knowledge their interstitial fauna has never been studied. The Blacksea Region is one o f the most biologically rich regions on Earth and accepted as a biodiversity hotspot ( especially Eastem Blacksea Region) with otherpart ofthe Caucasus Region. Despite this, limnofauna and limnoecology of freshwater ecosystems ofEastem Blacksea Region are not known. The objective o f this first research was to investigate the composition of aquatic insects of interstitial fauna and some ecological characteristics o f inerstitial habitats o f streams in the Black Sea Region. The 13 study streams were first, second, and third order, (A1adag, Devrek, Ezine streams in Westem Blacksea Region; Altmdere, F1rtma, Maral streams in Eastem Blacksea Region) and belong to the hydrographic basins in Westem and Eastem Black Sea Regions. The collecting sites had reference site characteristics. Interstitial fauna was sampled using the Karaman-Chappuis technique. The 13 sites (one site on each stream) were sampled once between Ju1y and August 2006. Samp1es of2 L of interstitial water were filtered through a 55-l.lm mesh net. The conductivity values recorded were between 199.9 and 27.9 1.1S. The disso1vedoxygenrangedfrom6.8to0.7mg!L. ThepHmeasured was from a minimum o f 7.2 to a maximum o f 8.16. The temperature values recorded were between 12.2 and 24.6 °C. For all taxonomica1 levels, 29 taxa were sampled. Baetis was recorded with 33.3% dominancy, Paraleptophlebia with 53.3 %, and Habroleptoides with 34.78%. Electrogena were found with 11.1 % dominancy in site 8 and 6.6% in si te 6 in this study. Within the Plecoptera, Perla was recorded with 21.7 % dominancy, Leuctra with 50 %. Plecoptera actively search for prey by foraging in the interstices of the stream. Adu1t Coleoptera are seldom found in the hyporheic zone (WILLIAMS 1984). The 1arvae of Noterus clavicornis was found with 5.5% dominancy. Hydroptilidae and Linmephilidae were found with 22.2% and 11.1 % dominancy, respectively. Ceraclea was found with 9.1% dominancy. The caseless Trichoptera species was found with highest dominancy (100%). Pentaneurini with highest dominancy (80% ), Orthocladius with 16.6 %, Chironomus with highest dominancy (20 %) and Tanytarsus with 13.0% dominancy. Ceratopogonidae was found with highest dominancy
N. Kazanc1, B. Oz, M. d gel, G. t rkmen和O. Ertunç河床下隐带的上部称为间隙带。在洪水和干旱期间，底底动物和大型无脊椎动物在间隙和暗地栖息地中生存。对温度敏感的表生类群可能利用间隙生境来躲避高地表水温度。此外，它们迁移到间隙栖息地沉积和孵化卵，生长小虫卵和取食(JACOBI & CARY 1996)。在土耳其，流水的生态学几乎没有被研究过，据我们所知，他们的间隙动物群也从未被研究过。黑海地区是地球上生物最丰富的地区之一，与高加索地区的其他部分一起被认为是生物多样性的热点地区(特别是东黑海地区)。尽管如此，黑海东部淡水生态系统的湖沼动物群和湖沼生态学还不为人所知。本研究的目的是调查黑海地区河流间隙区系水生昆虫的组成和间隙区系生境的一些生态特征。13条研究流为一、二、三级流(A1adag、Devrek、Ezine);阿尔特姆代尔河、F1rtma河、Maral河(黑海东部地区)，属于黑海西部和东部地区的水文盆地。采集点具有参考点特征。利用Karaman-Chappuis技术对间质动物群进行取样。在2006年7月1日至8月期间对13个站点(每个流上一个站点)进行了一次采样。取2l间质水样品，用55-l滤水器过滤。m目网。记录的电导率值在199.9 ~ 27.9 1.1S之间。disso1vedoxygenrangedfrom6.8to0.7mg ! L。测得的ph值从最低的7.2到最高的8.16。记录的温度值在12.2到24.6℃之间。在所有分类水平上，共取样29个分类群。Baetis占33.3%，副总蝇占53.3%，Habroleptoides占34.78%。在8号位点和6号位点分别有11.1%和6.6%的优势。翅目中，大翅目占21.7%，轻翅目占50%。翼翅目通过在溪流间隙觅食来积极寻找猎物。成年鞘翅目昆虫很少出现在下潜区(WILLIAMS 1984)。发现锁骨夜蛾1只，优势度5.5%。蠓科和蠓科优势度分别为22.2%和11.1%。白蚁的优势度为9.1%。无箱毛翅目的优势度最高(100%)。pentanurini(80%)、Orthocladius(16.6%)、Chironomus(20%)和Tanytarsus(13.0%)的优势度最高。蠓科优势度最高(20%)，蠓科优势度最高(77%)。7 %)，优势度最高的是棕榈蝇(6.7%)和角蠓(16.6%)。根据典型对应分析结果，Isotomurus、Baetis、Linmephilidae、Probezzia和pent动脉瘤ella与高pH值相关，Leuctra与pH和温度正相关。Chironomus与温度呈正相关。水螅科、电蝇科、水螅科、水螅科、水螅科、水螅科、水螅科、水螅科、水螅科、水螅科、水螅科、水螅科、水螅科、水螅科等与高溶解氧有关。角鼻龙、波杜拉目、迪克兰诺塔目和正克拉底目与高电导率呈正相关。这些初步结果表明，黑海地区所研究河流的间隙带是水生昆虫的重要栖息地。我们还需要进一步了解大无脊椎动物组合的结构以及大无脊椎动物组合组成与水化学变化的关系。
{"title":"Abstract: First faunistic and ecological survey of interstitial fauna of streams in Turkey","authors":"N. Kazancı, B. Öz, M. Dügel, G. Türkmen, Özge Ertunç","doi":"10.1080/03680770.2009.11902355","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902355","url":null,"abstract":"First faunistic and ecological survey of interstitial fauna of streams in Turkey N. Kazanc1, B. Oz, M. Dügel, G. Türkmen and O. Ertunç The upper part of the hyporheic zone of the river bed is known as the interstitial zone. The interstitial and hyporheic habitats act as refuge areas for benthic macroinvertebrates for survival during floods and droughts. The temperature-sensitive epigean taxa may use the interstitial habitats to escape high surface water temperature. Also, they migrate to interstitial habitats for the deposition and incubation of eggs, growth of small instars, and feeding (JACOBI & CARY 1996). In Turkey, the ecology o f running waters has been scarcely investigated, an d to our knowledge their interstitial fauna has never been studied. The Blacksea Region is one o f the most biologically rich regions on Earth and accepted as a biodiversity hotspot ( especially Eastem Blacksea Region) with otherpart ofthe Caucasus Region. Despite this, limnofauna and limnoecology of freshwater ecosystems ofEastem Blacksea Region are not known. The objective o f this first research was to investigate the composition of aquatic insects of interstitial fauna and some ecological characteristics o f inerstitial habitats o f streams in the Black Sea Region. The 13 study streams were first, second, and third order, (A1adag, Devrek, Ezine streams in Westem Blacksea Region; Altmdere, F1rtma, Maral streams in Eastem Blacksea Region) and belong to the hydrographic basins in Westem and Eastem Black Sea Regions. The collecting sites had reference site characteristics. Interstitial fauna was sampled using the Karaman-Chappuis technique. The 13 sites (one site on each stream) were sampled once between Ju1y and August 2006. Samp1es of2 L of interstitial water were filtered through a 55-l.lm mesh net. The conductivity values recorded were between 199.9 and 27.9 1.1S. The disso1vedoxygenrangedfrom6.8to0.7mg!L. ThepHmeasured was from a minimum o f 7.2 to a maximum o f 8.16. The temperature values recorded were between 12.2 and 24.6 °C. For all taxonomica1 levels, 29 taxa were sampled. Baetis was recorded with 33.3% dominancy, Paraleptophlebia with 53.3 %, and Habroleptoides with 34.78%. Electrogena were found with 11.1 % dominancy in site 8 and 6.6% in si te 6 in this study. Within the Plecoptera, Perla was recorded with 21.7 % dominancy, Leuctra with 50 %. Plecoptera actively search for prey by foraging in the interstices of the stream. Adu1t Coleoptera are seldom found in the hyporheic zone (WILLIAMS 1984). The 1arvae of Noterus clavicornis was found with 5.5% dominancy. Hydroptilidae and Linmephilidae were found with 22.2% and 11.1 % dominancy, respectively. Ceraclea was found with 9.1% dominancy. The caseless Trichoptera species was found with highest dominancy (100%). Pentaneurini with highest dominancy (80% ), Orthocladius with 16.6 %, Chironomus with highest dominancy (20 %) and Tanytarsus with 13.0% dominancy. Ceratopogonidae was found with highest dominancy ","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122206231","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902351
R. Vinebrooke, Patrick L. Thompson, W. Hobbs, B. Luckman, M. Graham, A. P. Wolfe
Climate warming is having a more pronounced impact ontemperature change in alpine and polar regions than on aglobal scale (Beniston 2006, Lemke et al. 2007). For theCordillera region of North America, climate models predictthat warming will increase with elevation, reaching its maxi-mum at mid-northern latitudes (Bradley et al. 2004). Den-drochronological models have already shown that summertemperatures in the Canadian Rockies were anomalouslywarm during the 20
气候变暖对高寒地区和极地地区的温度变化的影响比对全球范围的影响更为明显(Beniston 2006, Lemke et al. 2007)。对于北美的科迪勒拉地区，气候模式预测变暖将随着海拔的升高而增加，在中北纬度地区达到最大值(Bradley et al. 2004)。dendro年代学模型已经显示，加拿大落基山脉的夏季温度在20世纪20年代异常温暖
{"title":"Glacially mediated impacts of climate warming on alpine lakes of the Canadian Rocky Mountains","authors":"R. Vinebrooke, Patrick L. Thompson, W. Hobbs, B. Luckman, M. Graham, A. P. Wolfe","doi":"10.1080/03680770.2009.11902351","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902351","url":null,"abstract":"Climate warming is having a more pronounced impact ontemperature change in alpine and polar regions than on aglobal scale (Beniston 2006, Lemke et al. 2007). For theCordillera region of North America, climate models predictthat warming will increase with elevation, reaching its maxi-mum at mid-northern latitudes (Bradley et al. 2004). Den-drochronological models have already shown that summertemperatures in the Canadian Rockies were anomalouslywarm during the 20","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122207574","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902350
Diana P. López-Anaya, J. Alcocer, L. Oseguera, G. Vilaclara
Organic and inorganic matter in aquatic ecosystems may occur in both dissolved and particulate form. Seston is the particulate matter present in the water column that is composed of 2 fractions: organic and inorganic matter (MARGALEF 1983, WETZEL 1983). Inorganic matter could be lithogenic (clay and silt), biogenic (silica), andlor originated by chemical precipitation (carbonates) (EFFLER et al. 2002, PENG & EFFLER 2005). The study of seston mass and composition is important to understanding the dynamics of the organic and mineral matter (PUNNING et al. 2003). Previous studies from a wide diversity of geographic regions covering temperate and tropical zones report organic matter as the most abundant fraction of seston, predominantly particulate organic carbon that exhibits seasonal dynamics similar to those of chlorophyll a (CALLIERI 1997, JÃRVINEN et al. 1999, BRZÁKOVÁ et al. 2003, PUNNING et al. 2003); however, the seston of some lakes, such as Lake Maggiore, could be dominated by the inorganic fraction during certain periods (CALLIERI 1997). Although previous studies on warm, monomictic Lake Alchichica relate to dynamic aspects such its hydrodynamics (ALcOCER et al. 2000), nutrient concentration (SÁNCHEZ SILVA 2006), and phytoplankton biomass (SÁNCHEZ REYES 2001), the dynamics ofthe seston concentration, distribution, and composition was unknown. The purpose of this investigation was to analyze the seasonal and vertical variation of seston in Lake Alchichica to better understand the organic and inorganic matter dynamics in tropical, saline lakes.
{"title":"Seston dynamics in a saline Mexican lake","authors":"Diana P. López-Anaya, J. Alcocer, L. Oseguera, G. Vilaclara","doi":"10.1080/03680770.2009.11902350","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902350","url":null,"abstract":"Organic and inorganic matter in aquatic ecosystems may occur in both dissolved and particulate form. Seston is the particulate matter present in the water column that is composed of 2 fractions: organic and inorganic matter (MARGALEF 1983, WETZEL 1983). Inorganic matter could be lithogenic (clay and silt), biogenic (silica), andlor originated by chemical precipitation (carbonates) (EFFLER et al. 2002, PENG & EFFLER 2005). The study of seston mass and composition is important to understanding the dynamics of the organic and mineral matter (PUNNING et al. 2003). Previous studies from a wide diversity of geographic regions covering temperate and tropical zones report organic matter as the most abundant fraction of seston, predominantly particulate organic carbon that exhibits seasonal dynamics similar to those of chlorophyll a (CALLIERI 1997, JÃRVINEN et al. 1999, BRZÁKOVÁ et al. 2003, PUNNING et al. 2003); however, the seston of some lakes, such as Lake Maggiore, could be dominated by the inorganic fraction during certain periods (CALLIERI 1997). Although previous studies on warm, monomictic Lake Alchichica relate to dynamic aspects such its hydrodynamics (ALcOCER et al. 2000), nutrient concentration (SÁNCHEZ SILVA 2006), and phytoplankton biomass (SÁNCHEZ REYES 2001), the dynamics ofthe seston concentration, distribution, and composition was unknown. The purpose of this investigation was to analyze the seasonal and vertical variation of seston in Lake Alchichica to better understand the organic and inorganic matter dynamics in tropical, saline lakes.","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"27 5","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132359633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902357
S. Haaland, G. Riise, D. Hongve, O. Grøterud, I. Blakar
Concentrations of organic matter have increased in several lakes on the northern hemisphere since the mid 1970s. This is an important feature, since organic matter is an essential constituent for a range of biological, chemical and physical processes in water bodies. There have been several explanations for this increase, including climate change issues. There has however been no uniform increase o f TOC concentrations in lakes (similar situation in several countries on the northern hemisphere; i.e. EvANS et al. 2006, RouLET et al. 2006, SKJELKVÂLE et al. 2001). Changes in ionic strength in precipitation is mainly been controlled by natural sea-salt episodes and anthropogenic acid rain components, and the ionic strength has declined significantly in precipitation over the past decades, mainly due to the decline in sulphate emission from anthropogenic sources. Since the solubility of organic matter is reduced with increased ionic strength (e.g. TIPPING & HURLEY 1988), we have looked at the effect of changes in ionic strength in precipitation, and hence also in catchment surface waters, in Norwegian lakes. We have also looked at the importance of catchment buffer capacity, since pH might control the solubility o f soi l organic matter (i. e. DE WIT et al. 200 l). Our hypothesis has been that lakes with low buffer capacity, and in where sulphate has been a major inorganic constituent, have been the ones with the most pronounced percentage increase in TOC concentrations. Other types of lakes, either with different chemical composition or with some buffer capacity, were thought to have been less affected by the decline in anthropogenic acid components in precipitation.
{"title":"TOC concentrations in Norwegian lakes: The effect of sea-salts and anthropogenic acid components","authors":"S. Haaland, G. Riise, D. Hongve, O. Grøterud, I. Blakar","doi":"10.1080/03680770.2009.11902357","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902357","url":null,"abstract":"Concentrations of organic matter have increased in several lakes on the northern hemisphere since the mid 1970s. This is an important feature, since organic matter is an essential constituent for a range of biological, chemical and physical processes in water bodies. There have been several explanations for this increase, including climate change issues. There has however been no uniform increase o f TOC concentrations in lakes (similar situation in several countries on the northern hemisphere; i.e. EvANS et al. 2006, RouLET et al. 2006, SKJELKVÂLE et al. 2001). Changes in ionic strength in precipitation is mainly been controlled by natural sea-salt episodes and anthropogenic acid rain components, and the ionic strength has declined significantly in precipitation over the past decades, mainly due to the decline in sulphate emission from anthropogenic sources. Since the solubility of organic matter is reduced with increased ionic strength (e.g. TIPPING & HURLEY 1988), we have looked at the effect of changes in ionic strength in precipitation, and hence also in catchment surface waters, in Norwegian lakes. We have also looked at the importance of catchment buffer capacity, since pH might control the solubility o f soi l organic matter (i. e. DE WIT et al. 200 l). Our hypothesis has been that lakes with low buffer capacity, and in where sulphate has been a major inorganic constituent, have been the ones with the most pronounced percentage increase in TOC concentrations. Other types of lakes, either with different chemical composition or with some buffer capacity, were thought to have been less affected by the decline in anthropogenic acid components in precipitation.","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132546208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2010-01-01DOI: 10.1080/03680770.2009.11902353
V. Pichard, F. Pick, A. Martel
The ecology and conservation biology of freshwater mussels (superfamily Unionoidea) has been the subject of a rapidly increasing number o f field studies over the past two decades. Among the factors explaining this level o f interest is the realizatian that freshwater mussels are among the most endangered and threatened fauna {WILLIAMS et al. 1992). North America supports the largest variety offreshwater mussels o n the planet with over 300 recognized species and subspecies belonging to either the family Unionidae or Margaritiferidae (WrLLIAMS et al. 1992). In addition, aquatic biologists and conservation biologists recognize that, especially in flowing waters, freshwater mussels can play a significant functional ro le in filtering suspended particles and recycling nutrients (e.g. VAUGHN et al. 2004 ). Moreover, the hos t fish involved in the dispersal o f mussellarvae, as well as the conservation status ofthe species, are not well known for the majority of taxa. In a separate study ofthe water quality ofthe Raisin River system, Eastern Ontario, Canada, freshwater mussels were often found in riffie zones. A more detailed sampling was subsequently conducted to determine the structure ( abundance, diversity, and distribution) ofthe mussel communities and whether this structure could be explained by environmental factors. The specific objectives were to: (l) determine the species richness and quantify mussel abundance at a range of riffie si tes, (2) investigate their spatial distribution (within tributaries and between-tributaries or main branches) in relation to stream environmental factors, (3) determine relationships with habitat characteristics and environmental factors, and finally (4) examine the relationship between mussel and fish community structure.
近二十年来，淡水贻贝(超科)的生态学和保护生物学已成为越来越多的野外研究的主题。人们对淡水贻贝如此感兴趣的原因之一是人们认识到淡水贻贝是最濒危和受威胁的动物之一(WILLIAMS等人，1992年)。北美是地球上淡水贻贝种类最多的地区，有超过300个已知的物种和亚种，属于联合科或Margaritiferidae (WrLLIAMS等人，1992)。此外，水生生物学家和保护生物学家认识到，特别是在流动水域中，淡水贻贝可以在过滤悬浮颗粒和回收营养物质方面发挥重要的功能作用(例如VAUGHN et al. 2004)。此外，在大多数分类群中，参与贻贝幼虫传播的鱼类以及该物种的保护状况尚不清楚。在另一项对加拿大安大略省东部Raisin河水质的研究中，淡水贻贝经常出现在河流地带。随后进行了更详细的采样，以确定贻贝群落的结构(丰度、多样性和分布)，以及这种结构是否可以用环境因素来解释。研究的具体目标是:(1)确定不同河段贻贝的物种丰富度，并量化贻贝的丰度;(2)研究贻贝的空间分布(支流内、支流间或主干)与河流环境因子的关系;(3)确定与生境特征和环境因子的关系;(4)研究贻贝与鱼类群落结构的关系。
{"title":"Diversity, distribution, and abundance of freshwater mussels in the Raisin River drainage basin, Eastern Ontario, Canada","authors":"V. Pichard, F. Pick, A. Martel","doi":"10.1080/03680770.2009.11902353","DOIUrl":"https://doi.org/10.1080/03680770.2009.11902353","url":null,"abstract":"The ecology and conservation biology of freshwater mussels (superfamily Unionoidea) has been the subject of a rapidly increasing number o f field studies over the past two decades. Among the factors explaining this level o f interest is the realizatian that freshwater mussels are among the most endangered and threatened fauna {WILLIAMS et al. 1992). North America supports the largest variety offreshwater mussels o n the planet with over 300 recognized species and subspecies belonging to either the family Unionidae or Margaritiferidae (WrLLIAMS et al. 1992). In addition, aquatic biologists and conservation biologists recognize that, especially in flowing waters, freshwater mussels can play a significant functional ro le in filtering suspended particles and recycling nutrients (e.g. VAUGHN et al. 2004 ). Moreover, the hos t fish involved in the dispersal o f mussellarvae, as well as the conservation status ofthe species, are not well known for the majority of taxa. In a separate study ofthe water quality ofthe Raisin River system, Eastern Ontario, Canada, freshwater mussels were often found in riffie zones. A more detailed sampling was subsequently conducted to determine the structure ( abundance, diversity, and distribution) ofthe mussel communities and whether this structure could be explained by environmental factors. The specific objectives were to: (l) determine the species richness and quantify mussel abundance at a range of riffie si tes, (2) investigate their spatial distribution (within tributaries and between-tributaries or main branches) in relation to stream environmental factors, (3) determine relationships with habitat characteristics and environmental factors, and finally (4) examine the relationship between mussel and fish community structure.","PeriodicalId":404196,"journal":{"name":"Internationale Vereinigung für theoretische und angewandte Limnologie: Verhandlungen","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130197689","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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