Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300008
Ítalo Fernández-Cisternas, M. George-Nascimento, F. Patricio Ojeda
espanolLas costas de Chile y California central representan importantes puntos de comparacion para el estudio de convergencias ecologicas como la composicion de parasitos en distintos hospederos. Ambas costas presentan similares condiciones ambientales junto con compartir muchas familias de distintas especies. Se analizo la diversidad parasitaria de especies de peces de ambas zonas comparando si existe similitud entre estas faunas, ademas se determino la presencia de 6 grupos taxonomicos de parasitos a traves de la literatura y en bases de datos para cada zona (Chile y California). Se creo una matriz de presencia ausencia para las especies de peces estudiadas de ambas zonas y se realizo un analisis de similitud para probar si la composicion parasitaria era similar. Los taxones de parasitos mayormente encontrados en peces de California Central correspondieron a digeneos y nematodos mientras que en Chile central se encontro una mayor diversidad (Digenea, Annelida, Copepoda, Acanthocephala y Nematoda). El analisis de similitud mostro que las comunidades parasitarias entre Chile y California son diferentes significativamente, sin embargo, se obtuvieron sobreposiciones en la diversidad parasitaria agrupandose los hospedadores en 3 grupos, uno de los cuales estuvo conformado por hospedadores de ambas zonas. Esta diferencia puede ser explicada por la reducida diversidad de parasitos en el ensamble de peces del intermareal rocoso en California, tal vez debido a los escasos estudios existentes sobre parasitos de peces intermareales en California, junto con posibles factores no estudiados hasta el momento. EnglishThe coasts of central Chile and central California are important points of comparison in the study of ecological convergence such as a host's parasite load because of their similar environmental conditions and the shared presence of many families of different species. In this study, the diversity of parasites in fish species from both zones was analyzed and compared to establish if there are similarities between them. The presence of 6 taxonomic groups of parasites was determined using published literature and databases for each location. A presence-absence matrix was created for the fish species studied in Chile and California, and a similarity analysis was carried out to prove whether the parasite loads of both zones were similar. The parasite taxa most frequently found in fish in central California were Digenea and Nematoda, whereas in central Chile the common taxa were Digenea, Annelida, Copepoda, Acanthocephala, and Nematoda. The similarity analysis showed that the parasite composition was different between zones. Nevertheless, overlaps were obtained in the parasitic diversity grouping the host in 3 host groups, one of which consists of hosts from both zones. This difference can be explained by the low parasitic diversity in the assemble of rocky intertidal fishes in California, potentially due to the limited amount of existing studies on int
{"title":"Comparison of parasite diversity of intertidal fish assemblages from central California and central Chile","authors":"Ítalo Fernández-Cisternas, M. George-Nascimento, F. Patricio Ojeda","doi":"10.4067/S0718-19572017000300008","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300008","url":null,"abstract":"espanolLas costas de Chile y California central representan importantes puntos de comparacion para el estudio de convergencias ecologicas como la composicion de parasitos en distintos hospederos. Ambas costas presentan similares condiciones ambientales junto con compartir muchas familias de distintas especies. Se analizo la diversidad parasitaria de especies de peces de ambas zonas comparando si existe similitud entre estas faunas, ademas se determino la presencia de 6 grupos taxonomicos de parasitos a traves de la literatura y en bases de datos para cada zona (Chile y California). Se creo una matriz de presencia ausencia para las especies de peces estudiadas de ambas zonas y se realizo un analisis de similitud para probar si la composicion parasitaria era similar. Los taxones de parasitos mayormente encontrados en peces de California Central correspondieron a digeneos y nematodos mientras que en Chile central se encontro una mayor diversidad (Digenea, Annelida, Copepoda, Acanthocephala y Nematoda). El analisis de similitud mostro que las comunidades parasitarias entre Chile y California son diferentes significativamente, sin embargo, se obtuvieron sobreposiciones en la diversidad parasitaria agrupandose los hospedadores en 3 grupos, uno de los cuales estuvo conformado por hospedadores de ambas zonas. Esta diferencia puede ser explicada por la reducida diversidad de parasitos en el ensamble de peces del intermareal rocoso en California, tal vez debido a los escasos estudios existentes sobre parasitos de peces intermareales en California, junto con posibles factores no estudiados hasta el momento. EnglishThe coasts of central Chile and central California are important points of comparison in the study of ecological convergence such as a host's parasite load because of their similar environmental conditions and the shared presence of many families of different species. In this study, the diversity of parasites in fish species from both zones was analyzed and compared to establish if there are similarities between them. The presence of 6 taxonomic groups of parasites was determined using published literature and databases for each location. A presence-absence matrix was created for the fish species studied in Chile and California, and a similarity analysis was carried out to prove whether the parasite loads of both zones were similar. The parasite taxa most frequently found in fish in central California were Digenea and Nematoda, whereas in central Chile the common taxa were Digenea, Annelida, Copepoda, Acanthocephala, and Nematoda. The similarity analysis showed that the parasite composition was different between zones. Nevertheless, overlaps were obtained in the parasitic diversity grouping the host in 3 host groups, one of which consists of hosts from both zones. This difference can be explained by the low parasitic diversity in the assemble of rocky intertidal fishes in California, potentially due to the limited amount of existing studies on int","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"505-521"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000300008","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47931696","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300013
Jesús Serrato, Juana López Martínez, J. Romero, Alejandro Acevedo Cervantes, F. G. Magaña, D. L. Cota
espanolLas lagunas costeras se caracterizan por su alta diversidad, riqueza y abundancia de peces, las cuales pueden ser modificadas por la variabilidad de las condiciones ambientales. El presente estudio tiene como objetivo describir la estructura de la comunidad de peces y relacionar su variabilidad estacional con los parametros de temperatura y salinidad en una laguna costera. Durante 6 campanas de muestreo se recolectaron 4.199 peces, agrupados en 95 especies. Los resultados indicaron que la riqueza, diversidad y equidad tuvieron un comportamiento estacional similar con valores mayores durante otono 2010, primavera 2011 y 2012; la abundancia fue mayor en otono 2010, verano 2011 y 2012 y la biomasa en otono 2010 y verano 2011. La relacion de la temperatura y salinidad a traves del analisis RDA con los parametros ecologicos, indico que algunas de las especies dominantes son de afinidad calida y otras de afinidad fria. Mientras que la riqueza y diversidad se incrementan durante temporadas frias, la biomasa y equidad aumentan en las temporadas de mayor salinidad; por su parte la abundancia se incrementa en temporadas calidas. Las curvas ABC mostraron estres moderado durante invierno y verano de 2012 y el MDS indico la formacion de 4 grupos, dos integrados por 2 periodos de muestreo y dos por uno solo de ellos. Los parametros ecologicos presentaron variaciones estacionales debido a la influencia de los cambios en temperatura y salinidad. EnglishCoastal lagoons are characterized by high diversity, richness, and abundance of fishes, which can be modified by high variability of environmental conditions. The present study aims to describe the structure of the fish community and related its seasonal variability with temperature and salinity in a coastal lagoon. During 6 seasonal sampling campaigns 4,199 fish were collected and grouped in 95 species. The results indicated that richness, diversity and evenness indices showed similar pattern with higher values in autumn 2010, spring 2011 and 2012, abundance was higher in autumn 2010, summer 2011 and 2012 and biomass in autumn 2010 and summer 2011. Relationship of temperature and salinity through the RDA analysis with ecological parameters indicated that some dominant species are of warm affinity and other of cold affinity. Richness and diversity increase during cold seasons, while biomass and evenness increase in seasons of higher salinity and abundance increases in warm seasons. The ABC curves showed moderate stress in winter and summer 2012 and MDS indicate the formation of 4 groups, two integrated by 2 sampling periods and two by single sampling period. Ecological parameters showed seasonal variations because they are influenced by changes of temperature and salinity.
{"title":"Changes in fish community structures in a coastal lagoon in the Gulf of California, México","authors":"Jesús Serrato, Juana López Martínez, J. Romero, Alejandro Acevedo Cervantes, F. G. Magaña, D. L. Cota","doi":"10.4067/S0718-19572017000300013","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300013","url":null,"abstract":"espanolLas lagunas costeras se caracterizan por su alta diversidad, riqueza y abundancia de peces, las cuales pueden ser modificadas por la variabilidad de las condiciones ambientales. El presente estudio tiene como objetivo describir la estructura de la comunidad de peces y relacionar su variabilidad estacional con los parametros de temperatura y salinidad en una laguna costera. Durante 6 campanas de muestreo se recolectaron 4.199 peces, agrupados en 95 especies. Los resultados indicaron que la riqueza, diversidad y equidad tuvieron un comportamiento estacional similar con valores mayores durante otono 2010, primavera 2011 y 2012; la abundancia fue mayor en otono 2010, verano 2011 y 2012 y la biomasa en otono 2010 y verano 2011. La relacion de la temperatura y salinidad a traves del analisis RDA con los parametros ecologicos, indico que algunas de las especies dominantes son de afinidad calida y otras de afinidad fria. Mientras que la riqueza y diversidad se incrementan durante temporadas frias, la biomasa y equidad aumentan en las temporadas de mayor salinidad; por su parte la abundancia se incrementa en temporadas calidas. Las curvas ABC mostraron estres moderado durante invierno y verano de 2012 y el MDS indico la formacion de 4 grupos, dos integrados por 2 periodos de muestreo y dos por uno solo de ellos. Los parametros ecologicos presentaron variaciones estacionales debido a la influencia de los cambios en temperatura y salinidad. EnglishCoastal lagoons are characterized by high diversity, richness, and abundance of fishes, which can be modified by high variability of environmental conditions. The present study aims to describe the structure of the fish community and related its seasonal variability with temperature and salinity in a coastal lagoon. During 6 seasonal sampling campaigns 4,199 fish were collected and grouped in 95 species. The results indicated that richness, diversity and evenness indices showed similar pattern with higher values in autumn 2010, spring 2011 and 2012, abundance was higher in autumn 2010, summer 2011 and 2012 and biomass in autumn 2010 and summer 2011. Relationship of temperature and salinity through the RDA analysis with ecological parameters indicated that some dominant species are of warm affinity and other of cold affinity. Richness and diversity increase during cold seasons, while biomass and evenness increase in seasons of higher salinity and abundance increases in warm seasons. The ABC curves showed moderate stress in winter and summer 2012 and MDS indicate the formation of 4 groups, two integrated by 2 sampling periods and two by single sampling period. Ecological parameters showed seasonal variations because they are influenced by changes of temperature and salinity.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"567-579"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42986506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300016
J. F. Bermudes-Lizárraga, M. Nieves-Soto, M. A. Medina-Jasso, J. C. Román-Reyes, Luis Miguel Flores-Campaña, A. Ortega-Salas, P. Piña-Valdez
The purpose of this study was to evaluate the effect of 12 combinations of salinity and temperature on larval growth of Litopenaeus vannamei, starting in nauplius V (NV) and ending at postlarva (PL1), a process which lasted seven days. The results show that the larvae have greater length and weight at temperatures of 30 to 35°C in combination with salinities between 25 and 35. In conclusion, salinity and temperature are important factors to consider for the production of larvae of L. vannamei.
{"title":"Efecto de la temperatura y salinidad en el crecimiento larval de Litopenaeus vannamei","authors":"J. F. Bermudes-Lizárraga, M. Nieves-Soto, M. A. Medina-Jasso, J. C. Román-Reyes, Luis Miguel Flores-Campaña, A. Ortega-Salas, P. Piña-Valdez","doi":"10.4067/S0718-19572017000300016","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300016","url":null,"abstract":"The purpose of this study was to evaluate the effect of 12 combinations of salinity and temperature on larval growth of Litopenaeus vannamei, starting in nauplius V (NV) and ending at postlarva (PL1), a process which lasted seven days. The results show that the larvae have greater length and weight at temperatures of 30 to 35°C in combination with salinities between 25 and 35. In conclusion, salinity and temperature are important factors to consider for the production of larvae of L. vannamei.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"611-615"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45773084","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Thermal preference and tolerance of juvenile Anisotremus scapularis (Pisces: Haemulidae) at different acclimation temperatures (14, 17 and 22°C) were evaluated in order to estimate the optimum temperature and the thermal tolerance limits of this species. The preference was determined through acute preferred temperature. Maximum critical temperature and mean lethal temperature allowed to estimate thermal tolerance. The results show that acclimation temperatures higher than 14°C increase both thermal preference and tolerance. However, individuals acclimatized to 22°C preferred temperatures lower than their acclimation. In addition, thermal tolerance was identical between individuals acclimatized at 17°C and 22°C. The optimum temperature of juvenile A. scapularis was 18.7 ± 2°C and its upper and lower tolerance limit was 32.6 and 10.1°C, respectively. Based on the results, we concluded that a temperature of 18.7 ± 2°C would optimize the physiological processes in juvenile A. scapularis and that temperature higher than 32.6°C and lower than 10.1°C would cause the immediate death of the organism.
{"title":"Thermal preference and tolerance of Peruvian grunt Anisotremus scapularis juveniles (Pisces: Haemulidae), Preferencia y tolerancia térmica de juveniles de chita Anisotremus scapularis (Pisces: Haemulidae)","authors":"Candy León-Palomino, Jorge Flores-Mego, Jhon Dionicio-Acedo, Maryandrea Rosado-Salazar, Jonathan Flye-Sainte-Marie, Arturo Aguirre-Velarde","doi":"10.4067/s0718-19572017000300014","DOIUrl":"https://doi.org/10.4067/s0718-19572017000300014","url":null,"abstract":"Thermal preference and tolerance of juvenile Anisotremus scapularis (Pisces: Haemulidae) at different acclimation temperatures (14, 17 and 22°C) were evaluated in order to estimate the optimum temperature and the thermal tolerance limits of this species. The preference was determined through acute preferred temperature. Maximum critical temperature and mean lethal temperature allowed to estimate thermal tolerance. The results show that acclimation temperatures higher than 14°C increase both thermal preference and tolerance. However, individuals acclimatized to 22°C preferred temperatures lower than their acclimation. In addition, thermal tolerance was identical between individuals acclimatized at 17°C and 22°C. The optimum temperature of juvenile A. scapularis was 18.7 ± 2°C and its upper and lower tolerance limit was 32.6 and 10.1°C, respectively. Based on the results, we concluded that a temperature of 18.7 ± 2°C would optimize the physiological processes in juvenile A. scapularis and that temperature higher than 32.6°C and lower than 10.1°C would cause the immediate death of the organism.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"581-589"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/s0718-19572017000300014","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45086205","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300019
Rodrigo Araneda, Claudio N. Tobar, J. Rau, Jaime A. Cursach
The Magellanic Flightless Steamer Duck (Tachyeres pteneres) is the only marine anatid founded along the coastline of Chile and Argentina, from Valdivia to Tierra del Fuego. There is little published information about the quantitative diet of this species. Previously, a single study of its breeding diet was reported for Guapiquilan Island, Chiloe, southern Chile. We studied T. pteneres' winter diet during 2011 and 2012 in Bahia Caulin, Chiloe, southern Chile. We found that statistically Cancridae crabs (100 and 100%, respectively) and Majidae (96.0-71.4%, respectively) were the most common items in the diet of this species.
{"title":"Dieta del pato quetru no volador Tachyeres pteneres en un humedal marino de Chiloé, sur de Chile","authors":"Rodrigo Araneda, Claudio N. Tobar, J. Rau, Jaime A. Cursach","doi":"10.4067/S0718-19572017000300019","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300019","url":null,"abstract":"The Magellanic Flightless Steamer Duck (Tachyeres pteneres) is the only marine anatid founded along the coastline of Chile and Argentina, from Valdivia to Tierra del Fuego. There is little published information about the quantitative diet of this species. Previously, a single study of its breeding diet was reported for Guapiquilan Island, Chiloe, southern Chile. We studied T. pteneres' winter diet during 2011 and 2012 in Bahia Caulin, Chiloe, southern Chile. We found that statistically Cancridae crabs (100 and 100%, respectively) and Majidae (96.0-71.4%, respectively) were the most common items in the diet of this species.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"631-634"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000300019","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46040200","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300002
Rocio Nava-Olvera, L. E. Mateo-Cid, Á. Mendoza-González, Deisy Yazmín García-López
espanolEl pasto marino Thalassia testudinum, alberga una alta riqueza especifica de epifitas debido a su morfologia y abundancia en la costa del Atlantico mexicano. Los epifitos son un importante elemento por su composicion taxonomica y grupos funcionales, ademas pueden utilizarse como bioindicadores. Se comparo la composicion de algas epifitas de un forofito comun en dos ecorregiones: Santa Rosa, Quintana Roo de aguas oligotroficas y Penacho del Indio, Veracruz de aguas eutroficas. Se esperaba obtener una mayor cobertura de algas foliosas y filamentosas en la pradera de Penacho del Indio debido a su naturaleza eutrofica. Se determinaron 77 especies epifitas, 43 en Penacho del Indio y 46 en Santa Rosa. De ellas, 17 especies corresponden a Cyanobacteria, 38 Rhodophyta, 11 Phaeophyceae y 11 Chlorophyta. Chondria pygmaea, Myrionema magnusii, Hecatonema floridanum, Rosenvingea sanctae-crucis y 7 cianobacterias representan nuevos registros para la costa Atlantica de Mexico. Centroceras hyalacanthum y Myrionema strangulans son nuevos registros para Veracruz. Los grupos funcionales fueron representados por 39 filamentosas, 20 microalgas, 9 macrofitas corticadas, 5 foliosas, 3 costrosas y 1 macrofita articulada calcarea. Las algas rojas presentan una mayor riqueza especifica en ambos sitios, seguido por las algas verdes en Penacho del Indio y microalgas en Santa Rosa. El epifitismo de foliosas, filamentosas, asi como macrofitas corticadas, tuvo mayor cobertura y biomasa en Penacho del Indio. El notorio desarrollo de Ulva en este sitio corrobora su condicion eutrofica, mientras que en Santa Rosa, la composicion de epifitas sugiere la presencia de aguas oligotroficas. EnglishThe seagrass Thalassia testudinum harbors a high specific richness of epiphytic algae due to its morphology and abundance on the coast of the Mexican Atlantic. Epiphytic algae are an important component because of its taxonomic composition and functional groups; additionally, they can be employed as bioindicators. The composition of epiphytic algae of a common forophyte was compared in two ecoregions: Santa Rosa, Quintana Roo with oligotrophic waters and Penacho del Indio, Veracruz with eutrophic waters. Larger coverage of foliate and filamentous algae was expected in the Penacho del Indio prairie due to its eutrophic nature. Seventy seven species of epiphytes were determined, 43 in Penacho del Indio and 46 in Santa Rosa. Overall, 17 species belonged to Cyanobacteria, 38 to Rhodophyta, 11 to Phaeophyceae and 11 to Chlorophyta. Chondria pygmaea, Myrionema magnusii, Hecatonema floridanum, Rosenvingea sanctae-crucis and 7 cyanobacteria represent new registers for the Atlantic coast of Mexico. Centroceras hyalacanthum and Myrionema strangulans are new records for Veracruz. The functional groups were represented by: 39 filamentous algae, 20 microalgae, 9 corticated macrophytes, 5 foliose algae, 3 crustose and one calcareous articulated macrophyte. Red algae displayed the highest specific ri
西班牙海草Thalassia testudinum因其在墨西哥大西洋沿岸的形态和丰度而拥有丰富的附生植物。附生植物因其分类组成和功能群而成为重要的元素，也可作为生物标志物。比较了两个生态区常见食腐动物的附生藻类组成：圣罗莎、Quintana Roo de Oligotrophics和Penacho del Indio、韦拉克鲁斯de富营养化水域。由于其富营养化性质，预计印度羽流草原上的滤泡和丝状藻类将得到更大的覆盖。测定了77种附生植物，其中43种在印度羽流中，46种在圣罗莎。其中，蓝藻17种，红藻38种，藻科11种，绿藻11种。Chondria pygmea、Myrionema magnusii、Hecatonema floridanum、Rosenvingea Sanctae Crucis和7种蓝藻代表了墨西哥大西洋沿岸的新记录。Hyalacanthum Centroceras和Myrionema strangulans是韦拉克鲁斯的新记录。功能群由39种丝状植物、20种微藻、9种短柄大型植物、5种小叶植物、3种结壳植物和1种钙质关节大型植物组成。红藻在这两个地方都有更大的特定丰富性，其次是印度羽流中的绿藻和圣罗莎的微藻。小叶、丝状和短枝大型植物的表生作用在印度羽流中的覆盖率和生物量较高。乌尔瓦在这个地方的臭名昭著的发展证实了它的富营养化状况，而在圣罗莎，附生植物的组成表明存在寡营养化水。由于其形态和在墨西哥大西洋沿岸的丰富性，海草Testudinum Harbors具有很高的表生藻类特异性。附生藻类因其分类组成和功能群而成为重要组成部分；此外，它们可以用作生物指标。在两个生态区比较了一种常见食草动物的附生藻类的组成：圣罗莎、金塔纳罗奥（Quintana Roo）和印度羽流，韦拉克鲁斯（Veracruz）和富营养化水。由于其富营养化性质，预计印度草原羽流中的叶状和丝状藻类覆盖率更高。确定了77种附生植物，其中43种在印度羽流中，46种在圣罗莎。总体而言，有17种属于蓝藻，38种属于红藻，11种属于嗜酸性菌，11种属于绿藻。Chondria Pygmea、Myrionema Magnusii、Hecatonema Floridanum、Rosenvingea Sanctae Crucis和7种蓝藻代表了墨西哥大西洋海岸的新记录。Hyalacanthum Centroceras和Myrionema strangulans是韦拉克鲁斯的新纪录。功能群由：39种丝状藻类、20种微藻、9种皮层大型植物、5种叶状藻类、3种甲壳类动物和1种钙质节理大型植物组成。红藻在这两个地点的特异性都最高，其次是印度羽流中的绿藻和圣罗莎的微藻。叶状、丝状和皮层大型植物的附生作用在印度羽流中的覆盖率和生物量更大。ULVA在这一地点的显著发展支持了其富营养化条件，而圣罗莎的附生植物组成表明存在营养不良的水。
{"title":"Macroalgas, microalgas y cianobacterias epífitas del pasto marino Thalassia testudinum (Tracheophyta: Alismatales) en Veracruz y Quintana Roo, Atlántico mexicano","authors":"Rocio Nava-Olvera, L. E. Mateo-Cid, Á. Mendoza-González, Deisy Yazmín García-López","doi":"10.4067/S0718-19572017000300002","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300002","url":null,"abstract":"espanolEl pasto marino Thalassia testudinum, alberga una alta riqueza especifica de epifitas debido a su morfologia y abundancia en la costa del Atlantico mexicano. Los epifitos son un importante elemento por su composicion taxonomica y grupos funcionales, ademas pueden utilizarse como bioindicadores. Se comparo la composicion de algas epifitas de un forofito comun en dos ecorregiones: Santa Rosa, Quintana Roo de aguas oligotroficas y Penacho del Indio, Veracruz de aguas eutroficas. Se esperaba obtener una mayor cobertura de algas foliosas y filamentosas en la pradera de Penacho del Indio debido a su naturaleza eutrofica. Se determinaron 77 especies epifitas, 43 en Penacho del Indio y 46 en Santa Rosa. De ellas, 17 especies corresponden a Cyanobacteria, 38 Rhodophyta, 11 Phaeophyceae y 11 Chlorophyta. Chondria pygmaea, Myrionema magnusii, Hecatonema floridanum, Rosenvingea sanctae-crucis y 7 cianobacterias representan nuevos registros para la costa Atlantica de Mexico. Centroceras hyalacanthum y Myrionema strangulans son nuevos registros para Veracruz. Los grupos funcionales fueron representados por 39 filamentosas, 20 microalgas, 9 macrofitas corticadas, 5 foliosas, 3 costrosas y 1 macrofita articulada calcarea. Las algas rojas presentan una mayor riqueza especifica en ambos sitios, seguido por las algas verdes en Penacho del Indio y microalgas en Santa Rosa. El epifitismo de foliosas, filamentosas, asi como macrofitas corticadas, tuvo mayor cobertura y biomasa en Penacho del Indio. El notorio desarrollo de Ulva en este sitio corrobora su condicion eutrofica, mientras que en Santa Rosa, la composicion de epifitas sugiere la presencia de aguas oligotroficas. EnglishThe seagrass Thalassia testudinum harbors a high specific richness of epiphytic algae due to its morphology and abundance on the coast of the Mexican Atlantic. Epiphytic algae are an important component because of its taxonomic composition and functional groups; additionally, they can be employed as bioindicators. The composition of epiphytic algae of a common forophyte was compared in two ecoregions: Santa Rosa, Quintana Roo with oligotrophic waters and Penacho del Indio, Veracruz with eutrophic waters. Larger coverage of foliate and filamentous algae was expected in the Penacho del Indio prairie due to its eutrophic nature. Seventy seven species of epiphytes were determined, 43 in Penacho del Indio and 46 in Santa Rosa. Overall, 17 species belonged to Cyanobacteria, 38 to Rhodophyta, 11 to Phaeophyceae and 11 to Chlorophyta. Chondria pygmaea, Myrionema magnusii, Hecatonema floridanum, Rosenvingea sanctae-crucis and 7 cyanobacteria represent new registers for the Atlantic coast of Mexico. Centroceras hyalacanthum and Myrionema strangulans are new records for Veracruz. The functional groups were represented by: 39 filamentous algae, 20 microalgae, 9 corticated macrophytes, 5 foliose algae, 3 crustose and one calcareous articulated macrophyte. Red algae displayed the highest specific ri","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"429-439"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000300002","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42800353","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300018
Marta Oróstica, M. Calderón, Sung Min Boo, C. Sandoval, M. Edding
The diversity of the genus Ulva in South American waters is matter of debate. Specimens of Ulva sp. were collected in northern Chile and analyzed using sequences of rbcL and tufA genes in combination with morphological observations. Molecular analyses revealed the presence of Ulva australis, a native species from northeast Asia that has also been recently recorded in southern Chile. Based on these results, an extension of the geographical distribution of U. australis toward northern Chile is reported.
{"title":"Nuevo registro de Ulva australis (Ulvaceae, Chlorophyta) en el norte de Chile","authors":"Marta Oróstica, M. Calderón, Sung Min Boo, C. Sandoval, M. Edding","doi":"10.4067/S0718-19572017000300018","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300018","url":null,"abstract":"The diversity of the genus Ulva in South American waters is matter of debate. Specimens of Ulva sp. were collected in northern Chile and analyzed using sequences of rbcL and tufA genes in combination with morphological observations. Molecular analyses revealed the presence of Ulva australis, a native species from northeast Asia that has also been recently recorded in southern Chile. Based on these results, an extension of the geographical distribution of U. australis toward northern Chile is reported.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"621-630"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000300018","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48459987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300010
Edgar Alexander Zapata-Vívenes, O. Nusetti, L. Marcano
espanolAlgunas respuestas antioxidantes e indices instantaneos de condicion (proteinas:ADN y ARN:ADN) fueron determinados en el poliqueto Eurythoe complanata colectado en el Golfo de Cariaco (Venezuela) durante diciembre 2009 (26,03 ± 0,64°C); febrero (23,96 ± 0,67°C), junio (27,82 ± 0,50°C) y octubre 2010 (29,93 ± 0,37°C). Tambien se estimo el numero de ejemplares colectados con senales de regeneracion tisular. Paralelamente, fue llevado a cabo un bioensayo de aclimatacion a 24 y 28°C por un lapso de 36 dias. El tejido muscular se uso para determinar las actividades de las enzimas: catalasa (CAT), glucosa-6-P deshidrogenasa (G6PDH), glutation-S-transferasa (GST); y niveles de dano oxidativo (TBARS), metalotioneinas (MT) y grupos tioles totales (-SH). Ademas, fueron determinados los niveles de ADN, ARN y proteinas, y sus indices relacionados. En la temporada de no surgencia (junio y octubre 2010), caracterizada por temperaturas promedio que sobrepasan los 28°C, fueron observados incrementos en CAT, TBARS y ADN. Sin embargo, las actividades de G6PDH, GST, MT y -SH no presentaron diferencias estacionales ni variaron en los bioensayos de aclimatacion. De igual forma, en la temporada de no surgencia se observo un mayor numero de individuos con senales de regeneracion. Los indices ARN:ADN y PT:ADN demuestran un crecimiento continuo de la especie durante todo el ano y un aumento en la sintesis de proteinas solo en temporadas de bajas temperaturas (surgencia), respectivamente. La capacidad antioxidante, el dano lipoperoxidativo y el crecimiento somatico en E. complanata son estimulados en las temporadas de temperaturas maximas. EnglishSome antioxidant responses and molecular index of growth (protein:DNA and RNA:DNA) were determined in the polychaete Eurythoe complanata collected from Gulf of Cariaco (Venezuela) during December 2009 (26.03 ± 0.64°C), February (23.96 ± 0.67°C), June (27.82 ± 0.50°C) and October 2010 (29.93 ± 0.37°C). Also, the number of individuals with signs of tissue regeneration was counted. Concomitantly, a bioassay of acclimatization was carried out at 24 and 28°C during 36 days. Muscular tissue was used to determine enzymatic activities of catalase (CAT), glucose-6-P dehydrogenase (G6PDH), glutathione-s-transferase (GST); oxidative damage (TBARS), metallothionein (MT) and thiols (-SH) concentrations. DNA, RNA and proteins (PT) concentrations and their related indexes were determined. During `no upwelling' season (June and October 2010), when the mean temperature exceeds 28°C, there were increases in CAT, TBARS and DNA. G6PDH, GST, MT and -SH did not vary seasonally or in acclimatizing bioassays. Similarly, in this season a number of individuals collected with new setigers were observed. RNA:DNA and PT:DNA indices demonstrate a continuous growth of the species throughout the year and a significant increase of protein synthesis in low temperatures season (upwelling), respectively. Somatic growth, lipoperoxidative damage and antioxidan
{"title":"Variaciones temporales de las defensas antioxidantes e índices proteína:ADN y ARN:ADN en el poliqueto Eurythoe complanata","authors":"Edgar Alexander Zapata-Vívenes, O. Nusetti, L. Marcano","doi":"10.4067/S0718-19572017000300010","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300010","url":null,"abstract":"espanolAlgunas respuestas antioxidantes e indices instantaneos de condicion (proteinas:ADN y ARN:ADN) fueron determinados en el poliqueto Eurythoe complanata colectado en el Golfo de Cariaco (Venezuela) durante diciembre 2009 (26,03 ± 0,64°C); febrero (23,96 ± 0,67°C), junio (27,82 ± 0,50°C) y octubre 2010 (29,93 ± 0,37°C). Tambien se estimo el numero de ejemplares colectados con senales de regeneracion tisular. Paralelamente, fue llevado a cabo un bioensayo de aclimatacion a 24 y 28°C por un lapso de 36 dias. El tejido muscular se uso para determinar las actividades de las enzimas: catalasa (CAT), glucosa-6-P deshidrogenasa (G6PDH), glutation-S-transferasa (GST); y niveles de dano oxidativo (TBARS), metalotioneinas (MT) y grupos tioles totales (-SH). Ademas, fueron determinados los niveles de ADN, ARN y proteinas, y sus indices relacionados. En la temporada de no surgencia (junio y octubre 2010), caracterizada por temperaturas promedio que sobrepasan los 28°C, fueron observados incrementos en CAT, TBARS y ADN. Sin embargo, las actividades de G6PDH, GST, MT y -SH no presentaron diferencias estacionales ni variaron en los bioensayos de aclimatacion. De igual forma, en la temporada de no surgencia se observo un mayor numero de individuos con senales de regeneracion. Los indices ARN:ADN y PT:ADN demuestran un crecimiento continuo de la especie durante todo el ano y un aumento en la sintesis de proteinas solo en temporadas de bajas temperaturas (surgencia), respectivamente. La capacidad antioxidante, el dano lipoperoxidativo y el crecimiento somatico en E. complanata son estimulados en las temporadas de temperaturas maximas. EnglishSome antioxidant responses and molecular index of growth (protein:DNA and RNA:DNA) were determined in the polychaete Eurythoe complanata collected from Gulf of Cariaco (Venezuela) during December 2009 (26.03 ± 0.64°C), February (23.96 ± 0.67°C), June (27.82 ± 0.50°C) and October 2010 (29.93 ± 0.37°C). Also, the number of individuals with signs of tissue regeneration was counted. Concomitantly, a bioassay of acclimatization was carried out at 24 and 28°C during 36 days. Muscular tissue was used to determine enzymatic activities of catalase (CAT), glucose-6-P dehydrogenase (G6PDH), glutathione-s-transferase (GST); oxidative damage (TBARS), metallothionein (MT) and thiols (-SH) concentrations. DNA, RNA and proteins (PT) concentrations and their related indexes were determined. During `no upwelling' season (June and October 2010), when the mean temperature exceeds 28°C, there were increases in CAT, TBARS and DNA. G6PDH, GST, MT and -SH did not vary seasonally or in acclimatizing bioassays. Similarly, in this season a number of individuals collected with new setigers were observed. RNA:DNA and PT:DNA indices demonstrate a continuous growth of the species throughout the year and a significant increase of protein synthesis in low temperatures season (upwelling), respectively. Somatic growth, lipoperoxidative damage and antioxidan","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"529-538"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000300010","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49044337","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300021
Elson Leal, C. Muñoz, Guillermo Moyano, Claudio Bernal, Antonio Aranis
Relevant traits of eggs and larvae of Patagonian sprat (Sprattus fuegensis), obtained from adult reproduction in captivity conditions, were studied. Temperature for adult acclimation and for incubation of eggs and larvae was not controlled; however it ranged with a mean of 13 ± 2 °C. Adult sprat maintained in cylindrical ponds of 2000-L spawned spontaneously at the first night after catch, probably due to catch stress. The eggs were spherical with a diameter ranging between 0.89 and 1.06 mm (mean 1.00 ± 0.05 mm, n= 54). The larvae hatched between the fourth and fifth day after spawning and their size varied between 2.83 and 4.11 mm long (mean 3.56 ± 0.34 mm, n= 39). The yolk sac reached a volume of between 0.11 and 0.22 mm³ (mean 0.18 ± 0.033 mm³, n= 32) and was exhausted by the third day post hatching (dph). Larval growth only occurred during the endogenous feeding period (efp) and survival did not exceed 6 dph, probably due to inappropriate conditions for feeding and growth.
{"title":"A first experience of Patagonian sprat Sprattus fuegensis spawning in captivity: Adult acclimation, egg and larval measurements","authors":"Elson Leal, C. Muñoz, Guillermo Moyano, Claudio Bernal, Antonio Aranis","doi":"10.4067/S0718-19572017000300021","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300021","url":null,"abstract":"Relevant traits of eggs and larvae of Patagonian sprat (Sprattus fuegensis), obtained from adult reproduction in captivity conditions, were studied. Temperature for adult acclimation and for incubation of eggs and larvae was not controlled; however it ranged with a mean of 13 ± 2 °C. Adult sprat maintained in cylindrical ponds of 2000-L spawned spontaneously at the first night after catch, probably due to catch stress. The eggs were spherical with a diameter ranging between 0.89 and 1.06 mm (mean 1.00 ± 0.05 mm, n= 54). The larvae hatched between the fourth and fifth day after spawning and their size varied between 2.83 and 4.11 mm long (mean 3.56 ± 0.34 mm, n= 39). The yolk sac reached a volume of between 0.11 and 0.22 mm³ (mean 0.18 ± 0.033 mm³, n= 32) and was exhausted by the third day post hatching (dph). Larval growth only occurred during the endogenous feeding period (efp) and survival did not exceed 6 dph, probably due to inappropriate conditions for feeding and growth.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"641-645"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000300021","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43741216","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2017-12-01DOI: 10.4067/S0718-19572017000300017
S. Cházaro-Olvera, Gerardo Arturo Hernández-Vidal, M. Ortiz, I. Winfield
The crustaceans from the Alpheidae family often have relation with other sessile marine invertebrates, particularly with sponges. The aim of this work was to know the number de individual, measures and sex ratio of the species of alpheids that be associated with the sponge Aiolochroia crassa. The study was made in Parque Nacional Arrecife de Puerto Morelos, during June 2013. A sponge was found and identified as Aiolochroia crassa, from which the crustaceans were extracted. One hundred and thirty six organisms were collected from the Alpheidae family. The most abundant species was Synalpheus herricki with 96 organisms, followed by S. pandionis with 39 and Alpheus cylindricus with just one organism, the cephalothorax length, maximum height, maximum width and total length were measured and comparisons were made between males and females, finding significant differences for all biometrics in both species. Between the two Synalpheus species significant differences were found only for the maximum height. As in other works, in this study also a 1:1 sex ratio was found, which indicates that the organisms form heterosexual couples.
{"title":"Primer registro de la asociación de Synalpheus herricki y S. pandionis con Aiolochroia crassa en el parque nacional arrecife Puerto Morelos, Quintana Roo, México","authors":"S. Cházaro-Olvera, Gerardo Arturo Hernández-Vidal, M. Ortiz, I. Winfield","doi":"10.4067/S0718-19572017000300017","DOIUrl":"https://doi.org/10.4067/S0718-19572017000300017","url":null,"abstract":"The crustaceans from the Alpheidae family often have relation with other sessile marine invertebrates, particularly with sponges. The aim of this work was to know the number de individual, measures and sex ratio of the species of alpheids that be associated with the sponge Aiolochroia crassa. The study was made in Parque Nacional Arrecife de Puerto Morelos, during June 2013. A sponge was found and identified as Aiolochroia crassa, from which the crustaceans were extracted. One hundred and thirty six organisms were collected from the Alpheidae family. The most abundant species was Synalpheus herricki with 96 organisms, followed by S. pandionis with 39 and Alpheus cylindricus with just one organism, the cephalothorax length, maximum height, maximum width and total length were measured and comparisons were made between males and females, finding significant differences for all biometrics in both species. Between the two Synalpheus species significant differences were found only for the maximum height. As in other works, in this study also a 1:1 sex ratio was found, which indicates that the organisms form heterosexual couples.","PeriodicalId":54475,"journal":{"name":"Revista De Biologia Marina Y Oceanografia","volume":"52 1","pages":"617-620"},"PeriodicalIF":0.4,"publicationDate":"2017-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.4067/S0718-19572017000300017","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43980139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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