J. G. Cinco, J. Farma, J. D. Silvosa, C. B. Weling, J. T. Cuadrado
Despite its economic importance and current conservation status, studies on Sardinella lemuru (Bleeker, 1853) are very scarce in the province of Surigao del Norte, Philippines, so this study was conducted to assess the body shape and health status of fish populations in the area using fluctuating asymmetry (FA) and length-weight ratio (LWR) analyses. 258 individuals were collected from the coastal waters of Malimono (n = 6), San Francisco (n = 101) and Surigao (100) from August to October 2021 using fishnets and gillnets. Among the three populations, fish samples from Malimono have the highest cumulative variation of 63.07 % followed by San Francisco and Surigao City (60.85 % and 55.51 %). The high percentage of FA among the three populations (57.66 % in Malimono; 54.43 % in San Francisco; and 49.78 % in Surigao City) also suggests that individuals had deformities particularly, especially in the fins and head region of the fish. The LWR of the fish samples (b = 2.6398 in Malimono; b = 2.7541 in San Francisco; and b = 2.8377 in Surigao City) indicates a negative allometric growth pattern, suggesting that the fish samples do not grow symmetrically or become thinner with increasing length. The results of FA and LWR analyses suggest morphological abnormalities in the fish samples that may be attributed to the different environmental stressors in the area. Studies on sex differences, water quality and fish ecology are suggested to better understand the current status of fish in the area.
尽管lemuru Sardinella (Bleeker, 1853)具有重要的经济价值和目前的保护状况，但在菲律宾北苏里高省(Surigao del Norte)对其进行的研究非常少，因此本研究采用波动不对称(FA)和长重比(LWR)分析来评估该地区鱼类种群的体型和健康状况。于2021年8月至10月在马里莫诺(n = 6)、旧金山(n = 101)和苏里高(100)沿海水域使用渔网和刺网采集了258只个体。在3个种群中，马里莫诺的鱼类样本累积变异率最高，为63.07%，其次是旧金山市(60.85%)和苏里高市(55.51%)。3个种群中FA比例较高(Malimono为57.66%;旧金山54.43%;(在苏里高市占49.78%)也表明个体有特别的畸形，特别是在鱼鳍和头部区域。Malimono鱼样LWR (b = 2.6398);b = 2.7541在旧金山;， b = 2.8377)为负异速生长模式，表明鱼样不随长度的增加而对称生长或变薄。FA和LWR分析的结果表明，鱼类样本的形态异常可能归因于该地区不同的环境压力源。建议对性别差异、水质和鱼类生态进行研究，以更好地了解该地区鱼类的现状。
{"title":"Fluctuating Asymmetry and Length-Weight Relationship of the Three Populations of Sardinella lemuru (Clupeiformes, Dorosomatidae) from Surigao del Norte, Philippines","authors":"J. G. Cinco, J. Farma, J. D. Silvosa, C. B. Weling, J. T. Cuadrado","doi":"10.15407/zoo2023.04.293","DOIUrl":"https://doi.org/10.15407/zoo2023.04.293","url":null,"abstract":"Despite its economic importance and current conservation status, studies on Sardinella lemuru (Bleeker, 1853) are very scarce in the province of Surigao del Norte, Philippines, so this study was conducted to assess the body shape and health status of fish populations in the area using fluctuating asymmetry (FA) and length-weight ratio (LWR) analyses. 258 individuals were collected from the coastal waters of Malimono (n = 6), San Francisco (n = 101) and Surigao (100) from August to October 2021 using fishnets and gillnets. Among the three populations, fish samples from Malimono have the highest cumulative variation of 63.07 % followed by San Francisco and Surigao City (60.85 % and 55.51 %). The high percentage of FA among the three populations (57.66 % in Malimono; 54.43 % in San Francisco; and 49.78 % in Surigao City) also suggests that individuals had deformities particularly, especially in the fins and head region of the fish. The LWR of the fish samples (b = 2.6398 in Malimono; b = 2.7541 in San Francisco; and b = 2.8377 in Surigao City) indicates a negative allometric growth pattern, suggesting that the fish samples do not grow symmetrically or become thinner with increasing length. The results of FA and LWR analyses suggest morphological abnormalities in the fish samples that may be attributed to the different environmental stressors in the area. Studies on sex differences, water quality and fish ecology are suggested to better understand the current status of fish in the area.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67088590","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}
L. A. Jawad, M. Y. Dörtbudak, H. Yalçin, J. M. Park
Otolith traits such as size and mass were investigated in 60 fish specimens of C. kais and C. macrostomum collected from the Tigris River, Şırnak region, Türkiye collected from September 2015 to December 2015. The purpose of this work was to determine the asymmetry level in the otolith length (OL), otolith width (OW), and otolith mass (OM). OL's rate of asymmetry was greater than OW’s and OM's. The asymmetry in the three otolith traits rose with the fish length. The plausible reason for asymmetry in the otolith features explored has been considered relative to the inconsistency of growth triggered by ecological influence associated with the inconsistency in water temperature, salinity, depth, and contaminants occurring in the Tigris River System.
{"title":"Bilateral Asymmetry in Asterisci Otoliths of Cyprinion kais and C. macrostomum (Cypriniformes, Cyprinidae) collected from Tigris River, Şirnak Region, Türkiye","authors":"L. A. Jawad, M. Y. Dörtbudak, H. Yalçin, J. M. Park","doi":"10.15407/zoo2023.05.411","DOIUrl":"https://doi.org/10.15407/zoo2023.05.411","url":null,"abstract":"Otolith traits such as size and mass were investigated in 60 fish specimens of C. kais and C. macrostomum collected from the Tigris River, Şırnak region, Türkiye collected from September 2015 to December 2015. The purpose of this work was to determine the asymmetry level in the otolith length (OL), otolith width (OW), and otolith mass (OM). OL's rate of asymmetry was greater than OW’s and OM's. The asymmetry in the three otolith traits rose with the fish length. The plausible reason for asymmetry in the otolith features explored has been considered relative to the inconsistency of growth triggered by ecological influence associated with the inconsistency in water temperature, salinity, depth, and contaminants occurring in the Tigris River System.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"31 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134980337","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}
M. R. Borkar, V. Quadros D'Sa, P. Sail, M. A. C. Lizanne
Amblypygi have a tropical and sub-tropical distribution and their first of the four pairs of legs, is modified as feelers. Their activity period and dark habitats render visual cues ineffective and they rely on non-visual sensory perception. There is agreement among researchers that the whip spiders invest in olfactory and tactile senses imparted by sensory structures concentrated on the tarsal segment of the first pair of long, well-articulated non-ambulatory legs that are constantly moved in all directions to sample the environment for detecting location of prey, as also for navigating. This is the first attempt to elucidate the sensory structures present on the antenniform legs of the whip spider, Phrynichus phipsoni (Pocock, 1894), collected from the state of Goa, India; using scanning electron micro[1]scope, and paves way for further research on sensory biology of this cryptic arachnid order. The examined specimen generally conforms to the diversity and morphology of sensory assemblage on the antenniform legs reported in other amblypygi species. Sensory structures elucidated include terminal trident tarsal claws, tarsal organ, bristles, porous sensilla, club sensilla, rod sensilla, slit sensilla, trichobothria, plate organ, pit organ and foliate leaf like hairs.
{"title":"Sensory Structures on the Antenniform Legs of Whip Spider, Phrynichus phipsoni (Arachnida, Amblypygi), from the Indian State of Goa: Scanning Electron Microscopic Elucidation","authors":"M. R. Borkar, V. Quadros D'Sa, P. Sail, M. A. C. Lizanne","doi":"10.15407/zoo2023.05.451","DOIUrl":"https://doi.org/10.15407/zoo2023.05.451","url":null,"abstract":"Amblypygi have a tropical and sub-tropical distribution and their first of the four pairs of legs, is modified as feelers. Their activity period and dark habitats render visual cues ineffective and they rely on non-visual sensory perception. There is agreement among researchers that the whip spiders invest in olfactory and tactile senses imparted by sensory structures concentrated on the tarsal segment of the first pair of long, well-articulated non-ambulatory legs that are constantly moved in all directions to sample the environment for detecting location of prey, as also for navigating. This is the first attempt to elucidate the sensory structures present on the antenniform legs of the whip spider, Phrynichus phipsoni (Pocock, 1894), collected from the state of Goa, India; using scanning electron micro[1]scope, and paves way for further research on sensory biology of this cryptic arachnid order. The examined specimen generally conforms to the diversity and morphology of sensory assemblage on the antenniform legs reported in other amblypygi species. Sensory structures elucidated include terminal trident tarsal claws, tarsal organ, bristles, porous sensilla, club sensilla, rod sensilla, slit sensilla, trichobothria, plate organ, pit organ and foliate leaf like hairs.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134980418","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}
The paper describes a series of turtle remains from the Early Late Miocene of Grytsiv (Khmelnytskyi Oblast, Ukraine). This fossil assemblage was quite diverse and included representatives of four families (Emydidae, Geoemydidae, Testudinidae, and Trionychidae), most of which are described only to the family level due to incompleteness. The discovery of shell fragments, identified here as Testudo chernovi, is the earliest record of this species on the territory of Ukraine. Scratches on the nuchal of T. chernovi are interpreted as traces of gnawing or rasping and are described as a new ichnospecies, Machichnus inrosus isp. n. These traces are identified as gnawing marks of the rodent Anomalomys grytsivensis, as evidenced by the width of the lower incisors and the presence of two characteristic longitudinal ridges on their labial surface.
{"title":"Late Miocene Turtles of Grytsiv (western Ukraine) with Rodent Gnaw Marks on the Carapace Surface","authors":"V. Yanenko, O. Kovalchuk","doi":"10.15407/zoo2023.04.311","DOIUrl":"https://doi.org/10.15407/zoo2023.04.311","url":null,"abstract":"The paper describes a series of turtle remains from the Early Late Miocene of Grytsiv (Khmelnytskyi Oblast, Ukraine). This fossil assemblage was quite diverse and included representatives of four families (Emydidae, Geoemydidae, Testudinidae, and Trionychidae), most of which are described only to the family level due to incompleteness. The discovery of shell fragments, identified here as Testudo chernovi, is the earliest record of this species on the territory of Ukraine. Scratches on the nuchal of T. chernovi are interpreted as traces of gnawing or rasping and are described as a new ichnospecies, Machichnus inrosus isp. n. These traces are identified as gnawing marks of the rodent Anomalomys grytsivensis, as evidenced by the width of the lower incisors and the presence of two characteristic longitudinal ridges on their labial surface.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67088655","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}
The parasitofauna of amphibians from the province of San Juan has been studied very little. In particular, only one helminthological study has been reported on Odontophrynus occidentalis (Berg, 1896). The aim of the present study was to describe the endoparasites of O. occidentalis, including protozoa and nematodes. Twenty-one adults (13 males and 8 females) of O. occidentalis were analysed for parasites. Collected parasites were examined using standard parasitological techniques. Parasitological descriptors such as prevalence and mean intensity were calculated. Specimens belonging to the phyla Ciliophora and Nematoda were found in the intestinal tract. Protozoa of the genus Nyctotheroides and two nematode species, Aplectana hylambatis and Falcaustra sanjuanensis, were identified. This study provides new information on the new parasitic infection of amphibians for the province of San Juan. We emphasize the need to increase the knowledge of the amphibian parasitofauna, mainly related to protozoa in these vertebrates, since the literature presents few reports.
{"title":"Protozoa and Nematodes Infecting Odontophrynus occidentalis (Anura, Odontophrynidae) from the Monte Desert of Argentina","authors":"M. Piñeiro, E. Sanabria, C. González","doi":"10.15407/zoo2023.02.171","DOIUrl":"https://doi.org/10.15407/zoo2023.02.171","url":null,"abstract":"The parasitofauna of amphibians from the province of San Juan has been studied very little. In particular, only one helminthological study has been reported on Odontophrynus occidentalis (Berg, 1896). The aim of the present study was to describe the endoparasites of O. occidentalis, including protozoa and nematodes. Twenty-one adults (13 males and 8 females) of O. occidentalis were analysed for parasites. Collected parasites were examined using standard parasitological techniques. Parasitological descriptors such as prevalence and mean intensity were calculated. Specimens belonging to the phyla Ciliophora and Nematoda were found in the intestinal tract. Protozoa of the genus Nyctotheroides and two nematode species, Aplectana hylambatis and Falcaustra sanjuanensis, were identified. This study provides new information on the new parasitic infection of amphibians for the province of San Juan. We emphasize the need to increase the knowledge of the amphibian parasitofauna, mainly related to protozoa in these vertebrates, since the literature presents few reports.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67088870","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}
Total 23 species of the genus Loxoconcha and 21 species of the genus Xestoleberis were presented in this study. The results show that most species of the genus Loxoconcha consist of four adductor scars to arrange in a curved sub-vertical row and concave anteriorly, except L. pulchra carrying five, in which the top one is divided into two. The frontal scars with C-shape, opening anteriorly are presented in most of Loxoconcha species, however, the frontal scar with bean-shape or oval-shape is discovered in five species of L. japonica group. Most of L. kosugii bear the frontal scar with C-shape, but the frontal scar with Y-shape is found in several individuals. This phenemenon shows the close phylogeny between the genus Loxoconcha and Palmoconcha. About the genus Xestoleberis, chaetotaxy of setae on most appendages is a typical character of this genus, except for setae of exopodite on the maxillula. The published fossil records and the tendencies of change in the number of setae on the maxillula and mandible among three phylogenetic groups suggest that Group A or B is an ancestor of the genus Xestoleberis, and Group C is a derived group.
{"title":"Added Morphological Characteristics of Muscle Scars, Maxillula and Mandible of Two Ostracod Genera Loxoconcha (Loxoconchidae) and Xestoleberis (Xestoleberididae)","authors":"D. D. Le","doi":"10.15407/zoo2023.01.051","DOIUrl":"https://doi.org/10.15407/zoo2023.01.051","url":null,"abstract":"Total 23 species of the genus Loxoconcha and 21 species of the genus Xestoleberis were presented in this study. The results show that most species of the genus Loxoconcha consist of four adductor scars to arrange in a curved sub-vertical row and concave anteriorly, except L. pulchra carrying five, in which the top one is divided into two. The frontal scars with C-shape, opening anteriorly are presented in most of Loxoconcha species, however, the frontal scar with bean-shape or oval-shape is discovered in five species of L. japonica group. Most of L. kosugii bear the frontal scar with C-shape, but the frontal scar with Y-shape is found in several individuals. This phenemenon shows the close phylogeny between the genus Loxoconcha and Palmoconcha. About the genus Xestoleberis, chaetotaxy of setae on most appendages is a typical character of this genus, except for setae of exopodite on the maxillula. The published fossil records and the tendencies of change in the number of setae on the maxillula and mandible among three phylogenetic groups suggest that Group A or B is an ancestor of the genus Xestoleberis, and Group C is a derived group.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67088324","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}
Cetacean fossil remains attributed to Cetotheriidae are certainly not a novelty in the fossil record of the Carpathian Foreland or Foredeep, several sites being mentioned; however there remains much material in institutional collections that can still add to the number of fossiliferous localities where cetotheriids can be found. The aim of this paper is to bring to attention new material from fossiliferous localities from the western Dacian Basin (Gorj and Vâlcea Counties), from the collections of the National Geological Museum. The specimens are described, identified based on comparisons with similar specimens from published literature and a discussion about the species Cetotherium priscum is provided.
{"title":"Cetotheriidae (Cetacea: Mysticeti) from the Collections of the National Geological Museum, Bucharest (Romania)","authors":"B. Torcărescu","doi":"10.15407/zoo2023.03.267","DOIUrl":"https://doi.org/10.15407/zoo2023.03.267","url":null,"abstract":"Cetacean fossil remains attributed to Cetotheriidae are certainly not a novelty in the fossil record of the Carpathian Foreland or Foredeep, several sites being mentioned; however there remains much material in institutional collections that can still add to the number of fossiliferous localities where cetotheriids can be found. The aim of this paper is to bring to attention new material from fossiliferous localities from the western Dacian Basin (Gorj and Vâlcea Counties), from the collections of the National Geological Museum. The specimens are described, identified based on comparisons with similar specimens from published literature and a discussion about the species Cetotherium priscum is provided.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67089029","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}
V. Yevstafieva, V. Stybel, B. Gutyj, M. Leno, S. Kravchenko, N. Dmitrenko, N. Syzonenko, N. Opara
Dirofilariasis is a zoonotic disease of domestic and wild carnivores and humans. Subcutaneous migration of the parasite Dirofilaria repens Railliet & Henry, 1911 may cause local swelling with variable localisation. In humans, this parasite can cause damage to the lungs, male genitalia and eyes. The range of D. repens is constantly expanding into new areas and, considering the zoonotic potential of this parasite, it is important to extend the existing data on the morphology of D. repens. The present study provides a morphometric description of D. repens nematodes obtained from subcutaneous tissues of dogs in Ukraine. The aim of this study was to highlight the key features for the identification of parasites of this species. For males, 27 morphometric characteristics were identified, characterising the overall size of the body and the oesophagus, the thickness of the cuticle in the region of the mouth opening, the localisation of the nerve ring and the cloaca, the morphological structure and metric parameters of the spicules, and the length of the tail. For females, 18 morphometric traits were identified that, in addition to common parameters, characterize cuticle thickness in the region of the vulva, localisation of the vulva and anus, body width in the regions of the anus and vulva, and tail length. This report adds to the existing data on the morphological and metric characteristics of D. repens nematodes.
{"title":"Description of the Nematode Dirofilaria repens (Nematoda, Onchocercidae) Parasitic in Dogs in Ukraine","authors":"V. Yevstafieva, V. Stybel, B. Gutyj, M. Leno, S. Kravchenko, N. Dmitrenko, N. Syzonenko, N. Opara","doi":"10.15407/zoo2023.04.337","DOIUrl":"https://doi.org/10.15407/zoo2023.04.337","url":null,"abstract":"Dirofilariasis is a zoonotic disease of domestic and wild carnivores and humans. Subcutaneous migration of the parasite Dirofilaria repens Railliet & Henry, 1911 may cause local swelling with variable localisation. In humans, this parasite can cause damage to the lungs, male genitalia and eyes. The range of D. repens is constantly expanding into new areas and, considering the zoonotic potential of this parasite, it is important to extend the existing data on the morphology of D. repens. The present study provides a morphometric description of D. repens nematodes obtained from subcutaneous tissues of dogs in Ukraine. The aim of this study was to highlight the key features for the identification of parasites of this species. For males, 27 morphometric characteristics were identified, characterising the overall size of the body and the oesophagus, the thickness of the cuticle in the region of the mouth opening, the localisation of the nerve ring and the cloaca, the morphological structure and metric parameters of the spicules, and the length of the tail. For females, 18 morphometric traits were identified that, in addition to common parameters, characterize cuticle thickness in the region of the vulva, localisation of the vulva and anus, body width in the regions of the anus and vulva, and tail length. This report adds to the existing data on the morphological and metric characteristics of D. repens nematodes.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67089154","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}
This study provided a preliminary comparative analysis of meiobenthic assemblages in different habitats of the Snake Island Marine Protected Area (MPA). Meiobenthos was studied in three habitats: Exposed Black Sea upper infralittoral rock with Corallinales turf (MB142), Mytilid dominated exposed Black Sea upper infralittoral rock with foliose algae (no Fucales) (MB143) and Black Sea infralittoral sand and muddy sand without macroalgae (MB542). A total of 10 higher meiobenthos taxa were recorded in the different habitats: 5 permanent groups (Platyhelminthes, Nematoda, Harpacticoida (Copepoda), Ostracoda, Halacaridae) and 5 temporary groups (Oligochaeta, Polychaeta, Bivalvia, Gastropoda, Cyrripedia). The preliminary study of meiobenthos in the habitats of the Snake Island MPA showed that habitat MB143 was more favourable for meiobenthos, with the highest mean density and biomass (190655 ± 23004 ind.-m-2 and 3170.90 ± 412.15 mg-m-2, respectively). The comparative nMDS and cluster analyses based on the density of meiobenthos taxa in the Snake Island MPA showed that the meiofauna of both MB142 and MB143 differed significantly from the MB542 habitat, with Bivalvia and Ostracoda making the largest percentage contribution to these differences. The meiobenthos assemblages in the different habitats of the Snake Island MPA were similar to the other regions of the Black Sea with some unique features (e.g. relatively lower total meiobenthos density, high percentage of ostracodes on the algal substrate, etc.). Further studies on the characteristics of meiobenthos taxa assemblages in other Black Sea MPAs could lead to the estimation of meiobenthos assemblage patterns and their possible use in biomonitoring.
{"title":"Meiofaunal Biodiversity in a Marine Protected Area: a Case Study in the Rocky and Sedimentary Shores of the Snake Island (North-Western Black Sea)","authors":"O. Ye. Uzun, Y. V. Kvach","doi":"10.15407/zoo2023.05.391","DOIUrl":"https://doi.org/10.15407/zoo2023.05.391","url":null,"abstract":"This study provided a preliminary comparative analysis of meiobenthic assemblages in different habitats of the Snake Island Marine Protected Area (MPA). Meiobenthos was studied in three habitats: Exposed Black Sea upper infralittoral rock with Corallinales turf (MB142), Mytilid dominated exposed Black Sea upper infralittoral rock with foliose algae (no Fucales) (MB143) and Black Sea infralittoral sand and muddy sand without macroalgae (MB542). A total of 10 higher meiobenthos taxa were recorded in the different habitats: 5 permanent groups (Platyhelminthes, Nematoda, Harpacticoida (Copepoda), Ostracoda, Halacaridae) and 5 temporary groups (Oligochaeta, Polychaeta, Bivalvia, Gastropoda, Cyrripedia). The preliminary study of meiobenthos in the habitats of the Snake Island MPA showed that habitat MB143 was more favourable for meiobenthos, with the highest mean density and biomass (190655 ± 23004 ind.-m-2 and 3170.90 ± 412.15 mg-m-2, respectively). The comparative nMDS and cluster analyses based on the density of meiobenthos taxa in the Snake Island MPA showed that the meiofauna of both MB142 and MB143 differed significantly from the MB542 habitat, with Bivalvia and Ostracoda making the largest percentage contribution to these differences. The meiobenthos assemblages in the different habitats of the Snake Island MPA were similar to the other regions of the Black Sea with some unique features (e.g. relatively lower total meiobenthos density, high percentage of ostracodes on the algal substrate, etc.). Further studies on the characteristics of meiobenthos taxa assemblages in other Black Sea MPAs could lead to the estimation of meiobenthos assemblage patterns and their possible use in biomonitoring.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134980895","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}
Artificial wetlands are built to meet the rising human population's water needs, with little attention paid to their ecological significance. The current study was carried out to assess the importance of artificial wetlands in biodiversity conservation. Habitat quality of wetlands was assessed using the birds as an ecological indicator. Bird surveys were carried out at the five artificial wetlands located in the Ajara conservation reserve, northern Western Ghats, India. Bird surveys were conducted for five years (2011–2015). During the study, 165 bird species were recorded, including 34 wetland birds and 131 wetland-associated birds. Wetlands in forested areas have a higher richness of wetland birds. Wetlands surrounded by exotic plantations, agriculture, and human settlements exhibit lower wetland bird richness than wetlands in forested areas. Land use attributes around the wetlands affect wetland bird diversity. The current study gives a glimpse that these artificial wetlands could serve as a possible habitat for wetland birds.
{"title":"The Importance of Artificial Wetlands in the Conservation of Wetland Birds and the Impact of Land Use Attributes Around the Wetlands: a Study from the Ajara Conservation Reserve, Western Ghats, India","authors":"S. Patil, K. Choudaj","doi":"10.15407/zoo2023.01.041","DOIUrl":"https://doi.org/10.15407/zoo2023.01.041","url":null,"abstract":"Artificial wetlands are built to meet the rising human population's water needs, with little attention paid to their ecological significance. The current study was carried out to assess the importance of artificial wetlands in biodiversity conservation. Habitat quality of wetlands was assessed using the birds as an ecological indicator. Bird surveys were carried out at the five artificial wetlands located in the Ajara conservation reserve, northern Western Ghats, India. Bird surveys were conducted for five years (2011–2015). During the study, 165 bird species were recorded, including 34 wetland birds and 131 wetland-associated birds. Wetlands in forested areas have a higher richness of wetland birds. Wetlands surrounded by exotic plantations, agriculture, and human settlements exhibit lower wetland bird richness than wetlands in forested areas. Land use attributes around the wetlands affect wetland bird diversity. The current study gives a glimpse that these artificial wetlands could serve as a possible habitat for wetland birds.","PeriodicalId":36290,"journal":{"name":"Zoodiversity","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67088272","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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