Studies on Eurytemora最新文献

Effects of the China Coastal Current on the community structure of planktonic copepods in early spring, with notes on Eurytemora pacifica Sato, 1913 in the western Taiwan Strait 中国沿海流对台湾海峡西部早春浮游桡足类群落结构的影响——附Eurytemora pacifica Sato笔记，1913

Studies on Eurytemora Pub Date : 2021-06-08 DOI: 10.1163/9789004465565_016

引用次数: 1

Distribution of Eurytemora caspica Sukhikh & Alekseev, 2013 (Copepoda, Calanoida) in the water reservoirs of the Volga and Don river basins Sukhikh & Alekseev, 2013(桡足目，Calanoida)在伏尔加河和顿河流域水库中的分布

Studies on Eurytemora Pub Date : 2021-06-08 DOI: 10.1163/9789004465565_004

引用次数: 0

Stochastic phenotypic variation: empirical results and potential use in Eurytemora research (Copepoda, Calanoida) 随机表型变异:实证结果及其在鳗类研究中的潜在应用(桡足目、鱼形目)

Studies on Eurytemora Pub Date : 2021-06-08 DOI: 10.1163/9789004465565_008

引用次数: 0

Eurytemora affinis (Poppe, 1880) (Copepoda, Calanoida) in the Gulf of Riga, Baltic Sea — elemental composition and diurnal vertical migration 波罗的海里加湾的斑蝶(Poppe, 1880)(桡足目，卡拉诺伊目)——元素组成和日垂直迁移

Studies on Eurytemora Pub Date : 2021-06-08 DOI: 10.1163/9789004465565_014

引用次数: 0

Pseudodiaptomus japonicus Kikuchi, 1928 (Copepoda, Pseudodiaptomidae), a brackish-water copepod formerly known as P. inopinus Burckhardt, 1913, on Sakhalin Island (Russian Far East) Kikuchi Pseudodiaptomus japonicus, 1928(桡足目，Pseudodiaptomidae)，一种咸淡水桡足类，以前称为P. inopinus Burckhardt, 1913年，在库页岛(俄罗斯远东)

Studies on Eurytemora Pub Date : 2021-06-08 DOI: 10.1163/9789004465565_019

引用次数: 0

The ecological preferences of Eurytemora affinis (Poppe, 1880) in the water bodies of Kazakhstan (Central Asia) and some notes about Eurytemora caspica Sukhikh & Alekseev, 2013 哈萨克斯坦(中亚)水体中affinis Eurytemora (Poppe, 1880)的生态偏好和关于Eurytemora caspica的一些注释Sukhikh & Alekseev, 2013

Studies on Eurytemora Pub Date : 2020-06-08 DOI: 10.1163/15685403-00003967

E. Krupa

{"title":"The ecological preferences of Eurytemora affinis (Poppe, 1880) in the water bodies of Kazakhstan (Central Asia) and some notes about Eurytemora caspica Sukhikh & Alekseev, 2013","authors":"E. Krupa","doi":"10.1163/15685403-00003967","DOIUrl":"https://doi.org/10.1163/15685403-00003967","url":null,"abstract":"\u0000The purpose of this work is to analyse the influence of external factors on quantitative variables of Eurytemora affinis in water bodies of Kazakhstan. In 1997-2018, more than 150 water bodies located in various regions of the country were surveyed. The results obtained and analysis of the published literature showed that E. affinis primarily inhabits small shallow water bodies of Central and Eastern Kazakhstan. Populations from the North-Eastern Caspian Sea, originally identified as “Eurytemora affinis”, could be attributed to the recently described species Eurytemora caspica. In the water bodies examined, E. affinis was found at water temperatures from 12 to 25°C and at salinities from 0.2 to 7.1 g/dm3. The highest abundance of Eurytemora was recorded at 21-22°C and a salinity of 1.0-3.0 g/dm3. The optimum temperature range in the water bodies examined in an extreme continental climate is higher than the values given for E. affinis in water bodies in a moderately temperate climate. The optimal TDS [Total Dissolved Solids] value (1.0-3.0 g/dm3) has shifted towards more truly fresh waters than was stated for E. affinis collected from the sea (6.2-8.2), and this was confirmed in experiments (from 3.0-10.0 to 10.0-15.0). In the majority of the examined water bodies of Kazakhstan, males dominated the Eurytemora populations. Male dominance in E. affinis populations might be due to the adverse effect of elevated temperature on the lifespan of females, and it was also connected with the level of toxic pollution of the water bodies. It seems that E. affinis endures a relatively high content of heavy metals, but it does not inhabit water bodies with very high toxic pollution. The revealed features of E. affinis’ biology in Kazakhstan water bodies might be associated with both the heterogeneity of its populations from different parts of the range, and the existence of a complex of closely related species that at present is collectively named “Eurytemora affinis”.","PeriodicalId":136416,"journal":{"name":"Studies on Eurytemora","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"120950456","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}

引用次数: 2

Differential eco-physiological performances of two pseudocryptic species of the Eurytemora affinis complex (Copepoda, Calanoida) in the St. Lawrence estuarine transition zone: a reciprocal transplant experiment 在圣劳伦斯河口过渡区，两种拟隐物种(桡足目，Calanoida)的生态生理差异:互惠移植实验

Studies on Eurytemora Pub Date : 2020-06-08 DOI: 10.1163/15685403-00003973

J. Cabrol, R. Tremblay, G. Winkler

{"title":"Differential eco-physiological performances of two pseudocryptic species of the Eurytemora affinis complex (Copepoda, Calanoida) in the St. Lawrence estuarine transition zone: a reciprocal transplant experiment","authors":"J. Cabrol, R. Tremblay, G. Winkler","doi":"10.1163/15685403-00003973","DOIUrl":"https://doi.org/10.1163/15685403-00003973","url":null,"abstract":"\u0000The goal of this study was to evaluate and compare the short-term performances and the physiological plasticity of two cryptic species Eurytemora carolleeae and Eurytemora affinis (North-Atlantic clade) by simulating rapid advection from freshwater to brackish water conditions and reciprocally. To do so, two reciprocal transplant experiments without acclimation and under non-limited food condition were performed in the St. Lawrence estuarine transition zone during summer 2011. Results revealed that both species diverged in their short-term acclimation response when facing acute salinity changes that they might encounter when advected through the highly dynamic estuarine transition zone. We show that E. carolleeae could use the brackish environment without loss of performance and energy, while E. affinis needed to reallocate energy from other processes (i.e., reproduction) and required food intake to maintain itself in the freshwater environment. In addition, the transplant experiment highlighted that only 40% of the E. affinis showed short term capacity to acclimate to freshwater conditions, indicating that in situ advection by currents from brackish water to fresh water could be dramatic even for a short time period. Furthermore, the survivors of E. affinis in fresh water might not be able to reproduce, which limits establishment of a sustainable population of E. affinis (North-Atlantic clade) in the tidal freshwater part of the estuarine transition zone. Finally, we highlighted for the first time that both species of this pseudocryptic complex could use lipid remodelling to overcome temperature effects on membrane structure, but further studies are needed to determine the influence of membrane lipid remodelling on salinity tolerance.","PeriodicalId":136416,"journal":{"name":"Studies on Eurytemora","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124684275","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}

引用次数: 1

Recent distribution of Eurytemora velox (Lilljeborg, 1853) (Copepoda, Calanoida) in brackish and fresh waters of Ukraine 在乌克兰咸淡水和淡水中的Eurytemora velox (Lilljeborg, 1853)(桡足目，Calanoida)的最新分布

Studies on Eurytemora Pub Date : 2020-06-08 DOI: 10.1163/15685403-00003992

L. Samchyshyna, Yu. F. Gromova, K. Zorina-Sakharova

引用次数: 2

Salinity effects on egg production, hatching, and survival of Eurytemora affinis (Copepoda, Calanoida) 盐度对黄颡鱼产卵、孵化和存活的影响

Studies on Eurytemora Pub Date : 2020-06-08 DOI: 10.1163/15685403-00003988

Lauri Kuismanen, Louise Forsblom, J. Engström-Öst, U. Båmstedt, O. Glippa

{"title":"Salinity effects on egg production, hatching, and survival of Eurytemora affinis (Copepoda, Calanoida)","authors":"Lauri Kuismanen, Louise Forsblom, J. Engström-Öst, U. Båmstedt, O. Glippa","doi":"10.1163/15685403-00003988","DOIUrl":"https://doi.org/10.1163/15685403-00003988","url":null,"abstract":"\u0000Salinity is an important biodiversity regulating factor in the Baltic Sea, forming a physiological dispersal barrier for species. The salinity in the Baltic Sea has been predicted to decline due to increased precipitation and fewer saline water inflows from the ocean. This causes stress to species already living on the edge of their tolerances and can alter species compositions and interactions in ecosystems. Calanoid copepod resting eggs, originating from a known egg bank on the seabed in the western Gulf of Finland, were incubated in the laboratory. We monitored the hatching of the calanoid copepods Acartia sp. and Eurytemora affinis, as well as the survival to maturity of hatched Eurytemora affinis nauplii in salinities ranging from 0 to 25. Further, we also investigated salinity-related effects on body size and egg production. Based on the results of our generalized linear mixed model, peak hatching occurred within the salinity range 5-20 (6.3 at the study site). Body size was not affected by salinity and most eggs were produced in salinities of 5, 7.5 and 15. The results suggest that E. affinis lives on the edge of an optimal salinity and that a decline of salinity could affect the fitness of the local populations of the species.","PeriodicalId":136416,"journal":{"name":"Studies on Eurytemora","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129942149","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}

引用次数: 2

About the systematics of Palaearctic Eurytemora (Copepoda, Calanoida) based on morphological analysis, with focus on Eurytemora gracilicauda Akatova, 1949 基于形态分析的古北区巨齿龙(桡足目，巨齿龙目)系统学研究，以1949年的巨齿龙为研究对象

Studies on Eurytemora Pub Date : 2020-06-08 DOI: 10.1163/15685403-00003976

E. Fefilova, N. Sukhikh, E. Abramova, I. Velegzhaninov

{"title":"About the systematics of Palaearctic Eurytemora (Copepoda, Calanoida) based on morphological analysis, with focus on Eurytemora gracilicauda Akatova, 1949","authors":"E. Fefilova, N. Sukhikh, E. Abramova, I. Velegzhaninov","doi":"10.1163/15685403-00003976","DOIUrl":"https://doi.org/10.1163/15685403-00003976","url":null,"abstract":"\u0000We studied the morphology of Eurytemora from inland waters at the shores of the White and Pechora seas and from the Lena River delta, and revealed a ubiquitous presence of Eurytemora gracilicauda Akatova, which results we confirmed with genetic data. We found this species for the first time in the Pechora Sea basin. In the White Sea basin, this species was previously described as E. brodskyi Kos, with the name that we suggest is a junior synonym of E. gracilicauda. E. gracilicauda differs from the co-living species: E. lacustris (Poppe), E. arctica Wilson M. S. & Tash, and E. raboti Richard, by the structure and armament of the caudal rami and the fifth legs (P5) of males and females. The caudal rami of both males and females were elongated. The female caudal rami showed a surface covered by spines. The male caudal rami were bare, or with rare spines on the sides. The appendages of the female P5 were also elongated: the length of the inner spine on the distal exopod segment was 2.27 ± 0.12 times as long as the outer spine; the exopod of the male right P5 had a specific trigonal ledge with a short spinule, and the coxopods (both or at least one) had groups of spinules. The morphometric parameters of the females were quite stable, while those of the male showed high variability within and between populations (CV = 11.5-43.5%). Similarities and differences of E. gracilicauda and three allochoric Eurytemora species were analysed, and the results presented herein.","PeriodicalId":136416,"journal":{"name":"Studies on Eurytemora","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115520858","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}

引用次数: 3

Studies on <i>Eurytemora</i>最新文献