Refuge availability and sequence of predators determine the seasonal succession of crustacean zooplankton in a clay-turbid lake

2008 ◽  
Vol 43 (1) ◽  
pp. 91-103 ◽  
Author(s):  
Jukka Horppila ◽  
Pertti Eloranta ◽  
Anne Liljendahl-Nurminen ◽  
Juha Niemistö ◽  
Zeynep Pekcan-Hekim
Keyword(s):  
Seasonal Succession ◽  
Crustacean Zooplankton ◽  
Turbid Lake

scholarly journals Retraction: Shah JA, Pandit AK. Seasonal succession of crustacean zooplankton in Wular lake of the Kashmir Himalaya. Arch biol sci. 2013;65(3):1063-8. DOI:10.2298/ABS1303063B

2015 ◽  
Vol 67 (4) ◽  
pp. 1433-1433
Author(s):  
E Editorial
Keyword(s):  
Biological Sciences ◽  
Seasonal Succession ◽  
Crustacean Zooplankton ◽  
Kashmir Himalaya ◽  
Physico Chemical ◽  
Wular Lake ◽  
Retracted Article ◽  
Cladoceran Zooplankton ◽  
Published Paper ◽  
Font Color

This is a notice of retraction of the article: Seasonal succession of crustacean zooplankton in Wular lake of the Kashmir Himalaya, published in the Archives of Biological Sciences in 2013, Vol. 65, Issue 3. The Editor-in-Chief has been informed of different degrees of scholarly misconduct in figures and tables presented in this article. After inspection, the following issues were revealed: 1) Table 2 contains a subset of the results described in Table 2 in previously published papers, respectively: I. Shah J A, Pandit A K. Relation between physico-chemical limnology and crustacean community in Wular Lake of Kashmir Himalaya. Pak J Biol Sci. 2013;16(19):976-83. DOI:10.3923/pjbs.2013.976.983 II. Shah J A, Pandit A K. Diversity and Abundance of Cladoceran Zooplankton in Wular Lake, Kashmir Himalaya. Res J Environ Earth Sci. 2013;5(7):410-7. e-ISSN: 2041-0492 III. Shah J A, Pandit A K, Shah M. Distribution, diversity and abundance of copepod zooplankton of Wular Lake, Kashmir Himalaya. J Ecol Nat Environ. 2013;5(2):24-9. DOI:10.5897/JENE12.100 2) Tables 2 and 3 are examples of duplication of data presented in the previously published paper: Shah J A, Pandit A K. Relation between physico-chemical limnology and crustacean community in Wular Lake of Kashmir Himalaya. Pak J Biol Sci. 2013;16(19):976-83. DOI:10.3923/pjbs.2013.976.983 3) Table 3 is a rearranged presentation of a subset of data presented in Table 2 of the previously published paper: Shah J A, Pandit A K. Diversity and abundance of cladoceran zooplankton in Wular Lake, Kashmir Himalaya. Res J Environ Earth Sci. 2013;5(7):410-7. e-ISSN: 2041-0492 After confirmation of these claims, the Editor-in-Chief of the Archives of Biological Sciences has decided to retract the paper immediately. <br><br><font color="red"><b> Link to the retracted article <u><a href="http://dx.doi.org/10.2298/ABS1303063B">10.2298/ABS1303063B</a></b></u>

EVLUETION OF DIETARY UTILIZATION OF BLOOM-FORMING CYANOBACTERIA BY SMALL-BODIED CRUSTACEAN ZOOPLANKTON USING FATTY ACID ANALYSIS

2019 ◽  
Vol 75 (7) ◽  
pp. III_367-III_374
Author(s):  
Souta AOMORI ◽  
Megumu FUJIABAYASHI ◽  
Kunihiro OKANO ◽  
Yoshihiro TAKADA ◽  
Naoyuki MIYATA
Keyword(s):  
Fatty Acid ◽  
Fatty Acid Analysis ◽  
Crustacean Zooplankton

scholarly journals Seasonal Succession of Bacterial Communities in Three Eutrophic Freshwater Lakes

2021 ◽  
Vol 18 (13) ◽  
pp. 6950
Author(s):  
Bin Ji ◽  
Cheng Liu ◽  
Jiechao Liang ◽  
Jian Wang
Keyword(s):  
Water Quality ◽  
Surface Water ◽  
Water Temperature ◽  
Bacterial Communities ◽  
Seasonal Succession ◽  
Lake Eutrophication ◽  
Urban Lake ◽  
Freshwater Lakes ◽  
Functional Prediction ◽  
Bacterial Indicator

Urban freshwater lakes play an indispensable role in maintaining the urban environment and are suffering great threats of eutrophication. Until now, little has been known about the seasonal bacterial communities of the surface water of adjacent freshwater urban lakes. This study reported the bacterial communities of three adjacent freshwater lakes (i.e., Tangxun Lake, Yezhi Lake and Nan Lake) during the alternation of seasons. Nan Lake had the best water quality among the three lakes as reflected by the bacterial eutrophic index (BEI), bacterial indicator (Luteolibacter) and functional prediction analysis. It was found that Alphaproteobacteria had the lowest abundance in summer and the highest abundance in winter. Bacteroidetes had the lowest abundance in winter, while Planctomycetes had the highest abundance in summer. N/P ratio appeared to have some relationships with eutrophication. Tangxun Lake and Nan Lake with higher average N/P ratios (e.g., N/P = 20) tended to have a higher BEI in summer at a water temperature of 27 °C, while Yezhi Lake with a relatively lower average N/P ratio (e.g., N/P = 14) tended to have a higher BEI in spring and autumn at a water temperature of 9–20 °C. BEI and water temperature were identified as the key parameters in determining the bacterial communities of lake water. Phosphorus seemed to have slightly more impact on the bacterial communities than nitrogen. It is expected that this study will help to gain more knowledge on urban lake eutrophication.

Changes in the crustacean communities of Lakes Michigan, Huron, and Erie following the invasion of the predatory cladoceran Bythotrephes longimanus

2004 ◽  
Vol 61 (11) ◽  
pp. 2111-2125 ◽  
Author(s):  
Richard P Barbiero ◽  
Marc L Tuchman
Keyword(s):  
Zooplankton Community ◽  
Crustacean Zooplankton ◽  
Bythotrephes Longimanus ◽  
Zooplankton Community Structure ◽  
Cladoceran Species ◽  
Invertebrate Predators ◽  
Predatory Cladoceran ◽  
Leptodora Kindti ◽  
Escape Responses ◽  
Zooplankton Communities

The crustacean zooplankton communities in Lakes Michigan and Huron and the central and eastern basins of Lake Erie have shown substantial, persistent changes since the invasion of the predatory cladoceran Bythotrephes in the mid-1980s. A number of cladoceran species have declined dramatically since the invasion, including Eubosmina coregoni, Holopedium gibberum, Daphnia retrocurva, Daphnia pulicaria, and Leptodora kindti, and overall species richness has decreased as a result. Copepods have been relatively unaffected, with the notable exception of Meso cyclops edax, which has virtually disappeared from the lakes. These species shifts have for the most part been consistent and equally pronounced across all three lakes. Responses of crustacean species to the Bythotrephes invasion do not appear to be solely a consequence of size, and it is likely that other factors, e.g., morphology, vertical distribution, or escape responses, are important determinants of vulnerability to predation. Our results indicate that invertebrate predators in general, and invasive ones in particular, can have pronounced, lasting effects on zooplankton community structure.

Cadmium concentrations of crustacean zooplankton of acidified and nonacidified Canadian Shield lakes

1990 ◽  
Vol 24 (9) ◽  
pp. 1367-1372 ◽  
Author(s):  
Norman D. Yan ◽  
Gerald L. Mackie ◽  
Peter J. Dillon
Keyword(s):  
Canadian Shield ◽  
Crustacean Zooplankton ◽  
Shield Lakes

Seasonal and growth stage changes in lipid and fatty acid composition in the multigeneration copepod Drepanopus pectinatus from Iles Kerguelen

2010 ◽  
Vol 23 (1) ◽  
pp. 3-17 ◽  
Author(s):  
P. Mayzaud ◽  
S. Lacombre ◽  
M. Boutoute
Keyword(s):  
Fatty Acid Composition ◽  
Fatty Acid ◽  
Acid Composition ◽  
Lipid Content ◽  
Membrane Lipids ◽  
Essential Fatty Acids ◽  
Food Limitation ◽  
Seasonal Succession ◽  
Wax Esters ◽  
Adult Individual

AbstractChanges in adult weight, lipid and fatty acid composition per lipid class were studied over a complete seasonal cycle in Drepanopus pectinatus Brady. This copepod displayed a strong seasonality in adult individual weight and total lipid content. Stages C3 to adult from a summer cohort were compared in terms of lipid and fatty acid structure. Changes in lipid content were related to wax esters and polar lipids (PL) while triacylglycerols (TAG) and cholesterol remained minor constituents except at the end of winter. Changes in fatty acid composition of different lipid classes showed that food limitation in winter was high enough to affect 22:6n-3 (DHA) content in PL, and provoke accumulation of maximal percentages of bacterial marker as branched acids. Composition of TAG followed closely the changes in trophic interactions as diatom and flagellate markers dominated in spring and summer while bacterial and detritus particle markers dominated in late winter. The composition of wax esters followed the same seasonal succession but with a lower level of turn over time and shifted characteristics (bacterial markers) from winter to spring individuals when compared to TAG. Ontogenetic changes showed high triacylglycerols content in younger C3 stages and increasing wax esters with increasing developmental stages. Fatty acid composition of PL showed low percentages of EPA and DHA in stage C3, and recovery of high levels of DHA for stage C4 or 20:5n-3 (EPA) at stage C5. The same trend was observed for 18:4n-3. The reverse pattern was noted for the n-6 polyunsaturated acids (PUFA) suggesting a greater requirement in younger stages. Fatty acid partitioning between neutral and PL suggested essential fatty acids selective incorporation from neutral classes into membrane lipids.

A biophysical model of the interaction between vertical migration of crustacean zooplankton and circulation in the Lower St. Lawrence Estuary

1999 ◽  
Vol 56 (12) ◽  
pp. 2420-2432 ◽  
Author(s):  
Bruno A Zakardjian ◽  
Jeffrey A Runge ◽  
Stephane Plourde ◽  
Yves Gratton
Keyword(s):  
Population Dynamics ◽  
Vertical Migration ◽  
Horizontal Distribution ◽  
Calanus Finmarchicus ◽  
Biophysical Model ◽  
Crustacean Zooplankton ◽  
Simple Formulation ◽  
Lawrence Estuary ◽  
Circulation Patterns ◽  
St Lawrence Estuary

As an essential step in modeling the influence of circulation on the population dynamics of marine planktonic copepods, we define a simple formulation of swimming behavior that can be used in both Eulerian and Lagrangian models. This formulation forces aggregation of the population toward a preferential depth and can be stage specific and time varying, thus allowing description of either diurnal or seasonal vertical migration. We use the formulation to examine the interaction between the circulation and vertical distribution in controlling horizontal distribution of the common planktonic copepod Calanus finmarchicus in the Lower St. Lawrence Estuary, Canada. We first introduce diel migration into a simple one-dimensional model and then into a model of residual two-dimensional circulation patterns representative of conditions encountered in the Lower St. Lawrence Estuary. Results from the latter indicate that interactions between circulation and stage-specific swimming behaviors are the main mechanisms for aggregation of planktonic crustaceans at the head of the Laurentian Channel and highlight the implications of flushing of the surface-dwelling young stages for the population dynamics of C. finmarchicus in the Lower St. Lawrence Estuary.

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