scholarly journals Bioconcentration of Organotin Cations during Molting Inhibits Heterocypris incongruens Growth

2020 ◽  
Vol 54 (22) ◽  
pp. 14288-14301
Author(s):  
Tom M. Nolte ◽  
Ward De Cooman ◽  
Jos P. M. Vink ◽  
Raf Elst ◽  
Els Ryken ◽  
...  
Keyword(s):  
Heterocypris Incongruens

Feeding behaviour of larval Ambystoma mexicanum

2011 ◽  
Vol 32 (4) ◽  
pp. 509-517 ◽  
Author(s):  
Diego de Jesus Chaparro-Herrera ◽  
S. Nandini ◽  
S.S.S. Sarma ◽  
Luis Zambrano
Keyword(s):  
Prey Species ◽  
Fish Larvae ◽  
Natural Habitat ◽  
Ambystoma Mexicanum ◽  
Larval Stages ◽  
Conservation Effort ◽  
Consistent Increase ◽  
Zooplankton Consumption ◽  
Oviparous Fish ◽  
Heterocypris Incongruens

Abstract The Axolotl, Ambystoma mexicanum, endemic to the freshwater lakes, Xochimilco and Chalco in Mexico City, feeds on zooplankton during its larval stages. We evaluated the functional response over eight weeks of A. mexicanum fed different prey items found in its natural habitat (rotifers: Brachionus havanaensis, B. calyciflorus, B. rubens and Plationus patulus; cladocerans: Moina macrocopa, Macrothrix triserialis, Alona glabra and Simocephalus vetulus; and ostracods: Heterocypris incongruens). Zooplankton consumption by A. mexicanum varied in relation to the prey species and age of the larvae. Unlike oviparous fish larvae which often feed preferentially on rotifers in the first few weeks, A. mexicanum larvae fed more on cladocerans and ostracods. Among the cladocerans offered, larval A. mexicanum consumed higher numbers of M. triserialis and M. macrocopa. Feeding on the largest cladoceran tested, S. vetulus, increased after the fifth week. There was a consistent increase in the number of ostracods Heterocypris incongruens, consumed with age, from 4 to 169 prey per larva over eight weeks. The results are discussed with relation to the importance of zooplankton diet in conservation effort of this endangered species in Lake Xochimilco.

scholarly journals Demographic responses of Heterocypris incongruens (Ostracoda) related to stress factors of competition, predation and food

2016 ◽  
Vol 75 (s1) ◽  
Author(s):  
Rocio Fernandez ◽  
Sarma Nandini ◽  
S.S.S. Nandini ◽  
Maria E. Castellanos-Páez
Keyword(s):  
Life Expectancy ◽  
Population Growth ◽  
Reproductive Output ◽  
Cichlid Fish ◽  
Poor Quality ◽  
Stress Factors ◽  
Temporary Ponds ◽  
Crustacean Species ◽  
Heterocypris Incongruens ◽  
Demographic Responses

<em>Heterocypris incongruens</em> is a widely distributed ostracod which can maintain its populations under stressful conditions such as those in temporary ponds and under low-quality diets, for example, detritus. It often co-occurs with cladocerans and fish living in shallow water bodies. Nevertheless, little is known about its response to the presence of predators, its consumption capacity of cyanobacteria typically present in eutrophic systems, and its interaction with other species in similar habits. We studied here the demographic responses of <em>H. incongruens</em> fed the green alga <em>Scenedesmus</em> <em>acutus</em>, two strains of <em>Microcystis </em>cf. <em>aeruginosa</em> and <em>Limnothrix</em> sp. Experiments were conducted separately and together in the presence of the cladoceran <em>Simocephalus vetulus </em>and the cichlid fish, <em>Oreochromis</em> kairomones. The ostracod maintained growth in all treatments, the reproductive output decreased on dietary <em>Limnothrix </em>sp., and its life expectancy was significantly lower with the toxic strain of <em>Microcystis</em>. The coexistence of both crustacean species increased the rate of population growth (~ 0.33 day<sup>-1</sup>) of <em>S. vetulus</em> and life expectancy (36-44 days) of <em>H. incongruens</em> on the test diets compared with controls (23-33 days). Our study suggests facilitation affects the interaction between the two microcrustaceans, especially on poor quality cyanobacterial diets.

scholarly journals Effect of diclofenac and naproxen and their mixture on spring barley seedlings and Heterocypris incongruens

2021 ◽  
pp. 103746
Author(s):  
Barbara Pawłowska ◽  
Arkadiusz Telesiński ◽  
Robert Biczak
Keyword(s):  
Spring Barley ◽  
Heterocypris Incongruens

DESCRIPTION OF SOME MENDELIAN-INHERITED RAPD MARKERS FOR HETEROCYPRIS INCONGRUENS (OSTRACODA)

2001 ◽  
Vol 21 (4) ◽  
pp. 982-990 ◽  
Author(s):  
Andrea Gandolfi ◽  
Valeria Rossi ◽  
Paolo Menozzi
Keyword(s):  
Rapd Markers ◽  
Heterocypris Incongruens

scholarly journals The sediment-contact test using the ostracod Heterocypris incongruens: Effect of fine sediments and determination of toxicity thresholds

Chemosphere ◽  
2016 ◽  
Vol 151 ◽  
pp. 220-224 ◽  
Author(s):  
M. Carmen Casado-Martinez ◽  
Karen F. Burga-Pérez ◽  
Rebecca Bebon ◽  
Jean-François Férard ◽  
Etienne L.M. Vermeirssen ◽  
...  
Keyword(s):  
Contact Test ◽  
Fine Sediments ◽  
Sediment Contact Test ◽  
Heterocypris Incongruens

scholarly journals Synthesis, Spectral Characterization of Several Novel Pyrene-Derived Aminophosphonates and Their Ecotoxicological Evaluation Using Heterocypris incongruens and Vibrio fisheri Tests

Molecules ◽  
2016 ◽  
Vol 21 (7) ◽  
pp. 936 ◽  
Author(s):  
Jarosław Lewkowski ◽  
Maria Rodriguez Moya ◽  
Marta Chmielak ◽  
Diana Rogacz ◽  
Kamila Lewicka ◽  
...  
Keyword(s):  
Spectral Characterization ◽  
Ecotoxicological Evaluation ◽  
Heterocypris Incongruens

scholarly journals Description of Some Mendelian-Inherited Rapd Markers for Heterocypris Incongruens (Ostracoda)

2001 ◽  
Vol 21 (4) ◽  
pp. 982-990 ◽  
Author(s):  
Andrea Gandolfi ◽  
Paolo Menozzi ◽  
Valeria Rossi
Keyword(s):  
Rapd Markers ◽  
Heterocypris Incongruens
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