Interspecific Relations between Marine Rotifer <i>Brachionus rotundiformis</i> and Zooplankton Species Contaminating in the Rotifer Mass Culture Tank
نویسندگان
چکیده
منابع مشابه
Resource competition between sympatric sibling rotifer species
Mechanisms underlying competitive interactions are important in understanding the structure of planktonic communities, particularly the coexistence of similar species. Here we present experimental results of exploitative competition among three sympatric sibling species of the Brachionus plicatilis complex for two differently-sized species of food microalgae. These three rotifer species are to ...
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Despite their high morphological similarity, cryptic species often coexist in aquatic habitats presenting a challenge in the framework of niche differentiation theory and coexistence mechanisms. Here we use a rotifer species complex inhabiting highly unpredictable and fluctuating salt lakes to gain insights into the mechanisms involved in stable coexistence in cryptic species. We combined molec...
متن کاملMass culture of the rotifer Brachionus plicatilis and its evaluation as a food for larval anchovies
Growth rates of anchovy larvae, Engraulis mordax, reared for 19 days under constant environmental conditions on a diet of laboratory-cultured organisms, exceeded the growth rates of anchovies fed on a diet of wild plankton. The rotifer Brachionus plicatilis was found to be a nutritious food source when fed to the larvae in concentrations of 10 to 20/ml and in combination with the dinoflagellate...
متن کاملThe Flame Cell of Rotifer
The protonephridial systems of a number of metazoa consist, in part, of flame cells or flame bulbs which are specialized structures attached to paired collecting tubules. In rotifers, each tubule is said to bear two to eight (1) or more (2) flame bulbs. These structures are located in the pseu-docoelomic cavity and are believed to function in the control of osmotic pressure and, possibly, in th...
متن کاملMorphological Similarity and Ecological Overlap in Two Rotifer Species
Co-occurrence of cryptic species raises theoretically relevant questions regarding their coexistence and ecological similarity. Given their great morphological similitude and close phylogenetic relationship (i.e., niche retention), these species will have similar ecological requirements and are expected to have strong competitive interactions. This raises the problem of finding the mechanisms t...
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ژورنال
عنوان ژورنال: Fisheries science
سال: 1995
ISSN: 0919-9268
DOI: 10.2331/fishsci.61.623