American plaice Hippoglossoides platessoides
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چکیده
Bluegill Lepomis macrochirus Maturation at younger age and lower condition (lakes in Minnesota: Drake et al., 1997; source: Istockphoto). Atlantic silverside Menidia menidia Reduced growth rate; decrease in fecundity, egg volume, larval size at hatching, larval growth rate, larval survival, consumption, growth efficiency, food conversion efficiency, willingness to forage under threat of predation, and number of vertebrae (experimental tank populations: Conover and Munch, 2002; Walsh et al., 2006; source: Fisheries and Oceans Canada). Brook trout Salvelinus fontinalis Maturation at younger age, smaller size, and lower condition (lakes in Canada: Magnan et al., 2005; source: US Fish and Wildlife Service).
منابع مشابه
Maturation of Newfoundland American plaice (Hippoglossoides platessoides): long-term trends in maturation reaction norms despite low fishing mortality?
To interpret long-term trends in age and size at maturation, new statistical methods have recently been devised for estimating probabilistic maturation reaction norms based on data collected for the management of fisheries. Here we apply these methods to three Newfoundland stocks of American plaice (NAFO Divisions 2J3K, 3LNO, 3Ps) and report a clear long-term shift in the maturation reaction no...
متن کاملBody weight and the haematology of the american plaice Hippoglossoides platessoides.
The relationship between haematological variables and body weight (W) is studied in the American plaice. Haematocrit, haemoglobin concentration, and cell volume and numbers are directly correlated with W, indicating that small fish have low blood oxygen solubility (alphaBO2) in spite of a high weight specific oxygen consumption (VO2/W). Examination of analytical models of the branchial apparatu...
متن کاملDoes increased information about reproductive potential result in better prediction of recruitment?
The relationship between stock size and recruitment is an essential element in the understanding of the productivity of a population. However, predicting the number of recruits produced by a population has proven to be a difficult challenge. This may in part be a result of poor estimation of reproductive potential (RP). We determined if including increased information on reproductive biology in...
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This study presents a new description, based on histopathological and ultrastructural studies, of a disease affecting the common dab Limanda limanda (L.). The condition can be recognised by the presence of multiple orange or yellow lesions in the pterygophorial region of the fish. The principal histopathological features are necrosis of fat cells, extensive macrophage infiltration leading to th...
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