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Mathematical models of gastric emptying and the estimation of daily rates of food consumption for fish
Author(s) -
Jobling M.
Publication year - 1981
Publication title -
journal of fish biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.672
H-Index - 115
eISSN - 1095-8649
pISSN - 0022-1112
DOI - 10.1111/j.1095-8649.1981.tb05829.x
Subject(s) - gastric emptying , biology , food consumption , fish <actinopterygii> , consumption (sociology) , food intake , estimation , fishery , stomach , endocrinology , biochemistry , social science , sociology , agricultural economics , economics , management
The literature relating to gastric evacuation in fishes is reviewed and, where appropriate, the data is re‐analysed and fitted to mathematical models of gastric emptying. A volume dependent model of emptying is suggested as being most appropriate and data for most species are adequately described by an equation of the form d V /d T = ‐ c V 0.5 . The gastric emptying equations are then incorporated into models for the estimation of daily food consumption of fishes and the accuracy of the predictions tested.