کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
4550296 1627509 2009 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Social interactions can affect feeding behaviour of fish in tanks
موضوعات مرتبط
مهندسی و علوم پایه علوم زمین و سیارات اقیانوس شناسی
پیش نمایش صفحه اول مقاله
Social interactions can affect feeding behaviour of fish in tanks
چکیده انگلیسی
Fish from the same clutch of eggs, so of the same age and family, can differ substantially in size after some time in a tank as result of social interactions. On the basis of computer simulation studies I here demonstrate that it is possible to mimic this empirical observation using the rules of the standard Dynamic Energy Budget (DEB) model, supplemented with a simple stochastic module for interaction between individuals that have identical parameters. The remarkable result is that length-at-age of two individuals in a tank where the number of food particles is kept constant closely follows von Bertalanffy growth curves with very different parameters, while in reality the individuals have identical parameters. The empirical observation demonstrates that fish are close to the supply end of the supply-demand spectrum and that age-based models for growth don't apply to supply systems. The significance of the result is discussed.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Sea Research - Volume 62, Issues 2–3, August–October 2009, Pages 175-178
نویسندگان
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