کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8496149 | 1552950 | 2009 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Modelling of Atlantic salmon (Salmo salar L.) behaviour in sea-cages: A Lagrangian approach
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کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری
علوم کشاورزی و بیولوژیک
علوم آبزیان
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Modelling of Atlantic salmon (Salmo salar L.) behaviour in sea-cages: A Lagrangian approach Modelling of Atlantic salmon (Salmo salar L.) behaviour in sea-cages: A Lagrangian approach](/preview/png/8496149.png)
چکیده انگلیسی
We constructed a Lagrangian (individual-based) model of the behaviour of Atlantic salmon in sea-cages. The behaviour of individual fish was affected by a set of environmental factors and the other individuals in the population. The model was based on behavioural parameters derived from literature and comparisons between model performance and published quantitative data sets. Simulations demonstrated that the model was able to predict the circular schooling patterns familiar to caged Atlantic salmon based on social interactions among the individuals and a motivation to keep a certain distance to the cage wall. The model accurately predicted the vertical distribution patterns of salmon over 24Â h within a sea-cage when verified against three detailed observational data sets from autumn, implying that the model closely replicated behavioural responses toward the combined effects of temperature and light. Deviations seen in the comparisons were possibly due to unmodelled features in the feeding response. Potential uses of the model include: 1) increasing understanding of how environmental factors affect fish behaviour; 2) coupling with measurements in a model-based estimator structure to accurately estimate biomasses within sea-cages; and 3) predicting the welfare status of fish in sea-cages under specific environmental conditions.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Aquaculture - Volume 288, Issues 3â4, 20 March 2009, Pages 196-204
Journal: Aquaculture - Volume 288, Issues 3â4, 20 March 2009, Pages 196-204
نویسندگان
Martin Føre, Tim Dempster, Jo Arve Alfredsen, Vegar Johansen, David Johansson,