Discovering where bluefin tuna, Thunnus thynnus, might go: using environmental and fishery data to map potential tuna habitat in the eastern Mediterranean Sea
Based on a dataset derived from commercial fisheries in the eastern Mediterranean Sea in 1998-2005, we applied generalized additive models (GAMs) to investigate the relative influence of a range of environmental factors on catch rates of Atlantic bluefin tuna (Thunnus thynnus Linnaeus, 1785). GAM analyses were conducted by separately modelling (1) the probability of making a catch (encountering a school), and (2) the positive catch rates (school size). Results suggested intra-annual variations in tuna distribution and revealed interesting associations with some environmental features, lunar periodicity being the most distinctive one... (+++)
DAMALAS Dimitrios;
MEGALOFONOU Persefoni;
2012-12-13
INST CIENCIAS MAR BARCELONA
JRC69587
0214-8358,
http://www.icm.csic.es/scimar/index.php/secId/6/IdArt/4153/,
https://publications.jrc.ec.europa.eu/repository/handle/JRC69587,
10.3989/scimar.03679.26A,
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