Corroboration of faster annual growth rate of black anglerfish (Lophius budegassa) in Spanish Mediterranean based on length frequency analysis
Date
2014-10-24Type
posterKeywords
black anglerfishLophius budegassa
Mediterranean Sea
growth
length frequency analysis
age corroboration
Abstract
The illicium (first dorsal fin ray) has become the standard structure for age estimation of black
anglerfish (Lophius budegassa) in most of the European countries and the one used as a basis for
stock assessment, after calibration exchanges among the age readers and workshops. However, the
tendency in the past to not pay essential attention to the need to validate or corroborate the age
estimation in some stocks has led to misunderstanding of their dynamics. Thus, the Atlantic black
anglerfish stocks have not been annually assessed using age-structured models during the last years
in ICES working groups due to problems with the data quality, including those coming from a biased
illicia age estimation criterion. The same age estimation criterion is used for the Mediterranean
black anglerfish. Evidence obtained in the last years, using alternative methodologies to the age
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estimation, have shown a faster growth rate of black anglerfish. Some growth increments
considered as ...
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