Journal
ICES JOURNAL OF MARINE SCIENCE
Volume 65, Issue 1, Pages 72-80Publisher
OXFORD UNIV PRESS
DOI: 10.1093/icesjms/fsm170
Keywords
age estimation; anglerfish; growth; illicia; Lophius piscatorius; otoliths; tagging
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Growth of white anglerfish was estimated from the results of a tagging study in south European waters. In all, 1326 fish, caught by bottom trawl and gillnet commercial vessels and on trawl surveys, were tagged from 1995 to 2004; 50 were recovered, and a growth rate of 13.6 cm year(-1) was estimated from the four fish at liberty long enough to allow extrapolation of the growth rate to an annual period. Growth patterns were reviewed based on available studies of growth verification of white anglerfish in Atlantic waters, including another tag-recapture study, length-frequency of catches, and microstructure analysis of hard parts. The growth rate estimated from these studies showed many similarities, and an overall growth pattern was estimated: growth rate = 18.24e(-0.01Slength). A von Bertalanffy growth curve fitted to all data yielded the parameter values L-infinity = 140 cm and k = 0.11. This growth rate is faster than estimated recently using illicia for age estimation, but similar to that found in the first studies that used illicia and sectioned otoliths. Current estimates of growth based on illicia, which are used in assessing the northern European stock of white anglerfish, seem to be underestimated.
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