Different maturity scales affect estimations of fecundity, TEP and spawning stock size of Greenland halibut, Reinhardtius hippoglossoides (Walbaum, 1792)
作者： Lara Agulló Núñez , Elvar H. Hallfredsson , Inger-Britt Falk-Petersen
DOI: 10.1080/17451000.2015.1031797
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摘要: AbstractBased on 138 samples from female Northeast Arctic Greenland halibut (Reinhardtius hippoglossoides) taken in November–December 2011 at spawning grounds the continental slope of Barents Sea, relationships between fecundity and fish size were established found to be same range as those estimates 1996, 1997 1998. Ovarian maturity stages determined by using a scale proposed Kennedy et al. based microscopic oocyte diameter measurements. These data compared sea routine manner, standard macroscopic previously developed for halibut. Maturity ogives derived three different scales an overestimation both stock total egg production (TEP) approximately 20% was when used conventional way determine ogives. Most accurate are assumed ...
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