Autumn distribution of Bristol Bay red king crab using fishery logbooks

PloS One
Leah Sloan ZacherSarah Mincks Hardy

Abstract

Spatial distributions of fished species must be well characterized to avoid local depletions, identify critical habitat, and predict and mitigate interactions with other fisheries. The Bristol Bay red king crab (Paralithodes camtschaticus) fishery is one of the largest crab fisheries in Alaska. Summer crab distributions have been well documented by decades of bottom trawl surveys. However, crab movement and distribution are poorly understood outside the summer survey period, which creates several management challenges. One important component of fishery management is the existence of no-trawl zones, which are intended to protect crab from bottom trawl fisheries. However, it is difficult to evaluate the placement of no-trawl zones, because most crab bycatch occurs in trawl fisheries during winter when crab distributions are unknown. Daily fishing logs, kept by skippers in the red king crab fleet since 2005, contain detailed information on the spatial distribution of catch and effort of legal sized male crab during the autumn crab fishery. However, data contained in these hand-written logbooks have not been readily accessible. We digitized daily fishing logs from 2005 to 2016 and used spatial information on catch and effort to in...Continue Reading

References

May 21, 2008·Ecological Applications : a Publication of the Ecological Society of America·Franz J Mueter, Michael A Litzow
Jun 1, 2012·Ecological Applications : a Publication of the Ecological Society of America·Joshua K Abbott, Alan C Haynie
Jun 29, 2017·PloS One·Janet T Duffy-AndersonEllen C Yasumishii

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