Author : Quinn T. Smith
Publisher :
ISBN 13 :
Total Pages : 147 pages
Book Rating : 4.:/5 (125 download)
Book Synopsis Southeast Alaska Pot Shrimp Stock Status Prior to the 2019/20 Season by : Quinn T. Smith
Download or read book Southeast Alaska Pot Shrimp Stock Status Prior to the 2019/20 Season written by Quinn T. Smith and published by . This book was released on 2020 with total page 147 pages. Available in PDF, EPUB and Kindle. Book excerpt: Spot shrimp, Pandalus platyceros, and to a lesser extent coonstripe shrimp, Pandalus hysinotis, are targeted by a pot fishery in Southeast Alaska. Spot shrimp are protandric hermaphrodites with narrow temperature and hard bottom habitat requirements and there is little Alaska-specific life history information. A fixed quota harvest strategy is employed to manage the fishery; data are reviewed annually to determine stock status and guideline harvest levels (GHLs) are set within a guideline harvest range (GHR) and targeted inseason. The upper limits of GHRs were originally set based on historical harvest levels but have since been adjusted. Management is supported by a stock assessment program which includes fishery-independent pot surveys in five of 22 management areas, accounting for 57% of the 10-year average annual harvest; commercial catch sampling and logbooks; and commercial catch and effort data. Data on catch rate (survey, logbook and commercial), shrimp size, the size at which 50% are female (L50) and estimates of harvest rate are analyzed annually. Data from the most current season are compared to established baselines and scored to designate a stock status of “good”, “above average”, “moderate”, “below average”, or “poor”. For the 21 management areas in Southeast, stock status was poor in two, below average in three, moderate in eleven, above average in four, and good in one. The ‘Remainder of District 12’management area was closed for the 2018/19 season, so no stock statuses were calculated.