Age and Growth of Quillback Rockfish (<i>Sebastes maliger</i>) at High Latitude

Data on age and growth of fishes is critical for effective management; however, growth rates documented in one location may not be representative of other locations, especially for species that occur across wide geographic ranges. <i>Sebastes maliger</i>, quillback rockfish, occur across...

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Bibliographic Details
Main Authors: Camron J. Christoffersen, Dennis K. Shiozawa, Andrew D. Suchomel, Mark C. Belk
Format: Article
Language:English
Published: MDPI AG 2022-02-01
Series:Fishes
Subjects:
Online Access:https://www.mdpi.com/2410-3888/7/1/38
Description
Summary:Data on age and growth of fishes is critical for effective management; however, growth rates documented in one location may not be representative of other locations, especially for species that occur across wide geographic ranges. <i>Sebastes maliger</i>, quillback rockfish, occur across a broad latitudinal range, but their growth patterns have been quantified only in the southern part of their range. To provide information for <i>S. maliger</i> in the more northern part of its range, we report age and growth patterns derived from otolith analysis from a population collected in southeast Alaskan waters. In southeast Alaska mean annual growth increments for years 1 and 2 range from 60–80 mm, and for ages 6–9 annual growth increments average about 20 mm. From age 10 on average the annual growth increment is about 5 mm. These data can be used in conjunction with harvest data to manage stocks of <i>S. maliger</i> in Alaskan waters.
ISSN:2410-3888