Aspects of the life histories of grass rockfish, Sebastes rastrelliger, and brown rockfish, S. auriculatus, from southern California

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Love, M. S., & Johnson, K. (1999). Aspects of the life histories of grass rockfish, Sebastes rastrelliger, and brown rockfish, S. auriculatus, from southern California. Fishery Bulletin, 97(1), 100-109.
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TitleAspects of the life histories of grass rockfish, Sebastes rastrelliger, and brown rockfish, S. auriculatus, from southern California
AuthorsM. Love, K. Johnson
AbstractWe collected data on age-length and length-weight relationships, age and length at first maturity, and spawning seasons of grass rockfish, Sebastes rastrelliger, and brown rockfish, S. auriculatus, off southern California. In addition, we also collected data on fecundity of grass rockfish. For both species, males and females grew at the same rates and von Bertalanffy age-length parameters for grass rockfish were l(∞)=51.3 cm, k=0.11, t0=-2.41 and for brown rockfish l(∞)=51.4 cm, k=0.16, t0=-0.55. Male and female grass rockfish matured at about the same length and age, between 22 and 28 cm and between 2 and 5 yr. There was also little difference between the sexes for brown rockfish; they matured between 19 and 32 cm and between 3 and 6 yr. Grass rockfish spawned from January to March, peaking during January; brown rockfish spawned from January to June (and perhaps August), also peaking in January. Fecundity of grass rockfish ranged from about 80,000-760,000 eggs.
JournalFishery Bulletin
Date1999
Volume97
Issue1
Start page100
End page109
ISSN0090-0656
Subjectsage at maturity, fish, length-weight relationship, life history, spawning, Pacific Ocean, Sebastes auriculatus, Sebastes rastrelliger
NoteCited By (since 1996):10, Fish and Fisheries, CODEN: FSYBA

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