Influence Of Size, Age, And Spawning Season On Sex Change In Black Sea Bass

Provost, M. M.; Jensen, O. P.; Berlinsky, D. L.

doi:10.1080/19425120.2016.1274696

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Influence Of Size, Age, And Spawning Season On Sex Change In Black Sea Bass

2017
By Provost, M. M. ; Jensen, O. P. ; Berlinsky, D. L.
Source: Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science 9(1), 126–138

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Details:

Journal Title:

Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science
Personal Author:

Provost, M. M. ; Jensen, O. P. ; Berlinsky, D. L.

Provost, M. M. ; Jensen, O. P. ; Berlinsky, D. L. Less -
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; Sea Grant ; OAR (Oceanic and Atmospheric Research)

NMFS (National Marine Fisheries Service) ; Sea Grant ; OAR (Oceanic and Atmospheric Research) Less -
Sea Grant Program:

NJSGC/NJMSC (New Jersey Sea Grant Consortium)
Description:

A tagging study was conducted off the New Jersey coast to study sex change in Black Sea Bass Centropristis striata as a function of size, age, and spawning season. Throughout 2011–2013, 3,670 fish were measured and 1,498 were tagged from research, charter, and commercial fishing vessels. Of the tagged fish, 437 were recaptured. Size at 50% probability of sex change was 355 mm TL; the proportion of female fish in sexual transition increased with body size from 0.5% at 175–225 mm to 15.7% at 375–425 mm and increased with age from 0.6% at 3 years old to 18.2% at 6 years old. Relatively few females (8 of 107) changed sex during the spawning season, but a larger proportion (8 of 22 females) transitioned between spawning seasons. The proportion of females with transitional gonads was lowest at the start of the spawning season in June (0.2%), slowly increased over the summer, and sharply peaked just after the spawning season in October (9.5%). In addition, a high proportion of young mature fish were male (40% at age 2), which may indicate the presence of primary males. This is the first tagging study to estimate sex change as a function of size, age, and season in a protogynous hermaphroditic fish species. Use of tagging avoids potential problems that are associated with inferring sex change rates from sex ratios based on catch data.
Keywords:

[+]

Black Sea Bass Research Sex Differences Spawning NOAA Mid-Atlantic Research Set-Aside Program
Source:

Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science 9(1), 126–138
DOI:

https://doi.org/10.1080/19425120.2016.1274696
Document Type:

Journal Article
Place as Subject:

Atlantic Coast (N.J.) ; United States

Atlantic Coast (N.J.) ; United States Less -
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

[+]

urn:sha256:d39d77ecac95051529c84b7003342109d6e7e18c668646eaa15bd438d7ef2356
Download URL:

https://repository.library.noaa.gov/view/noaa/24647/noaa_24647_DS1.pdf
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Influence Of Size, Age, And Spawning Season On Sex Change In Black Sea Bass

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