Relationships between Larval and Juvenile Abundance of Winter-Spawned Fishes in North Carolina, USA

Taylor, J. Christopher and Mitchell, Warren A. and Buckel, Jeffrey A. and Walsh, Harvey J. and Shertzer, Kyle W. and Martin, Gretchen Bath and Hare, Jonathan A. (2009) Relationships between Larval and Juvenile Abundance of Winter-Spawned Fishes in North Carolina, USA. Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science, 1(1), pp. 12-21. DOI: 10.1577/C08-015.1

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Abstract

We analyzed the relationships between the larval and juvenile abundances of selected estuarine-dependent fishes that spawn during the winter in continental shelf waters of the U.S. Atlantic coast. Six species were included in the analysis based on their ecological and economic importance and relative abundance in available surveys: spot Leiostomus xanthurus, pinfish Lagodon rhomboides, southern flounder Paralichthys lethostigma, summer flounder Paralichthys dentatus, Atlantic croaker Micropogonias undulatus, and Atlantic menhaden Brevoortia tyrannus. Cross-correlation analysis was used to examine the relationships between the larval and juvenile abundances within species. Tests of synchrony across species were used to find similarities in recruitment dynamics for species with similar winter shelf-spawning life-history strategies. Positive correlations were found between the larval and juvenile abundances for three of the six selected species (spot, pinfish, and southern flounder). These three species have similar geographic ranges that primarily lie south of Cape Hatteras. There were no significant correlations between the larval and juvenile abundances for the other three species (summer flounder, Atlantic croaker, and Atlantic menhaden); we suggest several factors that could account for the lack of a relationship. Synchrony was found among the three southern species within both the larval and juvenile abundance time series. These results provide support for using larval ingress measures as indices of abundance for these and other species with similar geographic ranges and winter shelf-spawning life-history strategies.

Item Type: Article
Title: Relationships between Larval and Juvenile Abundance of Winter-Spawned Fishes in North Carolina, USA
Personal Creator/Author:
CreatorsEmail
Taylor, J. ChristopherChristopher.Taylor@noaa.gov
Mitchell, Warren A.
Buckel, Jeffrey A.
Walsh, Harvey J.
Shertzer, Kyle W.
Martin, Gretchen Bath
Hare, Jonathan A.
Journal or Publication Title: Marine and Coastal Fisheries: Dynamics, Management, and Ecosystem Science
Volume: 1
Number: 1
Page Range: pp. 12-21
Date: 2009
Uncontrolled Keywords: North Carolina
Subjects: Ecology
Management
Fisheries
Item ID: 2092
Depositing User: Patti M. Marraro
Date Deposited: 17 May 2009 16:57
Last Modified: 29 Sep 2011 19:40
URI: http://aquaticcommons.org/id/eprint/2092

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