Climate-related hydrological regimes and their effects on abundance of juvenile blue crabs (Callinectes sapidus) in the northcentral Gulf of Mexico

Sanchez-Rubio, Guillermo and Perry, Harriet M. and Biesiot, Patricia M. and Johnson, Donald R. and Lipcius, Romuald N. (2011) Climate-related hydrological regimes and their effects on abundance of juvenile blue crabs (Callinectes sapidus) in the northcentral Gulf of Mexico. Fishery Bulletin, 109(2), pp. 139-146.

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Abstract

The abundance of juvenile blue crabs (Callinectes sapidus) in the northcentral Gulf of Mexico was investigated in response to climate-related hydrological regimes. Two distinct periods of blue crab abundance (1, 1973–94 and 2, 1997–2005) were associated with two opposite climaterelated hydrological regimes. Period 1 was characterized by high numbers of crabs, whereas period 2 was characterized by low numbers of crabs. The cold phase of the Atlantic Multidecadal Oscillation (AMO) and high north-south wind momentum were associated with period 1. Hydrological conditions associated with phases of the AMO and North Atlantic Oscillation (NAO) in conjunction with the north-south wind momentum may favor blue crab productivity by influencing blue crab predation dynamics through the exclusion of predators. About 25% (22–28%) of the variability in blue crab abundance was explained by a north–south wind momentum in concert with either salinity, precipitation, or the Palmer drought severity index, or by a combination of the NAO and precip

Item Type: Article
Title: Climate-related hydrological regimes and their effects on abundance of juvenile blue crabs (Callinectes sapidus) in the northcentral Gulf of Mexico
Personal Creator/Author:
CreatorsEmail
Sanchez-Rubio, Guillermo
Perry, Harriet M.
Biesiot, Patricia M.
Johnson, Donald R.
Lipcius, Romuald N.
Refereed: Yes
Journal or Publication Title: Fishery Bulletin
Volume: 109
Number: 2
Page Range: pp. 139-146
Date: 2011
ISSN: 0090-0656
Issuing Agency: United States National Marine Fisheries Service
Subjects: Biology
Ecology
Fisheries
Item ID: 8712
Depositing User: Patti M. Marraro
Date Deposited: 07 Jun 2012 14:53
Last Modified: 07 Jun 2012 14:53
URI: http://aquaticcommons.org/id/eprint/8712

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