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GULF-OF-MEXICO; WESTERN GULF; SEXUAL-MATURITY; LEUCORAJA-ERINACEA; AMBLYRAJA-RADIATA; WINTER SKATE; AGE; MAINE; SIZE; EXTINCTION
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Full-Text Articles in Life Sciences
Indication Of Density-Dependent Changes In Growth And Maturity Of The Barndoor Skate On Georges Bank, Karson Coutre, Todd Gedamke, David Rudders, William B. Driggers Iii, David M. Koester, James A. Sulikowski
Indication Of Density-Dependent Changes In Growth And Maturity Of The Barndoor Skate On Georges Bank, Karson Coutre, Todd Gedamke, David Rudders, William B. Driggers Iii, David M. Koester, James A. Sulikowski
VIMS Articles
Drastic increases or decreases in biomass often result in density-dependent changes in life history characteristics within a fish population. Acknowledging this phenomenon and in light of the recent biomass increase in Barndoor Skate Dipturus laevis, the current study re-evaluated the growth rate and sexual maturity of 244 specimens collected from 2009-2011within closed areas I and II on Georges Bank, USA. Ages were estimated using vertebral band counts from skate that ranged from 21 to 129cm TL. The von Bertalanffy growth function was applied to pooled age-at-length data. Parameter estimates from the current study of L = 155cm TL and k …