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Scales of spatial variation in demography of a large coral-reef fish--an exception to the typical model?
From:
Fishery Bulletin
| Date:
July 1, 2003| Author:
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COPYRIGHT 2003 National Marine Fisheries Service. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan. All inquiries regarding rights should be directed to the Gale Group.
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Abstract--Spatial variation in demographic parameters of the red throat emperor (Lethrinus miniatus) was examined among 12 coral reefs in three geographic regions (Townsville, Mackay, and Storm Cay) spanning over 3[degrees] of latitude of the Great Barrier Reef, Australia. Estimates of demographic parameters were based on age estimates from counts of annuli in whole otoliths because there was no significant difference in age estimates between whole and sectioned etoliths. There were significant regional differences in age structures, rates of somatic and otolith growth, and total ...
<0.0001; Mackay vs. Storm Cay: [X.sup.2]=22.27, P=0.001). The most obvious difference among regions was the greater relative abundance of older fish (>
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