Publication Date:
2001-02-24
Description:
Identifying natal origins of marine fishes is challenging because of difficulties in conducting mark-recapture studies in marine systems. We used natural geochemical signatures in otoliths (ear bones) to determine natal sources in weakfish (Cynoscion regalis), an estuarine-spawning marine fish, in eastern North America. Spawning site fidelity ranged from 60 to 81%, comparable to estimates of natal homing in birds and anadromous fishes. These data were in contrast to genetic analyses of population structure in weakfish. Our findings highlight the need for consideration of spatial processes in fisheries models and have implications for the design of marine reserves in coastal regions.〈br /〉〈span class="detail_caption"〉Notes: 〈/span〉Thorrold, S R -- Latkoczy, C -- Swart, P K -- Jones, C M -- New York, N.Y. -- Science. 2001 Jan 12;291(5502):297-9.〈br /〉〈span class="detail_caption"〉Author address: 〈/span〉Department of Biological Sciences, Laboratory for Isotope and Trace Element Research, Old Dominion University, Norfolk, VA 23529, USA. sthorrold@whoi.edu〈br /〉〈span class="detail_caption"〉Record origin:〈/span〉 〈a href="http://www.ncbi.nlm.nih.gov/pubmed/11209078" target="_blank"〉PubMed〈/a〉
Keywords:
Animals
;
Discriminant Analysis
;
Elements
;
Female
;
*Homing Behavior
;
Isotopes
;
Otolithic Membrane/*chemistry
;
Perciformes/*physiology
;
Population Dynamics
;
Probability
;
Reproduction
;
Seawater
;
United States
Print ISSN:
0036-8075
Electronic ISSN:
1095-9203
Topics:
Biology
,
Chemistry and Pharmacology
,
Computer Science
,
Medicine
,
Natural Sciences in General
,
Physics
Permalink
