STOCK DEFINITION AND GEOGRAPHIC RANGE
Walker et al. 1999); a shallow water ecotype and a deep water ecotype which correspond to nearshore and offshore forms, respectively. Both ecotypes have been sho wn to inh abit waters in the western North Atlantic Ocean (Hersh and Duffield 1990; M ead and Potter 199 5; Hoelzel et al. 1998; Walker et...
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| Format: | Text |
| Language: | English |
| Published: |
2000
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| Online Access: | http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.294.7382 http://www.nmfs.noaa.gov/pr/pdfs/sars/ao2000dobn-wnco.pdf |
| Summary: | Walker et al. 1999); a shallow water ecotype and a deep water ecotype which correspond to nearshore and offshore forms, respectively. Both ecotypes have been sho wn to inh abit waters in the western North Atlantic Ocean (Hersh and Duffield 1990; M ead and Potter 199 5; Hoelzel et al. 1998; Walker et al. 1999). The inshore and offshore forms, of all age classes, can be positively identified based on differences in morph ometrics, parasite loads, and prey (Mead and Potter 1995). Hoelzel et al. (1998) found significant differentiation between the nearshore and offshore form s in both nuclear an d mtDN A markers, and concluded the two forms w ere distinct. Curry (1997) concluded that, based on differences in mtDNA haplotypes, the nearshore animals in the northern Gulf of Mexico and the w estern No rth Atlantic w ere significantly different stocks. Bottlenose dolphins which had stranded |
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