NDLI: STOCK DEFINITION AND GEOGRAPHIC RANGE

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STOCK DEFINITION AND GEOGRAPHIC RANGE

Content Provider	CiteSeerX
Author	Stock, Puerto Rico
Abstract	Manatees belong to the Order Sirenia with two known families. Family Dugongidae is represented by the extant genera Dugong that is found in the Indo-Pacific region and the extinct genera Hydromalis the only member of the order adapted to cold water. Family Trichechidae is represented by one genus Trichechus and three species: T. senegalensis, the West African manatee, T. inunguis, the Amazonian manatee, and T. manatus, the West Indian manatee. The West Indian manatee is distributed in Caribbean coastal areas and river systems from Virginia, USA to Espiritu Santo, Brazil (Shoshani 2005). Hatt (1934) recognized two T. manatus subspecies: the Antillean manatee (Trichechus manatus manatus) and the Florida manatee (Trichechus manatus latirostris). Domning and Hayek (1986) tentatively divided the West Indian manatee into the Florida manatee T. m. latirostris and the Antillean manatee T. m. manatus based on cranial characters. They suggested that such subspeciation may reflect reproductive isolation brought on by the intemperate northern coast of the Gulf of Mexico and characteristically strong currents found in the Straits of Florida. García-Rodríguez et al. (1998) compared mitochondrial DNA (mtDNA) from eight locations of T. manatus and found that despite the sharing of sixteen haplotypes (a segment of DNA
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Subject Keyword	Garc A-rodr Guez Et Al Order Sirenia Mitochondrial Dna Genus Trichechus Espiritu Santo Sixteen Haplotype Indo-pacific Region Stock Definition Geographic Range Family Trichechidae Trichechus Manatus Latirostris Family Dugongidae Known Family Strong Current Extinct Genus Hydromalis Trichechus Manatus Manatus Caribbean Coastal Area Extant Genus Dugong River System West African Manatee Florida Manatee Intemperate Northern Coast Reproductive Isolation Antillean Manatee Manatus Subspecies Amazonian Manatee Cold Water West Indian Manatee Cranial Character
Content Type	Text

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