Distinctiveness of the mesopelagic fish fauna in the Gulf of Mexico |
| |
| Authors: | Jessica L Bangma Richard L Haedrich |
| |
| Institution: | aDepartment of Wildlife and Fisheries Sciences, Texas A&M University, College Station, TX, USA;bDepartment of Biology, Memorial University, St. John's Newfoundland, Canada;cDepartment of Zoology, University of British Columbia, 2370, 6270 University Blvd., Vancouver, British Columbia, Canada V6T1Z4 |
| |
| Abstract: | We quantify the similarity of the Gulf of Mexico mesopelagic fish fauna to that in adjacent oceanic regions, the Venezuelan and Colombian Basins of the Caribbean Sea and the North and South Sargasso Seas. The South Sargasso and Colombian are the least similar of the areas in terms of their faunal composition, and the Venezuelan and Colombian Basins are the most similar. The Gulf fauna lies somewhere in between, and is a composite of that in the Sargasso and Caribbean Seas. The Gulf of Mexico displays the greatest abundance, biomass and richness (S=140 species), and is an intermediate in evenness (J=0.66) and percent endemism (7.1%). Our findings support the view that the centrally located Gulf is an oceanic ecotone between the Atlantic Tropical and Subtropical faunal regions. |
| |
| Keywords: | Gulf of Mexico Pelagic fishes Fish biogeography |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
