Taxonomic diversity of reef fish assemblage on the west coast of the Bay of La Paz, BCS Mexico
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https://doi.org/10.47808/revistabioagro.v1i2.225Keywords:
Taxonomic diversity, coastal reef fish, La Paz bayAbstract
La Paz bay, is one of the largest bays in the central zone of the Gulf of California, this area is characterized by high levels of commercial harvest of fish that exist in the area, but the number of investigations conducted for taxonomic diversity is low. We determined the variation in taxonomic diversity of coastal reef fish assemblage at eight locations along the west side of La Paz bay, during the period march 2002 to april 2003. We assessed changes in taxonomic diversity considering fish taxonomic distance between species diversity indices using alpha, average, beta and gamma, and taxonomic distinctness indices (Δ *) and the average taxonomic distinctness (Δ +). Visual censuses were conducted in 48 transects of 100 * 5 m (500 m2) at an average depth of 5 m at a time of 9:00 to 16:00 hours. There were 24,633 organisms belonging to 92 species of 67 genera of fish. According to Alfa Average diversity indices, Beta and Gamma, the month with the highest diversity was August (19.5, 40.5 and 60 species, respectively) and the lowest diversity was in December (20,625, 27,375 and 48 species, respectively). Taxonomic distinctness indices (Δ *) and average taxonomic distinctness (Δ +) in the spatial analysis showed no difference (p = <0.05), while in temporary form both showed differences (p = <.05).
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