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Free Content Onuphidae of the Gulf of California and the Gulf of Tehuantepec, Mexican Pacific

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On the continental shelf of both the Gulf of California (GC) and the Gulf of Tehuantepec (GT), the Onuphidae is one of the best represented families, both in terms of abundance and frequency. Sampling was done on board the R/V El Puma with a Smith McIntyre grab at 93 stations (41 in GC and 52 in GT) at depths between 20 and 220 m. A total of 1294 onuphids (765 in GT and 529 in GC) were collected at 56 stations (78% in GC and 46% in GT). We identified 25 species (6 in GT and 25 in GC). Diopatra obliqua was the most abundant species in the Gulf of Tehuantepec with 723 specimens present at 15 stations. In the Gulf of California, the most abundant was Kinbergonuphis pulchra (134 in 6 stations), and Mooreonuphis elsiae was the most frequent (46 in 16 stations). The division of this fauna in biogeographic categories showed that it is predominantly amphiamerican.

Document Type: Research Article

Publication date: March 1, 1997

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