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The suprabenthic peracarid fauna collected at bathyal depths in the Ionian Sea (eastern Mediterranean)

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The specific composition of peracarid Crustacea (suprabenthos) caught at bathyal depths (473-603 m) in the Ionian Sea (eastern Mediterranean) is presented. A total of 66 species were identified (11 mysids, 16 cumaceans, 25 gammaridean amphipods, 13 isopods, and 1 tanaid). At least 19 of the peracarids cited are new records for the eastern Mediterranean: Arrhis mediterraneus, Bathymedon longirostris, Oediceroides pilosus, Pardaliscoides stebbingi, and Syrrhoe affinis (Amphipoda); Dactylamblyops sp., Euchaetomeropsis merolepis, Pseudomma nanum, Calyptomma puritani, and Erythrops neapolitanus (Mysidacea); Belonectes parvus, Disconectes cf. furcatus, Disconectes cf. phallangium, Ilyarachna longicornis, and Eurydice cf. grimaldii (Isopoda); Campylaspis horridoides, Cumella gracillima, Cumellopsis puritani, and Eudorella truncatula (Cumacea). Mysids, particularly Boreomysis arctica, were the dominant species of this bathyal community. Qualitative comparison with the deep suprabenthic fauna from the western Mediterranean showed that a similar species composition and diversity is found in both areas. However, a number of dominant species (e.g., Rhachotropis caeca and Bathymedon longirostris) are distributed shallower in the Ionian Sea than they are in the Catalan Sea (western basin) where they are dominant on the lower slope (1200-1350 m).

Se presenta la composición específica de los crustáceos peracáridos (suprabentos) capturados en profundidades batiales (473-603 m) del Mar Jónico (Mediterráneo oriental). Un total de 66 especies han sido identificadas (11 misidáceos, 16 cumáceos, 25 anfípodos gammarideos, 13 isópodos y 1 tanaidáceo). Por lo menos 19 de los peracáridos capturados son nuevas citas para el Mediterráneo oriental: Arrhis mediterraneus, Bathymedon longirostris, Oediceroides pilosus, Pardaliscoides stebbingi, y Syrrhoe affinis(Amphipoda); Dactylamblyops sp., Euchaetomeropsis merolepis, Pseudomma nanum, Calyptomma puritani, y Erythrops neapolitanus (Mysidacea); Belonectes parvus, Disconectes cf. furcatus, Disconectes cf. phallangium, Ilyarachna longicornis, y Eurydice grimaldii (Isopoda); Campylaspis horridoides, Cumella gracillima, Cumellopsis puritani, y Eudorella truncatula (Cumacea). Los misidáceos, especialmente Boreomysis arctica, han sido las especies dominantes en esta comunidad batial. La comparación cualitativa con la fauna suprabentónica de profundidad del Mediterráneo occidental mostró que la composición de las especies y la diversidad es similar en ambas zonas. Sin embargo, algunas especies dominantes (p.e., Rhachotropis caeca y Bathymedon longirostris) se distribuyen a menor profundidad en el Mar Jónico que en el Mar Catalán ( cuenca occidental), donde estas especies se encuentran en el talud inferior (1200-1350 m).

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/content/journals/10.1163/156854003322316245
2003-05-01
2016-07-28

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