Copepod crustaceans of the genus Gaussia inhabit open ocean waters in epipelagic and bathypelagic zones from 0 to 5000 m. They show high-speed vertical migration and bioluminescent characteristics. In the Atlantic Ocean only the species G. asymmetrica Björnberg T. K. S. & Campaner, 1988 and G. princeps (Scott T., 1894) have been recorded previously. We report the first occurrence of the rarely recorded G. intermedia Defaye, 1998 for the Atlantic off Brazil. The specimens were collected around the Rocas Atoll (3°51′S 33°49′W), through the ABRAÇOS (Acoustic along the BRazilian COast) project on board R/V “Antea” in October 2015, using a micronekton net (mesh size 1 mm) and oblique hauls. Five specimens were collected at Rocas Atoll, in depths of 510-525 m. This finding expands the global distribution of G. intermedia and is the first occurrence in the Atlantic Ocean, updating the checklist of meso-bathypelagic copepods for Brazilian waters.
Crustáceos copépodas do gênero Gaussia habitam águas abertas oceânicas em zonas epipelágicas e batipelágicas, de 0 a 5000 m. Eles apresentam migração vertical em altas velocidades e características bioluminescentes. No Oceano Atlântico apenas as espécies G. asymmetrica Björnberg T. K. S. & Campaner, 1988 e G. princeps (Scott T., 1894) foram registradas anteriorment. Nós reportamos a primeira ocorrência do raramente registrado G. intermedia Defaye, 1998 para o Atlântico fora do Brasil. Os espécimes foram coletados ao redor do Atol das Rocas (3°51′S 033°49′W), através do projeto ABRAÇOS (Acoustic along the BRazilian COast), a bordo do R/V “Antea” em Outubro de 2015, usando uma rede de micronecton (com abertura de malha 1 mm) em arrastos oblíquos. Cinco espécimes foram coletados no Atol das Rocas, nas profundidades de 510-525 m. Este achado expande a distribuição global de Gaussia intermedia e sua primeira ocorrência no Oceano Atlântico, atualizando o checklist dos copépodas de meso-batipelágicos para águas Brasileiras.
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Copepod crustaceans of the genus Gaussia inhabit open ocean waters in epipelagic and bathypelagic zones from 0 to 5000 m. They show high-speed vertical migration and bioluminescent characteristics. In the Atlantic Ocean only the species G. asymmetrica Björnberg T. K. S. & Campaner, 1988 and G. princeps (Scott T., 1894) have been recorded previously. We report the first occurrence of the rarely recorded G. intermedia Defaye, 1998 for the Atlantic off Brazil. The specimens were collected around the Rocas Atoll (3°51′S 33°49′W), through the ABRAÇOS (Acoustic along the BRazilian COast) project on board R/V “Antea” in October 2015, using a micronekton net (mesh size 1 mm) and oblique hauls. Five specimens were collected at Rocas Atoll, in depths of 510-525 m. This finding expands the global distribution of G. intermedia and is the first occurrence in the Atlantic Ocean, updating the checklist of meso-bathypelagic copepods for Brazilian waters.
Crustáceos copépodas do gênero Gaussia habitam águas abertas oceânicas em zonas epipelágicas e batipelágicas, de 0 a 5000 m. Eles apresentam migração vertical em altas velocidades e características bioluminescentes. No Oceano Atlântico apenas as espécies G. asymmetrica Björnberg T. K. S. & Campaner, 1988 e G. princeps (Scott T., 1894) foram registradas anteriorment. Nós reportamos a primeira ocorrência do raramente registrado G. intermedia Defaye, 1998 para o Atlântico fora do Brasil. Os espécimes foram coletados ao redor do Atol das Rocas (3°51′S 033°49′W), através do projeto ABRAÇOS (Acoustic along the BRazilian COast), a bordo do R/V “Antea” em Outubro de 2015, usando uma rede de micronecton (com abertura de malha 1 mm) em arrastos oblíquos. Cinco espécimes foram coletados no Atol das Rocas, nas profundidades de 510-525 m. Este achado expande a distribuição global de Gaussia intermedia e sua primeira ocorrência no Oceano Atlântico, atualizando o checklist dos copépodas de meso-batipelágicos para águas Brasileiras.
All Time | Past Year | Past 30 Days | |
---|---|---|---|
Abstract Views | 366 | 38 | 4 |
Full Text Views | 185 | 7 | 0 |
PDF Views & Downloads | 85 | 63 | 0 |