> Oceanography > Issues > Archive > Volume 23, Number 1

2010, Oceanography 23(1):200–201, http://dx.doi.org/10.5670/oceanog.2010.83

SPOTLIGHT 11 | Dom João de Castro Seamount

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Authors

Ricardo S. Santos | Instituto do Mar (IMAR), Instituto de Sistemas e Robótica (ISR), and Department of Oceanography and Fisheries, and University of the Azores, Horta, Faial, Portugal

Fernando Tempera | IMAR, ISR, and Department of Oceanography and Fisheries, University of the Azores, Horta, Faial, Portugal

Ana Colaço | IMAR, ISR, and Department of Oceanography and Fisheries, University of the Azores, Horta, Faial, Portugal

Frederico Cardigos | was at IMAR, ISR, and Department of Oceanography and Fisheries, University of the Azores, Horta, Faial, Portugal, and is currently at Environment of the Azores, Azores, Portugal

Telmo Morato | IMAR, ISR, and Department of Oceanography and Fisheries, University of the Azores, Horta, Faial, Portugal, and is also with the Oceanic Fisheries Program, Secretariat of the Pacific Community, Noumea, New Caledonia

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First Paragraph

Dom João de Castro is an isolated seamount located in the Azores archipelago (Northeast Atlantic), between the islands Terceira and São Miguel. The shallower parts of this seamount were formed in 1720, when a volcanic cone emerged from the sea that reached ~ 1-km across and 150-m high (Weston, 1964). This cone was eroded by ocean swells in just four months, and today only a large submerged caldera (300–600 m in diameter) remains whose bottom is at 50-m depth and top is at 13-m depth. Dom João de Castro is an important fishing ground both for demersal fish, such as the black-spot seabream Pagellus bogaraveo and the blue-mouth Helicolenus dactylopterus, and tuna pelagic visitors.

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Full Article

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Citation

Santos, R.S., F. Tempera, A. Colaço, F. Cardigos, and T. Morato. 2010. Spotlight 11: Dom João de Castro Seamount. Oceanography 23(1):200–201, http://dx.doi.org/10.5670/oceanog.2010.83.

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