Mesophotic ecosystems at Fernando de Noronha Archipelago, Brazil (South-western Atlantic), reveal unique ichthyofauna and need for conservation

Autor: Caio R. Pimentel, Luiz A. Rocha, Bart Shepherd, Tyler A. Y. Phelps, Jean-Christophe Joyeux, Agnaldo S. Martins, Carlos Eduardo Stein, João B. Teixeira, João Luiz Gasparini, José Amorim Reis-Filho, Ricardo C. Garla, Ronaldo B. Francini-Filho, Stephanie D. T. Delfino, Thayná J. Mello, Tommaso Giarrizzo, Hudson T. Pinheiro
Jazyk: angličtina
Rok vydání: 2020
Předmět:
Zdroj: Neotropical Ichthyology, Vol 18, Iss 4 (2020)
Druh dokumentu: article
ISSN: 1982-0224
DOI: 10.1590/1982-0224-2020-0050
Popis: Abstract Although several studies on the ichthyofauna of the Fernando de Noronha Archipelago have been carried out, its mesophotic fish diversity has never been surveyed before. Here we used SCUBA and technical rebreather diving, baited remote underwater videos and remotely operated vehicle to record shallow (≤ 30 m depth) and mesophotic (31 to 150 m depth) fishes. Nineteen fish species belonging to 14 families are reported here as new records, representing an increase of 8.2% in marine fish richness for the region, which now has a total of 250 species and 77 families. These new records include four potential new species and highlight the importance of surveying mesophotic ecosystems, even in well studied sites. Our results also emphasize the need for protection and attention to the unique ichthyofauna found at mesophotic depths.
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