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First records of two rays and three bony fishes for the Galapagos Islands

Published online by Cambridge University Press:  04 April 2023

Magdalena E. Mossbrucker*
Affiliation:
Charles Darwin Foundation, Charles Darwin Research Station, Av. Charles Darwin s/n, Puerto Ayora, Galapagos, Ecuador
David Acuña-Marrero
Affiliation:
Charles Darwin Foundation, Charles Darwin Research Station, Av. Charles Darwin s/n, Puerto Ayora, Galapagos, Ecuador
Megan E. Cundy
Affiliation:
Charles Darwin Foundation, Charles Darwin Research Station, Av. Charles Darwin s/n, Puerto Ayora, Galapagos, Ecuador
Denisse Fierro-Arcos
Affiliation:
Charles Darwin Foundation, Charles Darwin Research Station, Av. Charles Darwin s/n, Puerto Ayora, Galapagos, Ecuador Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Australia
Jenifer M. Suárez-Moncada
Affiliation:
Galapagos National Park Directorate, Av. Charles Darwin s/n, Puerto Ayora, Galapagos, Ecuador
Etienne Rastoin-Laplaine
Affiliation:
Charles Darwin Foundation, Charles Darwin Research Station, Av. Charles Darwin s/n, Puerto Ayora, Galapagos, Ecuador School of Molecular and Life Sciences, Curtin University, Bentley 6102, Western Australia, Australia
Pelayo Salinas-de-León
Affiliation:
Charles Darwin Foundation, Charles Darwin Research Station, Av. Charles Darwin s/n, Puerto Ayora, Galapagos, Ecuador Save Our Seas Foundation Shark Research Center and Guy Harvey Research Institute, Nova Southeastern University, 8000 North Ocean Drive, Dania Beach, 33004 Florida, USA
*
Author for correspondence: Magdalena E. Mossbrucker, E-mail: me.mossbrucker@hotmail.com

Abstract

The Galapagos Islands lie within the oceanic ecoregion of the Tropical Eastern Pacific, which has a unique fish assemblage composition due to the influence of several ocean currents and El Niño Southern Oscillation (ENSO) events. In the El Niño phase of these events, water temperature changes facilitate the movement of fish species between oceanic ecoregions, as well as across the Eastern Pacific Barrier. Here, we present five new fish records for the Galapagos Marine Reserve based on underwater imagery. These include two rays (Mobula thurstoni and Myliobatis longirostris) and three bony fishes (Lobotes pacifica, Lutjanus colorado and Sphyraena stellata). Of these, the first species is proposed as potentially resident to the Galapagos, and the latter four as vagrant species in the Galapagos until further sightings can conclusively determine their status. The effects of ENSO, the use of underwater video technology, and the importance of up-to-date and accurate species listings to understand the impact of the climate crisis are discussed.

Information

Type
Marine Record
Copyright
Copyright © The Author(s), 2023. Published by Cambridge University Press on behalf of Marine Biological Association of the United Kingdom

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