The Galápagos damsel reaches a length of 15 centimeters. It is olive-gray with a blue tinge, and silvery along the sides. There is a black spot at the base of each pectoral fin. It has a prominent lateral line.[2]
Biology and occurrenceedit
The Galápagos damsel has been recorded from following regions in Galápagos: Floreana, Gardiner Bay, Española, Tagus Cove, Isabela, Marchena, James Bay and Sullivan Bay, Santiago, Wreck Bay, San Cristóbal, Academy Bay, Santa Cruz and Santa Fe. One specimen, found many years ago, which is in the fish collection at the American Museum of Natural History, was collected near Cocos Island. The Galápagos damsel is a plankton feeder. It has been suggested that global climate change may have influenced the upwelling ecosystem of the eastern tropical Pacific causing the extinction of this damselfish.
Possible extinctionedit
The El Niño–Southern Oscillation of 1982 and 1983 led to an increase in the water temperature near the Galápagos Islands. Plankton production was reduced for at least one year, leading to drops in the populations of many planktivorous fish, such as the Galápagos damsel. Despite intensive searches during the next decade, it was not seen again. The International Union for Conservation of Nature lists the fish as a critically endangered species, and one which is possibly extinct. It notes, however, that "populations of A. eupalama may still exist on islands off Peru that have warm temperate conditions, such as the Lobos Islands.[1]
Referencesedit
^ abAllen, G.; Robertson, R.; Rivera, R.; et al. (2010). "Azurina eupalama". The IUCN Red List of Threatened Species. 2010: e.T184017A8219600. doi:10.2305/IUCN.UK.2010-3.RLTS.T184017A8219600.en.
^Froese, R. and D. Pauly, Eds. Azurina eupalama. FishBase. 2013.
Further readingedit
Grove, J. S. and R. J. Lavenberg. The Fishes of the Galápagos Islands. Stanford University Press. 1997. ISBN0-8047-2289-7
Snodgrass, R. E. and E. Heller. Papers from the Hopkins Stanford Galapagos Expedition, 1898-1899. XV. New fishes. 1903.
This Pomacentridae article is a stub. You can help Wikipedia by expanding it.
galapagos, damsel, galápagos, damsel, azurina, eupalama, also, known, blackspot, chromis, possibly, extinct, fish, species, from, family, pomacentridae, endemic, waters, near, galápagos, islands, cocos, island, conservation, statuscritically, endangered, possi. The Galapagos damsel Azurina eupalama also known as the blackspot chromis is a possibly extinct fish species from the family Pomacentridae It is endemic to the waters near the Galapagos Islands and Cocos Island Galapagos damselConservation statusCritically endangered possibly extinct IUCN 3 1 1 Scientific classificationDomain EukaryotaKingdom AnimaliaPhylum ChordataClass ActinopterygiiFamily PomacentridaeGenus AzurinaSpecies A eupalamaBinomial nameAzurina eupalamaHeller and Snodgrass 1903 Contents 1 Description 2 Biology and occurrence 3 Possible extinction 4 References 5 Further readingDescription editThe Galapagos damsel reaches a length of 15 centimeters It is olive gray with a blue tinge and silvery along the sides There is a black spot at the base of each pectoral fin It has a prominent lateral line 2 Biology and occurrence editThe Galapagos damsel has been recorded from following regions in Galapagos Floreana Gardiner Bay Espanola Tagus Cove Isabela Marchena James Bay and Sullivan Bay Santiago Wreck Bay San Cristobal Academy Bay Santa Cruz and Santa Fe One specimen found many years ago which is in the fish collection at the American Museum of Natural History was collected near Cocos Island The Galapagos damsel is a plankton feeder It has been suggested that global climate change may have influenced the upwelling ecosystem of the eastern tropical Pacific causing the extinction of this damselfish Possible extinction editThe El Nino Southern Oscillation of 1982 and 1983 led to an increase in the water temperature near the Galapagos Islands Plankton production was reduced for at least one year leading to drops in the populations of many planktivorous fish such as the Galapagos damsel Despite intensive searches during the next decade it was not seen again The International Union for Conservation of Nature lists the fish as a critically endangered species and one which is possibly extinct It notes however that populations of A eupalama may still exist on islands off Peru that have warm temperate conditions such as the Lobos Islands 1 References edit a b Allen G Robertson R Rivera R et al 2010 Azurina eupalama The IUCN Red List of Threatened Species 2010 e T184017A8219600 doi 10 2305 IUCN UK 2010 3 RLTS T184017A8219600 en Froese R and D Pauly Eds Azurina eupalama FishBase 2013 Further reading editGrove J S and R J Lavenberg The Fishes of the Galapagos Islands Stanford University Press 1997 ISBN 0 8047 2289 7 Snodgrass R E and E Heller Papers from the Hopkins Stanford Galapagos Expedition 1898 1899 XV New fishes 1903 nbsp This Pomacentridae article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title Galapagos damsel amp oldid 1185458705, wikipedia, wiki, book, books, library,
