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- FishBase
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espaņol |
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Overview |
Main identification features
- elongate, slender;head pointed
- d: xiii-xiv
- grey + white spot rear back
- pectoral 17-18
Dorsal rays XIII or XIV, 10-12; anal rays II, 12-13; pectoral rays 17-18; lateral-line scales 29-31; gill rakers on lower limb of first arch 21-23; greatest body depth 3.0-3.7 in standard length; similar in appearance and habits to Chromis atrilobata, but is more slender-bodied and reaches a larger size, also its lateral line continues to the top of the tail stalk near the tail fin base.
Grey grading to whitish on underside of head and on belly, scale centers usually lighter; a whitish spot on upper back below soft dorsal fin; each caudal fin lobe with a blackish streak and a black blotch covering pectoral fin base.
Size: attains 16 cm.
Habitat: usually seen in open water over rocky habitats.
Depth: 5-30 m.
Galapagos Islands.
This species evidently disappeared from the Galapagos during the intense El Niņo event of 1982-83, when greatly increased sea temperatures had strong adverse effects on the islands marine fauna and flora. It has not been seen since then in the Galapagos and likely is extinct in those islands. Its sister species, A. hirundo occurs in a similar environment, the Revillagigedos Islands, near the northern limit of the TEP. However, it also lives in warm temperate conditions at Guadalupe Island, well outside the TEP. Hence, it seems possible that populations of A. eupalama may still exist on islands off Peru that have warm temperate conditions, such as the Lobos Islands, a little to the south of the edge of the TEP.
Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 30 m.
Depth Range Min: 5 m.
Diet: zooplankton; pelagic fish larvae; pelagic fish eggs; Pelagic crustacea.
Eastern Pacific Range: Northern limit=2; Southern limit=-2; Western limit=-93; Eastern limit=-90; Latitudinal range=4; Longitudinal range=3.
Egg Type: Benthic; Pelagic larva.
Feeding Group: Planktivore.
FishBase Habitat: Reef Associated.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Reef associated (reef + edges-water column & soft bottom); Rocks; Reef (rock &/or coral); Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 16 cm.
Regional Endemism: Island (s); Island (s) only; TEP endemic; TEP oceanic island (s) endemic; Galapagos Islands endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;
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Links to other sites | |
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References |
- Fowler, H.W., 1944., Results of the Fifth George Vanderbilt Expedition (1941) (Bahamas, Caribbean sea, Panama, Galapagos Archipelago and Mexican Pacific Islands). The Fishes., Acad. Nat. Sci. Philadel., Monographs, 6:57-529.
- Heller , E. and Snodgrass, R.E., 1903., Papers from the Hopkins Stanford Galapagos expedition, 1898-1899. XV. New fishes., Proc. Wash. Acad. Sci., 5:189-229.
- Kendall , W.C. and Radcliffe, L., 1912., The shore fishes. Reports on the scientific results of the expedition to the eastern tropical Pacific, ... by the U.S. Fish Commission steamer ALBATROSS, from October, 1904, to March, 1905, Lieut. Commander L.M. Garret, U.S.N., Commanding. XXV., Mem. Mus. Comp. Zool., 35(3):75-171.
- Snodgrass , R. E. and Heller, E., 1905., Papers from the Hopkins Stanford Galapagos expedition, 1898-1899. XVII. Shorefishes of the Revillagigedo, Clipperton, Cocos and Galapagos Island., Proc. Wash. Acad. Sci., 6:333-427.
- Victor, B. C. and Wellington, G. M., 2000., Endemism and the pelagic larval duration of reef fishes in the eastern Pacific Ocean., Marine Ecology Progress Series, 205:241-248.
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Acknowledgements | |
I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.
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Following modified from FishBase
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Top | See original
http://www.fishbase.org/Summary/speciesSummary.php?genusname=Azurina&speciesname=eupalama ---> http://52.67.158.155/Summary/speciesSummary.php?genusname=Azurina&speciesname=eupalama
http://52.67.158.155/Summary/speciesSummary.php?genusname=Azurina&speciesname=eupalama ---> https://fishbase.net.br/Summary/speciesSummary.php?genusname=Azurina&speciesname=eupalama
&pull 20q v5.145 20180528: Error 500 Can't locate object method "new" via package "LWP::Protocol::https::Socket" https://fishbase.net.br/Summary/speciesSummary.php?genusname=Azurina&speciesname=eupalama |
Updated: 2024-05-20 20:42:00 gmt
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