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Acanthemblemaria castroi Stephens and Hobson, 1966
GALAPAGOS BARNACLE BLENNY
Life   Vertebrata   Fish   Chaenopsidae   Acanthemblemaria

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Acanthemblemaria castroi
© Copyright Ross Robertson, 2006 · 12
Acanthemblemaria castroi

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Acanthemblemaria castroi
© Copyright Ross Robertson, 2006 · 12
Acanthemblemaria castroi
espa˝ol

Overview
Main identification features
  • forehead: no spines
  • head: yellow spots;iris: red
  • body: dark + 2 rows white blotches
Galapagos barnacle-blenny

Dorsal rays XXIII-XXV, 12-14, total dorsal elements 36-38; anal rays II, 24-26; pectoral rays 13 or 14 (usually 13); head spines well developed only on snout and infraorbital bones; top of head behind eyes with rough ridges, but weak spines sometimes present; a single unbranched or branched cirrus above eye.

Primarily reddish brown with about 10 white spots (decreasing in size posteriorly) along middle of side; a second row of somewhat diamond-shaped pale marks along base of dorsal fin; throat and chin with yellow spots; iris red.

Size: grows to 6 cm.

Habitat: dwells in empty barnacle shells on rocky reefs.

In 1-25 m depth; they are seldom seen in the open.

Galßpagos Islands.


Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 25 m.
Depth Range Min: 1 m.
Diet: mobile benthic crustacea (shrimps/crabs); zooplankton; pelagic fish eggs.
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: Carnivore; 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); Barnacles & worm tubes; Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 6 cm.
Regional Endemism: Island (s) only; Island (s); TEP endemic; TEP oceanic island (s) endemic; Galapagos Islands endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;


Names
Scientific source:

Links to other sites

References
  • Edgar, G.J. Banks, S., Fari˝a, J.M., Calvopi˝a, M. and MartÝnez, C., 2004., Regional biogeography of shallow reef fish and macro-invertebrate communities in the Galapagos archipelago., Journal of Biogeography, 31:1107-1124.
  • Hastings , P.A. and Robertson, D.R., 1999., Acanthemblemaria atrata and Acanthemblemaria mangognatha, New Species of Eastern Pacific Barnacle Blennies (Chaenopsidae) from Isla del Coco, Costa Rica, and Islas Revillagigedo, Mexico, and their Relationships with other Barnacle Blennies., Revue Francaise de Aquariologie, 25:107-118.
  • Hastings, P.A., 2000., Biogeography of the Tropical Eastern Pacific: distribution and phylogeny of chaenopsid fishes., Zoological Journal of the Linnean Society, 128:319-335.
  • Humann, P., 1993., Reef Fish Identification: Galapagos., New World Publishing:192pp.
  • Lindquist , D. G. and Kotrschal, K. M., 1987., The diets in four Pacific tub( blennies (Acanthemblemaria: Chaenopsidae): Lack of ecological di. vergence in syntopic species., Marine Ecology, 8:327-335.
  • Rosenblatt , R.H. and McCosker, J.E., 1988., A new species of Acanthemblemaria from Malpelo Island, with a key to the Pacific members of the genus (Pisces: Chaenopsidae)., Proc. Calif. Acad. Sci., 45:103-110.
  • Stephens , J.S. Jr , Hobson , E.S. and Johnson, R.K., 1966., Notes on distribution, behavior, and morphological variation in some chaenopsid fishes from the tropical eastern Pacific with descriptions of two new species, Acanthemblemaria castroi and Coralliozetus springeri., Copeia, 1966(3):424-438.

Acknowledgements

I thank Ashley MacDonald and John Pickering, University of Georgia, for technical support in building this page.


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Common name (e.g. trout)

Genus + Species (e.g. Gadus morhua)

Acanthemblemaria castroi Stephens & Hobson , 1966

Galapagos barnacle blenny Add your observation in Fish Watcher
Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Acanthemblemaria castroi   AquaMaps   Data sources: GBIF OBIS
Upload your photos  and  videos
Pictures | Videos |     Google image Image of Acanthemblemaria castroi (Galapagos barnacle blenny) Acanthemblemaria castroi
Picture by Robertson, R.

Classification / Names Common names | Synonyms | Catalog of Fishes ( gen. , sp. ) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Chaenopsidae (Pike-, tube- and flagblennies)
Etymology: Acanthemblemaria: Greek, akantha = thorn + Greek, emblema, -atos, anything that is nailed, knocked in; also anything with bass or high relief (Ref. 45335 ) .

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 1 - 23 m (Ref. 5227 ), usually 6 - 12 m (Ref. 5227 ).   Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southeast Pacific: endemic to the Galapagos Islands.

Size / Weight / Age

Maturity: L m   ?   range ? - ? cm
Max length : 6.0 cm TL male/unsexed; (Ref. 11482 )

Biology     Glossary (e.g. epibenthic)

Lives in empty barnacle shells. Often perches in the opening with only the head protruding. Seldom seen in the open. Darts out to nab bits of floating food (Ref. 5227 ). Oviparous (Ref. 56066 ). Eggs are attached to the walls of the parent's shelter and are brooded by the male parent (Ref. 56066 ).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Oviparous (Ref. 56066 ). Males guard the eggs until they hatch (Ref. 56066 ).

Main reference Upload your references | References | Coordinator : Williams, Jeffrey T. | Collaborators

Allen, G.R. and D.R. Robertson , 1994. Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482 )

IUCN Red List Status (Ref. 120744 )

  Vulnerable (VU)  (D2); Date assessed: 25 May 2007

CITES (Ref. 118484 )

Not Evaluated

CMS (Ref. 116361 )

Not Evaluated

Threat to humans

  Harmless




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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes ( gen. , sp. ) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank( genome , nucleotide ) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Tree of Life | Wikipedia( Go , Search ) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969 ): 23.5 - 25.6, mean 23.8 (based on 20 cells). Phylogenetic diversity index (Ref. 82805 ):  PD 50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high]. Bayesian length-weight: a=0.00457 (0.00182 - 0.01148), b=3.08 (2.86 - 3.30), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245 ). Trophic Level (Ref. 69278 ):  3.4   ±0.5 se; Based on size and trophs of closest relatives Resilience (Ref. 120179 ):  High, minimum population doubling time less than 15 months (). Vulnerability (Ref. 59153 ):  Low vulnerability (10 of 100) .

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