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Overview |
Main identification features
- short wide flap over eye
- body: brown + pale blotches
- pectoral: 17-18
Axelrod's reef-bass
Robust, compressed body; head bluntly rounded profile; upper edge of eye with short, broad-based flap; mouth slightly oblique, reaches past rear of eye; dense band of simple teeth on each jaw; preoperculum with thick spine at upper angel, no serrations; gill opening restricted above by fusion of operculum to body, a flap extending back from upper operculum to beyond pectoral base; 15 rakers on 1st gill arch; dorsal VII(rarely VI),21-22, spines low, fin base long, end of soft part rounded; anal III,17-18, long base, end of soft part rounded; pectoral 17-18 rays, rounded; pelvic I,5, inserted under pectoral base; lateral line in 2 parts, with 35-36 & 18-23 scales on front and rear sections; scales smooth on head & front body, grading into rough posteriorly; inner 1/2s of dorsal, anal & pectoral covered with scales.
Brown overall, tan below; side of body with numerous large pale brown blotches; a large, prominent ocellated dark blotch on upper operculum; 2 dark lines run back and from lower half of eye across cheek; dorsal, tail, anal, and pelvic fins dark; pectorals translucent brown; juvenile uniformly brown body, tan head, diagonal white bar across cheek, vertical white bar under eye
Size: 8.5 cm.
Habitat: coral reef, cryptic.
Depth: 10-100 m.
Endemic to Clipperton.
Attributes
Abundance: Common.
Cites: Not listed.
Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo).
Depth Range Max: 100 m.
Depth Range Min: 10 m.
Diet: bony fishes; mobile benthic crustacea (shrimps/crabs).
Eastern Pacific Range: Northern limit=11; Southern limit=11; Western limit=-110; Eastern limit=-110; Latitudinal range=1; Longitudinal range=1.
Egg Type: Pelagic; Pelagic larva.
Feeding Group: Carnivore.
FishBase Habitat: Reef Associated.
Global Endemism: Tropical Eastern Pacific (TEP) endemic; East Pacific endemic; All species.
Habitat: Corals; Reef associated (reef + edges-water column & soft bottom); Reef (rock &/or coral); Reef only.
Inshore Offshore: Inshore; Inshore Only.
IUCN Red List: Not evaluated / Listed.
Length Max: 8.5 cm.
Regional Endemism: Island (s) only; Island (s); TEP endemic; TEP oceanic island (s) endemic; Clipperton Island endemic; All species.
Residency: Resident.
Salinity: Marine; Marine Only.
Water Column Position: Bottom; Bottom only;
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Names |
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Links to other sites |
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References |
- Allen , G.R. and Robertson, D.R., 1995., 'Pseudogramma axelrodi', A new Species of Serranid Fish from the Tropical Eastern Pacific Ocean., Tropical Fish Hobbyist, 44:72-75.
- Allen , G.R. and Robertson, D.R., 1997., An Annotated Checklist of the fishes of Clipperton Atoll, Tropical Eastern Pacific., Revista de Biologia Tropical, 45:813-843.
- Robertson , D.R. and Allen, G.A., 1996., Zoogeography of the shorefish fauna of Clipperton Atoll., Coral Reefs, 15:121-131.
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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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http://www.fishbase.org/Summary/speciesSummary.php?genusname=Pseudogramma&speciesname=axelrodi ---> http://52.67.158.155/Summary/speciesSummary.php?genusname=Pseudogramma&speciesname=axelrodi http://52.67.158.155/Summary/speciesSummary.php?genusname=Pseudogramma&speciesname=axelrodi ---> https://fishbase.net.br/Summary/speciesSummary.php?genusname=Pseudogramma&speciesname=axelrodi https://fishbase.net.br/Summary/speciesSummary.php?genusname=Pseudogramma&speciesname=axelrodi ---> https://fishbase.net.br/summary/Pseudogramma-axelrodi.html
Pseudogramma axelrodi
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Teleostei (teleosts) >
Perciformes/Serranoidei
(Groupers) >
Grammistidae
(Soapfishes)
Etymology:
Pseudogramma:
Greek, pseudes = false + Greek, gramma = letter, signal (Ref.
45335
)
;
axelrodi:
Named for Dr. Herbert R. Axelrod, founder and chairman of T.F.H. Publications and Publisher of Tropical Fish Hobbyist.
.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 15 - 100 m (Ref.
27020
). Tropical
Eastern Pacific: Clipperton Islands.
Size / Weight / Age
Maturity: L
m
 
?
  range ? - ? cm
Max length : 6.1 cm SL male/unsexed; (Ref.
27020
)
Dorsal
spines
(total): 6 - 7;
Dorsal
soft rays
(total): 20-22;
Anal
spines
: 3;
Anal
soft rays
: 17 - 18;
Vertebrae
: 26. Live specimens brown, including fins; body covered with numerous large tan blotches. Upper part of operculum with a prominent eye-sized ocellated dark brown spot; two dark brown lines radiating backward from lower half of eye across the cheek, and a vertical white bar below the eye. Lateral line scales + 4-23 when counting pored as well as the tubed scales. Longitudinal scale series 49-51. A short, broad-based, triangular, dermal flap dorsally on eye. A large pore in interorbital space on each side close to the edge of the orbit; a small median pore posterior in interorbital space. Tubular anterior nostril when laid back reach slightly more than half distance to posterior nostril.
A cryptic species found in crevices and caves on the outer reef slope at 15-30 m; collected with rotenone (Ref.
81033
). Minimum depth from Ref. 58018.
Life cycle and mating behavior
Maturity
|
Reproduction
|
Spawning
|
Eggs
|
Fecundity
|
Larvae
Randall, J.E. and C.C. Baldwin
, 1997. Revision of the serranid fishes of the subtribe
Pseudogrammina
, with descriptions of five new species. Indo-Pac. Fish. (26):56 p. (Ref.
27020
)
IUCN Red List Status (Ref.
130435
)
Near Threatened (NT)
; Date assessed:
03 May 2008
CITES
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804
): PD
50
= 0.5001 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00451 - 0.02922), b=3.06 (2.84 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245
).
Trophic level (Ref.
69278
): 3.6 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153
): Low vulnerability (10 of 100).
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Updated: 2024-04-27 03:40:27 gmt
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