Overview

Comprehensive Description

Description

  Common names: goby (English), gobio (Espanol)
 
Elacatinus inornatus Bussing, 1990


Inornate goby


Elongate; head rounded; upper lip connected to snout at front; a pore midway between front of the two eyes; 2 pores on preopercle; no teeth on roof of mouth; tongue with blunt tip; dorsal VII + I, 10 (rarely 9); anal rays I, 8-9; pectoral rays 18-20 (usually 21); pelvic fins fused in a disc; tail rounded; no scales.

Head orange-red or pinkish, with 3 white bars; an additional white bar at level of pectoral fin base; body translucent yellow with 5 broad, internal brown bars.


Size: to 3.3 cm.

Inhabits coral and rocky reefs.

Depth: 5-30 m.

Costa Rica to Colombia.   
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Biology

Inhabits coral and rocky reefs (Ref. 11482). Mobile-invertebrate feeder (Ref. 57615). Picks ectoparasites from other fishes.
  • Allen, G.R. and D.R. Robertson 1994 Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482)
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Distribution

Depth

Depth Range (m): 5 (S) - 30 (S)
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Zoogeography

See Map (including site records) of Distribution in the Tropical Eastern Pacific 
 
Global Endemism: All species, East Pacific endemic, Tropical Eastern Pacific (TEP) endemic

Regional Endemism: All species, TEP endemic, Continental TEP endemic, Panamic province endemic, Continent, Continent only

Residency: Resident

Climate Zone: Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
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Range Description

This species is endemic to the Eastern Pacific, ranging from Nicaragua to Colombia (Hoese and Reader, 2001).
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Eastern Central Pacific: Gulf of California to Colombia.
  • Allen, G.R. and D.R. Robertson 1994 Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482)
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Physical Description

Morphology

Size

Length max (cm): 3.3 (S)
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Dorsal spines (total): 6 - 7; Dorsal soft rays (total): 9 - 11; Analspines: 1; Analsoft rays: 8 - 10
  • Hoese, D.F. and S. Reader 2001 A preliminary review of the eastern Pacific species of Elacatinus (Perciformes: Gobiidae). Revista de Biologia Tropical 49(Suppl. 1):157-167. (Ref. 87125)
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Size

Max. size

3.2 cm SL (male/unsexed; (Ref. 11482))
  • Allen, G.R. and D.R. Robertson 1994 Fishes of the tropical eastern Pacific. University of Hawaii Press, Honolulu. 332 p. (Ref. 11482)
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Diagnostic Description

Distinguished by the following characters: head plump, more or less rounded, dorsoventrally compressed; mouth slightly oblique, forming an angle of about 20° to 25° with body axis; maxilla extending under middle to rear margin of eye, occasionally only to front of pupil; profile of snout steeply rounded in lateral view; interorbital narrow equal to or less than one-half eye length; gill-rakers on outer face of first arch short and slender; those on second and following arches shorter; mandibular frenum without lobes; anterior nostril a short tube, posterior nostril with a raised rim; most males with first, rarely second, first dorsal-fin spines filamentous, the first reaching to last first dorsal-fin spine base to second ray base of second dorsal fin, and occasionally to the ninth dorsal-fin ray base; scales absent (Ref. 87125).
  • Hoese, D.F. and S. Reader 2001 A preliminary review of the eastern Pacific species of Elacatinus (Perciformes: Gobiidae). Revista de Biologia Tropical 49(Suppl. 1):157-167. (Ref. 87125)
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Ecology

Habitat

Salinity: Marine, Marine Only

Inshore/Offshore: Inshore, Inshore Only

Water Column Position: Bottom, Bottom only

Habitat: Reef (rock &/or coral), Reef only, Rocks, Corals, Reef associated (reef + edges-water column & soft bottom)

FishBase Habitat: Reef Associated
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Habitat and Ecology

Habitat and Ecology
This species inhabits rocky reefs at depths from 3 to 30m. According to Dominici-Arosemena and Wolff (2006), this fish is present in deep rocky reefs and zones of massive coral in Gulf of Chiriqui, Panama.

Systems
  • Marine
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Environment

reef-associated; marine; depth range ? - 21 m (Ref. 87125), usually ? - 15 m (Ref. 87125)
  • Hoese, D.F. and S. Reader 2001 A preliminary review of the eastern Pacific species of Elacatinus (Perciformes: Gobiidae). Revista de Biologia Tropical 49(Suppl. 1):157-167. (Ref. 87125)
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Depth range based on 6 specimens in 1 taxon.

Environmental ranges
  Depth range (m): 7 - 27

Graphical representation

Depth range (m): 7 - 27
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Trophic Strategy

Feeding

Feeding Group: Carnivore, Ectoparasite cleaner

Diet: mobile benthic worms, mobile benthic crustacea (shrimps/crabs), mobile benthic gastropods/bivalves, ectoparasites
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Life History and Behavior

Reproduction

Egg Type: Benthic, Pelagic larva
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Conservation

Conservation Status

IUCN Red List: Not evaluated / Listed

CITES: Not listed
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IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Findley, L. & Van Tassell, J.

Reviewer/s
Carpenter, K., Polidoro, B. & Livingstone, S. (Global Marine Species Assessment Team)

Contributor/s

Justification
This species is restricted to rocky reef habitat within its range in the Eastern Pacific and is considered uncommon throughout its range in suitable habitat. However, there are no known major threats for this species, and no current indication of widespread population decline. It is listed as Least Concern.
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Population

Population
There is no population information available for this species. It is not commonly seen.

Population Trend
Unknown
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Threats

Major Threats
There are no major threats known for this species.
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Least Concern (LC)
  • IUCN 2006 2006 IUCN red list of threatened species. www.iucnredlist.org. Downloaded July 2006.
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Management

Conservation Actions

Conservation Actions
There are no known conservation measures for this species. However, this species distribution falls partially into a number of Marine Protected Areas in the Eastern Pacific region (WDPA 2006).
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