Overview

Comprehensive Description

Description

  Common names: grunt (English), sargo (English), burro (Espanol)
 
Anisotremus pacifici (Günther, 1864)


Carruco grunt,     Pacific grunt,     Carruco sargo



Body deep, compressed, back high; head short, blunt; mouth small, low, ~ horizontal, lips fleshy; inside mouth not red; teeth in bands on jaws, outer ones larger, conical, none on center roof of mouth; a pair of conspicuous pores plus a central groove under the chin; preopercle finely serrated; dorsal continuous but deeply notched, 4th  spine longest, XI, 14; anal III, 9-10, 2nd  spine long and thick;  longest dorsal spine and 2nd  anal spine < ½  head length; pectoral fins very short, not reaching tip of pelvic; tail forked; scales moderate to large, rough, over entire body and head except front of snout, lips and chin, on membranes between dorsal and anal soft rays;  lines of scales above lateral line in rows parallel to lateral line; lateral-line scales 45-48.


Whitish to dusky pale grey with 4-5 blackish bars on body and head (bars quickly disappear after death); soft dorsal and soft part of anal fin dusky blackish.

Size: to at least 30 cm.

Habitat: inshore waters on sandy or muddy bottoms, also enters estuaries and rivers.

Depth: 3-35 m.

Central Mexico to northern Peru.
   
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Distribution

Range Description

This species is endemic to the Eastern Pacific, and is found from central Mexico to northern Peru.
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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, Mexican + Panamic provinces endemic, Continent, Continent only

Residency: Resident

Climate Zone: Northern Tropical (Mexican Province to Nicaragua + Revillagigedos), Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo)
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Eastern Pacific.
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Depth

Depth Range (m): 3 (S) - 35 (S)
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Physical Description

Morphology

Size

Length max (cm): 30.0 (S)
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Size

Maximum size: 350 mm ---
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This demersal species can be found over hard substrate of shallow coastal waters (McKay and Schneider, 1995) to depths of 35m.

Systems
  • Marine
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Depth range based on 6 specimens in 1 taxon.

Environmental ranges
  Depth range (m): 2 - 17.25

Graphical representation

Depth range (m): 2 - 17.25
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

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Salinity: Marine, Brackish, Freshwater

Inshore/Offshore: Inshore, Inshore Only

Water Column Position: Near Bottom, Bottom, Bottom + water column

Habitat: Soft bottom (mud, sand,gravel, beach, estuary & mangrove), Soft bottom only, Mud, Sand & gravel, Estuary

FishBase Habitat: Demersal
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Trophic Strategy

Feeding

Feeding Group: Carnivore

Diet: mobile benthic worms, mobile benthic crustacea (shrimps/crabs), mobile benthic gastropods/bivalves, octopus/squid/cuttlefish, sponges/seasquirts/bryozoa
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Life History and Behavior

Reproduction

Egg Type: Pelagic, Pelagic larva
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Molecular Biology and Genetics

Molecular Biology

Statistics of barcoding coverage: Anisotremus pacifici

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 0
Specimens with Barcodes: 1
Species With Barcodes: 1
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Conservation

Conservation Status

IUCN Red List Assessment


Red List Category
LC
Least Concern

Red List Criteria

Version
3.1

Year Assessed
2010

Assessor/s
Allen, G. & Robertson, R.

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

Contributor/s

Justification
This species is widespread in the Eastern Pacific, and common in at least part of its range. There are no known major threats to this species, and no current indication of population decline. It is listed as Least Concern.
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IUCN Red List: Not evaluated / Listed

CITES: Not listed
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Population

Population
There is no population information available for this species. It is sometimes collected in trawls but is uncommon.

Population Trend
Unknown
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Threats

Major Threats
There are no major threats known for this species. However, it is considered to be an important commercial fish in Gulf of Montijo, Panama (Vega, 2004).
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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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