Overview

Comprehensive Description

Description

Common names: bass (English), cabrilla (Espanol)
 
Hemanthias signifer (Garman, 1899)

Hookthroat bass,     Damsel bass,     Damsel thread-fin bass



Body elongate, compressed; head short, compressed; eye large;  mouth strongly oblique, without accessory bone above top jaw bone; canine teeth at front of mouth; teeth on center and sides of roof of mouth; preopercle margin serrated above and below;  adults with pointed, hook-like spine at front of throat where it joins base of gill arches; 33-38 gill rakers; dorsal with X spines, 3rd  spine long, filamentous, 13-14 rays; anal III, 7-9;  pectoral 18-20 rays; pelvics long; tail weakly forked, outer rays longest in adults and juveniles; scales small, rough,  7-8 rows between 5th  dorsal fin and lateral line; top jaw and most of snout and area between eyes scaleless; 59-69 scales on lateral line.

Head, body and fins pink; yellow stripe from snout under eye, can extend to edge opercle; yellow spots on upper operculum; sometimes yellow spots on lower flank; dorsal and anal pink, yellow margin; tail pink, upper and lower margins yellow; pelvics pink, yellow tips; pectoral yellowish.

Size: 42 cm.

Habitat: demersal on rocky reefs.

Depth: 25-305 m.

Southern California and the lower ¾ of the Gulf of California to Peru and Malpelo.

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Biology

Probably forms schools and lives near the bottom in deep waters (Ref. 9342). Of some commercial importance in zones where it is abundant (Ref. 9342).
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Distribution

Range Description

This species is endemic to the Eastern Pacific and is found from southern California and the Gulf of California to northern Peru, including Malpelo Island.
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Depth

Depth Range (m): 25 (S) - 305 (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, Continent + Island (s), Continent, Island (s)

Residency: Resident

Climate Zone: North Temperate (Californian Province &/or Northern Gulf of California), Northern Subtropical (Cortez Province + Sinaloan Gap), Northern Tropical (Mexican Province to Nicaragua + Revillagigedos), Equatorial (Costa Rica to Ecuador + Galapagos, Clipperton, Cocos, Malpelo), South Temperate (Peruvian Province )

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Eastern Pacific: Playa del Rey in southern California, USA to Peru.
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Physical Description

Morphology

Size

Length max (cm): 42.0 (S)
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Size

Maximum size: 420 mm TL
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Max. size

42.0 cm TL (male/unsexed; (Ref. 9342)); max. published weight: 680 g (Ref. 40637)
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Diagnostic Description

A sharp spine projecting anteriorly from ventral border of urohyal (Ref. 40817).
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Type Information

Syntype for Centristhmus signifer Garman
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1891
Locality: Off Panama:, Panama, Pacific
Depth (m): 155 to 155
Vessel: Albatross
  • Syntype: Garman, S. 1899. Memoirs of the Museum of Comparative Zoology at Harvard College. 24: 48, pl. 69.
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Syntype for Centristhmus signifer Garman
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Year Collected: 1891
Locality: Off Panama, Panama, Pacific
Depth (m): 155 to 232
Vessel: Albatross
  • Syntype: Garman, S. 1899. Memoirs of the Museum of Comparative Zoology at Harvard College. 24: 48, pl. 69.
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Ecology

Habitat

Habitat and Ecology

Habitat and Ecology
This is a demersal species that inhabits rocky reef areas from 25 to 305m. It probably forms schools, and lives near the bottom in deep waters (Heemstra 1995).

Systems
  • Marine
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Depth range based on 21 specimens in 1 taxon.
Water temperature and chemistry ranges based on 4 samples.

Environmental ranges
  Depth range (m): 2 - 275
  Temperature range (°C): 13.654 - 15.355
  Nitrate (umol/L): 25.187 - 33.933
  Salinity (PPS): 34.855 - 35.043
  Oxygen (ml/l): 0.373 - 1.349
  Phosphate (umol/l): 1.980 - 2.301
  Silicate (umol/l): 20.263 - 24.753

Graphical representation

Depth range (m): 2 - 275

Temperature range (°C): 13.654 - 15.355

Nitrate (umol/L): 25.187 - 33.933

Salinity (PPS): 34.855 - 35.043

Oxygen (ml/l): 0.373 - 1.349

Phosphate (umol/l): 1.980 - 2.301

Silicate (umol/l): 20.263 - 24.753
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Depth: 23 - 306m.
From 23 to 306 meters.

Habitat: demersal.
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Habitat

Salinity: Marine, Marine Only

Inshore/Offshore: Inshore, Inshore Only

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

Habitat: Reef (rock &/or coral), Reef and soft bottom, Reef associated (reef + edges-water column & soft bottom), Soft bottom (mud, sand,gravel, beach, estuary & mangrove), Sand & gravel

FishBase Habitat: Demersal
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Environment

demersal; marine; depth range 23 - 306 m (Ref. 9342)
  • Heemstra, P.C. 1995 Serranidae. Meros, serranos, guasetas, enjambres, baquetas, indios, loros, gallinas, cabrillas, garropas. p. 1565-1613. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9342)   http://www.fishbase.org/references/FBRefSummary.php?id=9342&speccode=8727 External link.
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Trophic Strategy

Feeding

Feeding Group: Planktivore

Diet: zooplankton, pelagic fish eggs, pelagic fish larvae
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Life History and Behavior

Reproduction

Reproduction

Egg Type: Pelagic, Pelagic larva
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Molecular Biology and Genetics

Molecular Biology

Barcode data: Hemanthias signifer

The following is a representative barcode sequence, the centroid of all available sequences for this species. 

 
There is 1 barcode sequence available from BOLD and GenBank.   Below is the sequence of the barcode region Cytochrome oxidase subunit 1 (COI or COX1) from a member of the species.  See the BOLD taxonomy browser for more complete information about this specimen.  Other sequences that do not yet meet barcode criteria may also be available.
 
MFC189-08|MFC189|Hemanthias signifer| ------------------------------------------CTTTATCTAGTATTTGGTGCTTGAGCTGGGATAGTAGGCACAGCCCTA---AGTCTGCTCATCCGAGCAGAGCTTAGCCAACCCGGGGCCCTCCTGGGCGAT---GACCAGATCTATAATGTGATTGTTACAGCACACGCTTTTGTAATAATCTTCTTTATAGTAATGCCAATTATAATCGGAGGATTTGGCAACTGACTTATCCCACTAATA---ATCGGCGCCCCTGACATAGCATTCCCTCGGATAAATAACATAAGCTTCTGACTTCTCCCTCCCTCTTTCCTACTTCTTCTTGCCTCTTCCGGAGTTGAAGCCGGCGCAGGGACTGGTTGAACCGTATATCCCCCTCTAGCTGGTAACTTAGCCCACGCAGGAGCATCAGTTGACCTT---ACAATCTTCTCTCTTCATTTAGCAGGCATTTCCTCCATTTTAGGGGCCATCAACTTTATCACCACCATTATTAACATAAAACCCCCCTCTATTTCTCAGTACCAAACACCGTTATTTGTGTGAGCTGTTTTAATTACTGCCGTCCTCCTTCTACTGTCACTCCCAGTCCTAGCTGCA---GGCATTACAATGCTTCTTACGGACCGAAATCTAAACACCTCCTTCTTTGACCCCGCAGGAGGGGGGGACCCCATCCTTTACCAACACCTA-------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------  
-- end --

Download FASTA File
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Statistics of barcoding coverage: Hemanthias signifer

Barcode of Life Data Systems (BOLDS) Stats
Public Records: 1
Species: 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
Smith-Vaniz, B, Robertson, R., Dominici-Arosemena, A., Molina, H., Salas, E., Guzman-Mora, A.G.

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

Justification
This species is widespread in the Eastern Pacific, and is found in deeper waters. There are no major threats known, and no current indication of widespread population decline. It is listed as Least Concern.
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Conservation status

IUCN Red List: Not evaluated / Listed

CITES: Not listed
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Population

Population
There is no population information available for this species.

Population Trend
Unknown
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Threats

Threats

Major Threats
There are no major threats known for this species. This species is of minor commercial importance (Heemstra, 1995).
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Least Concern (LC)
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Management

Conservation Actions

Conservation Actions
There are no known species specific conservation measures. However, this species' distribution includes a number of Marine Protected Areas in the Eastern Pacific region.
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Relevance to Humans and Ecosystems

Benefits

Importance

fisheries: minor commercial
  • Heemstra, P.C. 1995 Serranidae. Meros, serranos, guasetas, enjambres, baquetas, indios, loros, gallinas, cabrillas, garropas. p. 1565-1613. In W. Fischer, F. Krupp, W. Schneider, C. Sommer, K.E. Carpenter and V. Niem (eds.) Guia FAO para Identification de Especies para lo Fines de la Pesca. Pacifico Centro-Oriental. 3 Vols. FAO, Rome. (Ref. 9342)   http://www.fishbase.org/references/FBRefSummary.php?id=9342&speccode=8727 External link.
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