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Calamus bajonado  (Bloch & Schneider, 1801)

Jolthead porgy
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Native range | All suitable habitat | Year 2100
This map was computer-generated and has not yet been reviewed.
Calamus bajonado   AquaMaps   Data sources: GBIF OBIS
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Image of Calamus bajonado (Jolthead porgy)
Calamus bajonado
Picture by Itriago, H.

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

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Sparidae (Porgies)
Etymology: Calamus: Greek, kalamos = reed, cane (Ref. 45335).

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 3 - 200 m (Ref. 26938).   Subtropical

Length at first maturity / Size / Weight / Age

Maturity: Lm ?, range 30 - 42 cm
Max length : 76.0 cm FL male/unsexed; (Ref. 40637); common length : 54.0 cm TL male/unsexed; (Ref. 3815); max. published weight: 10.6 kg (Ref. 4699)

Short description Morphology | Morphometrics

Dorsal spines (total): 12; Dorsal soft rays (total): 12; Anal spines: 3; Anal soft rays: 10. Blue line under each eye. Corner of mouth and isthmus have orange cast (Ref. 26938). An irregular row of small molariform teeth inside and toward the front of the three usual rows of molars at side of upper jaw; dorsal profile of head evenly convex and not very steep (Ref. 13442).

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

Western Atlantic: Rhode Island (USA), Bermuda, and northern Gulf of Mexico southward to Brazil. Most abundant in the West Indies (Ref. 9626).

Biology     Glossary (e.g. epibenthic)

Inhabits coastal waters. Found on vegetated sand bottoms and more frequently on coral bottoms. Occasionally found at depths at least 180m (Ref. 09710) and 200 m. (Ref. 26938). Large adults are usually solitary. Feeds mainly on sea urchins, (including Diadema, Ref. 13442), crabs and mollusks. Excellent food fish (Ref. 5521).

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

Main reference Upload your references | References | Coordinator | Collaborators

Robins, C.R. and G.C. Ray, 1986. A field guide to Atlantic coast fishes of North America. Houghton Mifflin Company, Boston, U.S.A. 354 p. (Ref. 7251)

IUCN Red List Status (Ref. 96402)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Reports of ciguatera poisoning (Ref. 9710)




Human uses

Fisheries: minor commercial; gamefish: yes
FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5001   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.02818 (0.01795 - 0.04426), b=2.90 (2.77 - 3.03), based on LWR estimates for species & Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.5   ±0.2 se; Based on diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (tm=3).
Vulnerability (Ref. 59153):  High vulnerability (56 of 100) .
medium
Price category (Ref. 80766):   Medium.