Caesar grunt

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Caesar grunt
Haemulon carbonarium.jpg
Scientific classification OOjs UI icon edit-ltr.svg
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Actinopterygii
Order: Perciformes
Family: Haemulidae
Genus: Haemulon
Species:
H. carbonarium
Binomial name
Haemulon carbonarium
Poey, 1860

The Caesar grunt (Haemulon carbonarium), also known as the black grunt, blacktail grunt, or redmouth grunt is a species of marine ray-finned fish, a grunt in the family Haemulidae. It is native to the western Atlantic Ocean

Contents

Description

The Caesar grunt has an oblong, compressed body with a deep, blunt-snouted head. The moderately sized mouth is horizontal and does not have very fleshy lips. It has a continuous dorsal fin, which has a slight notch at its centre. The base of soft-rayed part of the dorsal fin and of the anal fin are scaled. [2] The dorsal fin contains 12 spines and 15-16 soft rays while the anal fin has tree spines and eight soft rays. [3] The overall colour is silvery white broken by longitudinal orange-brown stripes, these are broader and more obvious above the lateral line. Also, they have a black spot at the base of their caudal fin, which is characteristic of this species. The anal, pectoral, and pelvic fins are transparent, while the caudal fin is dark. The dorsal fin is also transparent, but it has an orange-brown margin on the spiny part, while the soft-rayed part has a dark margin. The head is marked with bronze-yellow stripes and spots. The flesh on the inside of the mouth is orange. [4] This species attains a maximum total length of 36 cm (14 in), although 20 cm (7.9 in) is more typical. [3]

Distribution

The Caesar grunt is found in the western Atlantic Ocean. It is distributed from Cape Canaveral in Florida and Bermuda in the north southwards through the Bahamas, to the Gulf of Mexico including the Florida Keys, the Florida Middle Grounds, along the mainland coast from Tuxpan in Mexico along the northern coast of the Yucatan Peninsula to northwestern Cuba, and throughout the Caribbean Sea. Claims from Brazil are likely to be misidentifications. [1]

Habitat and biology

The Caesar grunt is found at depths from 2 to 30 m (6 ft 7 in to 98 ft 5 in). [1] This species is found in clear water on rocky or coral reefs and in mangroves. [5] They are social Fish which form schools, feeding nocturnally on benthic invertebrates such as crabs, gastropods, starfish and polychaetes. [4] Caesar grunt’s are oviparous, forming distinct pairs to spawn and have pelagic larvae. [3]

Systematics

The Caesar grunt was first formally described in 1860 by the Cuban zoologist Felipe Poey (1799–1891) with the type locality given as Havana. [6] The specific name carbonarius means “coal-like”, a reference to its Cuban Spanish vernacular name of Ronco carbonero, named for its dark fins. [7]

Uses

The Caesar grunt is targeted by commercial fisheries in some parts of its range, it is also caught for the aquarium trade. [1] They are caught using traps, hook-and-line, and seines, but catch statistics are not collected. They are mainly sold fresh. [8]

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References

  1. 1 2 3 4 Anderson, W.; Claro, R.; Cowan, J.; et al. (2017) [errata version of 2015 assessment]. "Haemulon carbonarium". IUCN Red List of Threatened Species . 2015: e.T194416A115335073. doi: 10.2305/IUCN.UK.2015-4.RLTS.T194416A2333639.en . Retrieved 28 March 2021.
  2. "Species: Haemulon carbonarium, Caesar grunt, Cesar grunt". Shorefishes of the Greater Caribbean online information. Smithsonian Tropical Research Institute. Retrieved 29 March 2021.
  3. 1 2 3 Froese, Rainer; Pauly, Daniel (eds.) (2019). "Haemulon carbonarium" in FishBase . December 2019 version.
  4. 1 2 "Caesar Grunt, Haemulon carbonarium". Mexican Fish. Retrieved 29 March 2021.
  5. "Caesar grunt". Antigua’s Marine Life. Retrieved 29 March 2021.
  6. Eschmeyer, William N.; Fricke, Ron & van der Laan, Richard (eds.). "Species in the genus Haemulon". Catalog of Fishes . California Academy of Sciences . Retrieved 29 March 2021.
  7. Christopher Scharpf; Kenneth J. Lazara, eds. (5 January 2021). "Order LUTJANIFORMES: Families HAEMULIDAE and LUTJANIDAE". The ETYFish Project Fish Name Etymology Database. Christopher Scharpf and Kenneth J. Lazara. Retrieved 27 March 2021.
  8. Lindeman, K.C. (2002). "Haemulidae". In Kent E. Carpenter (ed.). The living marine resources of the Western Central Atlantic. Vol. 3: Bony fishes part 2 (Opistognathidae to Molidae) (PDF). FAO Species Identification Guides for Fisheries Purposes. American Society of Ichthyologists and Herpetologists Special Publication No. 5. FAO of the U.N., Rome. pp. 1522–1550.