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Rhencus macracanthus (Günther, 1864)

Longspine grunt
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Rhencus macracanthus
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Eupercaria/misc (Various families in series Eupercaria) > Haemulidae (Grunts) > Haemulinae
Etymology: Rhencus: ρογκοζ (s (snoring)..
More on author: Günther.

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; brackish; benthopelagic; depth range 1 - 30 m. Tropical; 24°N - 2°S, 110°W - 75°W

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

Eastern Pacific: Mexico to Ecuador.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 37.0 cm TL male/unsexed; (Ref. 55763); common length : 20.0 cm TL male/unsexed; (Ref. 55763)

Short description Identification keys | Morphology | Morphometrics

Body oblong, moderately compressed, and somewhat deep (depth contained 2.5 to 2.7 times in standard length); mouth small and terminal, its posterior end located at the same level as the anterior rim of the eye; first gill arch with 18 to 23 gill rakers; dorsal fin deeply notched, with 12 to 14 spines and 13 to 14 soft rays (XII-IV, 13-14); dorsal and anal fins with a scaly sheath, the soft portions with international scales; second anal spine much stronger and longer than third; back dark brown or gray; belly silvery; back and flanks with 4 or 5 indistinct, dark, transverse bars (sometimes absent); operculum sometimes with a small, dark spot (Ref. 55763).

Biology     Glossary (e.g. epibenthic)

Found near the littoral zone of coastal waters (Ref. 9114). Penetrates estuaries (Ref. 9114). Marketed fresh (Ref. 9114). Depth range assumed (RF).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Oviparous, distinct pairing during breeding (Ref. 205).

Main reference Upload your references | References | Coordinator | Collaborators

Tavera, J., A. Acero P. and P.C. Wainwright, 2018. Multilocus phylogeny, divergence times, and a major role for the benthic-topelagic axis in the diversification of grunts (Haemulidae). Molecular Phylogenetics and Evolution 121(2018):212-223. (Ref. 125434)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 25 May 2007

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial
FAO - Publication: search | FishSource | Sea Around Us

More information

Trophic ecology
Food items
Diet compositions
Food consumptions
Food rations
Predators
Ecology
Ecology
Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversions
Recruitments
Abundances
Life cycle
Reproduction
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
Larvae
Larval dynamics
Distribution
Countries
FAO areas
Ecosystems
Occurrences
Introductions
BRUVS - Videos
Anatomy
Gill areas
Brains
Otoliths
Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
Fish sounds
Diseases / Parasites
Toxicities (LC50s)
Genetics
Genetics
Electrophoreses
Heritabilities
Human related
Aquaculture systems
Aquaculture profiles
Strains
Ciguatera cases
Stamps, coins, misc.
Outreach
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References
References

Tools

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Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): 26.3 - 29.1, mean 28.2 °C (based on 136 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01288 (0.00809 - 0.02051), b=3.06 (2.93 - 3.19), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.5   ±0.5 se; based on size and trophs of closest relatives
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low to moderate vulnerability (27 of 100).
Price category (Ref. 80766):   Medium.
Nutrients (Ref. 124155):  Calcium = 100 [20, 195] mg/100g; Iron = 0.829 [0.431, 1.599] mg/100g; Protein = 18.2 [16.4, 20.1] %; Omega3 = 0.225 [0.100, 0.413] g/100g; Selenium = 44.2 [24.1, 80.7] μg/100g; VitaminA = 33.7 [15.0, 75.2] μg/100g; Zinc = 1.5 [1.0, 2.2] mg/100g (wet weight);