Grammatobothus polyophthalmus, Threespot flounder : fisheries

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Grammatobothus polyophthalmus (Bleeker, 1865)

Threespot flounder
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Grammatobothus polyophthalmus   AquaMaps   Data sources: GBIF OBIS
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Image of Grammatobothus polyophthalmus (Threespot flounder)
Grammatobothus polyophthalmus
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Pleuronectiformes (Flatfishes) > Bothidae (Lefteye flounders)
Etymology: Grammatobothus: Greek, gramma = signal, mark (Ref. 45335).
More on author: Bleeker.

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

Marine; demersal; depth range 0 - 90 m (Ref. 9824). Tropical

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

Indo-West Pacific: India and off Sri Lanka eastward to the Philippines and the northeastern coast of Australia. Range extends to Okinawa Island, Japan. Also known from the Persian Gulf (Ref. 5999).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 21.0 cm TL male/unsexed; (Ref. 9824); common length : 17.0 cm TL male/unsexed; (Ref. 9824)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 77-86; Anal spines: 0; Anal soft rays: 61 - 71. Eyed side pale brownish, with 3 large, prominent dark ocelli, 1 each above and below pectoral fin, 1 on middle of straight section of lateral line. Head and body with many small, distinct, dark spots and obscure markings along dorsal and ventral body margins. Males with 2 distinct dark markings above upper eye. Dorsal, anal, and pelvic fins on eyed side with indistinct dusky spots and markings. Caudal fin with a pair of marks behind fin base. Pectoral fin on eyed side with broad pale cross bars. Blind side pale. Body deeply ovoid, its depth 1.5 to 1.8 times in SL. Head moderately large, snout shorter than eye, profile deeply notched ahead of interorbital area. Head length3.5 to 4 times in SL. Interorbital region concave, narrow in both sexes. Both eyes on left side of head, front margin of upper eye slightly behind front margin of lower eye. Mouth moderate in size, reaching to or slightly beyond anterior margin of lower eye, length of upper jaw 2.8 to 3.4 times in head length. Teeth in both jaws uniserial. Teeth in upper jaw becoming gradually smaller posteriorly. Teeth of lower jaw about equal in size, similar to anterior teeth of upper jaw. Scales on eyed side ctenoid. Scales on blind side cycloid. Lateral line on both sides of body (Ref 42535).

Biology     Glossary (e.g. epibenthic)

Found in shallow mud, sand, and rubble bottoms of the continental shelf (Ref. 9824). Feeds on benthic animals. Marketed fresh and used in making fish meal (Ref. 9824).

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

Main reference Upload your references | References | Coordinator : Amaoka, Kunio | Collaborators

Nielsen, J.G., 1974. Bothidae. In W. Fisher and P.J.P. Whitehead (eds.) FAO species identification sheets for fishery purposes. Eastern Indian Ocean (fishing area 57) and Western Central Pacific (fishing area 71). Rome, FAO, vol. 3. pag. var. (Ref. 4896)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 05 March 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: commercial
FAO - Publication: search | FishSource |

More information

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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): 24.5 - 29, mean 28 °C (based on 1708 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.6250   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00516 - 0.01610), b=2.98 (2.83 - 3.13), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.0 se; based on diet studies.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (11 of 100).
Price category (Ref. 80766):   Very high.
Nutrients (Ref. 124155):  Calcium = 191 [86, 366] mg/100g; Iron = 1.17 [0.56, 2.11] mg/100g; Protein = 17.1 [15.8, 18.5] %; Omega3 = 0.141 [0.065, 0.291] g/100g; Selenium = 49.2 [21.8, 112.6] μg/100g; VitaminA = 34.9 [9.0, 136.7] μg/100g; Zinc = 1.07 [0.67, 1.62] mg/100g (wet weight);