Grammatorcynus bilineatus, Double-lined mackerel : fisheries, gamefish

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Related species
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  Grammatorcynus
- Species in
  Scombridae
- - Classification -
- Scombrinae
- Scombridae
- Scombriformes
- Teleostei
- Chordata
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Grammatorcynus bilineatus (Rüppell, 1836)

Double-lined mackerel

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Native range

This map was computer-generated and has not yet been reviewed.

Grammatorcynus bilineatus AquaMaps Data sources: GBIF OBIS

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Image of Grammatorcynus bilineatus (Double-lined mackerel)

Grammatorcynus bilineatus
Picture by Cox, C.D.

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

Teleostei (teleosts) > Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Grammatorcynus: Greek, gramma = signal, mark + Greek, rhyngchos = snout.
More on author: Rüppell.

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

Marine; reef-associated; oceanodromous (Ref. 51243); depth range 15 - 50 m (Ref. 86942). Subtropical; 31°N - 25°S, 32°E - 175°W (Ref. 168)

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

Indian Ocean: Red Sea eastward to the Andaman Sea. Western Pacific: Ryukyu Islands to the northern coasts of Australia, including the Marshall Islands and Fiji. Often confused in the literature with Grammatorcynus bicarinatus.

Length at first maturity / Size / Weight / Age

Maturity: L_m 41.5, range 40 - 43 cm
Max length : 100.0 cm FL male/unsexed; (Ref. 9684); common length : 50.0 cm TL male/unsexed; (Ref. 5450); max. published weight: 3.5 kg (Ref. 168)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 11 - 13; Dorsal soft rays (total): 10 - 14; Anal spines: 0; Anal soft rays: 10 - 14. Mouth relatively small, upper jaw reaching about to middle of eye. Pectoral fins stout. Interpelvic process short and single. No prominent anterior corselet present. Swim bladder present. Vertebrae 14 precaudal plus 17 caudal, total 31 as in mackerel (Scomber and Rastrelliger).
Body shape (shape guide): fusiform / normal; Cross section: oval.

Inhabits open water but often seen swimming near outer reef walls or deep clear-water slopes (Ref. 48637). Found mostly in shallow reef waters where it forms large schools. Feeds on crustaceans and fishes, particularly clupeoids (Sardinella, Thrissocles), and other fishes such as Sphyraena and Balistes. Marketed canned and frozen (Ref. 9684). Its flesh is mild and pleasantly flavored, but brushed with lemon juice prior to cooking to remove the ammonia-like smell (Ref. 9684).

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

Main reference Upload your references | References | Coordinator : Collette, Bruce B. | Collaborators

Collette, B.B. and C.E. Nauen, 1983. FAO Species Catalogue. Vol. 2. Scombrids of the world. An annotated and illustrated catalogue of tunas, mackerels, bonitos and related species known to date. Rome: FAO. FAO Fish. Synop. 125(2):137 p. (Ref. 168)

IUCN Red List Status (Ref. 130435: Version 2024-2)

Least Concern (LC) ; Date assessed: 01 March 2022

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: minor commercial; gamefish: yes

FAO - Publication: search | FishSource | Sea Around Us

More information

Trophic ecology
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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 25.6 - 29.1, mean 28.2 °C (based on 632 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00955 (0.00460 - 0.01984), b=3.06 (2.89 - 3.23), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.2 ±0.69 se; based on food items.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (67 of 100).

Climate Vulnerability (Ref. 125649): Very high vulnerability (89 of 100).

Price category (Ref. 80766): Very high.

Nutrients (Ref. 124155): Calcium = 15 [8, 33] mg/100g; Iron = 0.698 [0.368, 1.368] mg/100g; Protein = 22.3 [20.9, 23.7] %; Omega3 = 0.204 [0.117, 0.367] g/100g; Selenium = 18.2 [9.1, 38.1] μg/100g; VitaminA = 47.6 [16.1, 154.0] μg/100g; Zinc = 0.491 [0.327, 0.753] mg/100g (wet weight);

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