Actinopteri (ray-finned fishes) > Scombriformes
(Mackerels) > Gempylidae
Etymology: Thyrsitops: Greek, thyrsites, -ou = stalk of a plant, an ornament like a pine cone borne by Bacchus + Greek, ops = appearance (Ref. 45335).
More on author: Cuvier.
Environment: milieu / climate zone / depth range / distribution range
Marine; benthopelagic; depth range 30 - 350 m (Ref. 36453). Subtropical; 15°S - 43°S, 77°W - 40°W (Ref. 6181)
Southwest Atlantic: off Rio de Janeiro (Ref. 47377), southern Brazil, Uruguay and Argentina. Southeast Pacific: off Chile.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 25 - ? cm
Max length : 40.0 cm SL male/unsexed; (Ref. 6181); common length : 25.0 cm SL male/unsexed; (Ref. 6181)
Mesobenthopelagic (Ref. 47377). Inhabits the continental slope (Ref. 6181). Feeds on small fishes (Ref. 6181) and euphausiids (Ref. 47377). Since 1980, no catches have been reported, except for 21 t caught in 1990 by Argentina (Ref. 6181). Good for smoked fish and fish and chips (Ref. 6181).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Nakamura, I. and N.V. Parin, 1993. FAO Species Catalogue. Vol. 15. Snake mackerels and cutlassfishes of the world (families Gempylidae and Trichiuridae). An annotated and illustrated catalogue of the snake mackerels, snoeks, escolars, gemfishes, sackfishes, domine, oilfish, cutlassfishes,. scabbardfishes, hairtails, and frostfishes known to date. FAO Fish. Synop. 125(15):136 p. (Ref. 6181)
IUCN Red List Status (Ref. 125652)
Threat to humans
Fisheries: minor commercial
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 123201
): 7.5 - 19.8, mean 15 °C (based on 72 cells).
Phylogenetic diversity index (Ref. 82804
= 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00708 (0.00396 - 0.01267), b=2.95 (2.79 - 3.11), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245
Trophic level (Ref. 69278
): 3.9 ±0.63 se; based on food items.
Generation time: 3.1 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4).
Fishing Vulnerability (Ref. 59153
): Low to moderate vulnerability (34 of 100).
Climate Vulnerability (Ref. 125649
): Moderate vulnerability (44 of 100).
Nutrients (Ref. 124155
): Calcium = 78.4 [40.3, 144.3] mg/100g ; Iron = 1.24 [0.73, 2.24] mg/100g ; Protein = 18.3 [15.9, 20.4] % ; Omega3 = 0.393 [0.249, 0.600] g/100g ; Selenium = 28.1 [15.1, 55.8] μg/100g ; VitaminA = 29 [11, 69] μg/100g ; Zinc = 0.821 [0.613, 1.120] mg/100g (wet weight);