Common names from other countries
>
Scombriformes (Mackerels) >
Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Euthynnus: Greek, eu = good + Greek, thynnos = tunna (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
экология
морской; мигрирует в океане (Ref. 51243); пределы глубины 0 - 40 m (Ref. 5227). Tropical; 39°N - 16°S, 128°W - 77°W (Ref. 168)
Eastern Pacific: off San Simeon, California, USA southward to the Galapagos Islands and northern Peru. Two stray specimens collected in the Hawaiian Islands.
Size / Вес / Возраст
Maturity: Lm ? range ? - ? cm
Max length : 84.0 cm FL самец/пол неопределен; (Ref. 168); common length : 60.0 cm FL самец/пол неопределен; (Ref. 9340); наибольший вес (опубликованные данные): 9.1 kg (Ref. 168)
Краткое описание
определительные ключи | морфология | морфометрия
колючие лучи спинного плавника (общее число) : 10 - 15; членистые (мягкие) лучи анального плавника: 11 - 12; позвонки: 37. Anterior spines of first dorsal fin much higher than those mid-way, giving the fin a strongly concave outline. Interpelvic process small and bifid. Body naked except for corselet and lateral line. Swim bladder absent. A large rounded protuberances on 31st and 32nd vertebrae. Color is generally iridescent blue with black dorsal markings composed of 3 to 5 horizontal stripes. Also with variable black or dark gray spots above the pelvic fins. Occasionally with extensive longitudinal stripes of light gray on belly; some individuals have few or no belly markings.
Occurs rarely where surface temperatures fall below 23°C. Its larvae are more frequently encountered at temperatures above 26°C and are practically confined to waters within about 240 miles off the mainland. Inhabits near the surface of coastal waters and offshore waters (Ref. 11035). Form multi-species schools with Thunnus albacares and Katsuwonus pelamis. An opportunistic predator which shares feeding pattern with other tunas and probably compete for food with other species such as yellowfin tuna, common dolphin, oriental bonito, among others.
Life cycle and mating behavior
Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки
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)
Статус Красного Списка МСОП (Ref. 130435)
CITES (Ref. 128078)
Not Evaluated
Угроза для людей
Harmless
Использование человеком
рыболовство: не имеет хозяйственного значения; объект спортивного рыболовства: да
дополнительная информация
инструменты
Специальные отчеты
Скачать в формате XML
ресурсы в Интернет
Estimates based on models
Preferred temperature (Ref.
115969): 21.3 - 28.6, mean 26 (based on 34 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.6250 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01148 (0.00597 - 0.02209), b=3.08 (2.92 - 3.24), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.8 ±0.60 se; based on food items.
устойчивость к внешним воздействиям (Ref.
120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (Assuming tm=2).
Fishing Vulnerability (Ref.
59153): High vulnerability (57 of 100).
Climate Vulnerability (Ref.
125649): Very high vulnerability (88 of 100).
