Nauru country information

Common names: [No common name]
Occurrence: native
Salinity: marine
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments:
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/nr.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Collette, B.B. and C.E. Nauen, 1983
National Database:

Common names from other countries

Germon, Atún blanco, Тунец длинноперый, ... more

Классификация / Names народные названия | синонимы | Catalog of Fishes(род, виды) | ITIS | CoL | WoRMS | Cloffa

> Scombriformes (Mackerels) > Scombridae (Mackerels, tunas, bonitos) > Scombrinae
Etymology: Thunnus: Greek, thynnos = tunna (Ref. 45335).
More on author: Bonnaterre.

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

морской; мигрирует в океане (Ref. 51243); пределы глубины 0 - 600 m (Ref. 168). Subtropical; 10°C - 25°C (Ref. 168); 60°N - 50°S, 180°W - 180°E

распространение страны | регионы FAO | Ecosystems | места находок | Point map | интродукции | Faunafri

Cosmopolitan in tropical and temperate waters of all oceans including the Mediterranean Sea but not at the surface between 10°N and 10°S. Western Pacific: range extend in a broad band between 40°N and 40°S (Ref. 9684). Often confused with juvenile Thunnus obesus which also have very long pectorals but with rounded tips. Highly migratory species.

Length at first maturity / Size / Вес / Возраст

Maturity: L_m 85.2, range 83 - ? cm
Max length : 140 cm FL самец/пол неопределен; (Ref. 3669); common length : 100.0 cm FL самец/пол неопределен; (Ref. 9684); наибольший вес (опубликованные данные): 60.3 kg (Ref. 40637); наибольший возраст (опубликованны данные): 9 годы (Ref. 72462)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 11 - 14; членистые (мягкие) лучи спинного плавника (общее число) : 12 - 16; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 11 - 16. Anterior spines much higher than posterior spines giving the fin a strongly concave outline. Interpelvic process small and bifid. Body with very small scales. Pectoral fins remarkably long, about 30% of fork length or longer in 50 cm or longer fish. Ventral surface of liver striated and the central lobe is largest.

An epipelagic and mesopelagic, oceanic species, abundant in surface waters of 15.6° to 19.4°C; deeper swimming, large albacore are found in waters of 13.5° to 25.2°C; temperatures as low as 9.5°C may be tolerated for short periods (Ref. 168). Known to concentrate along thermal discontinuities (Ref. 168). Form mixed schools with skipjack tuna (Katsuwonus pelamis), yellowfin tuna (Thunnus albacares) and bluefin tuna (T. maccoyii), schools may be associated with floating objects, including sargassum weeds (Ref. 168). Feed on fishes, crustaceans and squids. Eggs and larvae are pelagic (Ref. 6769). Sexual maturity reached at 90 cm (Ref. 36731). Highly appreciated and marketed fresh, smoked, deep frozen or canned. Eaten steamed, broiled, fried and microwaved (Ref. 9987). Also Ref. 1762, 1798, 1804. Angling: Largely caught offshore, where the waters are mild and blue. Albacore favor those areas where cooler water interfaces with warmer water. They are caught with live of dead baitfish such as mullet, sauries, squid, herring, anchovies, sardines, and other small fish. Albacore strike hard and make powerful runs (Ref. 84357).

Life cycle and mating behavior Maturities | размножение | Spawnings | Egg(s) | Fecundities | личинки

The sex ratio in catches is about 1:1 for immature individuals, but males predominate among mature fishes, which is possibly due to both differential mortality of sexes and differential growth rate after maturity.

Основная ссылка Upload your references | ссылки | координатор : Collette, Bruce B. | соавторы

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)

Не вызывающий беспокойства (LC) ; Date assessed: 15 January 2021

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

Harmless

Использование человеком

рыболовство: важный объект промысла; объект спортивного рыболовства: да

FAO(рыболовство: production, Видовой профиль; publication : search) | FIRMS (Stock assessments) | FishSource | Sea Around Us

дополнительная информация

Trophic ecology
пищевые объекты
Diet compositions
Food consumptions
Food rations
хищники

Ecology
экология
Home ranges

Population dynamics
Growths
Max. ages / sizes
Length-weight rel.
Length-length rel.
Размерный состав
Mass conversions
Recruitments
Abundances

Life cycle
размножение
Maturities
Fecundities
Spawnings
Spawning aggregations
Egg(s)
Egg developments
личинки
динамика численности личинок

Distribution
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Ecosystems
места находок
интродукции
BRUVS - Videos

Anatomy
Gill areas
мозг
Otoliths

Physiology
Body compositions
Nutrients
Oxygen consumptions
Swimming type
Swimming speeds
Visual pigment(s)
звуки, издаваемые рыбами
Diseases / Parasites
Toxicities (LC50s)

Genetics
генетика
Electrophoreses
Heritabilities

Human related
Aquaculture systems
особенности рыбоводства
степень растяжения
Ciguatera cases
Stamps, coins, misc.

Outreach
соавторы

Taxonomy
народные названия
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морфология
морфометрия
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References
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инструменты

Специальные отчеты

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Estimates based on models

Preferred temperature (Ref. 115969): 8.8 - 21.2, mean 15.1 (based on 784 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01738 (0.01428 - 0.02115), b=3.01 (2.97 - 3.05), in cm Total Length, based on LWR estimates for this species (Ref. 93245).

Trophic level (Ref. 69278): 4.3 ±0.2 se; based on diet studies.

устойчивость к внешним воздействиям (Ref. 120179): средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (K=0.13-0.18; tm=4-6; tmax=10; Fec=2 million).

Prior r = 0.43, 95% CL = 0.28 - 0.64, Based on 15 full stock assessments.

Fishing Vulnerability (Ref. 59153): High to very high vulnerability (71 of 100).

Climate Vulnerability (Ref. 125649): Moderate vulnerability (42 of 100).

Категория цены (Ref. 80766): High.

Thunnus alalunga (Bonnaterre, 1788)