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Tylosurus crocodilus (Péron & Lesueur, 1821)

Hound needlefish
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Native range | All suitable habitat | Point map | Year 2050
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Tylosurus crocodilus   AquaMaps   Data sources: GBIF OBIS
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Image of Tylosurus crocodilus (Hound needlefish)
Tylosurus crocodilus
Picture by Baur, J.-C.


Seychelles country information

Common names: Aiguille
Occurrence: native
Salinity: marine
Abundance: scarce (very unlikely) | Ref: Smith, J.L.B. and M.M. Smith, 1963
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Including the Aldabra and the Farquhar islands (Ref. 33390). Also Ref. 5757, 3130.
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/se.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Smith, J.L.B. and M.M. Smith, 1963
National Database:

Common names from other countries

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

> Beloniformes (Needle fishes) > Belonidae (Needlefishes)
Etymology: Tylosurus: Greek, tylos = callus + Greek, oura = tail (Ref. 45335).
  More on authors: Péron & Lesueur.

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

морской ассоциированный с рифами; мигрирует в океане (Ref. 51243); пределы глубины 0 - 13 m (Ref. 58302).   Tropical; 26°C - 29°C (Ref. 4959); 21°N - 1°N

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

Indo-West Pacific: Red Sea and South Africa (Ref. 5317) and Persian Gulf (Ref. 68964) to French Polynesia (Ref. 6784), north to Japan (Ref. 559), south to New South Wales, Australia (Ref. 33390). Replaced by Tylosurus crocodilus fodiator in the eastern Pacific. Western Atlantic: New Jersey, USA to Brazil (Ref. 7251). Eastern Atlantic: Fernando Poo, Cameroon, Liberia, and Ascension Island (Ref. 5757); from Senegal and Guinea (Ref. 28587); and Cape Verde (Ref. 27000). Recorded from the Mediterranean Sea (Ref. 83387).

Length at first maturity / Size / Вес / Возраст

Maturity: Lm 51.7, range 50 - 55 cm
Max length : 150 cm TL самец/пол неопределен; (Ref. 30573); common length : 90.0 cm SL самец/пол неопределен; (Ref. 9682); наибольший вес (опубликованные данные): 6.4 kg (Ref. 40637)

Краткое описание определительные ключи | морфология | морфометрия

колючие лучи спинного плавника (общее число) : 0; членистые (мягкие) лучи спинного плавника (общее число) : 21 - 24; колючие лучи анального плавника: 0; членистые (мягкие) лучи анального плавника: 19 - 22; позвонки: 75 - 80. This species with is distinguished by the following characters: body elongate, circular in cross-section; D 21-24 with anterior rays forming a relatively high lobe, 5.4-10.6 body length (excluding the head and caudal fin); dorsal fin origin about equal with or slightly in front to anal fin origin; A 19-22 with anterior rays forming a relatively high lobe, in 5.5-8.0 in BL; pectoral-fin rays 13 to 15 (usually 14 or 15); 270-340 predorsal scales; 75-80 vertebrae; jaws extremely long, forming a stout beak armed with very sharp teeth; no gill rakers absent; caudal fin deeply emarginate, the lower lobe much longer than the upper one and the caudal peduncle with a distinct, black lateral keel; body colour dark bluish green above, silvery below; juveniles (to 20 cm body length) with elevated black lobe in posterior part of dorsal fin which is lost with growth; scales and bones green (Ref. 9682, 90102).

биология     глоссарий (например epibenthic)

A pelagic species (Ref. 26340) found over lagoon and seaward reefs. Solitary or in small groups. Feeds on fishes (Ref. 11889). Oviparous (Ref. 205). Eggs may be found attached to objects in the water by tendrils on the egg's surface (Ref. 205). Feared by fishers because they can cause puncture wounds with their sharp snouts when jumping out of the water, e.g. when alarmed or attracted to lights at night. Although sold fresh and considered a good food fish, its market is limited due to the green-colored flesh (Ref. 5217). Widespread in tropical Indo-Pacific, divisible in two subspecies (Ref 90102). Caught by casting or trolling surface or near-surface lures; also with purse seines and drift nets (Ref. 9682).

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

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

Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)

Статус Красного Списка МСОП (Ref. 130435)


CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Traumatogenic (Ref. 4690)




Использование человеком

рыболовство: коммерческий; объект спортивного рыболовства: да
FAO(рыболовство: production; publication : search) | 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
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
References
ссылки

инструменты

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Estimates based on models

Preferred temperature (Ref. 115969): 27.1 - 29.2, mean 28.5 (based on 1591 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5078   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00093 (0.00058 - 0.00150), b=3.14 (3.01 - 3.27), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  4.4   ±0.4 se; based on diet studies.
устойчивость к внешним воздействиям (Ref. 120179):  средний (среднего размера), минимальное время удвоения популяции 1.4-4.4 года (Preliminary K or Fecundity.).
Prior r = 0.57, 95% CL = 0.38 - 0.86, Based on 1 data-limited stock assessment.
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (47 of 100).
Climate Vulnerability (Ref. 125649):  Very high vulnerability (91 of 100).
Категория цены (Ref. 80766):   Medium.