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Isogomphodon oxyrhynchus (Valenciennes, 1839)

Daggernose shark
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Native range | All suitable habitat | Point map | Year 2050
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Isogomphodon oxyrhynchus   AquaMaps   Data sources: GBIF OBIS
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Image of Isogomphodon oxyrhynchus (Daggernose shark)
Isogomphodon oxyrhynchus
Female picture by JAMARC


Brazil country information

Common names: Cação bicudo
Occurrence: native
Salinity: brackish
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Eastermost limit of the species, Maranhão State coast (Ref. 33212).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/br.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Compagno, L.J.V., 1984
National Database:

Common names from other countries

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

Пластиножаберные (акулы и скаты) (sharks and rays) > Carcharhiniformes (Ground sharks) > Carcharhinidae (Requiem sharks)
Etymology: Isogomphodon: iso-, from isos (Gr.), equal; gomphos (Gr.), nail; odon (Gr.), tooth, referring to how teeth are equally fastened, i.e., claviform and straight in both jaws. (See ETYFish);  oxyrhynchus: oxys (Gr.), sharp; rhynchus (L.), snout, referring to its elongated, pointed and narrow snout [authorship often attributed to Müller & Henle, who published Valenciennes’ description]. (See ETYFish).

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

морской; солоноватоводный демерсальный; пределы глубины ? - 15 m (Ref. 13608).   Tropical; 12°N - 20°S, 63°W - 34°W (Ref. 244)

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

Western Atlantic: Trinidad, Guyana, Suriname, French Guiana, and Brazil.

Length at first maturity / Size / Вес / Возраст

Maturity: Lm 115.0  range ? - ? cm
Max length : 160 cm TL самец/пол неопределен; (Ref. 34266); common length : 100.0 cm TL самец/пол неопределен; (Ref. 5217); наибольший возраст (опубликованны данные): 12 годы (Ref. 34266)

Краткое описание определительные ключи | морфология | морфометрия

Large number of teeth, great length of very narrow snout. Yellow-gray above and white below (Ref. 6032).

биология     глоссарий (например epibenthic)

An inshore shark found over rocky bottoms, entering estuaries and river mouths. Feeds on small schooling fishes including herring, anchovies and croakers. Viviparous, generally 4 embryos per brood; size at birth 38 to 41 cm. 244 cm record unconfirmed.

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

Distinct pairing with embrace (Ref. 205). Viviparous, placental (Ref. 50449).

Основная ссылка Upload your references | ссылки | координатор : Compagno, Leonard J.V. | соавторы

Compagno, L.J.V., 1984. FAO Species Catalogue. Vol. 4. Sharks of the world. An annotated and illustrated catalogue of shark species known to date. Part 2 - Carcharhiniformes. FAO Fish. Synop. 125(4/2):251-655. Rome: FAO. (Ref. 244)

Статус Красного Списка МСОП (Ref. 130435)

  В критическом состоянии (CR) (A2bcd); Date assessed: 01 July 2019

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

Угроза для людей

  Harmless (Ref. 244)




Использование человеком

рыболовство: рыболовство как средство для существования
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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
страны
регионы FAO
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
References
ссылки

инструменты

Специальные отчеты

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Estimates based on models

Preferred temperature (Ref. 115969): 27 - 27.8, mean 27.5 (based on 149 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 1.0000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00468 (0.00218 - 0.01003), b=3.09 (2.92 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.80 se; based on food items.
устойчивость к внешним воздействиям (Ref. 120179):  очень низкий, минимальное время удвоения популяции более 14 лет (K=0.11-0.12; tm=5-7; tmax=12; Fec=4).
Fishing Vulnerability (Ref. 59153):  High to very high vulnerability (74 of 100).
Категория цены (Ref. 80766):   Medium.