Nigeria country information

Common names: [No common name]
Occurrence: native
Salinity: brackish
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/ni.html
National Fisheries Authority:
Occurrences: Occurrences Point map
Main Ref: Stehmann, M., 1990
National Database:

Common names from other countries

Poisson-scie commun, Largetooth sawfish, Small-toothed sawfish, ... more

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

Пластиножаберные (акулы и скаты) (sharks and rays) > Rhinopristiformes (Shovelnose rays) > Pristidae (Sawfishes)
Etymology: Pristis: Greek, pristis = saw (Ref. 45335).
More on author: Linnaeus.

Issue
This species was not reported since the 19th century in the Mediterranean Sea. An award will be granted by the CIESM to any documented, reliable / verifiable evidence (published paper / Ph.D thesis / photo) reporting the species after that date (Ref. 116564).

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

морской; пресноводный; солоноватоводный демерсальный; мигрирует в океане (Ref. 51243); пределы глубины 25 - ? m (Ref. 114953). Subtropical; 35°N - 40°S, 120°W - 160°E (Ref. 114953)

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

Circumglobally in tropical and subtropical waters, entering estuaries and littoral lagoons and ascending river courses (Ref. 81284, 81624). Western Atlantic: Florida and Louisiana, USA to Brazil (Ref. 7251); eastern Atlantic: Portugal to Angola, including the western Mediterranean Sea (Ref. 4429; no report since the 19th century [Ref. 116564] ); western Pacific: northern Australia, from western Australia to Queensland (Ref. 7300); eastern Pacific: Gulf of California to Ecuador (Ref. 4429). In freshwater it can be found in rivers of West Africa (Ref. 81284), Ogowe River (Ref. 81284) and the Congo River estuary (Ref. 377, 81284).

Length at first maturity / Size / Вес / Возраст

Maturity: L_m 300.0, range 300 - 300 cm
Max length : 750 cm TL самец/пол неопределен; (Ref. 57708); common length : 250 cm TL самец/пол неопределен; (Ref. 4429); наибольший возраст (опубликованны данные): 30 годы (Ref. 57533)

Краткое описание определительные ключи | морфология | морфометрия

Diagnosis: Rostral blade with 20 or fewer pairs of rostral spines (Ref. 81624).

A euryhaline species (Ref. 57533). Inhabits inshore coastal waters to moderate depth, also around off lying islands. Found also in estuaries, lagoons, river mouths, and even freshwater. Feeds on fishes and bottom-living animals. Ovoviviparous. Apparently can reproduce in freshwater (Ref. 57533). Freshwater populations occur to about 750 km up Amazon River; populations in Lake Nicaragua may be non-migratory (Ref. 7251). Reaches sexual maturity at 8-10 years and females have litters of approximately 1-13 pups. Young spend much of their early life in rivers up to 400 km from the sea (Ref. 114953).

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

Ovoviviparous, embryos feed solely on yolk (Ref. 50449).

Основная ссылка Upload your references | ссылки | координатор : McEachran, John | соавторы

Stehmann, M., 1990. Pristidae. p. 51-54. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4429)

Статус Красного Списка МСОП (Ref. 130435)

В критическом состоянии (CR) (A2cd); Date assessed: 02 February 2022

CITES (Ref. 128078)

Appendix I: International trade banned

CMS (Ref. 116361)

Appendix I & II: Endangered migratory species conserved through agreements

Угроза для людей

Harmless

Использование человеком

рыболовство: не имеет хозяйственного значения

FAO(Publication : search) | FishSource |

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

Taxonomy
народные названия
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морфология
морфометрия
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References
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Estimates based on models

Preferred temperature (Ref. 115969): 20.1 - 29.1, mean 27.8 (based on 1796 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5234 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00501 (0.00198 - 0.01270), b=3.05 (2.83 - 3.27), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.0 ±0.60 se; based on food items.

устойчивость к внешним воздействиям (Ref. 120179): низкий, минимальное время удвоения популяции 4.5-14 лет (tmax=44; Fec=1-20;).

Fishing Vulnerability (Ref. 59153): Very high vulnerability (79 of 100).

Категория цены (Ref. 80766): Medium.

Pristis pristis (Linnaeus, 1758)