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
Ekologi
laut; air tawar; payau dasar (demersal); oceanodromus (Ref. 51243); kisaran kedalaman 25 - ? m (Ref. 114953). Subtropical; 35°N - 40°S, 120°W - 160°E (Ref. 114953)
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 / Weight / umur
Maturity: Lm 300.0, range 300 - 300 cm
Max length : 750 cm TL jantan/; (Ref. 57708); common length : 250 cm TL jantan/; (Ref. 4429); Umur maksimum dilaporkan: 30 Tahun (Ref. 57533)
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).
Ovoviviparous, embryos feed solely on yolk (Ref. 50449).
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)
Status IUCN Red List (Ref. 130435: Version 2024-1)
ancaman kepada manusia
Harmless
penggunaan manusia
Perikanan: nilai komersial kecil
Alat, peralatan
laporan khas
muat turun XML
Sumber internet
Estimates based on models
Preferred temperature (Ref.
123201): 20.1 - 29.1, mean 27.8 °C (based on 1796 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5234 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00490 (0.00195 - 0.01230), 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.
Daya lenting (Ref.
120179): Rendah, Waktu penggandaan populasi minimum 4.5 - 14 tahun (tmax=44; Fec=1-20;).
Fishing Vulnerability (Ref.
59153): Very high vulnerability (79 of 100).
Nutrients (Ref.
124155): Calcium = 8.73 [1.69, 40.68] mg/100g; Iron = 0.523 [0.130, 1.505] mg/100g; Protein = 20.3 [18.1, 22.3] %; Omega3 = 0.173 [0.070, 0.432] g/100g; Selenium = 37 [10, 113] μg/100g; VitaminA = 2.11 [0.72, 6.06] μg/100g; Zinc = 0.367 [0.179, 0.703] mg/100g (wet weight);
