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Pristis pectinata Latham, 1794

Smalltooth sawfish
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Native range | All suitable habitat | Point map | Year 2050
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Pristis pectinata   AquaMaps   Data sources: GBIF OBIS
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Brazil country information

Common names: Araguaguá, Araguaguai, Cação serra
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: | Ref:
Aquaculture: | Ref:
Regulations: | Ref:
Uses: no uses
Comments: Also Ref. 26340, 27549.
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: Robins, C.R. and G.C. Ray, 1986
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) > Rhinopristiformes (Shovelnose rays) > Pristidae (Sawfishes)
Etymology: Pristis: Greek, pristis = saw (Ref. 45335).

Issue
This species was not reported since 1902 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 year (Ref. 116564).

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

морской; пресноводный; солоноватоводный демерсальный; амфидромный (Ref. 51243); пределы глубины 10 - 88 m (Ref. 114953).   Subtropical; 16°C - 30°C

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

Atlantic and South-West Indian Oceans; once widespread.

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 760 cm TL самец/пол неопределен; (Ref. 6871); common length : 550 cm TL самец/пол неопределен; (Ref. 6871); наибольший вес (опубликованные данные): 350.0 kg (Ref. 3164)

Краткое описание определительные ключи | морфология | морфометрия

Diagnosis: Pristis pectinata is easily separable from Pristis perotteti by the following characters: its first dorsal fin originates about over the origin of its pelvic fins vs. considerably in front of origin of pelvic fins in P. perotteti; its caudal fin is much shorter, but broader relative to the length of the fin, with lower lobe only faintly indicated; its rostral teeth are numerous, 23 or more on each side vs. not more than 20 in P. perotteti; its saw is relatively somewhat shorter; its second dorsal fin has the posterior margin much less deeply concave; and its pectoral fins are smaller (Ref. 6902, 81624). Pristis pectinata agrees with Pristis pristis in the shape of its caudal fin and in the position of the first dorsal fin relative to the pelvic fins, but it can be separated from P. pristis by its more numerous rostral teeth, 23 or more on each side vs. less than 20 (Ref. 6902, 81624).

биология     глоссарий (например epibenthic)

Inshore and intertidal species, but may cross deep water to reach offshore islands; also ascends rivers and can tolerate fresh water (Ref. 9859). Commonly seen in bays, lagoons, estuaries, and river mouths. Also found in rivers and lakes (Ref. 12951). Feeds on fishes and shellfishes (Ref. 58784). Ovoviviparous (Ref. 50449). Gravid females reportedly carry as many as 20 embryos, which require a year of gestation (Ref. 27549). Uses its saw to stir the bottom when feeding on bottom invertebrates and to kill pelagic fishes (Ref. 9859). Utilized as a food fish; oil is used to make medicine, soap and in leather tanning (Ref. 6871). Adults stuffed for decoration (Ref. 6871). Reported to be aggressive towards sharks when kept in tanks (Ref. 12951). This species is currently protected in several areas as populations are under severe threat (Ref. 81624).

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

Ovoviviparous, with gravid females containing about 15-20 embryos (Ref. 3163). Embryos feed solely on yolk (Ref. 50449). Gives birth in shallow bays and estuaries (Ref. 12951). Size at birth 61 cm (Ref. 12951).

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

Last, P.R. and J.D. Stevens, 1994. Sharks and rays of Australia. CSIRO, Australia. 513 p. (Ref. 6871)

Статус Красного Списка МСОП (Ref. 130435)

  В критическом состоянии (CR) (A2cd); Date assessed: 09 March 2022

CITES (Ref. 128078)


Угроза для людей

  Traumatogenic (Ref. 6871)




Использование человеком

рыболовство: не имеет хозяйственного значения; объект спортивного рыболовства: да
FAO(Publication : search) | FishSource |

дополнительная информация

Trophic ecology
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Diet compositions
Food consumptions
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Ecology
экология
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Length-weight rel.
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Размерный состав
Mass conversions
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Life cycle
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Egg(s)
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Visual pigment(s)
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Estimates based on models

Preferred temperature (Ref. 115969): 22.9 - 28, mean 27.1 (based on 776 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5234   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00407 (0.00161 - 0.01032), b=3.02 (2.80 - 3.24), in cm Total Length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).
Trophic level (Ref. 69278):  4.5   ±0.80 se; based on food items.
устойчивость к внешним воздействиям (Ref. 120179):  низкий, минимальное время удвоения популяции 4.5-14 лет (Fec=15).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (84 of 100).
Категория цены (Ref. 80766):   Medium.