You can sponsor this page

Polyodon spathula (Walbaum, 1792)

Mississippi paddlefish
Загрузить свой Фото и Видео
Pictures | Stamps, coins, misc. | Изображение на Google
Image of Polyodon spathula (Mississippi paddlefish)
Polyodon spathula
Picture by Moreau, J.


United States (contiguous states) country information

Common names: Mississippi paddlefish, Paddlefish
Occurrence: native
Salinity: freshwater
Abundance: | Ref:
Importance: commercial | Ref: Missouri Department of Conservation, 2008
Aquaculture: | Ref:
Regulations: | Ref:
Uses: gamefish: yes;
Comments: Known from Mississippi River basin from southwestern New York to Montana and south to Louisiana; Gulf Slope drainagaes from Mobile Bay in Alabama, to Galveston Bay in Texas. Formerly in Great Lakes basin, probably extirpated (Ref. 86798). Also 276, 5723, 10294. Status of threat: vulnerable; status same as 1989. Criteria: 1,2 (http://fisc.er.usgs.gov/afs/) (Ref. 81264).
National Checklist:
Country Information: https://www.cia.gov/library/publications/resources/the-world-factbook/geos/us.html
National Fisheries Authority: http://www.nmfs.gov
Occurrences: Occurrences Point map
Main Ref: Page, L.M. and B.M. Burr, 2011
National Database:

Common names from other countries

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

> Acipenseriformes (Sturgeons and paddlefishes) > Polyodontidae (Paddlefishes)
Etymology: Polyodon: Greek, polys = a lot of + Greek, odous = teeth (Ref. 45335);  spathula: Polyodon, many toothed, perhaps due to the numerous gill rakers because adult paddlefish lack teeth, although young fish has many small teeth, and spathula meaning spatula, due to its elongated snout (Ref. 79012).
  More on author: Walbaum.

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

; пресноводный демерсальный; мигрирует в реке (Ref. 51243); пределы глубины 2 - ? m.   Subtropical; 10°C - 18°C (Ref. 2060); 49°N - 29°N, 112°W - 77°W (Ref. 86798)

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

North America: Mississippi River basin from southwestern New York to Montana and south to Louisiana; Gulf Slope drainagaes from Mobile Bay in Alabama, to Galveston Bay in Texas, USA. Formerly in Great Lakes basin, probably extirpated. At least one country reports adverse ecological impact after introduction.

Size / Вес / Возраст

Maturity: Lm ?  range ? - ? cm
Max length : 221 cm TL самец/пол неопределен; (Ref. 86798); common length : 120 cm TL самец/пол неопределен; (Ref. 12193); наибольший вес (опубликованные данные): 90.7 kg (Ref. 3221); наибольший возраст (опубликованны данные): 55 годы (Ref. 46974)

Краткое описание определительные ключи | морфология | морфометрия

Snout long, canoe-paddle-shaped; gill cover with large, fleshy, pointed flap (Ref. 86798).

биология     глоссарий (например epibenthic)

Usually inhabits water deeper than 1.2 m in slow-flowing large rivers, lakes, and impoundments (Ref. 86798). Feeds on plankton. The extended upper jaw (= paddle) may help to channel plankton into the mouth. Threatened due to over harvesting, habitat loss and pollution (Ref. 58490).

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

Основная ссылка Upload your references | ссылки | координатор | соавторы

Page, L.M. and B.M. Burr, 2011. A field guide to freshwater fishes of North America north of Mexico. Boston : Houghton Mifflin Harcourt, 663p. (Ref. 86798)

Статус Красного Списка МСОП (Ref. 130435)

  уязвимый; см. Красный Список МСОП (VU) (A2cd); Date assessed: 14 September 2019

CITES (Ref. 128078)


CMS (Ref. 116361)

Not Evaluated

Угроза для людей





Использование человеком

рыболовство: коммерческий; аквариум: общественные аквариумы
FAO(рыболовство: production, Видовой профиль; 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
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

Скачать в формате XML

ресурсы в Интернет

Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 1.2500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00430 - 0.00969), b=3.09 (2.98 - 3.20), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  3.1   ±0.0 se; based on diet studies.
устойчивость к внешним воздействиям (Ref. 120179):  низкий, минимальное время удвоения популяции 4.5-14 лет (tm=6-9; tmax=30).
Fishing Vulnerability (Ref. 59153):  Very high vulnerability (90 of 100).
Категория цены (Ref. 80766):   Unknown.