Scaphopoda |
Gadilida |
Gadilidae
Environment: milieu / climate zone / пределы глубины / distribution range
экология
; пределы глубины 10 - 15 m (ссылка 3442). Tropical
Distribution
страны | регионы FAO | Ecosystems | места находок | интродукции
Western Atlantic: Colombia, Brazil and north coast of South America.
Length at first maturity / Size / Weight / Возраст
половая зрелость: Lm ?  range ? - ? cm Max length : 0.6 cm SHL самец/пол неопределен; (ссылка 3442); common length : 5.5 cm SHL самец/пол неопределен; (ссылка 3442)
Shell is small, slender, moderately curved, strong and white. Increase in shell diameter is very slight with no conspicuous swelling. Greatest diameter located near the anterior aperture. Apical shell nearly circular, cut by four deep notches, forming four triangular lobes: lobe on convex side is slightly longer, lobe on concave side truncated and two lateral lobe. External surface appears smooth under optical microscope but papillated at higher magnifications. Anterior aperture subcircular, slightly depressed and oblique.
Depth range based on type locality (Ref. 3442); to be replaced with a better reference.
Life cycle and mating behavior
половая зрелость | размножение | нерест | Eggs | Fecundity | Larvae
Members of the class Scaphopoda are gonochoric. Fertilization occurs in the mantle cavity. Life cycle: Eggs hatch into free-swimming lecithotrophic trochophore larvae, succeeded by shelled veligers.
Основная ссылка
ссылки | координатор | соавторы
Caetano, C.H.S. and R.S. Absalao 2005 A nrw species of the genusPolyschides Pilsbry and Sharp, 1898 (Mollusca, Scaphopoda, Gadilidae) from Brazilian waters. Zootaxa 871:1-10. (ссылка 3442)
Статус Красного Списка МСОП
(ссылка 130435: Version 2025-1)
Статус СИТЕС (ссылка 108899)
Not Evaluated
CMS (ссылка 116361)
Not Evaluated
Угроза для людей
Harmless
Использование человеком
| FishSource |
инструменты
дополнительная информация
Trophic EcologyFood items (preys)
состав пищи
потребление пищи
хищники
Population dynamicsрост
Max. ages / sizes
Length-weight rel.
Length-length rel.
Размерный состав
Mass conversion
численность
Life cycleразмножениеполовая зрелостьFecundityнерестEggsРазвитие икрыLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
ресурсы в Интернет
Estimates based on models
Fishing Vulnerability
Low vulnerability (10 of 100).