Florideophyceae |
Gracilariales |
Gracilariaceae
Environment: milieu / climate zone / пределы глубины / distribution range
экология
. Tropical
Pacific Ocean: Philippines.
Length at first maturity / Size / Weight / Возраст
половая зрелость: Lm ?  range ? - ? cm
Thalli reddish brown to purple in colour, erect, loosely branched, attached to shells and debris by a very small discoid holdfast. Branches 0.8 to 1.9 mm in diameter, terete throughout, slender, gradually tapering towards filiform apices, distinctly constricted at the base; soft and easily broken when fresh. Cortex composed of 1 or 2 layers of spherical to cuboidal cells, 9x4.75 to 13x8.25 μm in size. Medullary cells large, 52 to 746 μm in diameter; cell walls 3 to 4.5 μm thick; cell size transition from medulla to cortex abrupt. Cystocarps semi-globose, unconstricted at the base and distributed on more mature branches, 0.8 to 0.9 mm in diameter. Pericarp consisting of 6 to 10 layers of cells, 103 to 188 μm thick; outermost cells round to oval and anticlinally arranged, inner layers periclinally arranged, becoming flattened towards the gonimoblast. Nutritive filaments abundant between pericarp and gonimoblast. Carpospores 15 to 20 μm in diameter, gonimoblast centre composed of few large parenchyma cells. Spermatangial cavities oval, cup-shaped to deep oval (verrucosa type) and 36.5 to 104 μm deep. Tetraspores prominent, sometimes protruding from the cortex, 26.26x18 to 39.25x31.75 μm in size. Thalli up to 54 cm in length (Ref. 80758).
Consumed by humans as food and as raw material for agar manufacture (Ref. 80758). Grows attached to pebbles, shells and stones on muddy bottoms in shallow nutrient-rich water (Ref. 80758).
Life cycle and mating behavior
половая зрелость | размножение | нерест | Eggs | Fecundity | Larvae
Основная ссылка
ссылки | координатор | соавторы
Guiry, M.D. and G.M. Guiry. 2009. (ссылка 80701)
Статус Красного Списка МСОП
(ссылка 130435: Version 2024-2)
Статус СИТЕС (ссылка 108899)
Not Evaluated
CMS (ссылка 116361)
Not Evaluated
Угроза для людей
Использование человеком
рыболовство: коммерческий
| 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 cycleразмножение
половая зрелость
Fecundity
нерест
Eggs
Развитие икры
Larvae
PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
ресурсы в Интернет
Estimates based on models