Phaeophyceae |
Fucales |
Sargassaceae
Environment: milieu / climate zone / Mức độ sâu / distribution range
Sinh thái học
. Tropical
Indian Ocean: from the Arabian Sea, including the Persian Gulf and the Red Sea south to Mauritius, east to India; in the Bay of Bengal, south to Dampier Archipelago, Western Australia, including Andaman and Nicobar Islands; Pacific Ocean: from China going to the South China Sea, south to Queensland, Australia, east to the Samoan Archipelago, including New Caledonia, Solomon Islands and Republic of Palau.
Length at first maturity / Bộ gần gũi / Weight / Age
Chín muồi sinh dục: Lm ? range ? - ? cm
Holdfast small, discoid; stem short, about 5 mm long, cylindrical to slightly compressed, brownish, finely villose, simple or sometimes branched. Primary branches smooth and strongly flattened, especially at basal portions, 3 to 4 mm at broadest portions. Secondary laterals distichous, alternately arranged along primary branches, up to 18 cm long. Leaves of vegetative materials large, linear-lanceolate, up to 7 cm long, 1.2 cm wide, with very short stalks; those of fertile materials much smaller and reduced, especially toward apical portions, linear to linear-lanceolate. Base of leaves acute to cuneate; margin irregularly serrate-dentate; apex mainly obtuse to acute, those of the smaller leaves mainly acute; midrib distinct almost up to apex. Cryptostomata slightly elevated and scattered on blade, those on small leaves at terminal branches with tendency to form rows along both sides of midrib; those on female receptacles more numerous and distinctly elevated, giving the receptacles a lumpy appearance. Vegetative plants with larger vesicles, 1 to 5 mm wide; those of fertile materials smaller and variable in size, the larger ones 4 to 5 mm long and 2 to 3 mm wide, smaller ones 1.5 mm long and 1 mm wide; most vesicles with cylindrical stalks, mainly 1 mm long, those on female plants longer (up to 4 mm) and stalks flattened; apices of vesicles mainly plain or occasionally with teeth or spines. Plants dioecious. Male receptacles paniculate; receptacular branches up to 3 times unequally dichotomously branched, branches terete but highly warty. Female receptacles form dense cymes; receptacular branches simple or shortly branched, almost of same length, apices slightly compressed, margins and tips with few teeth or spines.
Primary branches up to 80 cm in length (Ref. 80758).
Important source of alginate mainly used as emulsifying, stabilizing and gelling agents in food products; contains iodine, protein, vitamin C, and minerals such as Ca, K, Mg, Na, Cu,Zn, S, P, Mn; used as medicine: goiter, glandular troubles, antibacterial, antitumor; source of tannins and phenols; also
used for animal feed and fertilizer (Ref. 80758).
Life cycle and mating behavior
Chín muồi sinh dục | Sự tái sinh sản | Đẻ trứng | Eggs | Sự sinh sản | Larvae
Guiry, M.D. and G.M. Guiry 2009 AlgaeBase. World-wide electronic publication, National University of Ireland, Galway. http://www.algaebase.org; searched on 14 April 2009. (Tài liệu tham khảo 80701)
IUCN Red List Status
(Tài liệu tham khảo 130435: Version 2025-1)
CITES status (Tài liệu tham khảo 108899)
Not Evaluated
CMS (Tài liệu tham khảo 116361)
Not Evaluated
Threat to humans
Harmless (Tài liệu tham khảo 80758)
Human uses
Các nghề cá: Tính thương mại
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Các công cụ
Thêm thông tin
Sinh thái dinh dưỡngFood items (preys)
Thành phần thức ăn
Thành phần thức ăn
Các động vật ăn mồi
Population dynamicsSự sinh trưởng
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Sự phong phú
Life cycleSự tái sinh sản
Chín muồi sinh dục
Sự sinh sản
Đẻ trứng
Eggs
Egg development
Larvae
PhysiologyThành phần ô-xy
Human RelatedStamps, coins, misc.
Các nguồn internet
Estimates based on models
