Holothuroidea |
Holothuriida |
Holothuriidae
Environment: milieu / climate zone / ระดับความลึก / distribution range
นิเวศวิทยา
เกี่ยวกับหินโสโครก; ระดับความลึก 6 - 13 m (อ้างอิง 107862). Tropical; 33°N - 33°S, 28°E - 77°W (อ้างอิง 107060)
Indo-Pacific.
Length at first maturity / ขนาด / Weight / Age
วัยเจริญพันธุ์: Lm 22.0 range ? - ? cm Max length : 60.0 cm TL เพศผู้/กระเทย; (อ้างอิง 75656); common length : 35.0 cm TL เพศผู้/กระเทย; (อ้างอิง 122); น้ำหนักสูงสุดที่มีการรายงาน: 2.0 kg (อ้างอิง 75656)
Mean live weight 300 to 800 g; body-wall thickness 0.3 cm. Body very elongate, narrower anteriorly than posteriorly. Tegument very smooth. Podia and papillae randomly distributed on bivium, the podia ending in a disc of around 480 micrometer diameter; podia on bivium numerous, short and stout, distributed on the radii and interradii, their calcareous disc and around 700 micrometer in diameter. Mouth ventral, surrounded by 20 black tentacles. Anus sub dorsal. Calcareous ring with large radial pieces and triangular interradials. Cuvierian tubules very thin and long. Entirely black. Spicules on dorsal and ventral tegument with tables and buttons; tables with circular large disc, having 8 holes or more, spire with 4 pillars, and ending in a crown with large central hole; buttons regular, with 6 or 8 holes, or irregular; plates large in ventral podia, with many holes; dorsal podia also with long rods; tentacles containing few rods.
Not traditionally harvested, due to the thin tegument and presence of Cuvierian tubules, but may be confused with other commercial black species of Holothuria. A shallow water species; mostly on outer and inner reef flats, back reefs, and shallow coastal lagoons. Abundant in seagrass beds, sandy-muddy grounds with rubble or coral patches where it hides the posterior part of its body (Ref. 122). Found under rocks to avoid dessication (Ref. 125338). Mean population density can exceed 0.5 per square meter. Inshore, shallow water populations are denser (Ref. 122). Feeds by extending its anterior end from a crevice (Ref. 85218). Deposit feeder (Ref. 103183). Sieves through the substrate it ingests, feeding on the organic matter (Ref. 125532). Found in waters less than 30m. Dwells intertidally, in pools and under rocks, and on soft substrates (Ref. 129602).
Inshore, shallow-water populations are composed of smaller individuals and reproduce mostly by transversal fission. Deeper or outer reef populations are composed of larger individuals reproducing sexually (Ref. 122). Members of the class Holothuroidea are gonochoric and have only one gonad. Spawning and fertilization are both external and some exhibit brooding. Life cycle: Embryos develop into planktotrophic larvae (auricularia) then into doliolaria (barrel-shaped stage) which later metamorphose into juvenile sea cucumbers (Ref. 833).
Conand, C. 1998 Holothurians (sea cucumbers, Class Holothuroidea). p. 1157-1190. In Carpenter, K.E. and V.H. Niem (eds.) FAO Species Identification Guide for Fishery Purposes. The Living Marine Resources of the Western Central Pacific. Vol. 2. Cephalopods, crustaceans, holothurians and sharks. FAO Rome. (อ้างอิง 122)
IUCN Red List Status
(อ้างอิง 130435: Version 2025-1)
CITES status (อ้างอิง 108899)
Not Evaluated
CMS (อ้างอิง 116361)
Not Evaluated
Threat to humans
Harmless
Human uses
การประมง: การค้า
| FishSource |
เครื่องมือ
ข้อมูลเพิ่มเติม
Human RelatedStamps, coins, misc.
แหล่งที่มาจากอินเตอร์เน็ต
Estimates based on models
Preferred temperature
(Ref.
115969): 25 - 29.3, mean 28.4 (based on 3439 cells).
Prior r = 1.20, 95% CL = 0.79 - 1.80, Based on 1 full stock assessment.
Fishing Vulnerability
Low to moderate vulnerability (30 of 100).
Price category
Unknown.
