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Pearsonothuria graeffei (Semper, 1868)
Blackspotted sea cucumber| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Pearsonothuria graeffei AquaMaps Data sources: GBIF OBIS |
رده بندی / Names اسامي عام | مترادف | CoL | ITIS | WoRMS
Holothuroidea | Holothuriida | Holothuriidae
Environment: milieu / climate zone / تغييرات عمق / distribution range بوم شناسي
وابسته به آب سنگ; تغييرات عمق 0 - 30 m (مرجع 122). Tropical
Distribution كشورها | مناطق سازمان خوار و بار جهاني (FAO) | Ecosystems | ظهور | معرفي
Indo-Pacific, excluding the Persian Gulf and Hawaii.
Length at first maturity / Size / Weight / سن
بلوغ: Lm ? range ? - ? cm Max length : 45.0 cm TL جنس نر / بدون خواص جنسي; (مرجع 122); common length : 35.0 cm TL جنس نر / بدون خواص جنسي; (مرجع 122); بيشينه وزن گزارش شده: 1.3 kg (مرجع 122)
توصيف مختصر ريخت شناسي
Mean live weight 700 to 1,300 g; body-wall thickness 0.4 cm. Body sub cylindrical, arched dorsally (bivium) and slightly flattened ventrally (trivium). White conical papillae sparsely distributed on bivium; podia on trivium long and large, their calcareous disc around 240 micrometer in diameter. Mouth ventral, surrounded by 25 large, black brown dots and numerous small black spots; trivium grey, also with small black spots. Spicules on dorsal and ventral tegument with pseudo-tables and rosettes; pseudo-tables consisting of large base with a large hole, and a spiny spire; rosettes numerous, those in the tegument simple, but more complicated in the dorsal papillae and ventral podia; also present around anus are rods, small plates, and tables with very spiny crown; tentacles containing a few rods and large plates derived from rosettes.
Maximum depth from Ref. 85218. Not harvested for bêche-de-mer production (Ref. 122). A coral reef species rarely found in depths of more than 25 m; mostly found on reef slopes close to the coast (Ref. 122, 85218); abundant on corals mixed with calcareous red algae. Population densities generally less than 0.005 per square meter (Ref. 122). In times of considerable irritation, this animal ejects Cuvierian tubules (Ref. 85218). Feeds on the surface of coral colonies and sponges (Ref. 101700).
Life cycle and mating behavior بلوغ | تولید مثل | تخم ریزی | Eggs | Fecundity | Larvae
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.
مآخذ اصلی
مراجع | هماهنگ كننده | همكاران
Conand, C. 1998. (مرجع 122)
وضعيت در فهرست قرمز IUCN
(مرجع 130435: Version 2024-2)
حداقل نگرانی (LC) ; Date assessed: 18 May 2010
وضعيت از نظر سايتس (مرجع 108899)
Not Evaluated
CMS (مرجع 116361)
Not Evaluated
خطر برای انسان ها
Harmless
استفاده انسانی
ماهي گيري – شيلات: از بی علاقه گی
| FishSource |
ابزارها
اطلاعات بيشتر
Trophic Ecology
بوم شناسي
Population dynamics
Life cycle
Distribution
منابع اينترنتي
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (ژنوم, نوکلئوتيد) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | Tree of Life | Wikipedia (برو, جستجو) | Zoological Record
Estimates based on models
Preferred temperature
(Ref. 115969): 26.9 - 29.3, mean 28.6 (based on 2892 cells).
جهندگی
(Ref. 69278):
متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (K=0.17).
طبقه قيمت
(مرجع 80766):
Unknown.