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Rapana - Species in
Muricidae - - Classification -
- Muricidae
- Neogastropoda
- Gastropoda
- Chordata
- Animalia
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Rapana venosa (Valenciennes, 1846)
Purple whelk| Native range | All suitable habitat | Point map | Year 2050 |
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| This map was computer-generated and has not yet been reviewed. |
| Rapana venosa AquaMaps Data sources: GBIF OBIS |
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Classification / Names প্রচলিত নাম সমূহ | প্রতিনাম সমূহ | CoL | ITIS | WoRMS
Gastropoda | Neogastropoda | Muricidae
Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range বাস্তুসংস্থান
; ঈষৎ লোনা ; গভীরতার পরিসীমা 10 - 60 m (সূত্র 83435). Tropical; 4°C - 35°C (সূত্র 88058); 41°N - 16°N, 53°E - 143°E
Distribution দেশ সমূহ | এফ এ ও এলাকাসমূহ | বাস্তুতন্ত্র | দৃষ্টিগোচর | প্রচলন
Indo-West Pacific. Introduced in the Atlantic, the Mediterranean and Black Sea.
Length at first maturity / আকৃতি / Weight / Age
পরিপক্কতা : Lm ? range ? - ? cm Max length : 16.1 cm SHH পুরুষ/ লিঙ্গ অনিধর্ারিত ; (সূত্র 83435)
Short description বহিঃ অঙ্গ সংস্থান
The species has a short-spired, heavy shell with a large inflated deep body whorl and deep umbilicus. The columella is broad, smooth, and slightly concave. Small and elongated teeth are present along the edge of the outer lip of the large ovate aperture. The external shell ornamentation has smooth spiral ribs that end in regular blunt knobs at both the shoulder and the periphery of the body whorl. In addition, fine spiral ridges are crossed by low vertical riblets. Body color is variable from gray to orange-brown and rarely blonde, with darker brown dashes on the spiral ribs. The aperture and columella vary from deep orange to yellow or off-white. Spiral, vein-like coloration, varying from black to dark blue, occasionally occurs internally, originating at the individual teeth at the outer lip of the aperture.
A large, predatory gastropod (Ref. 87893). The juvenile and adult stage of this species are preyed upon by loggerhead sea turtles (Caretta caretta) (Ref. 87893). Larvae are dispersed with water currents (Ref. 87977). This gastropod is a successful invader of marine coastal/brackish ecosystems , being tolerant to wide variations in temperature, salinity and oxygen concentration (Ref. 87992, 87996). Rapa whelks are generally encountered in areas to depths of 30 m in the Black Sea; on sandy bottoms at 15 m covered by Zostera sp. and Cymodocea nodosa meadows (Ref. 7956). Also occurs in rocky and muddy habitat (Ref. 87909). Feeds on bivalves (Ref. 87979).
Life cycle and mating behavior পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | Larvae
This species is a non-broadcast spawner. Life cycle does not include trocophore stage. Also Ref. 833.
Main reference
সূত্র সংখ্যা | সমম্বয়কারী | সহযোগী
Tan, K.S. 2000. (সূত্র 81755)
IUCN Red List Status
(সূত্র 130435: Version 2024-2)
CITES status (সূত্র 108899)
Not Evaluated
CMS (সূত্র 116361)
Not Evaluated
Threat to humans
Harmless
Human uses
মৎস্য: বাণিজ্যিক
| FishSource | আমাদের চতুর্পাশ্বের সাগর
হাতিয়ার
আরো তথ্য
ট্রফিক বাস্তুতন্ত্র
বাস্তুসংস্থান
Population dynamics
বৃদ্ধি
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
প্রাচুর্য
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
প্রাচুর্য
Physiology
অম্লজান ব্যবহার
Human Related
Stamps, coins, misc.
Outreach
সূত্র সংখ্যা
ইন্টারনেট সুত্র
BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | Fishipedia | GenBank (genome, nucleotide) | GloBI | Gomexsi | Google Books | Google Scholar | Google | PubMed | জীবন বৃক্ষ | Wikipedia (Go, অনুসন্ধান ) | জুলজিকাল রেকর্ড
Estimates based on models
Preferred temperature
(Ref. 115969): 14 - 28, mean 25 (based on 570 cells).
Prior r = 0.78, 95% CL = 0.51 - 1.17, Based on 1 full stock assessment.
Nutrients : Calcium = 126 [75, 177] mg/100g; Iron = 4.79 [1.67, 7.92] mg/100g; Protein = 15.9 [14.8, 16.9] %; Omega3 = 0.331 [0.263, 0.400] g/100g; Selenium = 57.8 [48.5, 67.2] μg/100g; VitaminA = 0 μg/100g; Zinc = 1.97 [0.92, 3.02] mg/100g (wet weight); based on nutrient studies.