Pygospio elegans Claparède, 1863

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Classification / Names প্রচলিত নাম সমূহ | প্রতিনাম সমূহ | CoL | ITIS | WoRMS

Polychaeta | Spionida | Spionidae

Environment: milieu / climate zone / গভীরতার পরিসীমা / distribution range বাস্তুসংস্থান

; গভীরতার পরিসীমা 5 - 40 m (সূত্র 125328). Tropical; 81°N - 34°S, 119°E - 42°E

Distribution দেশ সমূহ | এফ এ ও এলাকাসমূহ | বাস্তুতন্ত্র | দৃষ্টিগোচর | প্রচলন

Arctic, Pacific Ocean, Atlantic Ocean, Mediterranean, Black Sea and Western Indian Ocean. Polar to subtropical.

Length at first maturity / আকৃতি / Weight / Age

পরিপক্কতা : L_m ? range ? - ? cm

Found in areas of sludge (Ref. 96352). This species is a suspension feeder (Ref. 96470) and a surface detritivore (Refs. 95728, 95752, 96470). Semi-mobile (Ref. 95752). Tubiculous (Ref. 112705). It is known as Zostera sp. infauna and epifauna, and sand infauna (Ref. 95819). Exhibits tolerance for extreme environmental conditions such as high exposure and low salinity (Ref. 95730).

Life cycle and mating behavior পরিপক্কতা | প্রজনন | ডিম ছাড়া | Eggs | ডিম্বধারন ক্ষমতা | Larvae

Members of the class Polychaeta are mostly gonochoric (sexual). Mating: Females produce a pheromone attracting and signalling the males to shed sperm which in turn stimulates females to shed eggs, this behavior is known as swarming. Gametes are spawned through the metanephridia or body wall rupturing (termed as "epitoky", wherein a pelagic, reproductive individual, "epitoke", is formed from a benthic, nonreproductive individual, "atoke"). After fertilization, most eggs become planktonic; although some are retained in the worm tubes or burrowed in jelly masses attached to the tubes (egg brooders). Life Cycle: Eggs develop into trocophore larva, which later metamorph into juvenile stage (body lengthened), and later develop into adults.