Mercierella enigmatica   (Fauvel,  1923) (Marine Worm)
Organism information awaits expert curation
Taxonomy
Kingdom:Animalia
Phylum:Annelida
Class: Polychaeta
Order:Sabellida
Family:Serpulidae

Image copyrights: Roberto Sozzani

Description
Size: Upto 20 mm long

Color: Operculum chestnut, with a white or yellow ring. Gills greenish with brown spots.

Seven thoracic segments. Branchial filaments each with six to ten stout, radioles ending in naked tips, variable in length. Operculum somewhat fig-shaped, edged with about 20 blackish chitinous spines. Opercular stalk stout, thick and triangular in section. Collar setae of two kind, (1) fine capillaries and (2) serrated setae with two longitudinal rows of teeth. Unicini with a gouge and single row of five to seven teeth. Abdominal setae are geniculate capillaries with fine blades. The tube is cylindrical and made of calcareous whitish, thin, wrinkled and bell-shaped at the entrance.

This is one of the most highly adapted species of the estuarine, backwater and mangrove environments tolerating wide variations in salinity, dissolved oxygen, pH, turbidity, etc.


Synonym (s)
Mercierella enigmatica Fauvel, 1923
Mercierella enigmatica Fauvel, 1953

Common Name (s)
Economic Importance and Threats

Ecology
Habitat:  Benthic, Demersal, Estuarine, Coastal

Biogeography


• Kerala, Ashtamudi Lake INDIA
• Kerala, Kochi Backwaters INDIA
• Kerala, Beypore Estuary INDIA
• Gujarat, Auranga Estuary INDIA
• Gujarat, Narmada Estuary INDIA
• Goa, Mandovi Estuary (Lat: 15.28) (Long: 73.52) INDIA
• Tamil Nadu, Pichavaram Mangrove Forest (Lat: 11.03) (Long: 79.78) INDIA
• Tamil Nadu, Parangipettai Coast (Lat: 11.48) (Long: 79.76) INDIA
• Kerala, Kochi Estuary INDIA (Record: 03/1974-03/1976)
• Tamil Nadu, Ennore INDIA
• Kerala, Kochi INDIA (Record: 1994, 1995)
• Kerala, Kochi, Willingdon Island INDIA
• Tamil Nadu, Pichavaram INDIA
• Tamil Nadu, Porto Novo INDIA
• Tamil Nadu, Edaiyur Backwaters (Lat: 12.56) (Long: 80.18) INDIA (Record: 04/1988-03/1989)
• Goa, Mandovi and Zuari Estuary INDIA
• Karnataka, Kali Estuary INDIA
• West Coast, Mulki Estuary INDIA
• Kerala, Korapuzha Estuary INDIA

Literature Source(s)
  • Majumdar, N (1984) On a collection of birds from Adilabad district, Andhra Pradesh Occasional paper no 65 Records of the Zoological Survey of India ZSI 23012 Available at - ZSI, Pune
  • Khan, AS and Murugesan, P (2005) Polychaete diversity in Indian estuaries Indian Journal of Marine Sciences National Institute of Science Communication And Information Resources, CSIR, New Delhi, India, in association with Indian National Science Academy, New Delhi, INDIA 34(1) 114-119 Available at - http://nopr.niscair.res.in/handle/123456789/1548
  • Kumar, RS (1995) Macrobenthos in the mangrove ecosystem of Cochin backwaters, Kerala (southwest coast of India) Indian Journal of Marine Sciences CSIR, New Delhi 24 56-61 Available at - NIO, RC Kochi
  • Parulekar, AH; Dhargalkar, VK and Singbal, SYS (1980) Benthic studies in Goa estuaries: Part III- Annual cycle of macrofaunal distribution, production and trophic relations Indian Journal of Marine Sciences 9 189-200 Available at - NIO, RC Kochi
  • Kathiresan, k (2000) A review of studies on Pichavaram mangrove, southeast India Hydrobiologia Kluwer Academic Publishers, Netherlands 430 108-205 Available at - NCL, Pune
  • Srikrishnadhas, B; Murugesan, P and Khan, SA (1998) Polychaetes of Parangipettai coast Annamalai University, Parangipettai 110 pp Available at - NIO, Goa
  • Society for the Management of European Biodiversity Data (2009) World Register of Marine Species (WoRMS) Available at - http://www.marinespecies.org
  • Pillai, NGK (2001) On some benthic polychaetes from Cochin Estuary Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 43(1&2) 120-135 Available at - NIO, Goa
  • Kumar, RS (2001) Biodiversity and affinity of polychaetous annelids within the mangrove ecosystem of Indo-Pacific region Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 43(1&2) 206-213 Available at - NIO, Goa
  • Balaji, M; Rao, MV and Rao, KS (1999) Natural resistance of ten species of catamaran grade timber to marine wood borer attack at Visakhapatnam and Kochi harbours Journal of the Marine Biological Association of India The Marine Biological Association of India, Cochin 41(1&2) 96-102 Available at - NIO, Goa
  • Balasubramanyan, K (1994) Micro-invertebrate benthic fauna of Pichavaram mangroves Conservation of mangrove forest genetic resources: A training manual Available at - http://idl-bnc.idrc.ca/dspace/bitstream/10625/33954/1/118818.pdf
  • Sealifebase Available at - http://www.sealifebase.org/
  • Srikrishnadhas, B; Ramamoorthi, K and Balasubrahmanyan, K (1987) Polychaetes of Porto Novo waters Journal of the Marine Biological Association of India The marine biological association of India 29(1&2) 134-139 Available at - NIO, Goa
  • Fauvel, P (1953) The fauna of India including Pakistan, Ceylon, Burma and Malaya: Annelida, Polychaeta The Indian press ltd., Allahabad 507 pp Available at - NIO, Goa
  • Rajagopal, S; Azariah, J and Nair, KVK (1990) Ecology of fouling organisms in Edaiyur backwaters, Kalpakkam Mahasagar- Bulletin of the National Institute of Oceanography NIO, Goa 23 (1) 29-41 Available at - ijs.nio.org/index.php/msagar/article/download/2417/2392

Page last updated on:2011-07-01

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