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Underwater ecological observations in the Gulf of Mannar, off Tuticorin-IV. The Occurrence of the Crinoids (Lamprometra and Comanthus) on the Gorgonid Juncella

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Title Underwater ecological observations in the Gulf of Mannar, off Tuticorin-IV. The Occurrence of the Crinoids (Lamprometra and Comanthus) on the Gorgonid Juncella
 
Creator Nayar, K Nagappan
Mahadevan, S
 
Subject Gorgonids
Underwater observation
Marine Ecosystems
 
Description Of the rocky bottom the following two categories were noticed (1) a floor which was rugged dut to moderate outgrowths of live and dead coral blocks (Favia spp.,
Montipora spp., Pocillopora spp., Coeloria sp., Goniastraea sp. and Turbinaria sp.), sponges (Acantheh carteri Dendy, Petrosia testdinaria (Lamarck), Pachychalina delicatula Dendy, Siphonochalin communis (Carter) etc., and dense population of sea-weeds, broken shells and fishes . This type of surroundings was more often characteristic of the area lying beyond 17 metres, (2) comparatively barren ground formed of inner extensive core of consolidated flat dead corals covered with thin film of coarse sand all over, with occasional outgrowths of corals
like Heteropsarnmia sp., Porites sp., encrusting sponges and coelenterate colonies like Thuiaria sp., Lytocmpus sp., and Sertzilaria sp. This habitat was more charac- teristic of the shallower rocky areas. Of course, hard and fast line of demarcation between these two types was not evident.
 
Publisher MBAI
 
Date 1965
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Identifier http://eprints.cmfri.org.in/1860/1/Nayar_456-457.pdf
Nayar, K Nagappan and Mahadevan, S (1965) Underwater ecological observations in the Gulf of Mannar, off Tuticorin-IV. The Occurrence of the Crinoids (Lamprometra and Comanthus) on the Gorgonid Juncella. Journal of the Marine Biological Association of India, 7 (2). pp. 456-457.