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A note on the button shells fishery in Kakinada Bay

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Relation http://eprints.cmfri.org.in/12305/
 
Title A note on the button shells fishery in Kakinada Bay
 
Creator Jasmin, F
Jagadis, I
Laxmilatha, P
Dhanraju, K
 
Subject Gastropods
Molluscan Fisheries
 
Description Umbonium species commonly called as 'button
shells' are the smallest gastropod shells under the
family Trochidae and subfamily Umboninae. They
are also known as 'button top shells' or 'button snails'.
They come in vast array of colours, in shades of
grey, brown, olive green, pink, red, yellow or even
white, almost uniform or with different axial and/
or spiral patterns. Even in single species various
colour and patterns can be seen. They are
distributed in the Indo-West Pacific regions where
they lie burrowed in the shallow, soft and sandy
bottoms. They occur in high densities and the
individuals are usually very active. They feed on
detritus and algae, sometimes depending on filter
feeding unlike other snails. When confronted by
predators they bury into the sandy bottom using
their long foot or float into the water column to
escape. They are non-edible ornamental gastropods
that have high demand in the ornamental shellcraft
industry.
 
Publisher Central Marine Fisheries Research Institute
 
Date 2017
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/12305/1/MFIS-231_7.pdf
Jasmin, F and Jagadis, I and Laxmilatha, P and Dhanraju, K (2017) A note on the button shells fishery in Kakinada Bay. Marine Fisheries Information Service; Technical and Extension Series (231). pp. 19-21. ISSN 0254-380 X