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- Title
Larval abundance and its relation to macrofouling settlement pattern in the coastal waters of Kalpakkam, southeastern part of India.
- Authors
Sahu, Gouri; Satpathy, K.; Mohanty, A.; Biswas, Sudeepta; Achary, M.; Sarkar, S.
- Abstract
The present work revealed that salinity, water temperature, and food availability were the most crucial factors affecting the abundance of larvae and their settlement as macrofouling community in the coastal waters of Kalpakkam. Quantitative as well as qualitative results showed that late post-monsoon (April-May) and pre-monsoon (June-September) periods were found to be suitable periods for larval growth, development, and survival to adult stages for most of the organisms. Clustering of physico-chemical and biological (including larval and adult availability) data yielded two major clusters; one formed by northeast (NE) monsoon months (October-January) and the other by post-monsoon/summer (February-May) months, whereas; pre-monsoon months (June-September) were distributed between these two clusters. Among all the major macrofouler groups, only bivalves established a successful relationship between its larval abundance and adult settlement. Principal component analysis indicated good associations of bivalve larvae with polychaete larvae and adult bivalves with adult barnacles. However, biotic relation between ascidians and bryozoans was observed both in the larval as well as adult community.
- Subjects
KALPAKKAM (India); INDIA; TERRITORIAL waters; SALINITY; WATER temperature; POLYCHAETA
- Publication
Environmental Monitoring & Assessment, 2013, Vol 185, Issue 2, p1951
- ISSN
0167-6369
- Publication type
Article
- DOI
10.1007/s10661-012-2679-9