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Title: | Effect of environment on spatio-temporal structuring of fish assemblages in a monsoon influenced tropical estuary |
Other Titles: | Not Available |
Authors: | Sreekanth GB, Jaiswar AK, Zacharia PU, Pazhayamadom DG and Chakraborty SK |
ICAR Data Use Licennce: | http://krishi.icar.gov.in/PDF/ICAR_Data_Use_Licence.pdf |
Author's Affiliated institute: | ICAR-Central Coastal Agricultural Research Institute |
Published/ Complete Date: | 2019-01-01 |
Project Code: | Not Available |
Keywords: | Fish assemblage, trophic guild, monsoon influenced tropical estuary, Zuari, spatio-temporal structure |
Publisher: | Springer |
Citation: | Sreekanth GB, Jaiswar AK, Zacharia PU, Pazhayamadom DG and Chakraborty SK. 2019. Effect of environment on spatio-temporal structuring of fish assemblages in a monsoon influenced tropical estuary. Environmental Monitoring and Assessment 191: 305 (2019) Not Available |
Series/Report no.: | 191; |
Abstract/Description: | This study analyses the trophic structure of fish assemblages in a well-mixed tropical estuary, Zuari located in southwest coast of India. A total of 224 fish species were collected between September 2013 and August 2016 from nine sampling stations using surface and bottom set gillnets. The sampling events were designed to cover three major seasons such as the pre-monsoon, monsoon and post-monsoon. For each sampling event, abiotic variables such as temperature, salinity, dissolved oxygen and transparency of the water were recorded. The data obtained for abundance of fish species was subjected to cluster analysis and non-metric multidimensional scaling. The results defined six spatio-temporally varying groups (clusters) within Zuari estuary. Canonical correspondence analysis demonstrated that temperature, salinity, dissolved oxygen and transparency were important in determining the fish assemblages in Zuari. The estuarine resident species were abundant in the inner zone (riverine side) of the estuary, where the salinity and temperature recorded lower dimensions compared to middle and outer zones (marine side). However, the inner shallow zone of the estuary was not a preferred habitat for the migrating marine species. Majority of the fish species preferred middle and outer zones and post-monsoon and pre-monsoon seasons for inhabiting the estuary. The present study furnishes a reference data for the spatio-temporal dynamics of fish assemblages in tropical monsoonal estuaries. |
Description: | Not Available |
ISSN: | 0167-6369 |
Type(s) of content: | Article |
Sponsors: | Not Available |
Language: | English |
Name of Journal: | Environmental Monitoring and Assessment |
Journal Type: | Research Paper |
NAAS Rating: | 7.9 |
Impact Factor: | 2.51 |
Volume No.: | 191 |
Page Number: | Not Available |
Name of the Division/Regional Station: | Not Available |
Source, DOI or any other URL: | 10.1007/s10661-019-7436-x |
URI: | http://krishi.icar.gov.in/jspui/handle/123456789/49457 |
Appears in Collections: | NRM-CCARI-Publication |
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