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Targeting the non-target plant biota: Ecological implications of trawl fishery along Thoothukudi, Southeast coast of India

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Relation http://eprints.cmfri.org.in/13012/
https://www.journals.elsevier.com/regional-studies-in-marine-science
https://doi.org/10.1016/j.rsma.2018.08.005
 
Title Targeting the non-target plant biota: Ecological implications of trawl
fishery along Thoothukudi, Southeast coast of India
 
Creator Ranjith, L
Shukla, S P
Vinod, K
Ramkumar, S
Chakraborty, S K
 
Subject Seaweed
Seagrass
Algae
 
Description Baseline information about the quantitative aspects of the marine plant biota dislodged and discarded
during the trawl fishery is not available in the literature. An attempt was made to document the
diversity and biomass of plant biota (seaweeds and seagrasses) destroyed and discarded during the trawl
operations along the Tuticorin (renamed as Thoothukudi), Southeast coast of India. Fifteen species of
seaweeds and three species of seagrasses were recorded during the study period. The biomass of plant
biota discarded was 5 to 50 kg/haul/h during the study period, and the average discard was higher (44.4%)
in the pre-monsoon season. The biomass dislodged mainly constituted the seagrasses (63.0%) whereas
seaweeds contributed to the extent of 37.0 % of the total biomass. The variation in the values of the biomass
of seaweeds and seagrasses shows no statistically significant difference (p-value >0.05) between the
seasons. Among the seaweeds, Solieria robusta was most severely damaged species (9 kg/haul/h) whereas
the seagrass Cymodocea serrulata was destroyed to the extent of 30 kg/haul/h. In the context of growing
environmental and ecological significance of the marine plant biota for ecological balance and fisheries,
this report will contribute in delineating effective policies and framework for sustainable fisheries, giving
due importance to the conservation of marine flora.
 
Publisher Elsevier B.V.
 
Date 2018
 
Type Article
PeerReviewed
 
Format text
 
Language en
 
Identifier http://eprints.cmfri.org.in/13012/1/Ranjith_Targeting%20the%20non-target%20plant%20biota_Restricted%20access.pdf
Ranjith, L and Shukla, S P and Vinod, K and Ramkumar, S and Chakraborty, S K (2018) Targeting the non-target plant biota: Ecological implications of trawl fishery along Thoothukudi, Southeast coast of India. Regional Studies in Marine Science, 24 (1). pp. 143-155.