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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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Title Targeting the non-target plant biota: Ecological implications of trawl
fishery along Thoothukudi, Southeast coast of India
Not Available
 
Creator Chakraborty,S K
Shukla,S P
Vinod,K
Ramkumar,S
Ranjith,L
 
Subject Seagrasses
Seaweeds
Bycatch
Discard
Gulf of Mannar Biosphere Reserve
Gulf of Mannar
 
Description Not Available
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.
Not Available
 
Date 2021-09-18T04:00:33Z
2021-09-18T04:00:33Z
2018
 
Type Article
 
Identifier Not Available
Not Available
http://krishi.icar.gov.in/jspui/handle/123456789/64228
 
Language English
 
Relation Not Available
 
Publisher Elsevier B.V.