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Assessment of stock vulnerability of Indian marine fishes to past changes in climate and options for adaptation

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Relation http://eprints.cmfri.org.in/14104/
https://www.int-res.com/abstracts/cr/v79/n3/p175-192/
https://doi.org/10.3354/cr01586
 
Title Assessment of stock vulnerability of Indian marine fishes to past changes in climate and options for adaptation
 
Creator Dineshbabu, A P
Zacharia, P U
Thomas, Sujitha
Kizhakudan, Shoba Joe
Rajesh, K M
Vivekanandan, E
Pillai, S Lakshmi
Sivadas, M
Ghosh, Shubhadeep
Ganga, U
Nair, Rekha J
Najmudeen, T M
Koya, Mohammed
Chellappan, Anulekshmi
Dash, Gyanaranjan
Divipala, Indira
Akhilesh, K V
Muktha, M
Dash, Swatipriyanka Sen
Rojith, G
Ninan, Roshen G
 
Subject Climate change
 
Description Vulnerability assessment frameworks are used in many countries to provide a primary
assessment status of marine fish stocks and their susceptibility to change in response to
external factors. With increasing evidence that the marine fisheries of India are likely to face major
impacts of changing climate along with other natural and anthropogenic factors, a study was carried
out to determine the relative vulnerability of 68 species of finfish and shellfish along the
Indian coast. Species selection was based on their abundance and importance in the fishery across
4 zones in the country (northeast, northwest, southeast and southwest) and on biological characteristics
like growth, reproduction and predator–prey interactions. Vulnerability assessment was
based on the relation between exposure, sensitivity and adaptability attributes, expressed as V =
(E + S) − A. The exposure attributes selected were environmental parameters that have a direct
impact on the fish stocks. Sensitivity attributes were biological characteristics that are indicative
of the ability or inability of the species to respond to external pressures. Adaptive capacity attributes
were biological and ecological traits that could help the species to adapt to a fluctuating or
changing environment. About 69% of the species studied are highly vulnerable along the Indian
coast, with their susceptibility being higher along the east coast. Fishing pressure contributes significantly
to stock fluctuations and reproductive output. Species with restricted geographic distribution
are especially vulnerable to climate change. The outcome of this study will serve as an
effective tool in prioritizing mitigation and fishery management strategies on a regional basis in
the country.
 
Date 2020
 
Type Article
PeerReviewed
 
Identifier Dineshbabu, A P and Zacharia, P U and Thomas, Sujitha and Kizhakudan, Shoba Joe and Rajesh, K M and Vivekanandan, E and Pillai, S Lakshmi and Sivadas, M and Ghosh, Shubhadeep and Ganga, U and Nair, Rekha J and Najmudeen, T M and Koya, Mohammed and Chellappan, Anulekshmi and Dash, Gyanaranjan and Divipala, Indira and Akhilesh, K V and Muktha, M and Dash, Swatipriyanka Sen and Rojith, G and Ninan, Roshen G (2020) Assessment of stock vulnerability of Indian marine fishes to past changes in climate and options for adaptation. Climate Research, 79. pp. 175-192.