Bycatch species distribution from mid-water trawlers in the north-eastern Arabian sea: a step towards the implementation of marine spatial planning

Spatial conservation planning to reduce the impact of fishing on ecosystems necessitates understanding of the spatial distribution of bycatch in fishing grounds. Management measures in Indian waters cannot be spatially explicit without this information. Thus, a preliminary study was conducted on the...

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Bibliographic Details
Published in:Journal of maps 2023-12, Vol.19 (1)
Main Authors: Abdul Azeez, P., Rohit, Prathibha, Mohammed Koya, K., Shenoy, Latha, Jaiswar, Ashok Kumar, Raman, Mini, Rahangdale, Shikha, Damodaran, Divu
Format: Article
Language:English
Subjects:
Bycatch
Coastal management
Coasts
Commercial fishing
Ecosystem management
ecosystem-based fisheries management
Ecosystems
Environmental planning
fisheries bycatch
Fisheries management
Fishing
Fishing zones
Geographical distribution
Geostatistical analysis
Information management
Kriging interpolation
Marine ecosystems
Marine protected areas
Marine resources
marine spatial planning
Planning
Spatial distribution
trawl fisheries
Trawlers
Underwater resources
Water conservation
Wind
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Summary:Spatial conservation planning to reduce the impact of fishing on ecosystems necessitates understanding of the spatial distribution of bycatch in fishing grounds. Management measures in Indian waters cannot be spatially explicit without this information. Thus, a preliminary study was conducted on the northwest coast of India to identify the most persistent bycatch areas from mid-water trawlers targeting largehead hairtails (Trichiurus lepturus). Semi-variogram modelling and kriging interpolation showed that bycatch abundance varied by species and associated habitat or depth preference. A significant positive correlation between species in bycatch abundance revealed that few share the same habitat in the region. Bycatch species were concentrated in the inshore area (
ISSN:1744-5647
1744-5647
DOI:10.1080/17445647.2023.2192371