Underwater sensors detect two harbor porpoises near fishing net off Cornwall
GS3Economy · S&T · Environment · Security· Biotechnology & health research· Prelims·
Marine bycatch and acoustic monitoring: a GS3 case study on biodiversity conservation and technology.
Why in news
Researchers from the University of St Andrews and Scottish Oceans Institute used underwater sensors to record a harbor porpoise entanglement in a fishing net off Cornwall.
Background
The incident occurred on August 26 and was recorded acoustically by the Sea Mammal Research Unit and Scottish Oceans Institute. The findings were published in the journal Royal Society Open Science.
Facts for Prelims
- EnvironmentHarbor porpoises were observed foraging and exhibiting distress calls near fishing nets.
- S&TUnderwater sensors were utilized to detect and record acoustic data of marine mammal bycatch.
Prelims practice question
In which journal were the findings regarding the harbor porpoise entanglement and acoustic monitoring published?
- (a)Science and Technology Review
- (b)Marine Biology Journal
- (c)Nature Communications
- (d)Royal Society Open Science
Show answer
Answer: (d) Royal Society Open Science — The note states that the findings were published in the journal Royal Society Open Science.
For Mains
Q. Discuss the ecological implications of marine bycatch and suggest technological interventions to mitigate the impact of commercial fishing on marine biodiversity.
Dimensions to cover in your answer
- Ecological impact: Disruption of marine mammal populations and acoustic communication patterns
- Technological intervention: Development of acoustic-responsive gear to reduce accidental entanglement
- Policy trade-off: Balancing commercial fishing yields with marine conservation mandates
Keywords: marine bycatch · acoustic monitoring · biodiversity conservation · sustainable fisheries · marine mammal research
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