2023
DOI: 10.1111/mms.13080
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Can the annual bycatch per unit effort of common dolphins (Delphinus delphis) be used to index the species' relative abundance in the East Sea of Korea?

Joon‐Taek Yoo,
Kyum Joon Park

Abstract: Visual line‐transect surveys are widely used to estimate the abundance of cetacean populations; however, this method can be prohibitively expensive. Thus, a less expensive alternative method was investigated in the present study, i.e., whether temporal changes in the bycatch per unit effort (BPUE) of cetaceans could be used to index the changes in their abundance. Specifically, the relationship between the annual BPUE of two main bycatch fisheries and the relative abundance of common dolphins (Delphinus delphi… Show more

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Cited by 1 publication
(7 citation statements)
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“…A certificate reported from a mandatory investigation (bycatch species and location, type of injury to cetacean, etc.) for each cetacean bycaught by fishermen was issued by the Korean Coast Guard in 2011 [37]. Each cetacean bycaught in fishing gear is individually counted.…”
Section: Data Collectionmentioning
confidence: 99%
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“…A certificate reported from a mandatory investigation (bycatch species and location, type of injury to cetacean, etc.) for each cetacean bycaught by fishermen was issued by the Korean Coast Guard in 2011 [37]. Each cetacean bycaught in fishing gear is individually counted.…”
Section: Data Collectionmentioning
confidence: 99%
“…This study was conducted around the widest hotspot of common dolphins, as their main hotspot. In the present study, the BPUE of common dolphins using a set net is used to index the relative density of species in the coastal region [37]. The BPUE was calculated by dividing the bycatch by the gear number of the set nets in each year.…”
Section: Data Collectionmentioning
confidence: 99%
See 3 more Smart Citations