Horizontal and vertical movements of immature dusky sharks Carcharhinus obscurus in relation to commercial longline fisheries in the western North Atlantic Ocean

Kroetz, Andrea M.; Gulak, Simon J. B.; Carlson, John K.

doi:10.1186/s40317-021-00258-8

i

Horizontal and vertical movements of immature dusky sharks Carcharhinus obscurus in relation to commercial longline fisheries in the western North Atlantic Ocean

2021
By Kroetz, Andrea M. ; Gulak, Simon J. B. ; Carlson, John K.

Details

Journal Title:

Animal Biotelemetry
Personal Author:

Kroetz, Andrea M. ; Gulak, Simon J. B. ; Carlson, John K.
NOAA Program & Office:

NMFS (National Marine Fisheries Service) ; SEFSC (Southeast Fisheries Science Center) ; CIMAS (Cooperative Institute for Marine and Atmospheric Studies)
Description:

Many species of sharks, including the dusky shark Carcharhinus obscurus, are often incidentally captured in commercial pelagic and bottom longline fisheries. Incidental capture can lead to at-vessel or post-release mortality and can be detrimental to populations of threatened, endangered, or prohibited species. The estimated at-vessel mortality for dusky sharks can be high in longline fisheries and, to minimize mortality, time–area closures have been designated in the western North Atlantic Ocean to mitigate interactions with longline fisheries, yet incidental capture of dusky sharks is still common. We compared the vertical and horizontal movements of dusky sharks to the overall fishing effort and depth fished of commercial pelagic and bottom longline fisheries to determine when and where overlap is present that could lead to incidental capture.
Keywords:

Animal Science And Zoology Computer Networks And Communications Instrumentation Signal Processing Animal Science And Zoology Computer Networks And Communications Animal Science And Zoology Computer Networks And Communications
Source:

Animal Biotelemetry, 9(1)
DOI:

https://doi.org/10.1186/s40317-021-00258-8
ISSN:

2050-3385
Format:

PDF
Publisher:

Springer Science and Business Media LLC
Document Type:

Journal Article
License:

https://creativecommons.org/licenses/by/4.0
Rights Information:

CC BY
Compliance:

Submitted
Main Document Checksum:

urn:sha256:39dda86e97f2701703e44aca53f96c5c398db354cdf5dbe093475229711f1c09
Download URL:

https://repository.library.noaa.gov/view/noaa/49181/noaa_49181_DS1.pdf
File Type:

[PDF - 2.05 MB ]

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