[MARMAM] New publication: What if there were no fishing? North Atlantic right whale population trajectories without entanglement mortality
rkenney at uri.edu
Fri Dec 14 08:49:46 PST 2018
The following note (the supplemental tables are three times the length of
the paper) was published recently.
Kenney, R.D. 2018. What if there were no fishing? North Atlantic right
whale population trajectories without entanglement mortality. *Endangered
Species Research *37:233-237. https://doi.org/10.3354/esr00926
ABSTRACT: The North Atlantic right whale *Eubalaena glacialis*, one of the
world’s rarest mammals, experienced an alarming level of mortality in 2017.
The estimated abundance as of 2016 was 451 animals. After 20 yr of
relatively steady but slow growth, the population has declined since 2010.
Mortality and serious injury from entanglement in commercial fishing gear
have had a significant impact on recovery. Despite legal requirements to
reduce fishery-related mortality, little or no real progress has been made
over the last 2 decades. Here I took a relatively simple approach to
estimate what the population trajectory since 1990 might have been under 4
different scenarios of reduced entanglement mortality. Under the best-case
scenarios, the population at the end of the time-series would have been
25−30% higher than observed at present. If the population had not
experienced nearly 3 decades of increasing entanglement, it could have been
much more resilient to a disaster year like 2017.
The paper is available as open access at
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Robert D. Kenney, Ph.D.
Emeritus Marine Research Scientist & Adjunct Professor in Residence
University of Rhode Island
Graduate School of Oceanography
Narragansett Bay Campus Box 40
215 South Ferry Road
Narragansett, RI 02882-1197, U.S.A.
TEL: (401) 874-6664; (401) 524-4290 (mobile)
FAX: (401) 874-6523 (alternate 874-6160)
EMAIL: rkenney at gso.uri.edu, rkenney at uri.edu, rkenney at mail.uri.edu
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