Nature (1997)
The most serious danger to dolphins and porpoises around the world is the threat from various forms of gill-net fishing. One potential way to reduce the number of deaths of…
Protected species bycatch estimating approaches: Estimating harbor porpoise bycatch in U.S. Northwestern Atlantic gillnet fisheries
Orphanides, C. D.
Journal of Northwest Atlantic Fishery Science (2010)
Harbor porpoise bycatch estimates for federally managed gillnet fisheries in northwestern Atlantic US waters were calculated for a nine-year period (1999–2007) using two new methods, and the results were compared…
Factors affecting the recovery of Phocoena sinus, the vaquita or Gulf of California harbor porpoise
Barlow, J.
NMFS Administrative Report No. 86-37 (1986)
The vaquita (Phocoena sinus) is a small porpoise found only in the northern Gulf of California. This species may have been subject to high levels of mortality in the gill-net…
Trends in abundance of the Gulf of Maine population of harbour porpoise
Olson, P. A.
Master's Thesis - University of Rhode Island (1996)
Hundreds of harbor porpoise die each year as bycatch in the Gulf of Maine's sink gillnet fishery. In recent years, concern has arisen whether the Gulf of Maine population of…
Mitigation of harbour porpoise (Phocoena phocoena) by-catch in the gillnet fishery in the lower Bay of Fundy
Trippel, Edward A.; Strong, Michael B.; Terhune, John M.; Conway, Jeremy D.
Canadian Journal of Fisheries and Aquatic Sciences (1999)
Demersal gill nets equipped with acoustic alarms reduced harbour porpoise (Phocoena phocoena) by-catch rates by 77% over those without alarms in the Swallowtail area of the lower Bay of Fundy…
Feeding habits and consumption by finless porpoises (Neophocaena asiaeorientalis) in the Yellow Sea
Park, Kyum-Joon; An, Yong-Rock; Lee, Young-Ran; Park, Ji-Eun; Moon, Dae-Yeon; Choi, Seok-Gwan
Korean Journal of Fisheries and Aquatic Sciences (2011)
We investigated the stomach contents of finless porpoises collected in the Yellow Sea. Prey organisms in the stomachs of 109 finless porpoises were identified as 11 species of fish, 8…
Passive acoustic assesment of vaquita
Jaramillo-Legorreta, Armando M.; Rojas-Bracho, Lorenzo
Scientific Committee Meeting Documents (2008)
(...) During April 1997 the acoustic detector was successfully used to detect vaquitas for the first time. On that occasion we surveyed on a fixed location, aboard an outboard motor…
Spatial and temporal impact of pingers on porpoises
Carlström, Julia; Berggren, Per; Tregenza, Nick J. C.
Canadian Journal of Fisheries and Aquatic Sciences (2009)
Bycatches are considered the most serious threat to harbour porpoises (Phocoena phocoena) and other small cetaceans worldwide. Pingers are used to reduce bycatch levels, but may also deter porpoises from…
Effects of noise and by-catch on a Danish harbour porpoise population
Nabe-Nielsen, Jacob; Sibly, Richard M.; Tougaard, Jakob; Teilmann, Jonas; Sveegaard, Signe
Ecological Modelling (2014)
Ships and wind turbines generate noise, which can have a negative impact on marine mammal populations by scaring animals away. Effective modelling of how this affects the populations has to…
Species diversity and distribution pattern of marine mammals of the Persian Gulf and Gulf of Oman – Iranian waters
Owfi, F.; Braulik, G. T.; Rabbaniha, M.
Iranian Journal of Fisheries Sciences (2016)
A total of 98 marine mammal records from Iranian coastal waters of the Persian Gulf and Gulf of Oman were compiled of which 66 are previously unpublished new records. Seventy-nine…