Fishery Bulletin (2015)
Abundance of harbor porpoise (Phocoena phocoena) was estimated from data collected during vessel surveys conducted throughout the inland waters of Southeast Alaska. Line-transect methods were used during 18 seasonal surveys…
Abundance and distribution of marine mammals in nearshore waters off New Jersey, USA
Whitt, A. D.; Powell, J. A.; Richardson, A. G.; Bosyk, J. R.
Journal of Cetacean Research and Management (2015)
Marine mammal abundance and distribution in New Jersey’s nearshore waters are not well known due to limited dedicated studies. The first year-round systematic surveys were conducted to determine the spatial/temporal…
Modelling fine-scale distribution and relative abundance of harbour porpoises in the Southern Bight of the North Sea using platform-of-opportunity data
Bouveroux, Thibaut; Waggitt, James J.; Belhadjer, Anissa; Cazenave, Pierre W.; Evans, Peter G.H.; Kiszka, Jeremy J.
Journal of the Marine Biological Association of the United Kingdom (2020)
Over the last 25 years, the harbour porpoise (Phocoena phocoena) has made a significant return to the Southern Bight of the North Sea and the English Channel due to a…
Abundance of harbour porpoises (Phocoena phocoena) on the Dutch continental shelf, aerial surveys 2012-2017
Geelhoed, S. C. V.; Scheidat, M.
Lutra (2018)
The harbour porpoise (Phocoena phocoena) is the most abundant marine mammal species in Dutch waters. Aerial surveys along predesigned track lines in 2012-2017 provided density and abundance estimates for the…
Linear transect surveys of abundance and density of cetaceans in the area near the Dzharylgach Island in the north-western Black Sea
Gladilina, E. V.; Vishnyakova, K. A.; Neprokin, O. O.; Ivanchikova, Yu. F.; Derkacheva, T. A.; Kryukova, A. A.; Savenko, O. V.; Gol’din, P. E.
Vestnik Zoologii (2017)
The first assessment of cetacean density and abundance by linear transect survey was conducted in 2016 and 2017 in the shallowest coastal area of the Ukrainian sector of the north-western…
Conservation plan for the harbour porpoise Phocoena phocoena in The Netherlands: Towards a favourable conservation status
Camphuysen, Kees C. J.; Siemensma, Marije L.
NIOZ Reports (2011)
- This is a conservation plan for the Harbour Porpoise Phocoena phocoena based on the current seasonal occurrence and abundance of porpoises within waters under Dutch jurisdiction. - The conservation…
Abundance decline in the narrow‐ridged finless porpoise population off the Pacific coast of eastern Japan
Shirakihara, Kunio; Nakahara, Fumio; Shinohara, Masanori; Shirakihara, Miki; Hiramatsu, Kazuhiko; Irie, Takahiro
Population Ecology (2019)
The narrow‐ridged finless porpoise Neophocaena asiaeorientalis is a small‐toothed whale with a coastal habitat and is sensitive to human activity. Aerial sighting surveys were conducted in 2012 to evaluate the…
Habitat succession of the Yangtze finless porpoise in Poyang Lake under the changing hydrodynamic and feeding environment
Han, Yong; Sun, Zhiyu; Fang, Hongwei; Bai, Sen; Huang, Lei; He, Guojian
Ecological Modelling (2020)
Poyang Lake, located in the middle and lower reaches of the Yangtze River, is the largest freshwater lake in China and the most important habitat for the Yangtze finless porpoise.…
Population survey showing hope for population recovery of the critically endangered Yangtze finless porpoise
Huang, Jie; Mei, Zhigang; Chen, Mao; Han, Yi; Zhang, Xinqiao; Moore, Jeffrey E.; Zhao, Xiujiang; Hao, Yujiang; Wang, Kexiong; Wang, Ding
Biological Conservation (2020)
The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis), has experienced rapid declines in recent decades. We estimate its abundance based on surveys conducted between November and December 2017 in the main-stem…
Abundance and seasonality of Dall’s porpoise (Phocoenoides dalli) in southeast Alaska
Jefferson, T. A.; Dahlheim, M. E.; Zerbini, A. N.; Waite, J. M.; Kennedy, A. S.
NOAA Technical Memorandum NMFS-AFSC-385 (2019)
Little is known about Dall’s porpoise (Phocoenoides dalli) population biology in Southeast Alaska. Here we present the first abundance estimates for Dall’s porpoise in the waters of Southeast Alaska. We…