Methods in Ecology and Evolution (2016)
1. Robust estimates of the density or abundance of cetaceans are required to support a wide range of ecological studies and inform management decisions. Considerable effort has been put into…
Trends of harbour porpoise (Phocoena phocoena) density in the southern North Sea
Peschko, Verena; Ronnenberg, Katrin; Siebert, Ursula; Gilles, Anita
Ecological Indicators (2016)
In the southern North Sea, harbour porpoise occurrence increased in recent years after a phase of low abundances during earlier decades. Only very few studies on porpoise presence in the…
Abundance and distribution of cetaceans in the Gulf of Alaska
Rone, Brenda K.; Zerbini, Alexandre N.; Douglas, Annie B.; Weller, David W.; Clapham, Phillip J.
Marine Biology (2017)
To effectively protect and manage marine mammals, contemporary information on their abundance and distribution is essential. Several factors influence present-day insight including the accessibility of the study area and the…
COSEWIC assessment and status report on the harbour porpoise (Pacific Ocean population) Phocoena phocoena vomerina in Canada
Hall, A.; Heise, K.
COSEWIC Status Reports (2017)
Wildlife Species Description and Significance The Pacific Harbour Porpoise (Phocoena phocoena vomerina) is the smallest cetacean in British Columbia (BC), ranging from 1.5 to 1.6 m and 45 to 60…
Eighth Meeting of the Comité Internacional para la Recuperación de la Vaquita
CIRVA
(2017)
The Dire Status of the Vaquita Has Worsened Analysis of the 2016 Acoustic Monitoring Program data has shown that almost half of the remaining vaquita population was lost between 2015…
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…
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…
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…
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…
Population and distribution characteristics of Yangtze finless porpoise in Jiangxi waters during dry season
Que, Jiang-Long; Rao, Rong-Cheng; Yang, Ying; Min, Jia-Ling; Tian, Zhen; Yu, Zhi-Jie; Yu, Jin-Xiang; Dai, Yin-Gen; Mei, Zhi-Gang
Acta Hydrobiologica Sinica (2019)
Jiangxi Province is one of the most important distribution of Yangtze finless porpoise (YFP). Since the scientific investigation of Yangtze finless porpoise in the whole Yangtze River basin in 2017,…