Changes in click source levels with distance to targets: Studies of free-ranging white-beaked dolphins Lagenorhynchus albirostris and captive harbour porpoises Phocoena phocoena

Atem, Ana Carolina G.; Rasmussen, Marianne H.; Wahlberg, Magnus; Petersen, Hans C.; Miller, Lee A.;
Bioacoustics (2009)

Probably all odontocetes use echolocation for spatial orientation and detection of prey. We used a four hydrophone “Y” array to record the high frequency clicks from free-ranging White-beaked Dolphins Lagenorhynchus…


Observations on the baiji (Lipotes vexillifer) and the finless porpoise (Neophocaena asiaeorientalis) in the Changjiang (Yangtze) River between Nanjing and Taiyangzhou, with remarks on some physiological adaptations of the baiji to its environment

Zhou, K.; Pilleri, G.; Li, Y.
Investigations on Cetacea (1979)

Two species of dolphin inhabit the Changjiang (Yangtze): Lipotes vexillifer MILLER, 1918 (known as Baiji in Chinese) and the Finless porpoise, Neophocaena asiaeorientalis PILLERI and GIHR, 1972. Although quite a…


Distribution, ecology, behaviour and conservation of the dolphins of the middle reaches of Changjiang (Yangtze) River (Wuhan-Yueyang)

Chen, P.; Liu, P.; Liu, R.; Lin, K.; Pilleri, G.
Investigations on Cetacea (1979)

Two species of cetaceans live in the Yangtze river (Changjiang R.): Lipotes vexillifer (MILLER, 1918) and Neophocaena asiaeorientalis (PILLERI and GIHR, 1972). Both species are only found in the middle…


Seasonal habitat-based density models for a marine top predator, the harbor porpoise, in a dynamic environment

Gilles, A.; Viquerat, S.; Becker, E. A.; Forney, K. A.; Geelhoed, S. C. V.; Haelters, J.; Nabe-Nielsen, J.; Scheidat, M.; Siebert, U.; Sveegaard, S.; van Beest, F. M.; van Bemmelen, R.; Aarts, G.
Ecosphere (2016)

Effective species conservation and management requires information on species distribution patterns, which is challenging for highly mobile and cryptic species that may be subject to multiple anthropogenic stressors across international…


Riding the tide: Use of a moving tidal-stream habitat by harbour porpoises

Benjamins, S.; Dale, A.; van Geel, N.; Wilson, B.
Marine Ecology Progress Series (2016)

Tidal-stream habitats present periodically fast-flowing, turbulent conditions. Evidence suggests that these conditions benefit top predators such as harbour porpoises Phocoena phocoena, presumably allowing them to optimise exploitation of prey resources.…


Spatial interactions between marine predators and their prey: Herring abundance as a driver for the distributions of mackerel and harbour porpoise

Sveegaard, S.; Nabe-Nielsen, J.; Stæhr, K. J.; Jensen, T. F.; Mouritsen, K. N.; Teilmann, J.
Marine Ecology Progress Series (2012)

The distribution of marine predators is tightly coupled with that of their prey, and may also be affected by interactions between competing predators. In order to adopt an ecosystem approach…