New stereo acoustic data logger for free-ranging dolphins and porpoises

Akamatsu, Tomonari; Matsuda, Akihiko; Suzuki, Shiro; Wang, Ding; Wang, Kexiong; Suzuki, Michihiko; Muramoto, Hiroyuki; Sugiyama, Naoki; Oota, Katsunori
Marine Technology Society Journal (2005)

To observe the bio-sonar behavior of dolphins and porpoises, a miniature stereo acoustic data logger was developed to record the echolocation clicks of small cetaceans. The 'A-tag' device is small…


Multiple insights into the reproductive function of harbour porpoises (Phocoena phocoena): An ongoing study

Desportes, Geneviève; Kristensen, Jakob H; Benham, Deborah; Wilson, Sandie; Jepsen, Trine; Korsgaard, Bodil; Siebert, Ursula; Driver, Jörg; Amundin, Mats; Hansen, Kirstin; Shephard, Gwyneth
NAMMCOSP (2003)

The harbour porpoises kept at the Fjord & Bælt since April 1997 offer a unique opportunity to gain a better understanding of the reproductive function in harbour porpoises, especially in…