Endangered Species Research (2019)
In 2017 an emergency field effort was undertaken in an attempt to prevent the extinction of the world’s most endangered marine mammal, the vaquita (Phocoena sinus). The rescue effort involved…
Position at birth and possible effects on calf survival in finless porpoises (Neophocaena asiaeorientalis)
Deng, Xiaojun; Hao, Yujiang; Serres, Agathe; Wang, Kexiong; Wang, Ding
Aquatic Mammals (2019)
Odontocetes are usually reported giving birth to calves in breech position (fluke-first). Cephalic position (head-first) is less frequently observed and, therefore, is considered to be abnormal for the parturition. However,…
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…
Characterization of milk composition in narrow-ridged finless porpoises (Neophocaena asiaeorientalis) at different lactation stages
Zeng, Xianyuan; Huang, Shiang-lin; Qian, Zhengyi; Hao, Yujiang; Wang, Ding; Ji, Junhua; Nabi, Ghulam
Marine Mammal Science (2017)
Lactation plays a vital role in reproductive success, evolving with ecological adaptations of mammalian life histories. Knowledge of the lactation process in odontocetes is scarce and limited to a handful…
Behavioral laterality in Yangtze finless porpoises (Neophocaena asiaeorientalis asiaeorientalis)
Platto, Sara; Zhang, C.; Pine, Matthew K.; Feng, W.K.; Yang, L.G.; Irwin, A.; Wang, D.
Behavioural Processes (2017)
The Yangtze finless porpoise (Neophocaena asiaeorientalis asiaeorientalis) is a critically endangered species with less than 1000 individuals expected to be left in the wild. While many studies have been conducted…
Conditioned hearing sensitivity change in the harbor porpoise (Phocoena phocoena)
Nachtigall, Paul E.; Supin, Alexander Ya.; Pacini, Aude F.; Kastelein, Ronald A.
The Journal of the Acoustical Society of America (2016)
Hearing sensitivity, during trials in which a warning sound preceding a loud sound, was investigated in two harbor porpoises (Phocoena phocoena). Sensitivity was measured using pip-train test stimuli and auditory…
Reversible bending of the dorsal fins of harbor porpoises (Phocoena phocoena) and a striped dolphin (Stenella coeruleoalba) in captivity
Kastelein, Ronald A.; Triesscheijn, Rob J. V.; Jennings, Nancy
Aquatic Mammals (2016)
The dorsal fin of odontocetes has, among other roles, hydrodynamic and thermoregulatory functions. In captivity, the dorsal fin sometimes bends laterally. Bending of the dorsal fin was described in 13…
Seventh Meeting of the Comité Internacional para la Recuperación de la Vaquita
CIRVA
(2016)
EXTINCTION IS IMMINENT CIRVA reviewed the 2015 population survey results, which showed that only about 60 vaquitas remained at the beginning of the emergency 2-year partial gillnet ban. CIRVA also…
Fatal disseminated Toxoplasma gondii infection in a captive harbour porpoise (Phocoena phocoena)
Herder, V.; van de Velde, N.; Højer Kristensen, J.; van Elk, C.; Peters, M.; Kilwinski, J.; Schares, G.; Siebert, U.; Wohlsein, P.
Journal of Comparative Pathology (2015)
A 7-year-old female harbour porpoise (Phocoena phocoena), born and held in captivity, suffered from reduced consciousness, imprecise and circling swimming movements and long phases of immobility over a period of…
Studying the biosonar of bats and porpoises using multi receiver arrays
Koblitz, Jens C.
Doctoral Thesis - Eberhard Karls Universität Tübingen (2014)
Echolocation, the main sensory modality of odontocetes and microbats, has mostly been studied using single receivers. Such a recording setup is sufficient to study signal parameters like pulse interval, inter…