Investigations on Cetacea (1986)
(...) This document attempts to gather together as much information as is available on the extent of current killings of small cetaceans throughout the world, and also to highlight some…
Evolution, taxonomy and antitropical distributions of the porpoises (Phocoenidae, Mammalia)
Barnes, Lawrence G.
Marine Mammal Sci (1985)
True porpoises are a morphologically distinctive and evolutionarily old group of odontocete cetaceans classified as the family Phocoenidae. They are distinct from members of the family Delphinidae, with which they…
Reproduction in the porpoises (Phocoenidae): Implications for management
GASKIN, D. E.; SMITH, G. J. D.; WATSON, A. P.; YASUI, W. Y.; YURICK, D. B.
Report of the International Whaling Commission (1984)
The population biology of most phocoenid species is still rather poorly understood. It is important that we improve our knowledge in view of concerns which have been expressed in recent…
Near field, interference, far field and rostrum structure in the echolocation system of cetaceans
Pilleri, G.; Gihr, M.; Kraus, C.
Investigations on Cetacea (1983)
This monograph may be regarded as an important supplement to the book »Echolocation in Whales and Dolphins» by Purves and Pilleri, published by the Academic Press, London, 1983. It contains…
The ambient noise in the environment of Sousa plumbea and Neophocaena phocaenoides (Cetacea) with special reference to the sounds of Johnius belangerii (Pisces, Sciaenidae)
Pilleri, G.; Kraus, C.; Gihr, M.
Investigations on Cetacea (1982)
In the Piti Mouth, a typical biotope of Sousa plumbea and Neophocaena phocaenoides in the Indus delta, the sounds produced by Johnius belangerii (Boro) and the rather weaker crustacean sounds…
Fenestration of the skull in some cetaceans
Pilleri, G.; Gihr, M.; Zijganov, V. V.; Kraus, C.
Investigations on Cetacea (1982)
One hundred and forty-three skulls of a total of 15 cetacean species belonging to the superfamiIies of the Platanistoidea, Monodontoidea and Delphinoidea presented usually symmetrically arranged perforation areas or lacunae…
Regression of the optic system in the Changjiang (Yangtze) finless porpoise (Neophoceana asiaeorientalis) as a result of lack of light
Chen, P.; Shao, Z.; Pilleri, G.
Investigations on Cetacea (1980)
(...) The research shows that the finless porpoise of the Changjiang (Yangtze river) presents an atrophy ofthe entire optic system - eye and eye muscle nerves, optic nerve, optic pathways.…
Neophocaena phocaenoides and Neophocaena asiaeorientalis: Taxonomical differences
Pilleri, G.; Chen, P.
Investigations on Cetacea (1980)
The Chinese finless porpoise of the Changjiang river, Neophocaena asiaeorientalis (PILLERI and GIHR, 1972) presents a taxonomic entity which differs from N. phocaenoides (G. CUVIER, 1829) of south and south-west…
How the finless porpoise (Neophocaena asiaeorientalis) carries its calves on its back, and the function of the denticulated area of skin, as observed in the Changjiang River, China
Pilleri, G.; Chen, P.
Investigations on Cetacea (1979)
Finless porpoise mothers are able to carry their calves balanced securely on their back. This behaviour was frequently observed by the authors in the course of an expedition to the…
Observations on the dolphins in the Indus Delta (Sousa plumbea and Neophocaena phocaenoides) in winter 1978-1979
Pilleri, G.; Pilleri, O.
Investigations on Cetacea (1979)
An account is given of observations on two dolphin species Sousa plumbea and Neophocaena phocaenoides which belong to the typical fauna of the Indus Delta. Sousa is a permanent inhabitant…