Quantitative study of behavior should be preceded by precise description and definition of behavior. Therefore, an ethogram, which includes the comprehensive descriptions of the characteristic behavior of a species, should…
We studied the growth and reproduction of finless porpoises in southern China, based on 86 specimens collected as strandings or fisheries bycatches in Hong Kong, southern Fujian Province, and Taiwan.…
(...) Neophocaena phocaenoides is the only member of the family Phocoenidae without a dorsal fin (Fig. I ). In its place is a low, geographically-variable dorsal ridge (sometimes inappropriately called…
The population of finless porpoises (Neophocaena phocaenoides) that inhabits China’s Yangtze River is unique. All other known populations of the species are distributed principally in marine waters. This population is…
Similar to terrestrial mammals, male-female sexual behavior is significant for the survival and continuation of certain cetacean species. However, non-reproductive mating behaviors, i.e. homosexual behaviors and masturbation, are widespread in…
Geographical variations of postcranial skeleton among the Yangtze, Yellow Sea and South China Sea populations of the finless porpoise, Neophocaena phocaenoides, in Chinese waters were studied with t-test, covariance analysis…
Geographical variations of skull among the Yangtze, Yellow Sea and South China Sea populations of the finless porpoise, Neophocaena phocaenoides, in Chinese waters were studied using 42 skull measurements based…
The finless porpoise, Neophocaena phocaenoides, is distributed in the form of a narrow band along the coast line of tropical and temperate Asia and in the Yangtze river.The differences of…
A highly unusual sighting is described of a group of ca. 150 Burmeister’s porpoises near Isla Guañape Sur (08°28’04”S, 78°58’16.7”W) off the north-central Peruvian coast, in September 2001. The fishermen…
Published and new fresh and museum specimens of Burmeister's porpoise, Phocoena spinipinnis, collected prior to the recent research in Peru, Chile and Argentina, are listed and described. Distribution is from…