Report of the International Whaling Commission (1994)
Thousands of porpoises die annually in monofilament gillnets. Simple net modifications may alleviate the problem. In June through August 1988, we quantified harbour porpoise (Phocoena phocoena) reactions to weighted vertical…
Report of the International Whaling Commission (1994)
A general description of gillnet fisheries in the Southeast Pacific area (comprising the waters of Ecuador, Peru and Chile) is presented and their potential threat to cetaceans is discussed. Information…
Report of the International Whaling Commission (1994)
There are five basic types of inshore fishing off Argentinian Tierra del Fuego: coastal fishing with gillnets or lines along the northeastern coasts; beach seining, use of wicker pots, and…
Report of the International Whaling Commission (1994)
Coastal and pelagic fishing activities in the area of Necochea harbour, where high mortality of franciscanas (Pontoporia blainvillei) in gillnets had been previously reported, and at Claromeco, a small gillnet…
Report of the International Whaling Commission (1994)
Interactions between marine mammals and fisheries were monitored along the southwestern Atlantic coast of Argentina from Bahia Samborombon (Buenos Aires Province) to Tierra del Fuego Island. A variety of fisheries…
Report of the International Whaling Commission (1994)
Dall's porpoises, Phocoenoides dalli, were often incidentally caught in the Japanese salmon gillnet fishery in the North Pacific. In order to investigate the reasons for entanglement, their auditory characteristics and…
Marine Mammal Sci (1994)
The rate of occurrence of click trains of two harbor porpoises (Phocoena phocoena) were counted during 14 nights. We developed an echolocation signal detection system that was harnessed to a…
Report of the International Whaling Commission (1994)
Small cetaceans and some great whales become entangled and die in gillnets in a variety of fisheries in the northeastern Indtan Ocean. Information on operational details, present status and future…
Report No. IIHS3-050 (1994)
Cetacean strandings have typically been classified into two types: 1) single strandings (including a mother/offspring pair); and 2) mass strandings. Singly stranded cetaceans have been reported world-wide wherever populations of…
Report of the International Whaling Commission (1994)
Since 1974, species of small cetaceans, fur seals, sea lions, sea birds and to some extent sea otters, have been taken deliberately each year for bait in the Chilean artisanal…