These are word's examples related to porpoise. Click on any word to go to its word's detail page. Or, 更多关于porpoise的信息
The pilot whale, harbor porpoise, and bottlenosed dolphin are all pelagic animals, which forage at a variety of depths.
The arrival of pelagic—mid-water—trawlers also coincides with the washing up of huge numbers of dead dolphins, porpoises and whales.
In 2002 and 2003, over 300 dolphins and porpoises were washed ashore and their carcasses could be seen on beaches.
I believe that it has been argued that harbour porpoises do not have a sufficiently identifiable breeding area.
Little research has been done internationally on the smaller cetaceans such as dolphins and porpoises.
I am aware of the concern that monofilament fishing nets may accidentally ensnare dolphins and porpoises.
Pair trawling for bass, in which two boats tow huge nets, causes hundreds of cetacean deaths: dolphins, porpoises and small whales.
In mediaeval language dolphins and porpoises were not distinguished, any more than whales were distinguished from fish.
I am not aware of any evidence to suggest that such equipment has any adverse effect on dolphin or porpoise behaviour.
This regulation is an important first step in the protection of dolphins and porpoises from the impact of fishing.
It is true that the number of porpoises is very low.
It was also in that reach that a porpoise passed under my stern in 1938 and, altogether, it is a very remarkable reach.
For this purpose a porpoise is a whale; just as for the purposes of common law a whale is a fish.
Similar viral antigens have been found in both the seals and porpoises.
These nets not only take salmon and sea trout and all types of fish but also seals and porpoises.
