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Porpoise.org Porpoise Conservation Society
  • About Porpoises
    • Harbour Porpoise
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Porpoise Research Library

Showing entries tagged with "comparison". 187 entries found.
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  • All species
  • P. spinipinnis 92
  • P. dalli 131
  • P. phocoena 729
  • N. phocaenoides 97
  • N. asiaeorientalis 181
  • P. dioptrica 46
  • P. sinus 123
  • Date added
  • Year of publication

Source of Aegean Sea harbour porpoises

Rosel, P. E.; Frantzis, A.; Lockyer, C.; Komnenou, A.
Marine Ecology Progress Series (2003)

Documented sightings of harbour porpoises in the Mediterranean are rare, although the species is common in the neighbouring North Atlantic and Black Sea. However, in the past 2 decades, 4…

  • Phocoena phocoena
  • comparison
  • distribution
  • genetics
  • growth
  • population structure

Spatial and temporal distribution of harbour porpoises in relation to their prey

Sveegaard, S.
Doctoral Thesis - Aarhus Universitet (2011)

The population status of harbour porpoises has been of concern for several years due to anthropogenic influences, especially incidental bycatch in gillnet fisheries. Proper management of a wide-ranging species such…

  • Phocoena phocoena
  • abundance
  • acoustic monitoring
  • behaviour
  • comparison
  • conservation
  • distribution
  • feeding
  • population structure
  • population trends
  • tagging

By-catch of harbour porpoise (Phocoena phocoena) in the lower Bay of Fundy gillnet fishery, 1998–2001

Trippel, E. A.; Shepherd, T. D.
Canadian Technical Report of Fisheries and Aquatic Sciences (2004)

The most serious threat to the status of harbour porpoise (Phocoena phocoena) is incidental mortalities caused by entanglement in fishing gear. As part of an ongoing study to evaluate the…

  • Phocoena phocoena
  • bycatch
  • comparison
  • conservation

A note on the skeletons of two Alaskan porpoises

Miller, G. S. Jr.
Smithsonian Miscellaneous Collections (1930)

(...) Skeletons of two Alaskan porpoises, Phocoena phocoena (Linnaeus) and Phocoenoides dalli (True), have recently been mounted in the United States National Museum. Before these skeletons were placed on exhibition…

  • Phocoenoides dalli
  • Phocoena phocoena
  • comparison
  • skeleton

A harbour porpoise, Phocoena phocoena (Linnaeus, 1758), from the Mackenzie River delta, Northwest Territories, Canada (Notes on Cetacea, Delphinoidea VIII)

Van Bree, P. J. H.; Sergeant, D. E.; Hoek, W.
Beaufortia (1977)

A Harbour Porpoise, Phocoena phocoena, taken from near Shallow Bay, Mackenzie River Delta, Northwest Territories (68°48’ N 136°35’ W) in July 1973 represents a range extension 800 km eastwards from…

  • Phocoena phocoena
  • behaviour
  • comparison
  • distribution
  • morphology
  • skeleton

Investigations on the osteology and the functional morphology of the flipper of whales and dolphins (Cetacea)

Benke, H.
Investigations on Cetacea (1993)

Of the 79 recent species of cetaceans 51 have been examined relative to the osteology of the flipper and the scapula and, in addition to this, video-recordings of 13 different…

  • Phocoena phocoena
  • Neophocaena phocaenoides
  • Neophocaena asiaeorientalis
  • Phocoena sinus
  • bottlenose dolphin
  • comparison
  • dolphin
  • killer whale
  • morphology
  • physiology
  • skeleton
  • whale

Perinatal growth of delphinoids: Information from aquarium reared bottlenose dolphins and finless porpoises

Kasuya, T.; Tobayama, T.; Saiga, T.; Kataoka, T.
Scientific Reports of the Whales Research Institute (1986)

The early postnatal growth of bottlenose dolphins and finless porpoises was studied using 97 body length records of 61 individuals born in aquariums. The growth rates observed were similar to…

  • Neophocaena asiaeorientalis
  • behaviour
  • bottlenose dolphin
  • captivity
  • comparison
  • growth
  • reproduction

Growth of Dall’s porpoise in the western north Pacific and suggested geographical growth differentiation

Kasuya, T.; Shiraga, S.
Scientific Reports of the Whales Research Institute (1985)

Some growth parameters of the western North Pacific dalli-type Dall's porpoise were estimated from 167 specimens taken with hand-held harpoons on two cruises and compared with data obtained previously from…

  • Phocoenoides dalli
  • comparison
  • growth
  • population structure
  • reproduction

Second record of spectacled porpoise from subantarctic southwest Pacific

Fordyce, R. E.; Mattlin, R. H.; Dixon, J. M.
Scientific Reports of the Whales Research Institute (1984)

An incomplete skull of unknown sex of a sub-adult spectacled porpoise (Phocoena dioptrica Lahille, 1912) was collected at Macquarie Island (54°30'S, 159°00'E) in July 1957. Cranial measurements are given, and…

  • Phocoena dioptrica
  • comparison
  • morphology
  • skeleton

Some observations on the schools of dalli- and truei-type Dall’s porpoises in the northwestern Pacific

Miyazaki, N.; Jones, L. L.; Beach, R.
Scientific Reports of the Whales Research Institute (1984)

During 349 hours of sighting surveys conducted from late June to early August 1979 in the northwestern North Pacific Ocean and the southern Bering Sea, 167 schools of Phocoenoides dalli…

  • Phocoenoides dalli
  • behaviour
  • coloration
  • comparison
  • distribution

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