Results 101 to 110 of about 3,607 (220)

Estimating the impact of bycatch and calculating bycatch limits to achieve conservation objectives as applied to harbour porpoise in the North Sea

open access: yes, 2009
Incidental catch, or bycatch, of harbour porpoise (Phocoena phocoena) in fishing operations is an international conservation issue. The main objective of this thesis was to develop methods for determining the impact of bycatch on the state and dynamics ...
Winship, Arliss
core  

On following pages: 3. Spectacled Porpoise (Phocoena dioptrica); 4. Burmeister's Porpoise (Phocoena spinipinnis); 5. Vaquita (Phocoena sinus); 6. Harbor Porpoise (Phocoena phocoena); 7. Dall's Porpoise (Phocoenoides dall). in Phocoenidae

open access: yes, 2014
On following pages: 3. Spectacled Porpoise (Phocoena dioptrica); 4. Burmeister's Porpoise (Phocoena spinipinnis); 5. Vaquita (Phocoena sinus); 6. Harbor Porpoise (Phocoena phocoena); 7.
Don E. Wilson, Russell A. Mittermeier
core   +1 more source

A risk‐based forecast of extreme mortality events in small cetaceans: Using stranding data to inform conservation practice

open access: yesConservation Letters, 2019
Effective conservation requires monitoring and pro‐active risk assessments. We studied the effects of at‐sea mortality events (ASMEs) in marine mammals over two decades (1990–2012) and built a risk‐based indicator for the European Union's Marine Strategy
Colin Bouchard   +6 more
doaj   +1 more source

Clicking for supper

open access: yeseLife, 2015
When close to prey, porpoises actively widen their sonar beam, which may make it harder for the prey to escape.
Peter Tyack
doaj   +1 more source

Phocoena phocoena_fulbody

open access: yes, 2016
Interactive PDF model of Phocoena phocoena full body. To activate the 3D feature click the model. Using the cursor it is now possible to rotate, zoom, pan the model and in the model tree all segments of the model can be turned on/off or made ...
Michael Pedersen (227448)   +9 more
core   +1 more source

Growth of the harbour porpoise (Phocoena phocoena) in eastern Newfoundland, Canada

open access: yesNAMMCO Scientific Publications, 2003
Although the stock relationships among harbour porpoise (Phocoena phocoena) in the Northwest Atlantic are unknown, it has been postulated that there are 4 local populations: Bay of Fundy/Gulf of Maine, Gulf of St.
S F Richardson, G B Stenson, C Hood
doaj   +1 more source

Geographic variation of skeletal ontogeny and skull shape in the harbour porpoise (Phocoena phocoena)

open access: yes, 2011
All extant porpoise species show paedomorphic skeletal traits. These traits are hypothesized to be connected with rapid growth to reproductive size and could thus show geographic variation according to ecological circumstances.
Gol´din, P.E.   +3 more
core   +1 more source

Phocoena phocoena - 85328, Zoological collection of the Mammal Research Institute, PAS

open access: yes, 2019
Phocoena phocoena (Harbour porpoise) from Zoological collection of the Mammal Research Institute PAS.
Mammal Research Institute, Polish Academy of Sciences
core   +1 more source

Phocoena G. Cuvier 1817

open access: yes, 1993
Phocoena G. Cuvier, 1817. Règne Anim., Nouv. ed., 1:279. TYPE SPECIES: Delphinus phocoena Linnaeus, 1758. SYNONYMS: Acanthodelphis. COMMENTS: Phocaena and Phocena are later spellings.Published as part of James G. Mead & Robert L.
Robert L. Brownell, Jr., James G. Mead
core   +1 more source

Status of the Harbour Porpoise, Phocoena phocoena, in Canada

open access: yesThe Canadian field-naturalist, 1992
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

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