Results 31 to 40 of about 119,975 (244)

Status and biology of Saimaa (Phoca hispida saimensis) and Ladoga (Phoca hispida ladogensis) ringed seals

NAMMCO Scientific Publications, 1998
Saimaa (Phoca hispida saimensis) and Ladoga (P. h. ladogensis) seals are subspecies of ringed seals that live in freshwater lakes. The founding populations for these two subspecies became separated from Arctic ringed seals (P. h. hispida) during the last
Tero Sipilä, Heikki Hyvärinen
doaj   +1 more source

Variation in body size of ringed seals (Pusa hispida hispida) across the circumpolar Arctic: evidence of morphs, ecotypes or simply extreme plasticity?

Polar Research, 2021
The ringed seal is a small phocid seal that has a northern circumpolar distribution. It has long been recognized that body size is variable in ringed seals, and it has been suggested that ecotypes that differ in size exist.
Kit M. Kovacs, John Citta, Tanya Brown, Rune Dietz, Steve Ferguson, Lois Harwood, Magali Houde, Ellen V. Lea, Lori Quakenbush, Frank Riget, Aqqalu Rosing-Asvid, Tom G. Smith, Vladimir Svetochev, Olga Svetocheva, Christian Lydersen   +14 more
doaj   +1 more source

Automatic individual identification of Saimaa ringed seals

IET Computer Vision, 2018
In order to monitor an animal population and to track individual animals in a non‐invasive way, identification of individual animals based on certain distinctive characteristics is necessary. In this study, automatic image‐based individual identification
Tina Chehrsimin, Tuomas Eerola, Meeri Koivuniemi, Miina Auttila, Riikka Levänen, Marja Niemi, Mervi Kunnasranta, Heikki Kälviäinen   +7 more
doaj   +1 more source

A novel tool to mitigate by-catch mortality of baltic seals in coastal fyke net fishery.

PLoS ONE, 2015
Developing methods to reduce the incidental catch of non-target species is important, as by-catch mortality poses threats especially to large aquatic predators.
Sari M Oksanen, Markus P Ahola, Jyrki Oikarinen, Mervi Kunnasranta   +3 more
doaj   +1 more source

Catch history of ringed seals (Phoca hispida) in Canada

NAMMCO Scientific Publications, 1998
The ringed seal (Phoca hispida) has always been a staple in the diet and household economy of Inuit in Canada. The present paper was prepared at the request of the NAMMCO Scientific Committee to support their assessment of ringed seal stocks in the North
Randall R Reeves, George W Wenzel, Michael CS Kingsley   +2 more
doaj   +1 more source

Toxoplasma gondii, Sarcocystis sp. and Neospora caninum-like parasites in seals from northern and eastern Canada: potential risk to consumers

Food and Waterborne Parasitology, 2019
Zoonotic parasites of seals that are harvested for food may pose a health risk when seal meat or organ tissues of infected animals are eaten raw or undercooked. In this study, 124 tissue samples from 81 seals, comprising four species, were collected from
Sarah J. Reiling, Lena Measures, Sandy Feng, Ryan Boone, Harriet Merks, Brent R. Dixon   +5 more
doaj   +1 more source

Screening for Influenza and Morbillivirus in Seals and Porpoises in the Baltic and North Sea

Pathogens, 2023
Historically, the seals and harbour porpoises of the Baltic Sea and North Sea have been subjected to hunting, chemical pollutants and repeated mass mortalities, leading to significant population fluctuations. Despite the conservation implications and the
Iben Stokholm, Christine Baechlein, Sara Persson, Anna Roos, Anders Galatius, Line Anker Kyhn, Signe Sveegaard, Charlotte Bie Thøstesen, Morten Tange Olsen, Paul Becher, Ursula Siebert   +10 more
doaj   +1 more source

The Ringed Seal Search algorithm.

, 2016
The Ringed Seal Search algorithm.
Vimala Balakrishnan (847130), Anhar Risnumawan (847131), Tutut Herawan (787202), Younes Saadi (5666533), Haruna Chiroma (787195), Iwan Tri Riyadi Yanto (847129)   +5 more
core   +1 more source

The peace-loving Saimaa ringed seal : How to move on the waters and ice of Saimaa [PDF]

, 2021
The Saimaa ringed seal loves the peace and quiet of the national landscape of Saimaa. They especially need their peace in early spring and summer. By following these guidelines, let’s make sure the endangered ringed seal can continue its life in Saimaa ...

core   +1 more source

The commercial harvest of ice-associated seals in the Sea of Okhotsk, 1972-1994.

PLoS ONE, 2017
Sealing log books from 75 out of 79 commercial harvest cruises carried out between 1972 and 1994 in the Sea of Okhotsk, Russia, were analyzed to describe spatial and temporal allocation of ice-associated seal harvest effort, species composition of ...
Irina S Trukhanova, Aleksey I Grachev, Aleksandr G Somov, Vladimir N Burkanov, Kristin L Laidre, Peter L Boveng   +5 more
doaj   +1 more source