Results 41 to 50 of about 131,638 (138)

Netting and conventional tagging used to study movements of ringed seals (Phoca hispida) in Greenland

NAMMCO Scientific Publications, 1998
Seven studies of netting and tagging of ringed seals (Phoca hispida) in Greenland 1976-1997 are described. The areas of operation were: northern part of the Upernavik area (Northwest Greenland), Kong Oscars Fjord (Northeast Greenland), and Avanersuaq ...
Finn O Kapel, Jens Christiansen, Mads Peter Heide-Jørgensen, Tero Härkönen, Erik W Born, Lars Øivind Knutsen, Frank Riget, Jonas Teilmann   +7 more
doaj   +1 more source

Abundance and distribution of ringed and bearded seals in the Chukchi Sea: a reference for future trends

Arctic Science
Ringed (Pusa hispida) and bearded (Erignathus barbatus) seals are vulnerable to decreasing sea ice habitat in the rapidly warming Arctic. In April and May 2016, we conducted an aerial survey over the ice-covered areas of the Chukchi Sea using thermal and
Peter L. Boveng, Vladimir I. Chernook, Erin E. Moreland, Paul B. Conn, Irina S. Trukhanova, Michael F. Cameron, Cynthia L. Christman, Justin A. Crawford, Dmitry M. Glazov, Lois Harwood, Benjamin X. Hou, Stacie M. Koslovsky, Jessica M. Lindsay, Denis I. Litovka, Josh M. London, Brett T. McClintock, Nikita Platonov, Lori Quakenbush, Erin L. Richmond, Alexander Vasiliev, Andrew L. Von Duyke, Amy Willoughby   +21 more
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

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

Results of instrumental aerial survey of ice-associated seals on the ice in the Okhotsk Sea in May 2013

Известия ТИНРО, 2014
Populations of ice-associated seals in the Okhotsk Sea are assessed using modern instrumental aerial technique. The aerial survey was conducted over a part of the ice-covered area of the Sea on May 1-9, 2013 by means of thermal scan and visual digital ...
Vladimir I. Chernook, Aleksey I. Grachev, Alexandr N. Vasiliev, Irina S. Trukhanova, Vladimir N. Burkanov, Boris A. Solovyev   +5 more
doaj   +1 more source

Molting phenology of a lacustrine ringed seal, Pusa hispida saimensis

Ecology and Evolution, 2022
The timing and effect of a range of environmental variables on the annual molt of ringed seals (Pusa hispida saimensis) in Lake Saimaa were studied in 2013–2019. Molting patterns were investigated by mixed models run on photoidentification data collected
Marja Niemi, Milaja Nykänen, Vincent Biard, Mika Kurkilahti, Mervi Kunnasranta   +4 more
doaj   +1 more source

SealID: Saimaa Ringed Seal Re-Identification Dataset

Sensors, 2022
Wildlife camera traps and crowd-sourced image material provide novel possibilities to monitor endangered animal species. The massive data volumes call for automatic methods to solve various tasks related to population monitoring, such as the re ...
Ekaterina Nepovinnykh, Tuomas Eerola, Vincent Biard, Piia Mutka, Marja Niemi, Mervi Kunnasranta, Heikki Kälviäinen   +6 more
doaj   +1 more source

Description of the tagged Saimaa ringed seals.

, 2019
Description of the tagged Saimaa ringed seals.
Meeri Koivuniemi (6175784), Lauri Liukkonen (6175781), Marja Niemi (1917991), Miina Auttila (6175787), Anni Rautio (6175790), Mervi Kunnasranta (740810)   +5 more
core   +1 more source

Re-examination of population structure in Arctic ringed seals using DArTseq genotyping

Endangered Species Research, 2021
Although Arctic ringed seals Phoca hispida hispida are currently abundant and broadly distributed, their numbers are projected to decline substantially by the year 2100 due to climate warming.
AR Lang, P Boveng, L Quakenbush, K Robertson, M Lauf, KD Rode, H Ziel, BL Taylor   +7 more
doaj   +1 more source

Ringed seal (Pusa hispida) breeding habitat on the landfast ice in northwest Alaska during spring 1983 and 1984.

PLoS ONE, 2021
There has been significant sea ice loss associated with climate change in the Pacific Arctic, with unquantified impacts to the habitat of ice-obligate marine mammals such as ringed seals (Pusa hispida).
Donna D W Hauser, Kathryn J Frost, John J Burns   +2 more
doaj   +1 more source