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Polar Bears. Polar bears, the iconic species of the Arctic, are the marine mammal that causes the most concern with regards to climate change and sea ice loss. The most ice-bound of the marine mammals, polar bears migrate hundreds and thousands of miles across sea ice.
Marine mammals are top predators in Arctic marine ecosystems and are key to ecosystem survival; Many Arctic marine mammal species are an important resource and hold special cultural significance in Arctic communities.
Seven species of marine mammals live in the Arctic year-round – the bowhead whale, beluga whale, narwhal, ringed seal, beaded seal, walrus, and polar bear - and many more migrate to the Arctic seasonally.
Arctic marine mammals are well adapted to the vagaries, fluctuations, and natural cycles of the Arctic Ocean. Climate change is impacting sea ice, posing a risk to Arctic marine food webs and ice-dependent species such as Arctic cod. 2 Large species are more impacted by disturbance and changes in the Arctic Ocean since they migrate long ...
1 Ιαν 2018 · Eleven species of Arctic marine mammals are highly associated with, or dependent on, sea ice for key aspects of their life history including foraging, reproduction, and movement. Approximately 24 other species forage in the Arctic seasonally.
For marine mammals, we present species richness within 12 marine regions defined generally by seas or archipelagos with some bathymetric or geographic separations. The quality of information on abundance varies a great deal among species and regions.
30 Απρ 2021 · PDF | This document provides an update on the status of marine mammals in the circumpolar Arctic from 2015– 2020 | Find, read and cite all the research you need on ResearchGate Technical...
