Results 21 to 30 of about 16,641 (277)
Endangered Species Research, 2017 The population of beluga whales in Cook Inlet, Alaska, USA, declined by nearly half in the mid-1990s, primarily from an unsustainable harvest, and was listed as endangered in 2008.
Small, RJ +4 more
doaj +1 more source
Validation of Growth Layer Group (GLG) depositional rate using daily incremental growth lines in the dentin of beluga (Delphinapterus leucas (Pallas, 1776)) teeth. [PDF]
PLoS ONE, 2018 Counts of Growth Layer Groups (GLGs) in the dentin of marine mammal teeth are widely used as indicators of age. In most marine mammals, observations document that GLGs are deposited yearly, but in beluga whales, some studies have supported the view that ...
David A Waugh +3 more
doaj +1 more source
Arctic Science, 2018 The Eastern Beaufort Sea (EBS) beluga (Delphinapterus leucas) population are an important traditional food for the Inuit of the Inuvialuit Settlement Region, Northwest Territories (NT) Canada.
Lisa L. Loseto +8 more
doaj +1 more source
Bulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca. Animal Science and Biotechnologies, 2018 Construction of the dams in Lower Danube River (LDR- rkm 0 Sulina – rkm 1075 Baziasi) without fish passages, as well as illegal fishery and river bottom modification due to navigation had negative impact on sturgeon’s populations.
Ștefan HONŢ +5 more
doaj +1 more source
Serological Detection of Marine Origin Brucella Exposure in Two Alaska Beluga Stocks
Animals, 2022 Among emerging threats to the Arctic is the introduction, spread, or resurgence of disease. Marine brucellosis is an emerging disease concern among free-ranging cetaceans and is less well-studied than terrestrial forms.
Laura A. Thompson +6 more
doaj +1 more source
Acoustic behavior of melon-headed whales varies on a diel cycle. [PDF]
, 2015 Many terrestrial and marine species have a diel activity pattern, and their acoustic signaling follows their current behavioral state. Whistles and echolocation clicks on long-term recordings produced by melon-headed whales (Peponocephala electra) at ...
Baumann-Pickering, Simone +4 more
core +2 more sources
Sturgeon caviar and cardiovascular diseases, Caspian Sea wild and farmed beluga, Huso huso caviar and their lipid quality indices [PDF]
Caspian Journal of Environmental Sciences, 2021 The objective was to investigate the detailed information about proximate, fatty acid compositions and lipid quality indices in the caviar of wild and farmed beluga, Huso huso from Iran.
Shahrzad Barimani +3 more
doaj +1 more source
Transitions of social-ecological subsistence systems in the Arctic [PDF]
, 2017 Transitions of social-ecological systems (SES) expose governance systems to new challenges. This is particularly so in the Arctic where resource systems are increasingly subjected to global warming, industrial development and globalization which ...
Clark, Douglas A. +3 more
core +4 more sources
Improved Beluga Whale Optimization for RFID Network Planning [PDF]
Jisuanji kexueWith the development of radio frequency identification(RFID) technology,the demand for its application is getting higher and higher,and the research in reader deployment is gradually deepening.In order to solve the RFID reader location planning problem ...
CHEN Yijun, ZHENG Jiali, LI Zhiqian, ZHANG Jiangbo, ZHU Xinghong
doaj +1 more source
Detection and tracking of belugas, kayaks and motorized boats in drone video using deep learning1
Drone Systems and Applications, 2022 Aerial imagery surveys are commonly used in marine mammal research to determine population size, distribution and habitat use. Analysis of aerial photos involves hours of manually identifying individuals present in each image and converting raw counts ...
Madison L. Harasyn +3 more
doaj +1 more source