Reduced survival of Steller sea lions in the Gulf of Alaska following marine heatwave
Frontiers in Marine Science, 2023 The North Pacific marine heatwave of 2014–2016 (PMH), one of the most geographically-extensive and severe marine heatwaves on record, resulted in widespread and persistent perturbation of the Gulf of Alaska and California Current ecosystems.
Kelly K. Hastings +6 more
doaj +1 more source
Transcriptome of the dead: characterisation of immune genes and marker development from necropsy samples in a free-ranging marine mammal [PDF]
, 2013 Background Transcriptomes are powerful resources, providing a window on the expressed portion of the genome that can be generated rapidly and at low cost for virtually any organism.
Forcada, Jaume +3 more
core +3 more sources
Multi-tissue DNA methylation aging clocks for sea lions, walruses and seals
Communications Biology, 2023 DNA methylation aging clocks are generated for several species of pinnipeds enabling the estimation of pinniped age from blood or skin samples.
Todd R. Robeck +10 more
doaj +1 more source
DNA extraction from formalin-fixed Franciscana tissues [PDF]
, 2002 The present paper reports the extraction of DNA from formalin-fixed Pontoporia blainvillei tissues. Following the Vachot and Monerot (1996) protocol, fragmented DNA (300-700bp) was extracted from more than 95% of liver and muscle samples.
Bastida, R. +2 more
core +2 more sources
A global cline in a colour polymorphism suggests a limited contribution of gene flow towards the recovery of a heavily exploited marine mammal [PDF]
Royal Society Open Science, 2018 Evaluating how populations are connected by migration is important for understanding species resilience because gene flow can facilitate recovery from demographic declines.
J. I. Hoffman +21 more
doaj +1 more source
Drones, 2023 Research on the ecology and biology of marine mammal populations is necessary to understand ecosystem dynamics and to support conservation management.
Miguel Álvarez-González +3 more
doaj +1 more source
Improvement in survivorship: The key for population recovery? [PDF]
, 2016 In northern Patagonia, commercial harvesting of South American sea lions, Otaria flavescens, from 1920 to 1960, decimated its population abundance. Population recovery was not immediate after hunting ceased in 1962.
Crespo, Enrique Alberto +2 more
core +1 more source
Population structure and historical demography of South American sea lions provide insights into the catastrophic decline of a marine mammal population [PDF]
Royal Society Open Science, 2016 Understanding the causes of population decline is crucial for conservation management. We therefore used genetic analysis both to provide baseline data on population structure and to evaluate hypotheses for the catastrophic decline of the South American ...
J. I. Hoffman +5 more
doaj +1 more source
Individual variation in pup vocalizations and absence of behavioral signs of maternal vocal recognition in Weddell seals (Leptonychotes weddellii) [PDF]
, 2012 Individually stereotyped vocalizations often play an important role in relocation of offspring in gregarious breeders. In phocids, mothers often alternate between foraging at sea and attending their pup.
Boebel, Olaf +4 more
core +1 more source
Endangered Species ResearchThe Mediterranean monk seal Monachus monachus is one of the most endangered marine mammals on Earth. The species has made a notable recovery during the past 10 yr and is now considered Vulnerable by the International Union for the Conservation of Nature.
AA Karamanlidis
doaj +1 more source