scholarly journals Acoustic Monitoring of Beluga Whale Interactions with Cook Inlet Tidal Energy Project

2014 ◽  
Author(s):  
Monty Worthington
Keyword(s):  
Tidal Energy ◽  
Acoustic Monitoring ◽  
Beluga Whale ◽  
Cook Inlet

Improving passive acoustic monitoring applications to the endangered Cook inlet beluga whale

2019 ◽  
Vol 146 (4) ◽  
pp. 3089-3089
Author(s):  
Ming Zhong ◽  
Manuel Castellote ◽  
Rahul Dodhia ◽  
Juan Lavista Ferres ◽  
Mandy Keogh ◽  
...  
Keyword(s):  
Acoustic Monitoring ◽  
Beluga Whale ◽  
Passive Acoustic Monitoring ◽  
Cook Inlet ◽  
Monitoring Applications ◽  
Passive Acoustic

Dual instrument passive acoustic monitoring of belugas in Cook Inlet, Alaska

2016 ◽  
Vol 139 (5) ◽  
pp. 2697-2707 ◽  
Author(s):  
Manuel Castellote ◽  
Robert J. Small ◽  
Marc O. Lammers ◽  
Justin J. Jenniges ◽  
Jeff Mondragon ◽  
...  
Keyword(s):  
Acoustic Monitoring ◽  
Passive Acoustic Monitoring ◽  
Cook Inlet ◽  
Passive Acoustic

Acoustic monitoring of beluga whales (Delphinapterus leucas) in Cook Inlet, Alaska

2011 ◽  
Vol 130 (4) ◽  
pp. 2459-2459
Author(s):  
Manuel Castellote ◽  
Robert J. Small ◽  
Shannon Atkinson ◽  
Marc O. Lammers ◽  
Justin jenniges ◽  
...  
Keyword(s):  
Acoustic Monitoring ◽  
Delphinapterus Leucas ◽  
Cook Inlet ◽  
Beluga Whales

scholarly journals Audiogram of a Cook Inlet beluga whale (Delphinapterus leucas)

2020 ◽  
Vol 148 (5) ◽  
pp. 3141-3148
Author(s):  
T. Aran Mooney ◽  
Manuel Castellote ◽  
Ian Jones ◽  
Natalie Rouse ◽  
Teri Rowles ◽  
...  
Keyword(s):  
Beluga Whale ◽  
Delphinapterus Leucas ◽  
Cook Inlet ◽  
Beluga Whale Delphinapterus Leucas

scholarly journals Skin microbiome of beluga whales: spatial, temporal, and health-related dynamics

2020 ◽  
Vol 2 (1) ◽  
Author(s):  
Amy M. Van Cise ◽  
Paul R. Wade ◽  
Caroline E. C. Goertz ◽  
Kathy Burek-Huntington ◽  
Kim M. Parsons ◽  
...  
Keyword(s):  
Microbial Communities ◽  
Beluga Whale ◽  
Rrna Genes ◽  
Skin Microbiome ◽  
Cook Inlet ◽  
Bristol Bay ◽  
Tissue Samples ◽  
Beluga Whales ◽  
Health Indices ◽  
Endangered Population

Abstract Background Host-specific microbiomes play an important role in individual health and ecology; in marine mammals, epidermal microbiomes may be a protective barrier between the host and its aqueous environment. Understanding these epidermal-associated microbial communities, and their ecological- or health-driven variability, is the first step toward developing health indices for rapid assessment of individual or population health. In Cook Inlet, Alaska, an endangered population of beluga whales (Delphinapterus leucas) numbers fewer than 300 animals and continues to decline, despite more than a decade of conservation effort. Characterizing the epidermal microbiome of this species could provide insight into the ecology and health of this endangered population and allow the development of minimally invasive health indicators based on tissue samples. Results We sequenced the hypervariable IV region of bacterial and archaeal SSU rRNA genes from epidermal tissue samples collected from endangered Cook Inlet beluga whales (n = 33) and the nearest neighboring population in Bristol Bay (n = 39) between 2012 and 2018. We examined the sequences using amplicon sequence variant (ASV)-based analyses, and no ASVs were associated with all individuals, indicating a greater degree of epidermal microbiome variability among beluga whales than in previously studied cetacean species and suggesting the absence of a species-specific core microbiome. Epidermal microbiome composition differed significantly between populations and across sampling years. Comparing the microbiomes of Bristol Bay individuals of known health status revealed 11 ASVs associated with potential pathogens that differed in abundance between healthy individuals and those with skin lesions or dermatitis. Molting and non-molting individuals also differed significantly in microbial diversity and the abundance of potential pathogen-associated ASVs, indicating the importance of molting in maintaining skin health. Conclusions We provide novel insights into the dynamics of Alaskan beluga whale epidermal microbial communities. A core epidermal microbiome was not identified across all animals. We characterize microbial dynamics related to population, sampling year and health state including level of skin molting. The results of this study provide a basis for future work to understand the role of the skin microbiome in beluga whale health and to develop health indices for management of the endangered Cook Inlet beluga whales, and cetaceans more broadly.

scholarly journals Beluga whale (Delphinapterus leucas) acoustic foraging behavior and applications for long term monitoring

PLoS ONE ◽  
2021 ◽  
Vol 16 (11) ◽  
pp. e0260485
Author(s):  
Manuel Castellote ◽  
Aran Mooney ◽  
Russel Andrews ◽  
Stacy Deruiter ◽  
Wu-Jung Lee ◽  
...  
Keyword(s):  
Foraging Behavior ◽  
Acoustic Monitoring ◽  
Delphinapterus Leucas ◽  
Healthy Population ◽  
Ecological Knowledge ◽  
Foraging Habitat ◽  
Passive Acoustic Monitoring ◽  
Cook Inlet ◽  
Passive Acoustic

Cook Inlet, Alaska, is home to an endangered and declining population of 279 belugas (Delphinapterus leucas). Recovery efforts highlight a paucity of basic ecological knowledge, impeding the correct assessment of threats and the development of recovery actions. In particular, information on diet and foraging habitat is very limited for this population. Passive acoustic monitoring has proven to be an efficient approach to monitor beluga distribution and seasonal occurrence. Identifying acoustic foraging behavior could help address the current gap in information on diet and foraging habitat. To address this conservation challenge, eight belugas from a comparative, healthy population in Bristol Bay, Alaska, were instrumented with a multi-sensor tag (DTAG), a satellite tag, and a stomach temperature transmitter in August 2014 and May 2016. DTAG deployments provided 129.6 hours of data including foraging and social behavioral states. A total of 68 echolocation click trains ending in terminal buzzes were identified during successful prey chasing and capture, as well as during social interactions. Of these, 37 click trains were successfully processed to measure inter-click intervals (ICI) and ICI trend in their buzzing section. Terminal buzzes with short ICI (minimum ICI <8.98 ms) and consistently decreasing ICI trend (ICI increment range <1.49 ms) were exclusively associated with feeding behavior. This dual metric was applied to acoustic data from one acoustic mooring within the Cook Inlet beluga critical habitat as an example of the application of detecting feeding in long-term passive acoustic monitoring data. This approach allowed description of the relationship between beluga presence, feeding occurrence, and the timing of spawning runs by different species of anadromous fish. Results reflected a clear preference for the Susitna River delta during eulachon (Thaleichthys pacificus), Chinook (Oncorhynchus tshawytscha), pink (Oncorhynchus gorbuscha), and coho (Oncorhynchus kisutch) salmon spawning run periods, with increased feeding occurrence at the peak of the Chinook and pink salmon runs.

Recent ecological insights into the endangered Cook Inlet beluga via acoustic monitoring

2021 ◽  
Vol 150 (4) ◽  
pp. A46-A47
Author(s):  
Manuel Castellote ◽  
Lori Polasek ◽  
Justin Olnes ◽  
Christopher Garner ◽  
Brian Taras ◽  
...  
Keyword(s):  
Acoustic Monitoring ◽  
Cook Inlet

Ocean acoustic effects of explosions on land: Evaluation of Cook Inlet beluga whale habitability

2007 ◽  
Vol 122 (5) ◽  
pp. 3002
Author(s):  
Sara K. Tremblay ◽  
Thomas S. Anderson ◽  
Erin C. Pettit ◽  
Peter M. Scheifele ◽  
Gopu R. Potty ◽  
...  
Keyword(s):  
Beluga Whale ◽  
Land Evaluation ◽  
Cook Inlet
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