scholarly journals The Auditory Anatomy of the Minke Whale ( Balaenoptera acutorostrata ): A Potential Fatty Sound Reception Pathway in a Baleen Whale

2012 ◽  
Vol 295 (6) ◽  
pp. 991-998 ◽  
Author(s):  
Maya Yamato ◽  
Darlene R. Ketten ◽  
Julie Arruda ◽  
Scott Cramer ◽  
Kathleen Moore
Keyword(s):  
Minke Whale ◽  
Baleen Whale ◽  
Balaenoptera Acutorostrata ◽  
Sound Reception

Severe mutilation of a baleen whale in a longline fishery off the Brazilian coast

2015 ◽  
Vol 8 ◽  
Author(s):  
Flavia C.F. Pinheiro ◽  
Salvatore Siciliano ◽  
Jailson F. de Moura ◽  
Davi C. Tavares
Keyword(s):  
Atlantic Ocean ◽  
Minke Whale ◽  
Brazilian Coast ◽  
Fishing Gear ◽  
Longline Fishery ◽  
Baleen Whale ◽  
Balaenoptera Acutorostrata ◽  
Baleen Whales ◽  
South West ◽  
Longline Fisheries

The interaction between baleen whales and longline fisheries is poorly known worldwide and likely underestimated. This article presents one of the most severe scenarios of this interaction; an incident that resulted in the severe mutilation of the entire fluke of a whale and probably lead to its death. Considering the characteristic of the fluke, we strongly suggest that the fluke belonged to a small balaenopterid, most likely a dwarf minke whale (Balaenoptera acutorostrata). The episode reported here seems to be the first in its nature involving a baleen whale entangled in longline fishing gear off the Brazilian coast, and so, it represents, at the very least, the need for further investigation into the magnitude of such interactions in the south-west Atlantic Ocean.

New genetic evidences for distinct populations of the common minke whale (Balaenoptera acutorostrata) in the Southern Hemisphere

Polar Biology ◽  
2021 ◽  
Author(s):  
Lucas Milmann ◽  
Mioko Taguchi ◽  
Salvatore Siciliano ◽  
Júlio E. Baumgarten ◽  
Larissa R. Oliveira ◽  
...  
Keyword(s):  
Southern Hemisphere ◽  
Minke Whale ◽  
Balaenoptera Acutorostrata ◽  
The Common ◽  
Common Minke Whale

scholarly journals Whales as Indicators of Historical and Current Changes in the Marine Ecosystem of the Indo-Pacific Sector of the Antarctic

2020 ◽  
Author(s):  
Yoshihiro Fujise ◽  
Luis A. Pastene
Keyword(s):  
Marine Ecosystem ◽  
Recruitment Rate ◽  
Minke Whale ◽  
Past Century ◽  
Baleen Whale ◽  
The Past ◽  
Antarctic Minke Whale ◽  
Minke Whales ◽  
Nutritional Conditions ◽  
The Antarctic

We review the scientific information on whales that could be indicative of historical and current changes in the ecosystem in the Indo-Pacific sector of the Antarctic. The increased krill availability in the middle of the past century as a result of the heavy harvesting of the larger baleen whale species could have been translated into better nutritional conditions for the Antarctic minke whale, resulting in a decreasing trend in the age at sexual maturity and an increasing trend in recruitment rate and hence total population size between approximately 1940 and 1970. This nutritional condition has deteriorated more recently, as revealed by a decrease in energy storage and stomach content weight since the 1980’s; these changes coincide with appreciable increases in the abundances of humpback and fin whales, which were heavily harvested in the first half of the past century. The historical demographic changes observed in the Antarctic minke whale are consistent with the pattern to be expected under the krill surplus hypothesis, with minke whales now again competing with other (recovering) baleen whale species for krill. However, these minke whales could also be using alternative feeding areas (e.g. polynias within the pack-ice) in response to the increase in abundance and geographical expansion of these other large whale species. This could provide an alternative explanation for indications from sighting surveys and population models of a decrease and then re-stabilisation of minke whale abundance in open water areas since the 1970s.

Histological Observation of the Proper Gastric Gland in Minke Whale, Balaenoptera acutorostrata

2003 ◽  
Vol 65 (3) ◽  
pp. 423-426 ◽  
Author(s):  
Tetsuya SHIMOKAWA ◽  
Daishiro YAMAGIWA ◽  
Eiichi HONDO ◽  
Shigetoshi NISHIWAKI ◽  
Yasuo KISO ◽  
...  
Keyword(s):  
Gastric Gland ◽  
Minke Whale ◽  
Histological Observation ◽  
Balaenoptera Acutorostrata

scholarly journals Automatic Sorting of Dwarf Minke Whale Underwater Images

Information ◽  
2020 ◽  
Vol 11 (4) ◽  
pp. 200 ◽  
Author(s):  
Dmitry A. Konovalov ◽  
Natalie Swinhoe ◽  
Dina B. Efremova ◽  
R. Alastair Birtles ◽  
Martha Kusetic ◽  
...  
Keyword(s):  
False Negative ◽  
False Negative Rate ◽  
Minke Whale ◽  
Balaenoptera Acutorostrata ◽  
Classification Rate ◽  
Near Surface ◽  
Photo Identification ◽  
Video Footage ◽  
Positive Classification ◽  
June July

A predictable aggregation of dwarf minke whales (Balaenoptera acutorostrata subspecies) occurs annually in the Australian waters of the northern Great Barrier Reef in June–July, which has been the subject of a long-term photo-identification study. Researchers from the Minke Whale Project (MWP) at James Cook University collect large volumes of underwater digital imagery each season (e.g., 1.8TB in 2018), much of which is contributed by citizen scientists. Manual processing and analysis of this quantity of data had become infeasible, and Convolutional Neural Networks (CNNs) offered a potential solution. Our study sought to design and train a CNN that could detect whales from video footage in complex near-surface underwater surroundings and differentiate the whales from people, boats and recreational gear. We modified known classification CNNs to localise whales in video frames and digital still images. The required high classification accuracy was achieved by discovering an effective negative-labelling training technique. This resulted in a less than 1% false-positive classification rate and below 0.1% false-negative rate. The final operation-version CNN-pipeline processed all videos (with the interval of 10 frames) in approximately four days (running on two GPUs) delivering 1.95 million sorted images.

scholarly journals Abiotrophia balaenopterae sp. nov., isolated from the minke whale (Balaenoptera acutorostrata)

1999 ◽  
Vol 49 (2) ◽  
pp. 503-506 ◽  
Author(s):  
Paul A. Lawson ◽  
Geoffrey Foster ◽  
Enevold Falsen ◽  
Berit Sjödén ◽  
Matthew D. Collins
Keyword(s):  
Minke Whale ◽  
Balaenoptera Acutorostrata

scholarly journals Organization of the sleep-related neural systems in the brain of the minke whale (Balaenoptera acutorostrata)

2015 ◽  
Vol 524 (10) ◽  
pp. 2018-2035 ◽  
Author(s):  
Leigh-Anne Dell ◽  
Karl AE. Karlsson ◽  
Nina Patzke ◽  
Muhammad A. Spocter ◽  
Jerome M. Siegel ◽  
...  
Keyword(s):  
Minke Whale ◽  
Neural Systems ◽  
Balaenoptera Acutorostrata ◽  
The Brain
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