scholarly journals Lack of behavioural responses of humpback whales (Megaptera novaeangliae) indicate limited effectiveness of sonar mitigation

2017 ◽  
Vol 220 (22) ◽  
pp. 4150-4161 ◽  
Author(s):  
Paul J. Wensveen ◽  
Petter H. Kvadsheim ◽  
Frans-Peter A. Lam ◽  
Alexander M. von Benda-Beckmann ◽  
Lise D. Sivle ◽  
...  
Keyword(s):  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Behavioural Responses ◽  
Limited Effectiveness

scholarly journals Behavioural Responses of Humpback Whales (Megaptera novaeangliae) to Two Acoustic Deterrent Devices in a Northern Feeding Ground off Iceland

2020 ◽  
Vol 46 (6) ◽  
pp. 584-602
Author(s):  
Charla J. Basran ◽  
Benno Woelfing ◽  
Charlotte Neumann ◽  
Marianne H. Rasmussen
Keyword(s):  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Behavioural Responses ◽  
Feeding Ground

scholarly journals The Behavioural Impacts of Commercial Swimming With Whale Tours on Humpback Whales (Megaptera novaeangliae) in Hervey Bay, Australia

2021 ◽  
Vol 8 ◽  
Author(s):  
Stephanie H. Stack ◽  
Kate R. Sprogis ◽  
Grace L. Olson ◽  
Florence A. Sullivan ◽  
Abigail F. Machernis ◽  
...  
Keyword(s):  
Management Strategies ◽  
Tourism Industry ◽  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Population Recovery ◽  
Energy Reserves ◽  
Baleen Whale ◽  
Short Term ◽  
Marine Tourism ◽  
Behavioural Responses

Swim-with-whale tourism has expanded across several countries globally, with humpback whales (Megaptera novaeangliae) being the most commonly targeted species of baleen whale. Behavioural responses from humpback whales to swim-with-whale tours have been reported, however, responses are likely context-dependent. In 2014, swimming with humpback whales began in Hervey Bay, Queensland, Australia, an important resting ground and migratory stopover for humpback whales. The behavioural responses of humpback whales to this swim-with-whale industry have not been examined in Queensland, preventing informed management of this industry. The aims of this study were to: (1) examine short-term behavioural responses in whales before, during, and after swim-with-whale tours, and (2) investigate behavioural responses of whales throughout swim-with-whale tours compared to whale watch tours. Data were collected on board a commercial vessel, where before, during and after data were collected during swim-with-whale tours (250 h) and whale watch tours (150 h). Within the swim-with-whale tours, behavioural changes were detected before, during, and after the vessel approached and placed swimmers in the water on a mermaid line, with the majority of significant changes occurring in the during and after phases. The number of direction changes made by the whales was highest when swimmers were in the water and the whales did not resume undisturbed behaviour after the swimmers exited the water. There was a 50% reduction in the proportion of time that whales spent resting during swim-tours compared to during whale watch tours. In both tour types, the time spent engaging in various behaviours was impacted by the distance between the vessel and the whale(s). These results support the conclusion that the behaviour of humpback whales in Hervey Bay was altered in response to swim-with-whale tourism. As humpback whales are capital breeders with limited energy reserves, reducing disturbance to them is of high importance for their continued population recovery and for the sustainability of the marine tourism industry. In Australia, where swim-with-whale tourism is becoming more established, robust education and enforcement programs, combined with continued monitoring of population dynamics through scientific research, are needed to minimise impacts to the population and guide adaptive management strategies.

Movements and Habitat Use by Southeast Pacific Humpback Whales (Megaptera novaeangliae) Satellite Tracked at Two Breeding Sites

2017 ◽  
Vol 43 (2) ◽  
pp. 139-155 ◽  
Author(s):  
Héctor M. Guzman ◽  
Fernando Félix
Keyword(s):  
Habitat Use ◽  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Breeding Sites ◽  
Southeast Pacific

Rough-Toothed Dolphins (Steno bredanensis) Catch Diskfishes while Interacting with Humpback Whales (Megaptera novaeangliae) off Abrolhos Bank Breeding Ground, Southwest Atlantic

2004 ◽  
Vol 30 (2) ◽  
pp. 327-329 ◽  
Author(s):  
Leonardo L. Wedekin ◽  
Ana Freitas ◽  
Márcia H. Engel ◽  
Ivan Sazima
Keyword(s):  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Breeding Ground ◽  
Southwest Atlantic ◽  
Steno Bredanensis

Steroid hormone profiles and body conditions of migrating male humpback whales (Megaptera novaeangliae)

2021 ◽  
Vol 313 ◽  
pp. 113888
Author(s):  
Greta Dalle Luche ◽  
Ashley S.P. Boggs ◽  
John R. Kucklick ◽  
Darryl W. Hawker ◽  
Jillian H. Wisse ◽  
...  
Keyword(s):  
Steroid Hormone ◽  
Megaptera Novaeangliae ◽  
Humpback Whales

Observations of parturition in humpback whales ( Megaptera novaeangliae ) and occurrence of escorting and competitive behavior around birthing females

2021 ◽  
Author(s):  
Nicola Ransome ◽  
Lars Bejder ◽  
Micheline Jenner ◽  
Gavin Penfold ◽  
Violeta J. Brosig ◽  
...  
Keyword(s):  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Competitive Behavior

Between-year synchrony in migratory timing of individual humpback whales,Megaptera novaeangliae

2012 ◽  
Vol 29 (1) ◽  
pp. 228-235 ◽  
Author(s):  
Daniel Burns ◽  
Lyndon Brooks ◽  
Phil Clapham ◽  
Peter Harrison
Keyword(s):  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Migratory Timing

scholarly journals Behavior of humpback whales, Megaptera novaeangliae (Cetacea: Balaenopteridae): comparisons between two coastal areas of Brazil

2008 ◽  
Vol 25 (2) ◽  
pp. 159-164 ◽  
Author(s):  
Diana G. Lunardi ◽  
Márcia H. Engel ◽  
Regina H. F. Macedo
Keyword(s):  
Group Composition ◽  
Coastal Areas ◽  
Reproductive Period ◽  
The State ◽  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Behavior Patterns ◽  
Northern Coast ◽  
Behavioral Differences

Behavior of humpback whales was observed during the reproductive period off the northern coast of the state of Bahia (NB, n = 378 groups) and at the Abrolhos Bank (AB, n = 919) to compare patterns and group composition between the two locations. Alone individuals and dyads were most often encountered in both areas, although mother-calf pairs were more common in AB. While these two regions comprise distinct concentrations of humpback whales, with intrinsic environmental differences, behavior patterns were quite similar. The only behavioral differences found where for "tail up" and "resting". The patterns found here may reflect differences in the protection status of the areas or intrinsic environmental differences.

Short Note: Seaweed Interactions by Humpback Whales (Megaptera novaeangliae): A Form of Object Play?

2012 ◽  
Vol 38 (4) ◽  
pp. 418-422 ◽  
Author(s):  
Kylie Owen
Keyword(s):  
Short Note ◽  
Megaptera Novaeangliae ◽  
Humpback Whales ◽  
Object Play
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