Results 81 to 90 of about 88,893 (343)

Indigenous communities and marine mammal tourism management: incorporating the perspectives of the indigenous Māori people of Aotearoa/New Zealand

Frontiers in Sustainable Tourism
IntroductionMany coastal and island indigenous people have long-standing important relationships with marine mammals. In many cases whales and dolphins have been viewed as spiritual beings with strong connections to indigenous people's histories, and ...
Yasmine M. Elmahdy, Mark Orams, Michael Lück, Heike Schänzel   +3 more
doaj   +1 more source

Discovery of sexual dimorphism of the laryngeal sac in the common minke whale Balaenoptera acutorostrata

The Anatomical Record, EarlyView.
Abstract Mysticetes, or baleen whales, have an air sac on the ventral surface of the larynx known as the “laryngeal sac.” The primary hypothesis regarding this structure's function is that it is involved in sound production. However, several other functions have been proposed, including air recycling, air storage, and even buoyancy control.
Gen Nakamura, Hiroko Yamada, Ayumi Hirose, Hikari Maeda, Joy S. Reidenberg, Hidehiro Kato, Shinho Park, Yoshihiro Fujise   +7 more
wiley   +1 more source

Quantifying the abundance and survival rates of island-associated spinner dolphins using a multi-state open robust design model

Scientific Reports
Spinner dolphins (Stenella longirostris subsp.) occupy the nearshore waters of several Hawaiian Islands. Due to their constrained behavioral pattern and genetic isolation, they are vulnerable to anthropogenic threats.
Liah McPherson, Janelle Badger, Kyleigh Fertitta, Madison Gordanier, Cameron Nemeth, Lars Bejder   +5 more
doaj   +1 more source

Practical Application of a Bioenergetic Model to Inform Management of a Declining Fur Seal Population and Their Commercially Important Prey

Frontiers in Marine Science, 2020
Food availability is a key concern for the conservation of marine top predators, particularly during a time when they face a rapidly changing environment and continued pressure from commercial fishing activities.
Elizabeth A. McHuron, Katie Luxa, Noel A. Pelland, Kirstin Holsman, Rolf Ream, Tonya Zeppelin, Jeremy T. Sterling   +6 more
doaj   +1 more source

Getting to the bottom of bycatch: a GIS-based toolbox to assess the risk of marine mammal bycatch [PDF]

, 2020
Ellen Hines, Louisa S. Ponnampalam, Chalatip Junchompoo, Cindy Peter, L Vu, T Huynh, Marjolaine Caillat, AF Johnson, Gianna Minton, RL Lewison, GM Verutes   +10 more
openalex   +1 more source

Anatolian ground squirrel (Spermophilus xanthoprymnus) retina: Comparative expression of synaptophysin, NeuN, calbindin‐D28k, parvalbumin, glial fibrillary acidic protein, and Iba‐1 during pre‐hibernation and hibernation

The Anatomical Record, EarlyView.
Abstract Hibernation induces significant molecular and cellular adaptations in the retina to maintain function under reduced metabolic conditions. This study aimed to investigate the expression of neuronal, synaptic, and glial markers in the retina of Spermophilus xanthoprymnus during pre‐hibernation and hibernation periods using immunohistochemical ...
Mehmet Özbek, Feyzullah Beyaz, Mustafa Öztop, Harun Karaca, Ahmet Cabir, Begüm Fatma Kiryar   +5 more
wiley   +1 more source

Underwater sound production of free-ranging Hawaiian monk seals

Royal Society Open Science
Hawaiian monk seals (HMS; Neomonachus schauinslandi) are endemic and endangered with a population of approximately 1600 individuals. While research has provided extensive information on HMS biology, movements and population ecology, its underwater vocal ...
Kirby Parnell, Caroline Smith, Adriana Diaz, Kyleigh Fertitta, Pearl Thompson, Philip T. Patton, Isabelle Charrier, Stacie J. Robinson, Aude Pacini, Lars Bejder   +9 more
doaj   +1 more source

Inflation and deflation pressure-volume loops in anesthetized pinnipeds confirms compliant chest and lungs

Frontiers in Physiology, 2014
We examined structural properties of the marine mammal respiratory system, and tested Scholander’s hypothesis that the chest is highly compliant by measuring the mechanical properties of the respiratory system in five species of pinniped under anesthesia
Andreas eFahlman, Stephen H Loring, Shawn P Johnson, Shawn P Johnson, Martin eHaulena, Andrew W Trites, Vanessa A Fravel, William George Van Bonn, William George Van Bonn   +8 more
doaj   +1 more source

Geospatial Technology: An Effective tool for marine mammal conservation [PDF]

, 2018
Geospatial Technology: An Effective tool for marine mammal ...
Jayasankar, J, Jeyabaskaran, R, John, Seban, Kripa, V, Lavanya, S, Padua, Shelton, Prema, D, Vysakhan, P   +7 more
core  

A contribution to the anatomy of two rare cetacean species: The hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica)

The Anatomical Record, EarlyView.
Abstract The anatomical description of the hourglass dolphin (Cephalorhynchus cruciger) and the spectacled porpoise (Phocoena dioptrica) remains largely unexplored, due to limited specimen availability and preservation challenges. This study employed digital imaging techniques, conventional histology, and computed tomography to provide visualization of
Jean‐Marie Graïc, Tommaso Gerussi, Bruno Cozzi, Rebecca M. Boys, Brian Chin Wing Kot, Matthew R. Perrott, Kane Fleury, Tabris Yik To Chung, Henry Chun Lok Tsui, Emma Burns, Trudi Webster, Stuart Hunter, Emma L. Betty, Odette Howarth, Carolina Loch, Sophie White, Steve Dawson, William Rayment, Ros Cole, Derek Cox, Tom Waterhouse, Hannah Hendriks, Anton van Helden, Muriel Johnstone, Ramari Oliphant Stewart, R. Ewan Fordyce, Karen A. Stockin   +26 more
wiley   +1 more source