In‐situ observations of the sensory hairs of Antarctic minke whales (<scp><i>Balaenoptera bonaerensis</i></scp>)

Reichmuth, Colleen; Casey, Caroline; Friedlaender, Ari S.

doi:10.1002/ar.24720

Cited by 5 publications

(2 citation statements)

References 11 publications

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“…Access to temporarily constrained mysticete whales would not only allow for studies of hearing (AEP measurements), but potentially other aspects of sensory physiology, such as sight (Creutzfeldt & Kuhnt, 1973) or tactile senses (Markand, 2020). The potential importance of tactile senses was recently demonstrated in an anatomical study of the Antarctic minke whale where it was proposed that the distributed rigid sensory hairs on the "chin" are used to detect prey and the interface of air and ice (Reichmuth et al, 2022). Other aspects of physiology could also be pursued, such as respirometry (Wahrenbrock et al, 1974), cardiography (Smith & Wahrenbrock, 1974), ultrasonography (Curran & Asher, 1974), tissue (histology) and blood related physiology (hematology, Catching minke whales for experimental research 20 endocrinology, biochemistry panels, lipid analysis, stable isotopes, metabolomics, molecular diagnostics of various diseases), morphometrics (Reidarson et al, 2001), and aspects of animal bioacoustics (Winn et al, 1979).…”

Section: Future Prospectsmentioning

confidence: 99%

Capture and Release of Minke Whales Offers New Research Opportunities Including Measurements of Mysticete Hearing

Kleivane,

Kvadsheim,

Vinje

et al. 2024

Preprint

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Knowledge about species-specific hearing is vital to assessing how anthropogenic noise impacts marine mammals. Unfortunately, no empirical audiogram exists for any mysticete whale. We therefore developed a catch-and-release method to assess hearing in a small mysticete, the minke whale (Balaenoptera acutorostrata). Stationary lead nets were placed to intercept migratory routes and direct animals into an ocean basin enclosed by nets and islets, while another net was pulled across the entrance once a whale entered the basin. The whales were then slowly corralled into a modified aquaculture pen using a net suspended between two boats. Subsequently, the water volume available to the whales was gradually reduced by raising the pen net by hand until the whales were secured in a “hammock” between the floating pen ring and a raft. From the raft, researchers could access the whales to monitor their health, apply instruments for hearing tests, or other research objectives, and attach tags to monitor the movements and diving behavior of the whale post-release. The method is a slow and controlled procedure, allowing continuous monitoring, and quick release of the whales, if needed. In the first three field seasons employing the method, three animals were caught for research procedures. Initial hearing measurements using auditory evoked potentials were successfully completed. After release the animals resumed migration and dive behavior were considered normal. Our observations demonstrate that minke whales can be safely guided via moored net barriers, corralled into an aquaculture pen, and safely handled for research purposes, before being released back into the wild.

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Section: Future Prospectsmentioning

confidence: 99%

Capture and Release of Minke Whales Offers New Research Opportunities Including Measurements of Mysticete Hearing

Kleivane,

Kvadsheim,

Vinje

et al. 2024

Preprint

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“…Mysticetes of all species studied to date possess several dozens of relatively symmetrically arranged vibrissae from the rostrum, along the upper and/or lower jaws, and sometimes around the blowhole, with counts reaching up to 250 in bowhead whales ( Balaena mysticetus ) and displaying variations in arrangement and distribution [ 177 , 179 , 195 , 199 , 200 , 201 , 202 ].…”

Section: Somatosensory System (Somatosensation)mentioning

confidence: 99%

Neuroanatomy of the Cetacean Sensory Systems

De Vreese,

Orekhova,

Morell

et al. 2023

Animals

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Cetaceans have undergone profound sensory adaptations in response to their aquatic environment during evolution. These adaptations are characterised by anatomo-functional changes in the classically defined sensory systems, shaping their neuroanatomy accordingly. This review offers a concise and up-to-date overview of our current understanding of the neuroanatomy associated with cetacean sensory systems. It encompasses a wide spectrum, ranging from the peripheral sensory cells responsible for detecting environmental cues, to the intricate structures within the central nervous system that process and interpret sensory information. Despite considerable progress in this field, numerous knowledge gaps persist, impeding a comprehensive and integrated understanding of their sensory adaptations, and through them, of their sensory perspective. By synthesising recent advances in neuroanatomical research, this review aims to shed light on the intricate sensory alterations that differentiate cetaceans from other mammals and allow them to thrive in the marine environment. Furthermore, it highlights pertinent knowledge gaps and invites future investigations to deepen our understanding of the complex processes in cetacean sensory ecology and anatomy, physiology and pathology in the scope of conservation biology.

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Marine mammal sensory systems: Special issue overview

Reidenberg

Hanke

2022

The Anatomical Record

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Marine mammals are a unique group of organisms that are secondarily adapted to the aquatic environment. Their specific lifestyle requires numerous adaptations of anatomy and physiology in general, and sensory physiology in particular. During the course of evolution, marine mammal senses changed to fit with the specific requirements of underwater sensing, while at the same time retaining aerial sensing to various degrees. In this special issue, state of the art science in the field of marine mammal sensory research is reported for representatives of all marine mammal groups, unfortunately with the exclusion of the polar bear. The articles focus on somatosensation of the glabrous skin of cetaceans and mechanoreception, including haptics, hydrodynamics, and acoustics, to chemoreception. Articles even deal with electroreception, highlighting that the bottlenose dolphin can perceive weak electric stimuli, and vision, indicating that harbor seals are able to derive temporal information from an optical stimulus. Altogether this special issue illustrates the diversity of research in the field regarding sensory systems, species, or experimental approaches. The strength of this special issue lies in the combination of carefully conducted anatomical studies paired with observations and behavioral studies attempting to relate "form" and "function" as well as in the many impulses and future avenues mentioned by numerous contributions.

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In‐situ observations of the sensory hairs of Antarctic minke whales (Balaenoptera bonaerensis)

Cited by 5 publications

References 11 publications

Capture and Release of Minke Whales Offers New Research Opportunities Including Measurements of Mysticete Hearing

Capture and Release of Minke Whales Offers New Research Opportunities Including Measurements of Mysticete Hearing

Neuroanatomy of the Cetacean Sensory Systems

Marine mammal sensory systems: Special issue overview

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