Behavioral Responses to Underwater Sound in the Small Benthic Octopus Octopus ocellatus

Kaifu, Kenzo; Segawa, Susumu; Tsuchiya, Kotaro

doi:10.3135/jmasj.34.266

Cited by 18 publications

(23 citation statements)

References 23 publications

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“…The differences between the physiology and behavior results could reflect that the evoked potential methods are not as sensitive as the animal's auditory system and these behavioral metrics. Or there could be taxonomybased differences as this study used cuttlefish, while Kaifu et al (Kaifu et al, 2007;Kaifu et al, 2008) and Mooney et al (Mooney et al, 2010;Mooney et al, 2012) used octopus and squid species. Yet, Packard et al (Packard et al, 1990) used classical conditioning to address S. officinalis sound detection, and response thresholds were still two orders of magnitude higher than here.…”

Section: Discussion Acoustic Frequency Range and Sensitivitymentioning

confidence: 98%

“…More recently, conditioned responses were generated in common octopus (Octopus vulgaris), squid (Loligo vulgaris) and cuttlefish (S. officinalis) using lowfrequency acceleration stimuli (Packard et al, 1990). Juvenile S. officinalis exhibited body patterning changes and locomotor responses when exposed to water movements ranging between 0.01 and 1000 Hz (Komak et al, 2005), and octopus showed changes in respiratory rates when presented with sound stimuli between 50 and 150 Hz (Kaifu et al, 2007). Furthermore, there are suggestions that anthropogenic noise may impact cephalopod behavior or anatomy (André et al, 2011;Fewtrell and McCauley, 2012).…”

Section: Introductionmentioning

confidence: 99%

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Graded behavioral responses and habituation to sound in the common cuttlefish, Sepia officinalis

Samson

Mooney

Gussekloo

et al. 2014

Journal of Experimental Biology

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Sound is a widely available and vital cue in aquatic environments, yet most bioacoustic research has focused on marine vertebrates, leaving sound detection in invertebrates poorly understood. Cephalopods are an ecologically key taxon that likely use sound and may be impacted by increasing anthropogenic ocean noise, but little is known regarding their behavioral responses or adaptations to sound stimuli. These experiments identify the acoustic range and levels that elicit a wide range of secondary defense behaviors such as inking, jetting and rapid coloration change. Secondarily, it was found that cuttlefish habituate to certain sound stimuli. The present study examined the behavioral responses of 22 cuttlefish (Sepia officinalis) to pure-tone pips ranging from 80 to 1000 Hz with sound pressure levels of 85-188 dB re. 1 μPa rms and particle accelerations of 0-17.1 m s −2 . Cuttlefish escape responses (inking, jetting) were observed between frequencies of 80 and 300 Hz and at sound levels above 140 dB re. 1 μPa rms and 0.01 m s −2 (0.74 m s −2 for inking responses). Body patterning changes and fin movements were observed at all frequencies and sound levels. Response intensity was dependent upon stimulus amplitude and frequency, suggesting that cuttlefish also possess loudness perception with a maximum sensitivity around 150 Hz. Cuttlefish habituated to repeated 200 Hz tone pips, at two sound intensities. Total response inhibition was not reached, however, and a basal response remained present in most animals. The graded responses provide a loudness sensitivity curve and suggest an ecological function for sound use in cephalopods.

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Section: Discussion Acoustic Frequency Range and Sensitivitymentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

Graded behavioral responses and habituation to sound in the common cuttlefish, Sepia officinalis

Samson

Mooney

Gussekloo

et al. 2014

Journal of Experimental Biology

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“…We performed surgical procedures on the statocysts of Octopus ocellatus , which served as our animal model. Previous studies of cephalopods 14,15 have shown that respiratory activity is an indicator of sound reception and is indicated by muscle movements in the cephalopod mantle. Thus, to evaluate sound reception, we measured the mantle muscle movements of O. ocellatus using an electromyograph (EMG) 15 .…”

Section: Introductionmentioning

confidence: 99%

“…Previous studies of cephalopods 14,15 have shown that respiratory activity is an indicator of sound reception and is indicated by muscle movements in the cephalopod mantle. Thus, to evaluate sound reception, we measured the mantle muscle movements of O. ocellatus using an electromyograph (EMG) 15 . After first determining the perception threshold, we examined the effect of surgically removing the statolith on the sound perception of O. ocellatus .…”

Section: Introductionmentioning

confidence: 99%

Underwater sound detection by cephalopod statocyst

2008

Self Cite

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The cephalopod receptor of particle motion was identified. In a previous study, it was suggested that statocysts served this function, but there was no direct supporting evidence, and epidermal hair cells had not been conclusively ruled out. Experiments on Octopus ocellatus were conducted using respiratory activity as an indicator of sound perception. Intact animals clearly responded to 141-Hz particle motion at particle accelerations below 1.3 ¥ 10 -3 m/s 2 , and the mean perception threshold at this frequency was approximately 6.0 ¥ 10 -4 m/s 2 . Specimens in which the statoliths had been surgically removed did not show any response for accelerations up to 3.9 ¥ 10 -3 m/s 2 at 141 Hz, which was approximately 16 dB greater than the mean perception threshold at this frequency. Specimens that had undergone a control operation in which the statoliths remained intact showed positive responses at 2.8 ¥ 10 -3 m/s 2 for the same frequency stimulus. This indicates that the statocyst, which is morphologically similar to the inner ear system in fish, is responsible for the observed responses to particle motion in O. ocellatus. This is the first direct evidence that cephalopods detect kinetic sound components using statocysts.

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“…Respiration and oxygen con-sumption rates have been used as measures of direct physiological response in fish (Radford et al 2016), cephalopods (Kaifu et al 2007), and lobsters (Filiciotto et al 2014). As an example, European seabass exposed to playbacks of recordings of pile-driving and seismic surveys exhibited increased ventilation rates in relation to control individuals exposed to ambient-noise playback (Radford et al 2016).…”

Section: Sub-lethal Effectsmentioning

confidence: 99%

Mitigation provisions to be implemented for marine seismic surveying in Latin America: a review based on fish and cetaceans

Acosta¹,

Niño-Rodríguez²,

Yepes³

et al. 2017

Aquat. Biol.

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Population growth and economic development in Latin America has led to an increase in seismic surveying to find new marine hydrocarbon reserves. However, most countries along the Pacific, Atlantic, and Caribbean lack the standards to minimize the impact of seismic exploration on marine organisms. We searched primary and secondary literature in major databases and consulted international authorities and oil companies to provide scientific evidence of the effects of seismic surveying on fish and cetaceans in order to propose minimum guidelines to reduce disturbance to marine organisms in Latin America. The results suggest that seismic surveys can disrupt basic life-cycle activities such as movement, communication, and feeding. Typical outcomes include sub-lethal effects such as escape behavior, habituation, temporary loss of hearing, and changes in vocalization behavior. In order to mitigate these impacts, we propose that oil companies must provide authorities with an environmental impact assessment that includes survey data, array specifications, and acoustic array properties before a hydrocarbon exploration license can be granted. Standard mitigation measures such as exclusion zones, marine mammal observers, and passive acoustic monitoring must be implemented to prevent potential adverse effects. Appropriate legislation and regulations must be designed and implemented, and environmental authorities should be privy to all activities by seismic vessels. Besides relevant regulations and continued monitoring, further investigation must be conducted to evaluate the impact of these activities on marine organisms. The adoption of these proposed minimum guidelines is highly recommended to minimize seismic surveying impact on fish and cetaceans in Latin American countries.

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Behavioral Responses to Underwater Sound in the Small Benthic Octopus Octopus ocellatus

Cited by 18 publications

References 23 publications

Graded behavioral responses and habituation to sound in the common cuttlefish, Sepia officinalis

Graded behavioral responses and habituation to sound in the common cuttlefish, Sepia officinalis

Underwater sound detection by cephalopod statocyst

Mitigation provisions to be implemented for marine seismic surveying in Latin America: a review based on fish and cetaceans

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