Enhancing Whale Watching with Mobile Apps and Streaming Passive Acoustics

Nunes, Nuno; Radeta, Marko; Nisi, Valentina

doi:10.1007/978-3-030-65736-9_18

Cited by 3 publications

(2 citation statements)

References 62 publications

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“…Webber et al 's empathetic installation, aimed at elevating orangutan well-being [60], parallels our pursuit of nurturing a harmonious coexistence between vessels and NARWs. The mobile application by Nunes et al, augmenting whale-watching encounters, aligns seamlessly with our vision of incorporating networked sensors to fortify NARW monitoring [35].…”

Section: Enhancing Human-animal Communicationmentioning

confidence: 85%

Towards Harmonious Coexistence: A Bioacoustic-Driven Animal-Computer Interaction System for Preventing Ship Collisions with North Atlantic Right Whales

Erceg,

Palamas

2023

The Tenth International Conference on Animal-Computer Interaction

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The North Atlantic Right Whale (NARW) population is currently teetering on the brink of extinction, with a mere approximate count of 350 individuals remaining. These animals have been protected under the Endangered Species Act since 1970. Today, the survival of right whales is imperiled primarily due to vessel collisions, net entanglements, and habitat degradation. This paper presents a novel system of animal-computer interaction founded on the identification of bioacoustic signatures. Initially, NARWs' vocalizations were transformed into spectrograms, which were subsequently inputted into a Convolutional Neural Network (CNN). To enhance robustness against environmental noise, techniques such as time warping, frequency masking, and time masking were employed. The outcomes of our study indicate that the proposed system holds potential for establishing a closed-loop interaction framework between vessels and NARWs. This framework could enable vessels to adapt their speed or avoid routes frequented by NARWs. Furthermore, this article discusses the potential benefits of employing networked sensors, such as Internet of Things (IoT) devices, to augment NARW monitoring and data collection efforts.

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Section: Enhancing Human-animal Communicationmentioning

confidence: 85%

Towards Harmonious Coexistence: A Bioacoustic-Driven Animal-Computer Interaction System for Preventing Ship Collisions with North Atlantic Right Whales

Erceg,

Palamas

2023

The Tenth International Conference on Animal-Computer Interaction

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“…Madeira Archipelago is situated within the NE Atlantic oceanic developmental area that includes the Azores, Madeira and the Canary Islands. We used the growing local touristic whale watching activities (IFAW, 2009;Sequeira et al, 2009;Krasovskaya, 2018;Radeta et al, 2018;Nunes et al, 2020) as platforms of opportunity to monitor the pelagic loggerhead sea turtles since year 2007 for the period of 15 years. Using spectral analysis we found climatic factors that correlate with abundance variations and indicate area shifts of turtle distribution, while the correlation with nesting data hint at abundance variations.…”

Section: Introductionmentioning

confidence: 99%

Long-Term Monitoring of In-Water Abundance of Juvenile Pelagic Loggerhead Sea Turtles (Caretta caretta): Population Trends in Relation to North Atlantic Oscillation and Nesting

2022

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Sea turtles have various life-stages, typically being oceanic foragers as juveniles while shifting to more coastal habitats as they mature. The present study focuses on the least studied and well known of these, the juvenile oceanic life stage for the loggerhead sea turtle, Caretta caretta. Loggerhead sea turtles remain threatened by fisheries and their distribution and habitat change in the North Atlantic remains poorly understood. After hatching and swimming out to sea, turtles spend 7 or more years in the pelagic life stage. Madeira Island has an advantage of being situated in the middle of the North Atlantic developmental habitat for loggerheads originating both from the US, as well as, from Cape Verde and other mixed source rookeries. Understanding the demographics of this oceanic life stage has been described as a research priority. We here present a population trendline and the abundance variation of oceanic stage loggerheads, measured at a single geographic spot in Madeiran waters, over the period of 15 years. We find that the observed loggerhead distribution results from combined effects of physical and biological processes within the North Atlantic. We explore physical phenomena that influence abundance variability, and find that oscillations in climate affect the turtle migrations, as does the population recruitment from the nesting rookeries. For this, we use novel cost-effective census methods that take advantage of platforms of opportunity from the blue ecotourism industry. To study the time series and their correlations we use spectral analysis, a method not commonly used in traditional population assessments, including Wavelet and Fourier Transformations (WT and FFT), and Digital Signal Processing (DSP) techniques. A strong anti-correlation between sea turtle sightings and North Atlantic Oscillation seasonal components was found, which implies that loggerhead sea turtles are less abundant during positive NAO phases. We also detected long period trends in the sighting data which we relate to La Niña and El Niño oscillations. Source rookeries also influenced the sighting data with a time-lag of ~ 7 years, which coincides with the average time that turtles spend as oceanic juveniles.

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Posthumanist Care and Ecologies of Empathy: Investigating Design Potentials for Nature:Culture HCI

Galvão-Ferreira,

Fearns,

Nunes

et al. 2024

Proceedings of the 27th International Academic Mindtrek Conference

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Enhancing Whale Watching with Mobile Apps and Streaming Passive Acoustics

Cited by 3 publications

References 62 publications

Towards Harmonious Coexistence: A Bioacoustic-Driven Animal-Computer Interaction System for Preventing Ship Collisions with North Atlantic Right Whales

Towards Harmonious Coexistence: A Bioacoustic-Driven Animal-Computer Interaction System for Preventing Ship Collisions with North Atlantic Right Whales

Long-Term Monitoring of In-Water Abundance of Juvenile Pelagic Loggerhead Sea Turtles (Caretta caretta): Population Trends in Relation to North Atlantic Oscillation and Nesting

Posthumanist Care and Ecologies of Empathy: Investigating Design Potentials for Nature:Culture HCI

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