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Feeding Resilience of Odontocetes in the aNThropocene

Project description

Deep-diving toothed whales’ feeding behaviour for conservation efforts

Deep-diving toothed whales are vital for healthy marine ecosystems. However, increased human activities such as deep-sea fishing and mining disrupt their prey, harming their fitness and ecosystem balance. Models linking disturbances to whale fitness depend on energy budget data from undisturbed individuals, but the lack of such data limits conservation efforts. With the support of the Marie Skłodowska-Curie Actions programme, the FRONT project will, for the first time, use advanced tagging technology and motion analysis to quantify feeding behaviour and foraging effort in deep-diving toothed whales and to estimate their energy requirements and hunting costs. This research will provide baseline energy budget data for population consequences of disturbance (PCoD) models.

Objective

Deep-diving toothed whales are mega-predators that supposedly shape and maintain healthy marine ecosystems. Human activity is on the rise in these ecosystems due to deep-sea fishing and mining, which can alter the prey landscape of toothed whales and therefore negatively affect their fitness with potential trophic cascades on entire deep-water ecosystems. To address such concerns, models for Population Consequences of Disturbance (PCoD) have been developed linking disturbance to fitness of individual whales and entire populations. While the robustness of these models relies on data of energy budgets from undisturbed individuals, a shortage of related, quantitative measures precludes the effective use of these models and hence the efficient conservation of these predators. Through FRONT, I propose to fill this important knowledge gap by applying an innovative combination of state-of-the-art tagging technology and motion analysis to, for the first time in deep-diving toothed whales, (i) quantify fine-scale feeding behaviour and foraging effort, and (ii) estimate overall energy requirements and hunting costs. As a result, FRONT will generate novel data on baseline energy budgets that are crucial bioenergetic parameters for PCoD models. By informing these models, FRONT will be of direct relevance to the European Union’s (EU) Marine Strategy Framework Directive for maintaining healthy populations of these apex predators through the management of underwater anthropogenic disturbance.

Fields of science (EuroSciVoc)

Keywords

Programme(s)

Topic(s)

Funding Scheme

HORIZON-TMA-MSCA-PF-GF - HORIZON TMA MSCA Postdoctoral Fellowships - Global Fellowships

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Call for proposal

(opens in new window) HORIZON-MSCA-2023-PF-01

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Coordinator

AARHUS UNIVERSITET
Net EU contribution
€ 286 191,36
Address
NORDRE RINGGADE 1
8000 Aarhus C
Denmark
Region
Danmark Midtjylland Østjylland
Activity type
Higher or Secondary Education Establishments
Links
Total cost
No data

Partners (1)