Minke whale feeding rate limitations suggest constraints on the minimum body size for engulfment filtration feeding

Cade, David E.; Kahane-Rapport, Shirel R; Gough, William T.; Bierlich, K. C.; Linsky, Jacob M. J.; Calambokidis, John; Johnston, David W.; Goldbogen, Jeremy A.; Friedlaender, Ari S.

doi:10.1038/s41559-023-01993-2

Cited by 6 publications

(4 citation statements)

References 89 publications

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“…These advancements will complement other research themes by integrating previously independent data-streams from complementary measurement and monitoring techniques, pioneering new syntheses and transforming the field toward further integrated, multiscalar themes of research and management. Such integration is already taking place in the adjacent field of cetacean research, where drone measurements have been calibrated and integrated alongside biologging and biomechanical models to reveal new evolutionary and ecological insights (Cade et al, 2023;Goldbogen et al, 2019;Savoca et al, 2021). As new methods and standards emerge for the use of drones in research, scientists must advance applications toward the scales of management objectives and statistical rigor by validating potential methods, highlighting current limitations, and testing new applications beyond the current frontiers of pinniped research.…”

Section: Discussionmentioning

confidence: 99%

Growth and opportunities for drone surveillance in pinniped research

Larsen,

Johnston

2023

Preprint

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Pinniped species undergo uniquely amphibious life histories that make them valuable subjects for many domains of research. Pinniped research has often progressed hand-in-hand with technological frontiers of wildlife biology, and drones represent a leap forward for methods of aerial remote sensing, heralding data collection and integration at new scales of biological importance. Drone methods and data types provide four key opportunities for wildlife surveillance that are already advancing pinniped research and management: (1) repeat and on demand surveillance, (2) high-resolution coverage at large extents, (3) morphometric photogrammetry, and (4) computer vision and deep learning applications. Drone methods for pinniped research represent early stages of technological adoption and can reshape the field as they scale towards the full potential of their techniques.

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Section: Discussionmentioning

confidence: 99%

Growth and opportunities for drone surveillance in pinniped research

Larsen,

Johnston

2023

Preprint

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“…Because of the scaling differences between baleen area and engulfment volume, the time required to filter engulfed water increases allometrically with body size, reaching up to 80 seconds in the largest blue whales (Kahane-Rapport et al 2020). In contrast, one of the smallest lunge filter feeders, the Antarctic minke whale (Balaenoptera bonaerensis), exhibits filter times of approximately 10 seconds (Kahane-Rapport et al 2020), resulting in the highest measured lunge rates of any rorqual (Cade et al 2023, Friedlaender et al 2014). Long filtration times in larger rorquals yield relatively higher prey intake despite executing only a few lunges per foraging dive (Goldbogen et al 2019, Kahane-Rapport et al 2020.…”

Section: What Are the Energetic Constraints Of Extreme Predator-prey ...mentioning

confidence: 99%

How Whales Dive, Feast, and Fast: The Ecophysiological Drivers and Limits of Foraging in the Evolution of Cetaceans

Goldbogen,

Pyenson,

Madsen

2023

Annu. Rev. Ecol. Evol. Syst.

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Whales are an extraordinary study group for questions about ecology and evolution because their combinations of extreme body sizes and unique foraging strategies are unparalleled among animals. From a terrestrial ancestry, whales evolved specialized oceanic foraging mechanisms that characterize the two main groups of living cetaceans: echolocation by toothed whales and bulk filter feeding by baleen whales. In toothed whales, lineage-specific increases in body size, enhanced diving capacity, and echolocation enable them to hunt the most abundant prey on the planet: deep-sea fish and cephalopods. Even greater body size increases, along with filter feeding and fasting capacity, permit large baleen whales to migrate long distances and exploit epipelagic patches of schooling prey, such as krill or fish, which are highly abundant but ephemeral. For both groups, prey abundance and distribution limit foraging performance, yielding divergent energetic niches that have shaped their convergent evolution to gigantism.

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“…4 Filter feeders cover sponges, 5 sea squirts, 6 comb jellies, 7 bivalves, 8 crustaceans, 9 cetaceans, 10 and other species. 11 , 12 , 13 , 14 They are equipped with a range of filtration apparatus to adapt to different living environments. 15 Some filtration apparatus, consisting of cilia, cirrus, tentacles, or attachments with hairs, are mainly used to generate a feed stream for directional capture of suspended objects.…”

Section: Introductionmentioning

confidence: 99%