Hydrodynamic regime determines the feeding success of larval fish through the modulation of strike kinematics. Holzman, R., China, V., Levy, L., Liberzon, A., & Elmaliach, T.
Hydrodynamic regime determines the feeding success of larval fish through the modulation of strike kinematics [pdf]Paper  Hydrodynamic regime determines the feeding success of larval fish through the modulation of strike kinematics [link]Website  abstract   bibtex   
AL, 0000-0002-6882-4191; RH, 0000-0002-2334-2551 Larval fishes experience extreme mortality rates, with 99% of a cohort perishing within days after starting to actively feed. While recent evidence suggests that hydrodynamic factors contribute to constraining larval feeding during early ontogeny, feeding is a complex process that involves numerous interacting behavioural and biomechanical components. How these com-ponents change throughout ontogeny and how they contribute to feeding remain unclear. Using 339 observations of larval feeding attempts, we quantified the effects of morphological and behavioural traits on feeding success of Sparus aurata larvae during early ontogeny. Feeding success was determined using high-speed videography, under both natural and increased water viscosity treatments. Successful strikes were characterized by Reynolds numbers that were an order of magnitude higher than those of failed strikes. The pattern of increasing strike success with increasing age was driven by the ontogeny of traits that facilitate the transition to higher Reynolds numbers. Hence, the physical growth of a larva plays an important role in its transition to a hydrodynamic regime of higher Reynolds numbers, in which suction feeding is more effective.
@article{
 title = {Hydrodynamic regime determines the feeding success of larval fish through the modulation of strike kinematics},
 type = {article},
 keywords = {Morphology and biomechanics Subject Areas,Reynolds number,Subject Category,biomechanics,ecology Keywords,kinematics,stable ocean,suction feeding},
 websites = {http://dx.doi.org/10.1098/rspb.2017.0235},
 id = {adbf3e18-f299-3ff4-80b8-ba24ba49e23f},
 created = {2018-05-10T20:49:44.522Z},
 file_attached = {true},
 profile_id = {fb329fcb-394b-3686-a7d8-4373fd71ca2d},
 last_modified = {2018-05-10T21:00:26.766Z},
 read = {false},
 starred = {false},
 authored = {true},
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 abstract = {AL, 0000-0002-6882-4191; RH, 0000-0002-2334-2551 Larval fishes experience extreme mortality rates, with 99% of a cohort perishing within days after starting to actively feed. While recent evidence suggests that hydrodynamic factors contribute to constraining larval feeding during early ontogeny, feeding is a complex process that involves numerous interacting behavioural and biomechanical components. How these com-ponents change throughout ontogeny and how they contribute to feeding remain unclear. Using 339 observations of larval feeding attempts, we quantified the effects of morphological and behavioural traits on feeding success of Sparus aurata larvae during early ontogeny. Feeding success was determined using high-speed videography, under both natural and increased water viscosity treatments. Successful strikes were characterized by Reynolds numbers that were an order of magnitude higher than those of failed strikes. The pattern of increasing strike success with increasing age was driven by the ontogeny of traits that facilitate the transition to higher Reynolds numbers. Hence, the physical growth of a larva plays an important role in its transition to a hydrodynamic regime of higher Reynolds numbers, in which suction feeding is more effective.},
 bibtype = {article},
 author = {Holzman, Roi and China, Victor and Levy, Liraz and Liberzon, Alex and Elmaliach, Tal}
}
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