... uptake meets metabolic demand in the California horn shark, Heterodontus francisci . Aerobic scope Aquatic respirometry Elasmobranch Gill oxygen limitation Gill surface area Metabolic rate Natural Science and Engineering Research Council of Canada http://dx.doi.org/10.13039...

...J. Lisa Hoogenboom; W. Gary Anderson ABSTRACT Marine elasmobranchs are ureosmotic, retaining large concentrations of urea to balance their internal osmotic pressure with that of the external marine environment. The synthesis of urea requires the intake of exogenous nitrogen to maintain whole-body...

... of small triangular apertures under bright light. Environmental light field ELF Batoid Elasmobranch Vision Marine Biological Laboratory http://dx.doi.org/10.13039/100006049 National Science Foundation http://dx.doi.org/10.13039/100000001 Human Frontier Science...

...: A genetic and behavioural study of colour vision in freshwater stingrays demonstrates visual discrimination between four different colours (compared with grey) and differing hues of red. Elasmobranch Stingray Behaviour Cognition Colour vision Colour discrimination Opsins Fig. 1...

... to detect relevant external sensory signals. In the cerebellum-like electrosensory nucleus of elasmobranch fish, an adaptive filter preserves novel signals by generating cancellation signals that suppress predictable reafference. A parallel fiber network supplies the principal Purkinje-like neurons (called...

.... Ecol. 477 , 40 - 46 . 10.1016/j.jembe.2015.12.009 Whitney , N. M. , Lear , O. , Gleiss , A. C. , Payne , N. and White , C. F. ( 2018 ). Advances in the application of high–resolution biologgers to elasmobranch fishes . In Shark Research: Emerging Technologies...

...Mathias Schakmann; Victoria Becker; Mathias Søgaard; Jacob L. Johansen; John F. Steffensen; Paolo Domenici ABSTRACT Fast escape responses to a predator threat are fundamental to the survival of mobile marine organisms. However, elasmobranchs are often underrepresented in such studies. Here, we...

... contributes to ongoing efforts to understand, from an evolutionary perspective, the functional diversity of the vertebrate cerebellum in animal behavior. Cerebellum-like Mechanosensory lateral line Predictive cancellation Reafference Elasmobranch Sensory system Sensory systems face...

... centra length and diameter (mid-transverse plane across lateral aspects of each centrum) with digital calipers to the nearest 0.01 mm and cross-sectional area was calculated to the nearest 0.01 mm 2 . We then placed centra in elasmobranch Ringer's solution for 2 h prior to mechanical testing. We used...

... skate, Leucoraja erinacea (Mitchill 1825), during steady swimming. The little skate is known to have the lowest swimming metabolic rate measured in any elasmobranch at its optimal cruising speed (∼1 BL s −1 , where BL is body lengths) ( Di Santo and Kenaley, 2016 ), with an energetic cost...

...: Calibrations between metabolic rate, body acceleration and temperature in three coastal sharks offer a tool to estimate field metabolic rates in these species. Respirometry Acceleration data logger Elasmobranch Field metabolic rate Bioenergetics The life history and ecology of animals...

...Chris M. Wood; Marina Giacomin ABSTRACT Nitrogen (N) appears to be a limiting dietary resource for elasmobranchs, required not only for protein growth but also for urea-based osmoregulation. Building on recent evidence that the toxicant ammonia can be taken up actively at the gills of the shark...

... impacts on resident elasmobranchs are largely unknown. Gummy sharks ( Mustelus antarcticus ) and school sharks ( Galeorhinus galeus ) use the same Tasmanian estuary as a nursery ground; however, each species has distinct distribution patterns that are coincident with changes in local environmental...

... measured for any elasmobranch; however, this species incurs a much higher COT at approximately five times the lowest values recorded for some teleosts. In addition, because skates lack a propulsive caudal fin and could not sustain steady swimming beyond a relatively low optimum speed of 1.25 body lengths s...

...), unlike bony fishes. This Commentary discusses hypotheses implicating the unusual physiology of chondrichthyans as an explanation for their scarcity at great depths. Elasmobranch Shark Skate Ray Chimaera Biogeography Geographic range limit Metabolism Osmoregulation Buoyancy Energetics...

.... and I.K.B. are responsible for its execution, interpretation, drafting and revision. COMPETING INTERESTS No competing interests declared. 23 1 2013 12 8 2013 © 2013. Published by The Company of Biologists Ltd 2013 elasmobranch spinal deformity vertebrae skeletal...

.... ( 2007 ). Body fluid volume regulation in elasmobranch fish . Comp. Biochem. Physiol.   148A , 3 - 13 . Anderson   W. G. , Dasiewicz   P. J. , Liban   S. , Ryan   C. , Taylor   J. R. , Grosell   M. , Weihrauch   D. ( 2010 ). Gastro-intestinal handling of water and solutes...

... in cuvature along the length of a fin element, whether the cartilaginous fin radial of an elasmobranch or the bony lepidotrichia of an actinopterygian fish, can result from direct muscle action or inherent structural features. In actinopterygians, the jointed, bilaminar structure of lepidotrichia translates...

...Laura J. Macesic; Adam P. Summers SUMMARY Elasmobranchs (sharks, skates and rays) perform at the extremes of locomotion and feeding (i.e. long migrations, high-speed swimming and durophagy). However, very little is known about their cartilaginous skeletal structure and composition in response...

...Beau D. Reilly; Rebecca L. Cramp; Jonathan M. Wilson; Hamish A. Campbell; Craig E. Franklin SUMMARY Bull sharks, Carcharhinus leucas , are one of only a few species of elasmobranchs that live in both marine and freshwater environments. Osmoregulation in euryhaline elasmobranchs is achieved through...