Results 101 to 110 of about 33,489 (313)

Otolith Deprivation Induces Optokinetic Compensation

open access: yesJournal of Neurophysiology, 2005
According to the multisensory integration theory vestibular, optokinetic and proprioceptive inputs act in concert to maintain a stable retinal image of the visual world. Yet, it remains elusive to what extent the otolith organs contribute to this process and whether a specific loss of otolith input is compensated for.
Andreescu, Corina E   +3 more
openaire   +4 more sources

Evidence of a marine larval stage in coastrange sculpin Cottus aleuticus from a small coastal stream in California, USA, based on otolith strontium isotopes

open access: yesJournal of Fish Biology, EarlyView.
Abstract Cottus aleuticus (coastrange sculpin) is one of two North American facultatively amphidromous sculpins, but habitat use during its planktonic larval stage is poorly documented. We analysed strontium isotopes (88Sr and 87Sr/86Sr) in otoliths of 10 adult C. aleuticus from a small coastal California stream.
David E. Rundio   +2 more
wiley   +1 more source

An allometric smoothing function to describe the relation between otolith and somatic growth over the lifespan of walleye pollock (Theragra chalcogramma) [PDF]

open access: yes, 2007
We propose a new equation to describe the relation between otolith length (OL) and somatic length (fork length [FL]) of fish for the entire lifespan of the fish.
Ikeda, Hisatoshi   +4 more
core   +1 more source

Murray-Darling basin freshwater shells: riverine reservoir effect [PDF]

open access: yes, 2009
We report carbon isotope measurements on pre-bomb museum samples of freshwater mussel shells collected alive from riverine locations in New South Wales, Australia. The calculated reservoir ages, ranging from -60 to +112 years, are much smaller than those
Fink, David   +3 more
core   +5 more sources

DNA‐based identification of anadromous fishes (Alosa spp., Family Clupeidae) in stomach contents of marine groundfish

open access: yesJournal of Fish Biology, EarlyView.
Abstract Using DNA techniques for prey identification is an emerging approach for enhancing the precision and accuracy of trophic information. We evaluated the effectiveness of DNA‐based prey identification in conjunction with visual stomach content analysis of commercially important groundfish in the nearshore Gulf of Maine, with a focus on ...
Landon P. Falke   +3 more
wiley   +1 more source

Peeling the Otolith of Fish: Optimal Parameterization for Micro-CT Scanning

open access: yesFrontiers in Marine Science, 2019
In this paper, we aim to provide optimal parameters for micro-computed tomography scans of fish otoliths. We tested fifteen different combinations to sagittae. The images were scaled to Hounsfield units, and segmented in two distinct volumes-of-interest (
Jonas E. Vasconcelos-Filho   +12 more
doaj   +1 more source

Demographic characteristics of exploited tropical lutjanids: a comparative analysis [PDF]

open access: yes, 2010
Demographic parameters from seven exploited coral reef lutjanid species were compared as a case study of the implications of intrafamily variation in life histories for multispecies harvest management.
Davies, Campbell R.   +7 more
core   +2 more sources

Contrasting population genomic structuring of northern pike (Esox lucius L.) in fresh‐ and brackish water environments: Implications for management and conservation

open access: yesJournal of Fish Biology, EarlyView.
Abstract Understanding the factors that shape population genetic structure is crucial for advancing evolutionary studies and developing effective management and conservation strategies. The northern pike (Esox lucius L.) is a top teleost predator that inhabits fresh and brackish water environments in the northern hemisphere.
Alfonso Diaz‐Suarez   +3 more
wiley   +1 more source

Improving spine‐based age estimation in centrarchid fishes using otolith‐derived training sets

open access: yesJournal of Fish Biology, EarlyView.
Abstract Nonlethal age determination is a priority in fish biology contexts where sacrifice is restricted, but estimates derived from nonlethally attainable structures tend to suffer from poor precision and accuracy relative to necessarily lethal, otolith‐derived estimates.
Matthew P. Woo   +4 more
wiley   +1 more source

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