Green, Andrea M. and Henrietta L. Galiana. Hypothesis for cies above Ç0.5 Hz (Paige and Tomko 1991a; Paige et shared central processing of canal and otolith signals. J. Neuroal. 1996; Tokita et al. 1981). Third, the appropriate ocular physiol. 80: 2222–2228, 1998. A common goal of the translational compensation for a pure head translation depends inversely vestibuloocular reflex (TVOR) and the ...

Otoliths are small stone located in fish inner ears and characterised by an accretionnary growth. They act as a biological archive and are of much use in marine biology and ecology. In this article a computer vision framework is presented which recover the successive shapes of the otolith and the significant ridges and valleys from a 2D grayscale image. Seeing vision processes as complex system...

The nitrogen isotopes (δ15N) in the organic fraction of accretionary hard part structures, such as fish otoliths, may provide life histories dietary change. We performed controlled experiments to validate dynamics isotopic signal incorporation into biominerals following shifts and also compared whole-otolith serial sampling approaches for diet reconstruction. Laboratory-reared Atlantic croaker ...

The potential use of Sr/Ca and Ba/Ca ratios in fish otolith, as a complement to 87Sr/86Sr study movements Prochilodus lineatus, was evaluated the La Plata Basin (South America). Water were obtained from samples collected during high low water seasons at 42 sites across Basin. Elemental isotopic measured by MC-ICP-MS, ICP-MS ion chromatography, available literature. Fish caught six different wit...

In this paper age determination and morphological characteristics of blacktip catfish, Plicofollis dussumieri, from Oman Sea were evaluated. A total of 132 fish specimens were collected from fishing trawlers or landings from March 2011 to July 2012, with minimum and maximum of 245 mm, 195 g and 767 mm, 5801 g, respectively. Maximum life span was 12 years for the length range of 245 – 767 mm FL,...

Increasing the scope and accuracy of information about pinniped diets obtainable from non-invasive techniques is increasingly important, particularly in cases where pinniped species are threatened or endangered. This study is the Wrst to explore the potential for using elemental analysis of the otoliths found in scat to enhance the information available for diet analyses. We investigated the eV...

Chemical analysis of fish otoliths has become an important technique in fisheries science with widespread applications. Most research up to this point has focused predominantly on sagittal otoliths, but the underlying assumptions may also apply to lapilli. The goal of this study was to determine whether lapilli and sagittae have the same otolith chemistry and whether one can be substituted for ...

The ability to navigate in the world and execute appropriate behavioral responses depends critically on the contribution of the vestibular system to the detection of motion and spatial orientation. A complicating factor is that otolith afferents equivalently encode inertial and gravitational accelerations. Recent studies have demonstrated that the brain can resolve this sensory ambiguity by com...

The forkhead gene FH1 encodes a HNF-3beta protein required for gastrulation and development of chordate features in the ascidian tadpole larva. Although most ascidian species develop via a tadpole larva, the conventional larva has regressed into an anural (tailless) larva in some species. Molgula oculata (the tailed species) exhibits a tadpole larva with chordate features (a dorsal neural senso...

Otolith chemistry of juvenile and adult individuals of the Brazilian snapper Lutjanus alexandrei was measured to assess the utility of natural markers for investigating individual movements. Individuals were collected over a 3-year period (2010-2012) along the north-eastern coast of Brazil from both estuarine (juvenile to sub-adult stages) and coastal (sub-adult to adult stages) areas. Six elem...