Seasonal dynamics of dental sexual dimorphism in the Atlantic stingray Dasyatis sabina
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چکیده
منابع مشابه
Seasonal dynamics of dental sexual dimorphism in the Atlantic stingray Dasyatis sabina
Cartilaginous fishes continuously replace their teeth throughout their life (polyphyodonty) and often show a sexually dimorphic dentition that was previously thought to be an invariant sex character. Radial vector analysis of tooth shape in the polyphyodontic stingray Dasyatis sabina across a consecutive 24 month period shows a stable molariform morphology for females but a periodic shift in ma...
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This study quantified the electrosensitivity of a euryhaline elasmobranch, the Atlantic stingray (Dasyatis sabina) across a range of salinities. Specimens from a permanent freshwater (FW) population in the St Johns River system, FL, USA, were compared with stingrays from the tidally dynamic Indian River Lagoon in east Florida, USA. Behavioral responses of stingrays to prey-simulating electric s...
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Adult stingrays use their ampullary electroreceptors to detect prey and locate mates, but the response properties and function of their electrosensory system in the pre-adult stages are unknown. We examined the response properties of Atlantic stingray (Dasyatis sabina) electrosensory primary afferent neurons through ontogeny to determine whether encoding of electrosensory information changes wi...
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ژورنال
عنوان ژورنال: Journal of Experimental Biology
سال: 1996
ISSN: 1477-9145,0022-0949
DOI: 10.1242/jeb.199.10.2297