The Phenomenon of Piebaldism in Sharks: A Review of Global Sightings and Patterns [PDF]
Ecology and EvolutionChromatic disorders in elasmobranchs (sharks and rays) have been reported in several species, but little is known about their true abundance or consequences for survival and fitness.
Darren A. Whitehead +9 more
doaj +3 more sources
Comparative morphology and systematics of the cookiecutter sharks, genus Isistius Gill (1864) (Chondrichthyes: Squaliformes: Dalatiidae). [PDF]
PLoS ONE, 2018 The dalatiid genus Isistius Gill (1864) has three valid species currently recognized in the literature: Isistius brasiliensis Quoy & Gaimard (1824), I. plutodus Garrick & Springer (1964), and I. labialis Meng, Zhu & Li (1985). The most common species, I.
Flávia de Figueiredo Petean +1 more
doaj +6 more sources
Placoid scales in bioluminescent sharks: Scaling their evolution using morphology and elemental composition [PDF]
Frontiers in Marine Science, 2022 Elasmobranchs are characterised by the presence of placoid scales on their skin. These scales, structurally homologous to gnathostome teeth, are thought to have various ecological functions related to drag reduction, predator defense or abrasion ...
Alexia Lourtie +7 more
doaj +3 more sources
Photophore Distribution and Enzymatic Diversity Within the Photogenic Integument of the Cookie-Cutter Shark Isistius brasiliensis (Chondrichthyes: Dalatiidae) [PDF]
Frontiers in Marine Science, 2021 The cookie-cutter shark Isistius brasiliensis (Squaliformes: Dalatiidae) is a deep-sea species that emits a blue luminescence ventrally, except at the level of a black band located beneath the jaw.
Jérôme Delroisse +3 more
doaj +3 more sources
First description of shark Isistius brasiliensis (Dalatiidae) in the waters of Russia
Известия ТИНРО, 2015 Description of rare shark Isistius brasiliensis caught off southern Kuril Islands on July 18, 1978. Morphometric parameters are presented, including counts of dorsal and caudal vertebras, teeth rows, mitral valves, and intestinal helical valve coils.
Vladimir N. Dolganov
doaj +4 more sources
Evolutionary Conservation of Photophore Ultrastructure in Sharks: The Case of a Dalatiid Squalomorph
Fishes, 2023 Bioluminescence is a common ecological trait among many marine organisms, including three shark families: Etmopteridae, Dalatiidae, and Somniosidae. The kitefin shark, Dalatias licha (Bonnaterre, 1788), from the Dalatiidae family is the largest known ...
Laurent Duchatelet +4 more
doaj +1 more source
Diversity, 2022 Bioluminescence is a common phenomenon in marine organisms, especially in deep water where faint blue light remains. Among elasmobranchs, three families display the ability to emit light, the Etmopteridae, the Dalatiidae, and the Somniosidae.
Laurent Duchatelet +2 more
doaj +1 more source
Glow on Sharks: State of the Art on Bioluminescence Research
Oceans, 2021 This review presents a synthesis of shark bioluminescence knowledge. Up to date, bioluminescent sharks are found only in Squaliformes, and specifically in Etmopteridae, Dalatiidae and Somniosidae families.
Laurent Duchatelet +4 more
doaj +1 more source
Frontiers in Marine Science, 2021 Bioluminescence has often been seen as a spectacular yet uncommon event at sea but considering the vastness of the deep sea and the occurrence of luminous organisms in this zone, it is now more and more obvious that producing light at depth must play an ...
Jérôme Mallefet +2 more
doaj +1 more source
Frontiers in Marine Science, 2022 Mesopelagic fishes play critical ecological roles by sequestering carbon, recycling nutrients, and acting as a key trophic link between primary consumers and higher trophic levels.
Leandro Nolé Eduardo +12 more
doaj +1 more source