Results 31 to 40 of about 6,434 (165)

Strong population genetic structure and contrasting demographic histories for the small-spotted catshark (Scyliorhinus canicula) in the Mediterranean Sea [PDF]

open access: yes, 2014
Coastal and demersal chondrichthyans, such as the small-spotted catshark, are expected to exhibit genetic differentiation in areas of complex geomorphology like the Mediterranean Basin because of their limited dispersal ability.
Kasapidis, P   +3 more
core   +1 more source

Biofluorescence in Catsharks (Scyliorhinidae): Fundamental description and relevance for elasmobranch visual ecology [PDF]

open access: yes, 2016
Biofluorescence has recently been found to be widespread in marine fishes, including sharks. Catsharks, such as the Swell Shark (Cephaloscyllium ventriosum) from the eastern Pacific and the Chain Catshark (Scyliorhinus retifer) from the western Atlantic,
Akkaynak, D.   +9 more
core   +1 more source

Feeding ecology of five commercial shark species of the Celtic Sea through stable isotope and trace metal analysis [PDF]

open access: yes, 2005
In order to trace their feeding habits, stable carbon and nitrogen isotope ratios (delta(15)N and delta(13)C), as well as trace metal concentrations (Zn, Cd, Fe, Cu, Se and Hg) were analysed in the tissues of five commercial shark species from the Celtic
Adams   +64 more
core   +1 more source

The complete mitochondrial genome and phylogenetic position of the leopard catshark, Poroderma pantherinum

open access: yesMitochondrial DNA. Part B. Resources, 2018
We present the first mitochondrial genome of a South African endemic catshark, Poroderma pantherinum. The complete mitogenome is 16,686 bp in length, comprising 13 protein-coding genes, 2 rRNA genes, 22 tRNA genes, and one non-coding control region ...
Michaela van Staden   +3 more
doaj   +1 more source

Early life sensory ability—ventilatory responses of thornback ray embryos (Raja clavata) to predator-type electric fields [PDF]

open access: yes, 2015
Predator avoidance is fundamental for survival and it can be particularly challenging for prey animals if physical movement away from a predatory threat is restricted. Many sharks and rays begin life within an egg capsule that is attached to the sea bed.
Ballard   +37 more
core   +1 more source

Molecular mechanism of nutrient uptake in developing embryos of oviparous cloudy catshark (Scyliorhinus torazame).

open access: yesPLoS ONE, 2022
Forms of embryonic nutrition are highly diverse in cartilaginous fishes, which contain oviparity, yolk-sac viviparity and several types of matrotrophic viviparity (histotrophy, oophagy, and placentotrophy). The molecular mechanisms of embryonic nutrition
Yuki Honda   +6 more
doaj   +3 more sources

Novel developmental bases for the evolution of hypobranchial muscles in vertebrates

open access: yesBMC Biology, 2020
Background Vertebrates are characterized by possession of hypobranchial muscles (HBMs). Cyclostomes, or modern jawless vertebrates, possess a rudimentary and superficial HBM lateral to the pharynx, whereas the HBM in jawed vertebrates is internalized and
Rie Kusakabe   +5 more
doaj   +1 more source

Biological Sound vs. Anthropogenic Noise: Assessment of Behavioural Changes in Scyliorhinus canicula Exposed to Boats Noise

open access: yesAnimals, 2021
Despite the growing interest in human-made noise effects on marine wildlife, few studies have investigated the potential role of underwater noise on elasmobranch species.
Giovanni de Vincenzi   +9 more
doaj   +1 more source

The Immunoglobulins of Cold-Blooded Vertebrates [PDF]

open access: yes, 2014
Peer reviewedPublisher ...
Chen   +22 more
core   +2 more sources

Presence and Potential Effects of Microplastics in the Digestive Tract of Two Small Species of Shark from the Balearic Islands

open access: yesFishes
In recent years, there has been an increase in the reporting of plastic pollution in the marine environment and its effects on marine animals, especially bony fish.
Susana Torres   +4 more
doaj   +1 more source

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