Results 21 to 30 of about 316 (140)
Molecular Taxonomy of South Africa’s Catsharks: How Far Have We Come?
Diversity, 2023 The ability to correctly identify specimens at the species level is crucial for assessing and conserving biodiversity. Despite this, species-specific data are lacking for many of South Africa’s catsharks due to a high level of morphological stasis.
Michaela van Staden +9 more
doaj +1 more source
Morphology of the unique egg cases of hornsharks (Heterodontiformes: Heterodontidae). [PDF]
J Fish BiolAbstract Many of the egg cases of oviparous chondrichthyans remain unknown and undescribed in the literature. Egg cases can be a useful taxonomic character for species distinction and can be a valuable indicator of a species distribution in the field.
O'Neill HL, Tokunaga K, White WT.
europepmc +2 more sources
المجلة العراقية للاستزراع المائي, 2022 This study was carried out in the Marine Sciences Laboratory of Agriculture Faculty at Tishreen University, in collaboration with the Higher Commission for Scientific Research, on the Small Spotted Catshark Scyliorhinus canicula (Linnaeus, 1758) in the ...
Malek Fares Ali +3 more
doaj +1 more source
Environmental DNA, Volume 5, Issue 6, Page 1589-1607, November 2023., 2023 We assessed the performance of 22 DNA metabarcoding primer sets for detecting 103 species of marine and freshwater bony fishes, elasmobranchs, cephalopods, and crustaceans. We find that a portfolio of four markers targeting 12S, 16S, and multiple regions of COI identifies all reference taxa to family and nearly 60% to species.
Diana S. Baetscher +5 more
wiley +1 more source
Threatened fish species in the Northeast Atlantic are functionally rare
Global Ecology and Biogeography, Volume 32, Issue 10, Page 1827-1845, October 2023., 2023 Abstract Aim The criteria used to define the International Union for Conservation of Nature (IUCN) Red List categories are essentially based on demographic parameters at the species level, but they do not integrate species' traits or their roles in ecosystems.
Noémie Coulon +5 more
wiley +1 more source
Biofluorescence in Catsharks (Scyliorhinidae): Fundamental Description and Relevance for Elasmobranch Visual Ecology [PDF]
Scientific Reports, 2016 AbstractBiofluorescence 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, are known to exhibit bright green fluorescence.
David F. Gruber +9 more
openaire +2 more sources
, 2018 Published as part of White, William T. & Ko'Ou, Alfred, 2018, An annotated checklist of the chondrichthyans of Papua New Guinea, pp.
White, William T., Ko'Ou, Alfred
openaire +4 more sources
First record of albinism in the swell shark, Cephaloscyllium ventriosum (Elasmobranchii: Carcharhiniformes: Scyliorhinidae) [PDF]
Acta Ichthyologica et Piscatoria, 2017 We report the first record of albinism in the swell shark, Cephaloscyllium ventriosum (Garman, 1880). The specimen was caught off the southern part of the Baja California Peninsula, Mexico. The shark had no skin pigmentation and golden-coloured eyes. The
E.E. Becerril-García +3 more
doaj +3 more sources
Cartilaginous fish diversity in the Western Visayas, Philippines, including two putative unidentified species and the first record of Carcharhinus plumbeus (Elasmobranchii: Carcharhiniformes: Carcharhinidae) [PDF]
Acta Ichthyologica et PiscatoriaThis annotated checklist documents the diversity of cartilaginous fishes, including sharks, batoids (rays and skates), and chimaeras, from Panay and Guimaras islands, Western Visayas, Philippines, through surveys at fish markets and ports.
Roxanne Cabebe-Barnuevo +5 more
doaj +3 more sources
, 2018 Family Scyliorhinidae Scyliorhinus canicula (Linnaeus, 1758) —Pata-roxa; Small-spotted catshark Lichtenstein 1844: 2 (as Squalus catalus) Fowler 1936: 38 | Albuquerque 1954 –56: 93 | Carneiro et al 2014: 11 Distribution in Macaronesia. Possibly Madeira archipelago, Azores (Santos et al.1997) and Canary Islands (Brito et al.
Biscoito, Manuel +2 more
openaire +2 more sources