Results 41 to 50 of about 629 (159)

Cartilaginous fish diversity in the Western Visayas, Philippines, including two putative unidentified species and the first record of Carcharhinus plumbeus (Elasmobranchii: Carcharhiniformes: Carcharhinidae) [PDF]

open access: yesActa Ichthyologica et Piscatoria
This 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

Batoid fishes (Elasmobranchii: Rhinidae, Rhynchobatidae, Rhinobatidae, Glaucostegidae and Dasyatidae) from the southeastern Arabian Sea [PDF]

open access: yes, 2022
Batoid fishes representing families Rhinidae, Rhinobatidae, Glaucostegidae (Order: Rhinopristiformes) and Dasyatidae (Myliobatiformes), with limited information available from southeastern Arabian Sea off Karnataka coast are described. The distribution
Nataraja, G D   +7 more
core   +1 more source

Biodiversité des parasites de Rhinobatos rhinobatos (Linnaeus, 1758) (Elasmobranchii : Rhinobatidae) de la côte algérienne. 3eme Workshop sur la Biodiversité et la gestion des écosystèmes exploités- Algérie, 27 octobre 2018.

open access: yes, 2022
Biodiversité des parasites de Rhinobatos rhinobatos (Linnaeus, 1758) (Elasmobranchii : Rhinobatidae) de la côte algérienne.3eme Workshop sur la Biodiversité et la gestion des écosystèmes exploités- Algérie, 27 octobre 2018.
Imane DEROUICHE (12996114)   +1 more
core   +1 more source

Complete mitochondrial genome and the phylogenetic position of the White-spotted guitarfish <i>Rhynchobatus australiae</i> (Rajiformes, Rhinobatidae). [PDF]

open access: yesMitochondrial DNA B Resour, 2016
We first determined the complete mitochondrial genome of the White-spotted guitarfish Rhynchobatus australiae (Rajiformes, Rhinobatidae). The complete mitogenome was 16,804 bp, with a base composition of 32.3% A, 27.5% T, 26.9% C and 13.3% G, containing 13 protein-coding genes, two rRNAs, 22 tRNAs and a control region (D-loop).
Si R, Ding W, Chen H, Chen X, Ai W.
europepmc   +4 more sources

Complete mitochondrial genome and the phylogenetic position of the Bowmouth guitarfish <i>Rhina ancylostoma</i> (Rajiformes, Rhinobatidae). [PDF]

open access: yesMitochondrial DNA B Resour, 2016
In this study, the complete mitochondrial genome of the Bowmouth guitarfish Rhina ancylostoma (Rajiformes, Rhinobatidae) was first determined. The total length of this circle DNA was 17 217 bp, consisted of 37 genes with a typical gene order in vertebrate mitogenome. It had 42 bp short intergenic spaces and 40 bp overlaps. The nucleotide composition in
Si R, Chen H, Ai W, Chen X, Chen S.
europepmc   +4 more sources

Some information on reproduction and embryonic development of the lesser guitarfish Zapteryx brevirostris in Southern Brazil [PDF]

open access: yesActa Adriatica, 2007
Individuals of Zapteryx brevirostris were caught from August 2003 to September 2004 using bottom trawl nets in a bay located in Southern Brazil. Total length ranged from 42.8 to 47.3 cm in males and 44.1 to 52.2 cm in females.
Vinícius ABILHOA   +2 more
doaj  

Sharks, Rays, and MPAs: A Global Assessment of Marine Protected Area Coverage in National Waters Across Species Ranges

open access: yesConservation Letters, Volume 19, Issue 4, July/August 2026.
ABSTRACT Global conservation agreements emphasize protected area coverage targets, such as the Kunming–Montreal Global Biodiversity Framework's 30 × 30 target, yet their effectiveness in safeguarding biodiversity remains uncertain. We measure the intersection between marine protected area (MPA) coverage and the distribution of sharks and rays.
Amanda E. Arnold   +2 more
wiley   +1 more source

Rhinobatidae Bonaparte 1835

open access: yes, 2016
Family Rhinobatidae Bonaparte, 1835 Type genus. Rhinobatos Linck, 1790 (inferred from stem). Description. Small to large rays guitarfishes (adults attaining 1.7 m TL) with a flattened, wedge- or shovel-shaped disc with a strongly depressed trunk. Snout often elongated and its tip narrowly pointed to broadly rounded.
Last, Peter R.   +2 more
openaire   +2 more sources

Grupos tróficos de peixes demersais da plataforma continental interna de Ubatuba, Brasil: I. Chondrichthyes Throphic groups of demersal fish community from the continental shelf: Ubatuba, Brazil. I. Chrondrichthyes

open access: yesBrazilian Journal of Oceanography, 1992
Com o objetivo de detectar grupos tróficos, foram analisadas amostras de conteúdos estomacais de sete espécies de peixes cartilaginosos. Os exemplares foram coletados no período de Outubro/85 a Julho/87 na plataforma interna de Ubatuba, SP, Brasil (da ...
Lucy Satiko Hashimoto Soares   +4 more
doaj   +1 more source

Beyond Hard Parts: Metabarcoding Advances Dietary Resolution in Threatened Amazonian Elasmobranchs

open access: yesAquatic Conservation: Marine and Freshwater Ecosystems, Volume 36, Issue 5, May 2026.
ABSTRACT Elasmobranchs are highly vulnerable and are considered one of the most threatened vertebrates worldwide. Insights into diet can improve conservation measures. The bias of traditional morphological methods towards taxa with distinctive hard parts makes metabarcoding analysis a complementary tool to assess diet composition. Here, we analysed the
Alan Érik S. Rodrigues   +11 more
wiley   +1 more source

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