Results 21 to 30 of about 863 (191)

The biology and ecology of the Pacific sharpnose shark Rhizoprionodon longurio

open access: yesEcology and Evolution, 2023
Amidst global declines in elasmobranch populations resulting predominantly from overfishing, the need to gather data regarding shark ecology is greater than ever.
Joel H. Gayford, Darren A. Whitehead
doaj   +1 more source

Faune française de l’Atlantique. Requins .2. Carcharhiniformes (Craniata : Elasmobranchii)

open access: green, 2013
Un état de la faune marine des eaux françaises est poursuivi avec les requins de l’ordre des carcharhiniformes (15 espèces). Le requin hâ Galeorhinus galeus, autrefois commun dans le golfe de Gascogne est en voie de disparition. L’extension vers le nord de l’aire de répartition de l’émissole lisse Mustelus mustelus, l’accroissement des signalements de ...
Jean-Claude Quéro   +2 more
openalex   +2 more sources

Sawfishes and Other Elasmobranch Assemblages from the Mio-Pliocene of the South Caribbean (Urumaco Sequence, Northwestern Venezuela). [PDF]

open access: yesPLoS ONE, 2015
The Urumaco stratigraphic sequence, western Venezuela, preserves a variety of paleoenvironments that include terrestrial, riverine, lacustrine and marine facies.
Jorge D Carrillo-Briceño   +4 more
doaj   +1 more source

Morphology of the anterior vertebral region in elasmobranchs: special focus, Squatiniformes [PDF]

open access: yesFossil Record, 2011
The morphology of extant and extinct Squatiniformes is well conserved within this lineage, but differences are of consequence to character interpretations for phylogenetic analyses.
K. M. Claeson, A. Hilger
doaj   +5 more sources

New host and ocean records for Driocephalus cerebrinoxius (Sphyriidae, Siphonostomatoida) and a reconsideration of phylogeny within Sphyriidae. [PDF]

open access: yesActa Ichthyologica et Piscatoria, 2006
Background. Driocephalus cerebrinoxius is an unusual representative of an unusual family of parasitic copepods (Sphyriidae, Siphonostomatoida, Copepoda). This report documents new host and ocean records for D. cerebrinoxius and considers the phylogenetic
G.W. Benz   +4 more
doaj   +3 more sources

Parturition time for the Blacktip shark, Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae), in Southwestern Atlantic [PDF]

open access: yesNeotropical Ichthyology, 2020
The determination of the period of parturition and identification of nursery areas are fundamental for the management and conservation of a fishing resource.
Jones Santander-Neto   +2 more
doaj   +1 more source

Os carcharhiniformes (cCondrichthyes, Neoselachii) da Bacia de Alvalade (Portugal)

open access: yesSpanish Journal of Palaeontology, 2021
The uppermost Miocene, Esbarrondadoiro Formation (Alvalade basin, Portugal) yielded more than 10 thousandSelachian teeth at Santa Margarida, Esbarrondadoiro and Vale de Zebro outcrops. Forty-five taxa were identifiedbelonging to the orders Hexanchiformes, Squaliformes, Lamniformes, Carcharhiniformes, Torpediniformes and Myliobatiformes.
Miguel Telles Antunes   +1 more
openaire   +2 more sources

New species and new records of camallanid nematodes (Nematoda, Camallanidae) from marine fishes and sea snakes in New Caledonia

open access: yesParasite, 2019
Recent examinations of camallanid nematodes (Camallanidae) from marine fishes off New Caledonia, collected in the years 2003–2011, revealed the presence of the following five new species of Procamallanus Baylis, 1923, all belonging to the subgenus ...
Moravec František, Justine Jean-Lou
doaj   +1 more source

First record of albinism in the smooth dogfish Mustelus Schimitti Springer, 1939 (Carcharhiniformes - Triakidae) from Southern Brazil

open access: yesBrazilian Archives of Biology and Technology, 2002
This paper reports on a subadult male specimen of the smooth dogfish, Mustelus schimitti, caught in the continental shelf of Rio Grande Sul, during winter of 1993, which exhibited the characteristics of total albinism.Este trabalho registra a primeira ...
Simone Ferreira Teixeira   +1 more
doaj   +1 more source

Characterization of the complete mitochondrial genome of the common smoothhound shark, Mustelus mustelus (Carcharhiniformes: Triakidae)

open access: yesMitochondrial DNA. Part B. Resources, 2018
We present the complete mitochondrial genome of the common smoothhound , Mustelus mustelus,which is 16,755 bp long, contains 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and non-coding control region.
Kelvin L. Hull   +2 more
doaj   +1 more source

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