Reappraisal of the extinct barbelthroat shark †Bavariscyllium and the nebulous origin of carcharhiniform galeomorphs [PDF]
Communications BiologyWe present a revised diagnosis of the extinct galeomorph shark †Bavariscyllium based on dental and skeletal material from the Upper Jurassic of Germany and test its purported carcharhiniform affinity through morphometric and phylogenetic analyses ...
Sebastian Stumpf +10 more
doaj +2 more sources
Ion Torrent data for the genome assembly and phylogenomic placement of mitochondrial genomes with a focus on houndsharks (Chondrichthyes: Triakidae) [PDF]
Data in BriefHere, we present, for the first time, the Ion TorrentⓇ next-generation sequencing (NGS) data for five houndsharks (Chondrichthyes: Triakidae), which include Galeorhinus galeus (number of bases pairs (bp) 17,487; GenBank accession number ON652874 ...
Jessica C. Winn +2 more
doaj +2 more sources
Combining palaeontological and neontological data shows a delayed diversification burst of carcharhiniform sharks likely mediated by environmental change [PDF]
Scientific Reports, 2022 Estimating deep-time species-level diversification processes remains challenging. Both the fossil record and molecular phylogenies allow the estimation of speciation and extinction rates, but each type of data may still provide an incomplete picture of ...
Baptiste Brée +2 more
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Phylogeny explains capture mortality of sharks and rays in pelagic longline fisheries: a global meta-analytic synthesis [PDF]
Scientific Reports, 2022 Apex and mesopredators such as elasmobranchs are important for maintaining ocean health and are the focus of conservation efforts to mitigate exposure to fishing and other anthropogenic hazards.
Eric Gilman +6 more
doaj +2 more sources
SHARKS OF THE ORDER CARCHARHINIFORMES FROM THE BRITISH CONIACIAN, SANTONIAN AND CAMPANIAN (UPPER CRETACEOUS) [PDF]
Palaeontology, 2008 Bulk sampling of phosphate-rich horizons within the British Coniacian to Campanian (Upper Cretaceous) yielded very large samples of shark and ray teeth.
Charlie J Underwood, David J Ward
exaly +2 more sources
Parturition time for the Blacktip shark, Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae), in Southwestern Atlantic [PDF]
Neotropical 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
exaly +3 more sources
Characterization of the complete mitochondrial genome of blacktip shark Carcharhinus limbatus (Carcharhiniformes: Carcharhinidae) [PDF]
Mitochondrial DNA. Part B. Resources, 2022 In this study, we aimed to determine the complete mitochondrial genome of blacktip shark Carcharhinus limbatus. The mitochondrial genome was 16,705 bp in length, including 13 protein-coding genes, 22 tRNA genes, 2 rRNA genes, and a control region ...
Xiaolin Huang +4 more
doaj +2 more sources
Extensive MHC class IIβ diversity across multiple loci in the small-spotted catshark (Scyliorhinus canicula) [PDF]
Scientific Reports, 2023 The major histocompatibility complex (MHC) is a multigene family responsible for pathogen detection, and initiation of adaptive immune responses. Duplication, natural selection, recombination, and their resulting high functional genetic diversity spread ...
Arnaud Gaigher +6 more
doaj +2 more sources
Annotated Bioinformatic Pipelines for Phylogenomic Placement of Mitochondrial Genomes [PDF]
Bio-ProtocolThe limited standards for the rigorous and objective use of mitochondrial genomes (mitogenomes) can lead to uncertainties regarding the phylogenetic relationships of taxa under varying evolutionary constraints.
Jessica Winn +2 more
doaj +2 more sources
Brazilian 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
exaly +3 more sources