Results 31 to 40 of about 3,299 (190)

Sharks of the order Carcharhiniformes from the British Coniacian, Santonian and Campanian (Upper Cretaceous). [PDF]

, 2008
Bulk sampling of phosphate-rich horizons within the British Coniacian to Campanian (Upper Cretaceous) yielded very large samples of shark and ray teeth.
AGASSIZ L. J. R., ANTUNES M. T., BLAINVILLE H. M. D. de, BONE A., BONE A., CAPPETTA H., CAPPETTA H., CAPPETTA H., CAPPETTA H., CAPPETTA H., CAPPETTA H., CASE G. R., CASE G. R., COMPAGNO L. J. V., CUMBAA S. L., DAIMERIES A., DALINKEVICIUS J. A., DAVIS J. W., DINELEY D. L., FLETCHER T. P., FOWLER H. W., GARMAN S., GILL T., GRAY J. E., GURR P. R., HALTER M. C., HAY O. P., HERMAN J., HERMAN J., HERMAN J., HERMAN J., JARVIS I., JARVIS I., JARVIS I., JORDAN D. S., LERICHE M., LINNAEUS C., MARCK W. von der, MORTIMORE R. N., MULLER A., MULLER A., MULLER J., NOUBHANI A., SHIRAI S., SIVERSON M., UNDERWOOD C. J., UNDERWOOD C. J., UNDERWOOD C. J., UNDERWOOD C. J., UNDERWOOD C. J., WAGNER J. A., WELTON B. J., WHITE H. G. O., WILLCOX N. R., WOODROOF P. B., WOODWARD A. S.   +55 more
core   +1 more source

Feeding ecology of elasmobranch species in southeastern Brazil

Neotropical Ichthyology, 2017
The feeding ecology of five elasmobranch species was studied on the southern coast of Rio de Janeiro, southwestern Atlantic Ocean. The specimens were caught with a trawl or bottom longline between January 2006 and August 2007.
Alessandra F. Viana, Jean L. Valentin, Marcelo Vianna   +2 more
doaj   +1 more source

Estado de la recién creada colección científica de mandíbulas de elasmobranquios (Chordata: Elasmobranchii) de la Facultad de Estudios Superiores Iztacala, UNAM

Revista Biológico Agropecuaria Tuxpan, 2016
Las mandíbulas son una herramienta importante para el estudio de los elasmobranquios, tanto fósiles como actuales, las cuales difieren entre especies por su tamaño, la forma y número de dientes. Dada su relevancia, en  la presente contribución  se hace  
Gerardo Urbán Minutti, Luis Fernando Del Moral Flores   +1 more
doaj   +1 more source

Trypanorhynch Assemblages Indicate Ecological and Phylogenetical Attributes of Their Elasmobranch Final Hosts [PDF]

, 2017
This study explores non-metric multidimensional scaling (nMDS) as a tool for investigating parasites as indicators of the elasmobranch biology. An attractive feature of nMDS is its ability to allow assemblage-level parasite data to be simultaneously ...
Palm, Harry W., Piatkowski, Uwe, Yulianto, Irfan   +2 more
core   +1 more source

Unusual presence of atlantic sharpnose shark (Rhizoprionodon terraenovae) neonates in a coastal lagoon in southeast Gulf of Mexico

Novitates Caribaea
This study reports for the first time the presence of Rhizoprionodon terraneovae neonates in a coastal lagoon in the southeastern Gulf of Mexico. The observations suggest the presence of neonates was due to the salinity values being similar to those of ...
Armando T. Wakida-Kusunoki, Vicente Anislado-Tolentino, Luis Fernando Del Moral-Flores   +2 more
doaj   +1 more source

Reproductive Anatomy of Chondrichthyans: Notes on Specimen Handling and Sperm Extraction. II. Sharks and Chimaeras

Animals, 2021
The chondrichthyan fishes, which comprise sharks, rays, and chimaeras, are one of the most threatened groups of vertebrates on the planet. Given this situation, an additional strategy for the protection of these species could be the ex situ conservation ...
Pablo García-Salinas, Victor Gallego, Juan F. Asturiano   +2 more
doaj   +1 more source

Inferring Life History Characteristics of the Oceanic Whitetip Shark Carcharhinus longimanus From Vertebral Bomb Radiocarbon

Frontiers in Marine Science, 2020
Oceanic whitetip sharks Carcharhinus longimanus are a cosmopolitan epipelagic species that was once prolific throughout the tropics and subtropics but was recently listed as Critically Endangered by the International Union for the Conservation of Nature ...
Michelle S. Passerotti, Allen H. Andrews, Lisa J. Natanson   +2 more
doaj   +1 more source

Intensive Commercialization of Endangered Sharks and Rays (Elasmobranchii) Along the Coastal Amazon as Revealed by DNA Barcode

Frontiers in Marine Science, 2021
Elasmobranchs represent a well-defined group, composed of about 1,150 species inhabiting diverse aquatic environments. Currently, several of these species have been classified as threaten due to overexploitation.
Thais Martins, Paula Santana, Ítalo Lutz, Raimundo da Silva, Aurycéia Guimarães-Costa, Marcelo Vallinoto, Iracilda Sampaio, Grazielle Evangelista-Gomes   +7 more
doaj   +1 more source

Complete mitochondrial genome of the gray reef shark, Carcharhinus amblyrhynchos (Carcharhiniformes: Carcharhinidae)

Mitochondrial DNA. Part B. Resources, 2020
We report the first mitochondrial genome sequences for the gray reef shark, Carcharhinus amblyrhynchos. Two specimens from the British Indian Ocean Territory were sequenced independently using two different next generation sequencing methods, namely ...
Nicholas Dunn, Shaili Johri, David Curnick, Chris Carbone, Elizabeth A. Dinsdale, Taylor K. Chapple, Barbara A. Block, Vincent Savolainen   +7 more
doaj   +1 more source

Phage Diving: An Exploration of the Carcharhinid Shark Epidermal Virome

Viruses, 2022
The epidermal microbiome is a critical element of marine organismal immunity, but the epidermal virome of marine organisms remains largely unexplored. The epidermis of sharks represents a unique viromic ecosystem.
Ryan D. Hesse, Michael Roach, Emma N. Kerr, Bhavya Papudeshi, Laís F. O. Lima, Asha Z. Goodman, Lisa Hoopes, Mark Scott, Lauren Meyer, Charlie Huveneers, Elizabeth A. Dinsdale   +10 more
doaj   +1 more source