Results 91 to 100 of about 2,581 (229)

Anatomía comparada del sistema digestivo de las rayas Urotrygon chilensis y Dasyatis sabina (Myliobatiformes) Comparative anatomy of the digestive system of the skates, Urotrygon chilensis and Dasyatis sabina (Myliobatiformes)

Revista Chilena de Historia Natural, 2010
La organización general del sistema digestivo de la raya pinta Urotrygon chilensis y la raya de espina Dasyatis sabina corresponde al patrón morfológico general de los Myliobatiformes.
ABRAHAM KOBELKOWSKY
doaj  

Miocene stratigraphy and vertebrate paleontology along the western side of Cerros Cadena de los Zanjones (East Pisco Basin, Peru)

Journal of Maps
The Miocene Pisco Formation (East Pisco Basin, Peru) is renowned for its abundant, well-preserved fossils of marine vertebrates, representing one of the most spectacular and complete records of Neogene marine vertebrates worldwide.
Giulia Bosio, Alberto Collareta, Matteo Pedini, Maria Elena Gastaldello, Francesco Nobile, Luca Pellegrino, Pietro Paolo Pierantoni, Elisa Malinverno, Olivier Lambert, Giuseppe Marramà, Walter Landini, Giorgio Carnevale, Rafael Varas-Malca, Claudio Di Celma, Stefano Mazzoli, Mario Urbina, Giovanni Bianucci   +16 more
doaj   +1 more source

Comparative assessment of eDNA metabarcoding and longline deployments for elasmobranch surveying across a large tropical marine park network

Aquatic Conservation: Marine and Freshwater Ecosystems, Volume 34, Issue 4, April 2024.
Abstract Medium‐ to large‐scale marine protected areas (MPAs) are playing an increasingly important role in global marine biodiversity conservation. A key question is “how do we collect relevant data on biodiversity and population trends to inform their design and measure success?” This question is particularly relevant for marine taxa that are ...
Katrina M. West, Alastair V. Harry, Sam Payet, Euan Harvey, Dambimangari Rangers, Bardi‐Jawi Rangers, Karajarri Rangers, Yawuru Country Managers, Michael J. Travers   +8 more
wiley   +1 more source

Diel vertical migration of the bigeye thresher shark (Alopias superciliosus), a species possessing orbital retia mirabilia [PDF]

, 2004
The bigeye thresher shark (Alopias superciliosus, Lowe 1841) is one of three sharks in the family Alopiidae, which occupy pelagic, neritic, and shallow coastal waters throughout the altropics and subtropics (Gruber and Compagno, 1981; Castro, 1983).
Block, Barbara A., Weng, Kevin C.
core  

Rostral and body shape analyses reveal cryptic diversity of Late Jurassic batomorphs (Chondrichthyes, Elasmobranchii) from Europe

Papers in Palaeontology, Volume 10, Issue 2, March/April 2024.
Abstract The fossil record of chondrichthyans (chimaeras, sharks, rays and skates) consists largely of isolated teeth, with holomorphic specimens being extraordinary exceptions. However, numerous of these more or less completely preserved specimens are known from several Upper Jurassic deposits of Europe, enabling detailed analysis of their morphology.
Julia Türtscher, Patrick L. Jambura, Eduardo Villalobos‐Segura, Faviel A. López‐Romero, Charlie J. Underwood, Detlev Thies, Bruce Lauer, René Lauer, Jürgen Kriwet   +8 more
wiley   +1 more source

Earliest Danian outer neritic elasmobranch assemblages reveal an environmentally controlled faunal turnover at the Cretaceous–Palaeogene boundary in the northern Tethyan Realm (Austria)

Papers in Palaeontology, Volume 10, Issue 1, January/February 2024.
Abstract This study reports elasmobranch remains from two fossil‐rich horizons in the earliest Danian Olching Formation at Waidach, Austria. These outer neritic assemblages complement previous fine‐scale bulk‐sampling of latest Maastrichtian horizons at Waidach and document a regional elasmobranch faunal turnover across the Cretaceous–Palaeogene (K–Pg)
Iris Feichtinger, Jürgen Pollerspöck, Mathias Harzhauser, Gerald Auer, Stjepan Ćorić, Matthias Kranner, Bernhard Beaury, Guillaume Guinot   +7 more
wiley   +1 more source

From historical expedition diaries to whole genome sequencing: A case study of the likely extinct Red Sea torpedo ray

Zoologica Scripta, Volume 53, Issue 1, Page 32-51, January 2024.
Abstract Torpedo rays (Torpedinidae, Torpediniformes) are small to moderately large batoids that produce an electric discharge. They are distributed worldwide in temperate and tropical seas and are, as a result of their bottom‐dwelling behaviour, susceptible to trawl fishing and often end up as victims of bycatch.
Anja Palandačić, Martin Kapun, Carola Greve, Tilman Schell, Sandra Kirchner, Luise Kruckenhauser, Nikolaus Szucsich, Nina Bogutskaya   +7 more
wiley   +1 more source

THE VALID SPECIES AND DISTRIBUTION OF STINGRAYS (Myliobatiformes: Dasyatidae) IN SOUTH SUMATERA WATERS, INDONESIA

Biovalentia: Biological Research Journal, 2018
A recent study to providing valid checklist of stingrays species in South Sumatran waters provide 14 species: Brevitrygon heterura, Fluvitrygon kittipongi, Fluvitrygon oxyrhyncha, Fluvitrygon signifier, Fluvitrygon sp ‘musi’ 1, Fluvitrygon sp ‘musi’ 2 ...
Muhammad Iqbal, Hilda Zulkifli, Indra Yustian   +2 more
doaj   +1 more source

An unusual, dwarf new species of Neotropical freshwater stingray, Plesiotrygon nana sp. nov., from the upper and mid Amazon basin: the second species of Plesiotrygon (Chondrichthyes: Potamotrygonidae)

Papéis Avulsos de Zoologia, 2011
A new species of the relatively poorly known Neotropical freshwater stingray genus Plesiotrygon Rosa, Castello & Thorson, 1987 is described from the main channel and smaller tributaries (Ríos Itaya and Pachitea) of the upper Amazon basin in Peru.
Marcelo R. de Carvalho, Maíra P. Ragno
doaj   +1 more source

Régime alimentaire de Dasyatis pastinaca et Myliobatis aquila (Elasmobranchii: Myliobatiformes) des Açores, Atlantique NE [PDF]

, 2016
This paper describes and discusses the feeding ecology of two stingray species that occur in the Azores: Dasyatis pastinaca and Myliobatis aquila. Both are common coastal species associated with sandy, muddy and rocky bottoms, from surface waters to ...
Barcelos, Luís Miguel Duarte, Barreiros, João P., Medeiros, João, Ponte, Dário Dinis Sousa, Santos, Cristina Sousa   +4 more
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