Results 51 to 60 of about 384 (156)

A SURVEY OF THE TAPEWORM FAUNA OF THE COWNOSE RAY, RHINOPTERA BONASUS, FROM THE NORTHERN GULF OF MEXICO WITH COMMENTS ON INTERMEDIATE HOSTS [PDF]

, 2007
This survey determined the cestode diversity parasitizing the spiral intestine of the cownose ray, Rhinoptera bonasus (Mitchill), in the northern Gulf of Mexico.
Call, Garrett
core  

Morphological conservation of rays in the genus Rhinoptera (Elasmobranchii, Rhinopteridae) conceals the occurrence of a large batoid, Rhinoptera brasiliensis Müller, in the northern Gulf of Mexico [PDF]

, 2017
In 2007, three rays identified as Rhinoptera brasiliensis based on tooth series counts were captured in the northern Gulf of Mexico, a region far outside their accepted range of the coastal waters of southern Brazil. Genetic analyses confirmed that these
FÁBIO H. V. HAZIN, MARK A. ROBERTS, JOSEPH M. QUATTRO, WILLIAM B. III DRIGGERS, GREGG R. POULAKIS, CHRISTIAN M. JONES, J. FERNANDO MÁRQUEZ-FARÍAS, MARIANA G. RÊGO, JUSTIN LEWANDOWSKI, ERIC R. HOFFMAYER, MARCELO R. DE CARVALHO, JILL M. HENDON, MATTHEW J. AJEMIAN   +12 more
core   +1 more source

Distribution, abundance, and behavior of the cownose ray, Rhinoptera bonasus (Mitchill 1815), in lower Chesapeake Bay [PDF]

, 1992
Aspects of the ecology of the cownose ray, Rhinoptera bonasus, in the lower Chesapeake Bay and its tributaries were studied using aerial surveys, biotelemetry, and examination of stomach contents.
Blaylock, Robert A.
core   +1 more source

Evidence of dystocia in an oviparous shark

Journal of Fish Biology, Volume 105, Issue 3, Page 1004-1007, September 2024.
Abstract Dystocia, or obstructed labor, is a well‐documented phenomenon in various captive vertebrates, including fish. However, despite the documentation of dystocia in several viviparous (live‐bearing) Chondrichthyan species (i.e., sharks, rays, skates, and chimaeras), there are no reports to date of dystocia in any oviparous (egg‐laying) species ...
Carolyn R. Wheeler, Jodie L. Rummer
wiley   +1 more source

POPULATION GENETICS OF COWNOSE RAYS, RHINOPTERA SPP. IN THE WESTERN ATLANTIC [PDF]

, 2022
Using molecular tools (e.g., the NADH subunit II mitochondrial gene), this study was the first to document the Brazilian cownose ray, Rhinoptera brasiliensis, within the northwestern Atlantic (NWA), and was the first study to examine population structure
Weber, Helen
core   +1 more source

Communities of metazoan parasites in seven sympatric skate species (Elasmobranchii, Rajidae) from the English Channel and Celtic Sea differing in conservation status

Journal of Fish Biology, Volume 105, Issue 3, Page 975-987, September 2024.
Abstract Elasmobranch populations are in steep decline mainly due to overfishing bycatch, but parasites may accelerate the collapse of vulnerable and/or highly parasitized species. We therefore studied metazoan parasites of Rajidae from the northeast Atlantic: vulnerable Leucoraja fullonica, near‐threatened Raja brachyura, Raja clavata, Raja ...
Claudia Gérard, Caroline Trochard, Maxime R. Hervé, Héloïse Hamel, Mélanie Gay, Michel Barbier, Thomas Trancart, Thomas Barreau   +7 more
wiley   +1 more source

The vulnerability of sharks, skates, and rays to ocean deoxygenation: Physiological mechanisms, behavioral responses, and ecological impacts

Journal of Fish Biology, Volume 105, Issue 2, Page 482-511, August 2024.
Abstract Levels of dissolved oxygen in open ocean and coastal waters are decreasing (ocean deoxygenation), with poorly understood effects on marine megafauna. All of the more than 1000 species of elasmobranchs (sharks, skates, and rays) are obligate water breathers, with a variety of life‐history strategies and oxygen requirements.
Matt J. Waller, Nicolas E. Humphries, Freya C. Womersley, Alexandra Loveridge, Amy L. Jeffries, Yuuki Watanabe, Nicholas Payne, Jayson Semmens, Nuno Queiroz, Emily J. Southall, David W. Sims   +10 more
wiley   +1 more source

Life History and Distribution of Two Species of Cownose Ray, Rhinoptera bonasus and Rhinoptera brasiliensis, in Mississippi Coastal Waters [PDF]

Historically, the American Cownose Ray (Rhinoptera bonasus) was considered the only rhinopterid residing in the northern Gulf of Mexico (GOM); however, recent studies have confirmed the presence of the Brazilian Cownose Ray (Rhinoptera brasiliensis ...
Millender, Anna
core  

Spatiotemporal Distribution and Abundance of Atlantic Stingrays (Dasyatis sabina) and Cownose Rays (Rhinoptera bonasus) in Galveston Bay, TX [PDF]

, 2020
As mesopredators, stingrays play a crucial role in coastal and estuarine food webs by feeding on benthic prey and being consumed by pelagic apex predators.
Graves, Madison, Brogdon, Jenna
core  

Physiologic responses of Cownose Rays following freshwater dips for treatment of capsalid monogeneans

Journal of Aquatic Animal Health, Volume 36, Issue 2, Page 128-135, June 2024.
Abstract Objective Two Cownose Rays Rhinoptera bonasus were presented for management of a severe capsalid monogenean infection Benedeniella posterocolpa in a mixed species habitat at an aquarium. Methods A series of freshwater (FW) dips were elected to mitigate parasite resistance to praziquantel due to the endemic monogenean population in the system ...
Amber M. Lum, Sarah N. Miller, Tonya M. Clauss, Chelsea E. Anderson   +3 more
wiley   +1 more source