Results 31 to 40 of about 1,867,141 (163)

Survey sequencing and comparative analysis of the elephant shark (Callorhinchus milii) genome.

PLoS Biology, 2007
Owing to their phylogenetic position, cartilaginous fishes (sharks, rays, skates, and chimaeras) provide a critical reference for our understanding of vertebrate genome evolution.
Byrappa Venkatesh, Ewen F Kirkness, Yong-Hwee Loh, Aaron L Halpern, Alison P Lee, Justin Johnson, Nidhi Dandona, Lakshmi D Viswanathan, Alice Tay, J Craig Venter, Robert L Strausberg, Sydney Brenner   +11 more
doaj   +1 more source

Comparative genomics of chondrichthyan Hoxa clusters

BMC Evolutionary Biology, 2009
Background The chondrichthyan or cartilaginous fish (chimeras, sharks, skates and rays) occupy an important phylogenetic position as the sister group to all other jawed vertebrates and as an early lineage to diverge from the vertebrate lineage following ...
Zhong Ying-Fu, Mulley John F, Holland Peter WH   +2 more
doaj   +1 more source

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

Journal of Fish Biology
Levels of dissolved oxygen in open ocean and coastal waters are decreasing (ocean deoxygenation), with poorly understood effects on marine megafauna.
Matt J. Waller, Nicolas E. Humphries, Freya C. Womersley, A. Loveridge, Amy L. Jeffries, Yuuki Y. Watanabe, Nicholas L Payne, J. Semmens, N. Queiroz, E. Southall, D. W. Sims   +10 more
semanticscholar   +1 more source

Fish Commission research briefs. Vol. 3, no. 1

These short reports are intended to inform the public, industry, and other interested parties of the current studies of the Commission's staff and the basis for conservation measures.
Oregon. Fish Commission
core   +6 more sources

Fisheries and ecology of the skates (Rajiformes: Rajidae) in the English Channel

Life and Environment, 2020
Skates are the main elasmobranch species exploited in the Northern Atlantic Ocean in France and the United Kingdom, especially in the English Channel. The reported international landings show that the fishery is actually dominated by five species Raja ...
S. Biton-Posmoguer
semanticscholar   +1 more source

Commercial catches, reproduction and feeding habits of Raja asterias (Chondrichthyes: Rajidae) in a coastal area of the Tyrrhenian Sea (Italy, northern Mediterranean) [PDF]

Acta Adriatica, 2007
A total of 52 “rapido” (towed toothed beam gears) trawls were monitored in late winter-summer of the 1999-2000 period to assess the R. asterias size structure at this time of higher yields as well as 36 fishing operations performed by “volantina” (trawl ...
Marino VACCHI, Maria Grazia FINOIA, Ivan CONSALVO, Umberto SCACCO, Alessandro COLASANTE, Michele ROMANELLI   +5 more
doaj  

Cartilaginous fish diversity in the Western Visayas, Philippines, including two putative unidentified species and the first record of Carcharhinus plumbeus (Elasmobranchii: Carcharhiniformes: Carcharhinidae) [PDF]

Acta Ichthyologica et Piscatoria
This annotated checklist documents the diversity of cartilaginous fishes, including sharks, batoids (rays and skates), and chimaeras, from Panay and Guimaras islands, Western Visayas, Philippines, through surveys at fish markets and ports.
Roxanne Cabebe-Barnuevo, Dianne Frances Penuela, Emmanuel S. Delloro Jr., Ricardo P. Babaran, Hiroyuki Motomura, Maria Celia D. Malay   +5 more
doaj   +3 more sources

Epigonal Conditioned Media from Bonnethead Shark, Sphyrna tiburo, Induces Apoptosis in a T-Cell Leukemia Cell Line, Jurkat E6-1

Marine Drugs, 2013
Representatives of Subclass Elasmobranchii are cartilaginous fish whose members include sharks, skates, and rays. Because of their unique phylogenetic position of being the most primitive group of vertebrates to possess all the components necessary for ...
Courtney Bennett, Ashby B. Bodine, Marissa Ciesla, Philip Adams, Brittany Leigh, Stephanie R. Leggett, Jodi Miedema, Theresa Cantu, Carl A. Luer, Jennifer E. Yordy, Catherine J. Walsh   +10 more
doaj   +1 more source

Marine‐Derived Type I Collagen From Scyliorhinus canicula: Extraction, Characterization, and Biomedical Applications

Journal of Applied Polymer Science, EarlyView.
Marine‐derived type I collagen is extracted from Scyliorhinus canicula skin and characterized by physicochemical and morphological analyses. The collagen exhibits excellent biocompatibility, promotes wound healing, reduces inflammatory mediators, and inhibits melanogenesis.
Marwa Rejeb, Aida Lahmar, Arem Selmi, Tahsine Kosksi, Nawres Debbabi, Ghania Hamdi‐Degobert, Leila Chekir‐Ghedira   +6 more
wiley   +1 more source

Developmental morphology of claspers and clasper‐glands during maturation in Potamotrygon wallacei (Chondrichthyes: Potamotrygoninae)

The Anatomical Record, EarlyView.
Abstract The claspers are the copulatory organs in male elasmobranchs, responsible for directing the semen into the female cloaca (C). However, the microscopic morphology of the claspers remains poorly understood. This study describes the morphology of the claspers and clasper glands (CGs) of cururu stingray (Potamotrygon wallacei) at different ...
Matheus Samuel Cunha Braga, Grazyelle Sebrenski da Silva, Maria Inês Braga de Oliveira, Jaydione Luiz Marcon, Ruben Dario Morales Gamba   +4 more
wiley   +1 more source