Results 31 to 40 of about 1,884 (202)
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 +2 more
doaj +1 more source
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 PiscatoriaThis 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 +5 more
doaj +3 more sources
Fishing characters of skate ray, Raja pulchra by the offshore longline fishery in Heuksan-do, Korea [PDF]
Bulletin of the Korean society of Fisheries Technology, 2011 Catches, CPUE, fishing season, disc width composition and fishing ground were studied to rebuild skate ray, Raja pulchra resource by the offshore longline fishery in Heuksan-do, Korea. Annual catches and CPUE of skate ray were increased from 2003 to 2010 (CPUE: from 2007 to 2010) continuously.
Hyun-Su Jo +6 more
openaire +1 more source
Preliminary observations on the life history and movements of skates (Rajidae) around the Island of Jersey, western English Channel [PDF]
, 2010 The most frequently caught skate species around Jersey include blonde ray Raja brachyura, undulate ray Raja undulata, small-eyed ray Raja microocellata and thornback ray Raja clavata.
J.R. Ellis, G. Morel, G. Burt, S. Bossy
core +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 +5 more
doaj
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 +10 more
doaj +1 more source
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 +4 more
wiley +1 more source
Catching fish on skates - D 10 Cariboo [PDF]
, 1930 Image of three people with ice skates on a frozen pond holding ...
core
Frontiers in Marine Science, 2019 Current knowledge on the feeding ecology of the Greenland shark (Somniosus microcephalus), a potential top predator in arctic marine ecosystems, is based on small sample sizes as well as narrow size ranges of sharks.
Julius Nielsen +11 more
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Berichte zur Wissenschaftsgeschichte, EarlyView.Since late 2021, serious allegations have been made against physicist Erwin Schrödinger, ranging from pedophilia to serial sexual abuse. These accusations have significantly tarnished the Nobel Prize winner's public reputation. The ongoing debate has repeatedly raised the question of whether, and to what extent, these grave allegations are justified ...
Magdalena Gronau, Martin Gronau
wiley +1 more source