Results 71 to 80 of about 3,259 (192)
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
Mitigating the effect of by‐catch on endangered marine life
Animal Conservation, Volume 28, Issue 2, Page 172-184, April 2025.Fishing gears cause substantial impacts on the oceans and their ecosystems, and many marine animals, such as sea turtles, marine mammals, seabirds and elasmobranchs, end up as by ‐catch. In this paper, the most effective mitigation measures were investigated for each group, taking into account the fishing gear with which they interact most.
M. Villafáfila +2 more
wiley +1 more source
Brazilian Journal of Biology, 2010 The oviductal gland is an exclusive structure of cartilaginous fishes that produces the egg jelly, forms the tertiary egg envelopes and stores sperm.
EJ Galíndez +3 more
doaj
Zoologia (Curitiba), 2011 Squamation patterns and skeletal anatomy (neurocranium, visceral arches, synarcual cartilage, scapulocoracoid, puboischiadic bar, and mixopterigium) of Dipturus mennii Gomes & Paragó, 2001 are described as a contribution to our limited knowledge of the ...
Renan A Moreira +2 more
doaj +1 more source
Length-weight relationship of marine fish species off Sao Sebastiao system, Sao Paulo, Southeastern Brazil [PDF]
, 2000 The parameters a and b of the length-weight relationship of the form W = a . L super(b) were estimated for 57 fish species sampled in Sao Sebastiao Channel and shelf system in 1997, Sao Paulo, Brazil. The b values ranged from 2.746 to 3.617.
Muto, E.Y. +2 more
core
Ecology and Evolution, Volume 15, Issue 2, February 2025.The goal of this study was to leverage existing survey technology to design and test an eDNA sampler that captures an integrated eDNA sample over the length of a deep‐water transect. We provide a biological interpretation of the resulting data, demonstrating the usefulness of such technology to understand the ocean environments, using fish species as ...
Cindy Bessey +11 more
wiley +1 more source
Abnormal hermaphroditism in the multispine skate Bathyraja multispinis (Chondrichthyes, Rajidae)
Journal of Fish Biology, 2007 A hermaphroditic individual of the multispine skate, Bathyraja multispinis, caught on the Argentinean continental shelf, is described. This is the first record of hermaphroditism in the genus Bathyraja and one of the very few hermaphroditic specimens reported in the Rajidae.
Scenna, Lorena Beatriz +2 more
openaire +2 more sources
A record of the Porbeagle, Lamna nasus, in coastal waters of Buenos Aires (Argentina) confirmed by DNA barcoding [PDF]
, 2015 A record of a juvenile Porbeagle, Lamna nasus, in the coastal waters of Argentina is confirmed by DNA barcoding, since the specimen lacked some external diagnostic features.
Díaz de Astarloa, Juan Martín +2 more
core +1 more source
Diversity and Distributions, Volume 31, Issue 2, February 2025.ABSTRACT Aim Oviparous elasmobranchs lay benthic eggs with long incubation periods, many of which also require habitat‐forming sessile organisms for their development. However, they are threatened by bottom‐trawling fishing impacts. Here, we aimed to identify the suitable habitat distribution of small‐spotted catshark (Scyliorhinus canicula) egg ...
Miguel López +7 more
wiley +1 more source
Trends in elasmobranch feeding ecology studies
Ocean and Coastal ResearchReviews can be useful to provide an overview of specific knowledge areas to facilitate research guidelines and the comparison of study results.
Hugo Bornatowsk +2 more
doaj +1 more source