Results 81 to 90 of about 1,907 (179)

A blacktip's black tip: The reliability of using dorsal‐fin patterns for photo identification of blacktip reef sharks (Carcharhinus melanopterus)

open access: yesJournal of Fish Biology, Volume 107, Issue 4, Page 1224-1236, October 2025.
Abstract Photo identification (photo ID) has increasingly become a valuable technique serving not only to identify individual animals but also to monitor populations, track migration patterns and assess wildlife health, among others uses. Various species of sharks are amenable to photo ID, among which the blacktip reef shark (Carcharhinus melanopterus)
Laetitia A. M. G. Lionnet   +5 more
wiley   +1 more source

Genetic differentiation and phylogeography of Mediterranean-North Eastern Atlantic blue shark (Prionace glauca, L. 1758) using mitochondrial DNA: Panmixia or complex stock structure? [PDF]

open access: yes, 2017
Background The blue shark (Prionace glauca, Linnaeus 1758) is one of the most abundant epipelagic shark inhabiting all the oceans except the poles, including the Mediterranean Sea, but its genetic structure has not been confirmed at basin and ...
Bargelloni, Luca   +17 more
core   +7 more sources

Image‐Based Individual Fish Identification as a Substitute for Invasive Methods: State‐of‐the‐Art and Research Gaps

open access: yesReviews in Aquaculture, Volume 17, Issue 4, September 2025.
ABSTRACT Individual identification of fish within the same species is one of the most crucial and frequently performed tasks in aquaculture research, and it is also widely used in aquaculture production. Fish sampling, treating, welfare, and disease state estimation are increasingly turning from group‐based to individualized.
Mohammad Mehdi Ziaei   +2 more
wiley   +1 more source

Regional variability in the trophic requirements of shelf sea fisheries in the Northeast Atlantic, 1973-2000 [PDF]

open access: yes, 2005
Hydrographic, plankton, benthos, fisheries landings, and fish diet data from shelf sea areas in the Northeast Atlantic have been combined into an analysis of the foodweb structure and secondary production requirements of regional fisheries. Fish landings
Baretta-Bekker   +22 more
core   +1 more source

Enigmatic Nodal and Lefty gene repertoire discrepancy: Latent evolutionary history revealed by vertebrate‐wide phylogeny

open access: yesDevelopmental Dynamics, Volume 254, Issue 8, Page 887-901, August 2025.
Abstract Homology in vertebrate body plans is traditionally ascribed to the high‐level conservation of regulatory components within the genetic programs governing them, particularly during the “phylotypic stage.” However, advancements in embryology and molecular phylogeny have unveiled the dynamic nature of gene repertoires responsible for early ...
Shigehiro Kuraku
wiley   +1 more source

Drivers of behaviour and spatial ecology of the small-spotted catshark (Scyliorhinus canicula) [Poster]

open access: yes, 2022
Shark populations have suffered dramatic declines across the world as a result of overfish- ing. Marine protected areas (MPAs) can help restore overfished populations; however, their effectiveness largely relies on understanding the ecology of the targeted species.
Papadopoulo, Kenn   +4 more
openaire   +1 more source

Overview of the Fish Diversity of Indian Waters [PDF]

open access: yes, 2018
Fishing is one of the oldest human activities and it developed gradually, when our ancestors moved from the collection of plants and animals to hunting by using tools and weapons. The oldest fishing implements so far identified are harpoons, found in
Dinesh Kumar, S, Nair, Rekha J
core  

Hagfish and lamprey Hox genes reveal conservation of temporal colinearity in vertebrates [PDF]

open access: yes, 2018
Hox genes exert fundamental roles for proper regional specification along the main rostro-caudal axis of animal embryos. They are generally expressed in restricted spatial domains according to their position in the cluster (spatial colinearity)—a feature
A Stamatakis   +64 more
core   +2 more sources

Changes in the structure and functionof the North Sea fish foodweb, 1973-2000, and the impacts of fishing and climate [PDF]

open access: yes, 2005
North Sea environmental and biological data were analysed to examine 30-year changes in production and consumption in the fish food web. The analysis revealed that the demand for secondary production placed on the ecosystem by fish declined from ...
Beare   +47 more
core   +1 more source

Animal releasing devices for deep‐sea ecological studies

open access: yesRestoration Ecology, Volume 33, Issue 5, July 2025.
Ecological studies and restoration efforts in deep‐sea environments are a priority for international programs aimed at preserving biodiversity and recovering ocean health. These efforts, however, face technical challenges, particularly in the controlled placement of megafauna individuals near the seabed.
Nixon Bahamon   +7 more
wiley   +1 more source

Home - About - Disclaimer - Privacy