Results 101 to 110 of about 30,695 (275)

Cod otoliths document accelerating climate impacts in the Baltic Sea

Scientific Reports
Anthropogenic deoxygenation of the Baltic Sea caused major declines in demersal and benthic habitat quality with consequent impacts on biodiversity and ecosystem services. Using Baltic cod otolith chemical proxies of hypoxia, salinity, and fish metabolic
Yvette Heimbrand, Karin Limburg, Karin Hüssy, Tomas Næraa, Michele Casini   +4 more
doaj   +1 more source

Plasticity in the reproductive biology of Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake following lake trout Salvelinus namaycush invasion

Journal of Fish Biology, EarlyView.
Abstract Yellowstone cutthroat trout Oncorhynchus virginalis bouvieri in Yellowstone Lake are the focus of intensive conservation efforts due to the threat of predation by invasive lake trout Salvelinus namaycush. Suppression gillnetting has reduced the abundance of predatory lake trout, and the Yellowstone cutthroat trout population is recovering ...
Michelle A. Briggs, Molly A. H. Webb, Christopher S. Guy, Todd M. Koel   +3 more
wiley   +1 more source

Approaches to otolith age determination: image signal treatment and age attribution

Scientia Marina, 1998
Population studies of fish depend upon correct age estimates. However ageing from otoliths is often a subjective activity, based on experience. To produce more objective and reproducible results, image analysis systems for semi-automatic otolith reading ...
Beatriz Morales-Nin, Antoni Lombarte, Beatriz Japón   +2 more
doaj   +1 more source

Age, Growth, Life History, and Fisheries of the Sand Sole, Psettichthys melanostictus [PDF]

, 2005
Sand sole, Psettichthys melanostictus, is a small but important part of the west coast groundfish fishery. It has never been assessed and there is a limited amount of biological data for the species.
McNally, Samuel V. G., Pearson, Donald E.   +1 more
core  

Biological aspects and population dynamics of the European pilchard Sardina pilchardus (Walbaum, 1792) in the southeastern Mediterranean waters

Journal of Fish Biology, EarlyView.
Abstract The European pilchard, Sardina pilchardus, is a key small pelagic fish sustaining Mediterranean ecosystems and fisheries. This study represents the first comprehensive biological and population dynamics assessment of the European pilchard by applying the length‐based spawning potential ratio (LB‐SPR) approach to S.
Mohab Badreldin, Reda M. Fahim, Lafi Al Solami, Hatem H. Mahmoud   +3 more
wiley   +1 more source

Phenotypic variation in otolith shape of American shad across eastern North American rivers

Scientific Reports
Otolith shape analysis has been widely applied to study population structure and environmental influences in various fish species. However, research on American shad (Alosa sapidissima) otolith morphology remains scarce, despite its potential to provide ...
Joana Vasconcelos, Karin E. Limburg, José Luis Oterro-Ferrer, Víctor M. Tuset   +3 more
doaj   +1 more source

Shedding light on the parasite communities and diet of the deep‐sea shark Deania profundorum (Smith & Radcliffe, 1912) (Squaliform: Centrophoridae) from the Avilés Canyon (southern Bay of Biscay)

Journal of Fish Biology, EarlyView.
Abstract Deep‐sea elasmobranchs are less resilient to the increasing scale of anthropogenic impacts such as fisheries, owing to their life‐history traits. The necessity for proper management measures is hampered by the scant knowledge on these taxa and their biology. Here we provide the first comprehensive insight into the parasite infracommunities and
Wolf Isbert, Cristina Rodríguez‐Cabello, Francisco E. Montero, Maite Carrassón, Inmaculada Frutos, Ana Pérez‐del‐Olmo   +5 more
wiley   +1 more source

Return migration to fresh water and overwintering locations used by sympatric anadromous populations of Arctic char (Salvelinus alpinus) and Dolly Varden (Salvelinus malma malma)

Journal of Fish Biology, EarlyView.
Abstract Anadromous Arctic char (Salvelinus alpinus) and northern form Dolly Varden (Salvelinus malma malma) are highly valued by Indigenous communities in northern Canada. Rapid, ongoing environmental changes are affecting populations of both of these iteroparous species, and understanding variability in life‐history tactics is essential for ...
Rosie Smith, Eric Hitkolok, Amanda Dumond, Simon DePasquale, Hannah Thibault, Spencer Weinstein, Paul Craig, Tracey Loewen, Heidi Swanson   +8 more
wiley   +1 more source

Otoliths in situ in Pinichthys shirvanensis Bannikov, 2021 (Stromateidae) from the Tarkhanian (Langhian, Middle Miocene) of the northern Caucasus (Russia)

Swiss Journal of Palaeontology
Otolith finds in situ are important for connecting the independent data sets of articulated fish skeletons and isolated otoliths in the fossil record. Here we describe an otolith in situ retrieved from a skeleton of the stromateid Pinichthys shirvanensis
Werner W. Schwarzhans, Alexandre F. Bannikov   +1 more
doaj   +1 more source

Does any fish scale of a fish have the same number of marks? A case study for two Mugilidae species

Journal of Fish Biology, EarlyView.
Abstract This study evaluates the difference in growth marks in scales from nine body areas of two Mugilidae species from the Gulf of Mexico: Mugil curema and Mugil cephalus. It addresses whether the different body areas show more (or fewer) marks, and which area(s) would be more useful in fish biology studies relying on mark analysis.
Ebenecer Guerra, Arturo Bell Enríquez‐García, Víctor H. Cruz‐Escalona, Eloísa Pacheco‐Almanzar, Sergio Álvarez‐Hernández, Emigdio Marín‐Enríquez, Ana Laura Ibáñez   +6 more
wiley   +1 more source