Results 91 to 100 of about 9,474 (259)
Scientia Marina, 2015 In order to characterize the ontogeny of Anchoa tricolor, the morphology and morphometry of sagitta otoliths were described. A total of 397 pairs of sagitta otoliths of A.
Barbara Maichak de Carvalho +3 more
doaj +1 more source
Contemporary Methods for Capturing Juvenile Salmonids in the Marine Environment
Fish and Fisheries, EarlyView.ABSTRACT Anadromous salmonids play vital roles in marine and freshwater ecosystems. The most abundant of these fishes—Pacific salmon (Oncorhynchus spp.)—are integral to coastal ecosystems and communities across the North Pacific Rim, but numerous populations are experiencing dramatic declines, particularly towards the south of their range.
Sean C. Godwin +6 more
wiley +1 more source
Explaining decisions of deep neural networks used for fish age prediction.
PLoS ONE, 2020 Age-reading of fish otoliths (ear stones) is important for the sustainable management of fish resources. However, the procedure is challenging and requires experienced readers to carefully examine annual growth zones.
Alba Ordoñez +5 more
doaj +1 more source
Modification of the biological intercept model to account for ontogenetic effects in laboratory-reared delta smelt (Hypomesus transpacificus)* [PDF]
, 2007 We investigated age, growth, and ontogenetic effects on the proportionality of otolith size to fish size in laboratory-reared delta smelt (Hypomesus transpacificus) from the San Francisco Bay estuary.
Baskerville-Bridges, Bradd +3 more
core
A Conceptual Framework and Methods for Studying the Connectivity of Fishes
Fish and Fisheries, EarlyView.ABSTRACT Connectivity is a multifaceted concept that has important implications for the management and conservation of marine and freshwater fishes. We developed a conceptual framework that encompasses multiple, interrelated categories of connectedness, including landscape (e.g., structural, functional) connectivity and ecological (e.g., trophic ...
Jordanna N. Bergman +18 more
wiley +1 more source
Croatian Journal of Fisheries, 2018 Sagittae otoliths of eight juvenile species: Boops boops, Diplodus vulgaris, Diplodus puntazzo, Sarpa salpa (family Sparidae), Liza ramada, Liza aurata (family Mugilidae), Atherina boyeri, Atherina hepsetus (family Atherinidae) were analysed and compared
Ferri Josipa +2 more
doaj +1 more source
Age and growth of swordfish (Xiphias gladius) caught by the Hawaii-based pelagic longline fishery [PDF]
, 2007 We verified the age and growth of swordfish (Xiphias gla-dius) by comparing ages determined from annuli in fin ray sections with daily growth increments in otoliths.
DeMartini, Edward E. +4 more
core
Fisheries Management and Ecology, EarlyView.ABSTRACT Shore‐based observers are increasingly being used in place of at‐sea observers to monitor and sample commercial fisheries catch. However, few evaluations assess whether these programs meet their stated goals or how to optimize them, and industry data are rarely tested for accuracy despite serving as the foundation for catch accounting. Using a
Christian Gredzens +2 more
wiley +1 more source
Scientia Marina, 2013 Inter-population differences in otolith shape, morphology and chemistry have been used effectively as indicators for stock assessment or for recognizing environmental adaptation in fishes.
Ali Annabi +2 more
doaj +1 more source
Fisheries Management and Ecology, EarlyView.ABSTRACT Greenland halibut (Reinhardtius hippoglossoides) is a deep‐water flatfish which lives at temperatures of 1°C–4°C and produces large eggs (> 3 mm). The combination of low temperatures and large eggs has resulted in an unusual ovary development cycle, with vitellogenesis taking more than 1 year.
James Kennedy +3 more
wiley +1 more source