Results 51 to 60 of about 224 (139)

Can small pelagic fish landings be used as predictors of high-frequency oceanographic fluctuations in the 1–2 El Niño region? [PDF]

open access: yesAdvances in Geosciences, 2016
A group of small pelagic fish captured between 1981 and 2012 within El Niño area 1–2 by the Ecuadorian fleet was correlated with the oceanographic Multivariate ENSO Index (MEI), and the Oceanographic El Niño Index (ONI) referred to El Niño region 3–4.
F. I. Ormaza-González   +5 more
doaj   +1 more source

Hyperostosis in Fishes: An Update With New Species Records

open access: yesJournal of Morphology, Volume 285, Issue 11, November 2024.
Hyperostosis is an enigmatic dimension of diversity in the anatomy of fishes. This excessive overgrowth of bone is natural in origin, occurs almost exclusively in marine fishes, is generally species‐specific, and becomes fully developed only in large individuals. We document hyperostosis in 35 families, 89 genera, and 153 species.
William F. Smith‐Vaniz   +2 more
wiley   +1 more source

Age of Jack mackerel Trachrus murphyi (Carangidae) using daily growth rings in sagittae otoliths

open access: yesGayana, 2019
Growth of Jack mackerel (Trachurus murphyi) was estimated using daily growth rings in fish collected in central-south Chile from 2004 to 2011. The von Bertalanffy growth curve at length for both sexes (n=210 individuals) is FL = 75*[1-e-0.16(t+0 ...
Lilian Cisterna, Hugo Arancibia
doaj  

Patrones de variabilidad ambiental en el mar peruano

open access: yesRevista Peruana de Biología, 2013
Se describen los escenarios ambientales y los patrones de variabilidad observados en el mar peruano a partir del análisis de información obtenida por el Instituto del Mar del Perú entre los años 1960 – 2011.
Roberto Flores   +3 more
doaj   +1 more source

Hydrophobic natural deep eutectic solvents for marine lipid extraction

open access: yesJournal of the American Oil Chemists' Society, Volume 101, Issue 3, Page 361-367, March 2024.
Abstract ‘Type V' natural deep eutectic solvents (TV NADES) are a novel class of solvent media with many potential ‘green chemistry’ applications. Here, we assess the potential of two TV NADES: menthol:carvacrol (M:C) and menthol:thymol (M:T), and a single terpenoid extraction media carvacrol (C), as media from total lipid extraction of three ...
Taylan Topal   +6 more
wiley   +1 more source

Análisis de la pesquería del jurel Trachurus murphyien el Perú

open access: yesRevista Peruana de Biología, 2013
La presencia del jurel Trachurus murphyi ha sido registrado en los desembarques de la pesca artesanal en Perú desde 1907. A partir del año 2000, las capturas de T.
Miguel Ñiquen   +3 more
doaj   +1 more source

Descripción de la pesquería artesanal de peces, en tres puertos pesqueros de la IV región, Coquimbo, Chile.

open access: yesUniciencia, 2002
Se realizó un seguimiento de la pesca artesanal de peces en las caletas de Coquimbo, Guanaqueros y Tongoy en la IV región, Chile, entre junio de 1995 y junio de 1996.
Rigoberto Víquez Portuguez   +1 more
doaj  

Preliminary results of the empirical validation of daily increments in otoliths of jack mackerel Trachurus symmetricus murphyi (Nichols, 1920) marked with oxytetracycline

open access: yesScientia Marina, 2003
The frequency of microincrement formation in sagittae otoliths of jack mackerel Trachurus symmetricus was validated using experiments on captive fish. Adult jack mackerel were injected with a dose of 100 mg of oxytetracycline/kg of fish.
Miguel Araya   +2 more
doaj   +1 more source

DETECTION OF MESOSCALE OCEANIC FEATURES USING RADARSAT-1, AVHRR AND SEAWIFS IMAGES AND THE POSSIBLE LINK WITH JACK MACKEREL (TRACHURUS MURPHYI) DISTRIBUTION IN CENTRAL CHILE

open access: yesGayana, 2004
In order to verify the ability of RADARSAT-1 images to detect mesoscale oceanic features and the possible link of these oceanographic patterns with jack mackerel (Trachurus murphyi) distribution in the waters off central Chile, a project was developed as
M.A Barbieri   +4 more
doaj  

Assessment of heavy metal concentrations in imported marine fish species consumed in Ogun state, Nigeria

open access: yesAceh Journal of Animal Science
Fish is an affordable protein source in developing countries such as Nigeria, however, human activities like mining, agriculture, and industrial discharges negatively impact these aquatic resources and their environment. Heavy metals leach into the ocean
Adetola Quddus Adebowale   +2 more
doaj   +1 more source

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