Results 21 to 30 of about 2,385 (180)

Decoding the News Media Diet of Disinformation Spreaders

open access: yesEntropy
In the digital era, information consumption is predominantly channeled through online news media and disseminated on social media platforms. Understanding the complex dynamics of the news media environment and users’ habits within the digital ecosystem ...
Anna Bertani   +2 more
doaj   +1 more source

The correlation between fish mercury liver/muscle ratio and high and low levels of mercury contamination in Czech localities

open access: yesInternational Journal of Electrochemical Science, 2013
The aim of our study was to divide selective Czech locations into sites that were either heavily or lightly contaminated with mercury on the basis of results of the total mercury liver/muscle ratio in fish.
Kamila Kruzikovd   +5 more
doaj   +1 more source

ICHTHYOFAUNA OF A PART OF SAVA RIVER [PDF]

open access: yesCroatian Journal of Fisheries, 1997
Based on a personal research from 1991-1994 the ichthyofauna structure of the part of the Sava river upstream from Zagreb on the section from Podsused to Gradna mouth is presented. The data are being compared with the results of the research of this part
Dobrila Habeković   +3 more
doaj  

Assessing the Predatory Effects of Invasive Brown Trout on Native Rio Grande Sucker and Rio Grande Chub in Mountain Streams of New Mexico, USA

open access: yesConservation, 2022
Invasive predators pose a critical threat to native taxa. Body size plays an important role in mediating the interactions of predator and prey. For piscivorous fishes, increased predator body size can be accompanied by the selection of increasingly ...
Jansen Ivie   +2 more
doaj   +1 more source

Development and Improvement of Habitat Suitability Criteria for Instream Habitat Assessments Conducted in Support of Environmental Flows in Florida

open access: yesRiver Research and Applications, EarlyView.
ABSTRACT Florida's regulatory framework requires the establishment of minimum flows to protect aquatic ecosystems and water resources from significant harm. One of the primary methods used to evaluate significant harm is assessment of instream habitat, which relies on Habitat Suitability Criteria (HSC) curves that relate flow regimes and habitat ...
Eric J. Nagid, Kym Rouse Holzwart
wiley   +1 more source

Cell composition of the head kidney of European chub (Squalius cephalus L. )

open access: yesArchives of Polish Fisheries, 2014
The aim of the present study was to perform quantitative and qualitative evaluations of developing blood cells in the head kidney of European chub, Squalius cephalus (L.).
Kondera Elżbieta
doaj   +1 more source

Biological invasions disrupt the relationship between size spectrum and trophic interactions in freshwater fish communities

open access: yesJournal of Animal Ecology, EarlyView.
Our study shows that non‐native species alter the relationship between the size‐spectrum slope and the predator–prey mass ratio (PPMR) in freshwater fish communities by occupying distinct trophic niches. Abstract The size spectrum, which describes the relationship between abundance (or biomass) and body size, is an ataxic approach that can provide ...
Valentin Marin   +3 more
wiley   +1 more source

Growth Heterogeneity of Chub Mackerel (Scomber japonicus) in the Northwest Pacific Ocean

open access: yesJournal of Marine Science and Engineering, 2022
Chub mackerel (Scomber japonicus) is a pelagic fish widely distributed in temperate and subtropical zones throughout the Indian and Pacific Oceans and is commercially exploited, particularly in the North Pacific.
Kai Cai   +4 more
doaj   +1 more source

Ecological scale mediates nonlinear relationships of animal nutrient excretion with dissolved organic matter

open access: yesJournal of Animal Ecology, EarlyView.
We show that nutrient excretion by vertebrates and invertebrates varies nonlinearly with dissolved organic matter concentration and composition and by taxonomic rank, with stronger patterns at the individual compared to the community level. Our findings highlight the importance of examining animal‐mediated nutrient cycling across taxa and ecological ...
Sandra Klemet‐N'Guessan   +3 more
wiley   +1 more source

Studying the Relationship Between Morphological Characteristics and Ecological Niche Overlap of the Namak Chub (Squalius namak) In the Jajroud River [PDF]

open access: yesمحیط زیست و توسعه فرابخشی
Introduction: The degree of overlap in ecological niches can indicate the extent of resource sharing and potential interspecific competition. The intensity or effects of resource sharing and competition may also be partially related to species abundance,
Hamed Shabanloo   +2 more
doaj   +1 more source

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