Results 21 to 30 of about 24,876 (221)

Interim progress report on a study of the utility of data obtainable from otoliths to management of Humpback Chub (Gila cypha) in the Grand Canyon [PDF]

open access: yes, 1993
Daily growth increments of otoliths of fishes have been useful in many fishery applications since they have been demonstrated to provide a precise method of ageing individuals and reconstructing individual growth and, possibly, movement or habitat ...
Hendrickson, Dean A.
core   +1 more source

qPCR detection of Sturgeon chub (Macrhybopsis gelida) DNA in environmental samples.

open access: yesPLoS ONE, 2018
The Sturgeon chub (Macrhybopsis gelida) is a cyprinid fish native to the Missouri and Mississippi River basins of the U.S. Suspected long-term declines in the size of its distribution have prompted a review of its conservation status by the U.S. Fish and
Daniel H Mason   +6 more
doaj   +1 more source

Reproductive farming technology in Japanese eel and chub mackerel

open access: yesAquaculture and Fisheries, 2022
Japanese eel (Anguilla japonica) and chub mackerel (Scomber japonicus) are commercially valuable species in Asian aquaculture. The reduction in eel and chub mackerel resources has been a serious problem in recent years that should be addressed by ...
Hiroshi Miyanishi, Naoki Nagano
doaj   +1 more source

Findings From the Pearl River Basin: Dissolved Oxygen Dominates Functional Trait Filtering and Diversity Patterns in Urban Rivers. [PDF]

open access: yesEcol Evol
Urbanization reshapes fish communities via environmental filtering. Surveying 44 sites across an urban (Huadi) and a relatively natural (Zengjiang) river in the Pearl River Basin (2024), we linked environmental variables to fish functional traits using RLQ and SEM, finding that dissolved oxygen is the dominant filter in urban reaches—selecting low ...
Huang J   +9 more
europepmc   +2 more sources

Organosomatic indices and leukocyte formula of chub (Squalius cephalus L) from the Suturlija River [PDF]

open access: yesAgroznanje, 2020
Coefficients of organs, along with haematological characteristics, represent an important means of monitoring the health and condition of fish. Organosomatic indices show the state of organ systems and individual organs. They manifest as changes in size,
Bakrač Azra   +3 more
doaj   +1 more source

Invasive crayfish impacts on native fish diet and growth vary with fish life stage [PDF]

open access: yes, 2016
Assessing the impacts of invasive organisms is a major challenge in ecology. Some widespread invasive species such as crayfish are potential competitors and reciprocal predators of ecologically and recreationally important native fish species.
England, Judy   +3 more
core   +1 more source

Influences of environmental and chemical parameters on the spatial growth patterns of four riverine cyprinid fishes

open access: yesKnowledge and Management of Aquatic Ecosystems, 2015
Understanding intraspecific variability in fish somatic growth rates is important as growth is a key life history trait that plays a fundamental role in many biological and ecological processes.
Liu C., Chen Y., Britton J.R.
doaj   +1 more source

Rapid response achieves eradication – chub in Ireland [PDF]

open access: yesManagement of Biological Invasions, 2018
Rapid reaction to the initial discovery of invasive alien species (IAS) is key to eradication, but this is often frustrated by lack of resources and coordinated actions. However, examples of successful eradications may encourage and empower others to follow.
Caffrey, Joe   +3 more
openaire   +3 more sources

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

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  

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