Results 41 to 50 of about 82,358 (306)

Occupancy of four endangered aquatic species on Bitter Lake National Wildlife Refuge, New Mexico, USA, using environmental DNA

open access: yesEndangered Species Research
Environmental DNA (eDNA) has the potential to play an important role in surveys for rare and endangered aquatic species. eDNA sampling is non-invasive, and for small cryptic species that are difficult to survey, it may offer a viable, more efficient, and
JS Beauchamp   +5 more
doaj   +1 more source

Isolation and characterization of native probiotics for fish farming [PDF]

open access: yesBMC Microbiology, 2018
Innovations in fish nutrition act as drivers for the sustainable development of the rapidly expanding aquaculture sector. Probiotic dietary supplements are able to improve health and nutrition of livestock, but respective bacteria have mainly been isolated from terrestrial, warm-blooded hosts, limiting an efficient application in fish.
Konrad M. Wanka   +5 more
openaire   +3 more sources

Distribution and abundance of fish and crayfish in a Waikato stream in relation to basin area

open access: yes, 2003
The aim of this study was to relate the longitudinal distribution of fish and crayfish to increasing basin area and physical site characteristics in the Mangaotama Stream, Waikato region, North Island, New Zealand.
Hicks, Brendan J., Brendan J. Hicks
core   +1 more source

Reproductive aspects of the dwarf cichlid Apistogramma agassizii under captive conditions

open access: yesBoletim do Instituto de Pesca, 2022
Apistogramma agassizii is a native fish from the Amazon basin, which is of great interest for fishkeeping and is supplied to the retail trade from extractivism.
Hélio Jacobson da Silva   +5 more
doaj   +1 more source

Non-native fishes homogenize native fish communities and reduce ecosystem multifunctionality in tropical lakes over 16 years

open access: yesScience of The Total Environment, 2021
Non-native species are considered a major global threat to biodiversity, and their expansion to new ecosystems has recently increased. However, the effect of non-native species on ecosystem functioning is poorly understood, especially in hyperdiverse tropical ecosystems of which long-term studies are scarce.
Moi, Dieison Andre   +8 more
openaire   +3 more sources

Prioritization of fish communities with a view to conservation and restoration on a large scale European basin, the Loire (France) [PDF]

open access: yes, 2008
The hierarchical organization of important sites for the conservation or the restoration of fish communities is a great challenge for managers, especially because of financial or time constraints.
Vigneron, Thibault   +6 more
core   +1 more source

To be, or not to be, a non-native freshwater fish?

open access: yesJournal of Applied Ichthyology, 2005
We examine the evolving concept of what constitutes a nonnative (or alien) freshwater fish. In an attempt to distinguish between biogeographical and socio-political perspectives, we review the patterns in the introduction and dispersal of nonnative fishes in Europe and North America, and especially the recent expansion of Ponto-Caspian gobies in Europe.
G. H. Copp, BIANCO, PIER GIORGIO
openaire   +4 more sources

Migratory flexibility in native Hawai'ian amphidromous fishes [PDF]

open access: yesJournal of Fish Biology, 2019
AbstractWe assessed the prevalence of life history variation across four of the five native amphidromous Hawai'ian gobioids to determine whether some or all exhibit evidence of partial migration. Analysis of otolith Sr.: Ca concentrations affirmed that all are amphidromous and revealed evidence of partial migration in three of the four species.
Heidi Heim‐Ballew   +4 more
openaire   +3 more sources

Increased Risk of Sarcomas in Children With Congenital Anomalies: Findings From the Genetic Overlap Between Anomalies and Cancer in Kids (GOBACK) Registry Linkage Study

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Pediatric sarcomas are a heterogeneous group of tumors that contribute disproportionately to cancer mortality in children. Although congenital anomalies are among the strongest known risk factors for childhood cancer, the risk of specific sarcoma subtypes among affected individuals has not yet been thoroughly evaluated. Procedure We
Russ Wolters   +17 more
wiley   +1 more source

Enteropathogenic E. coli shows delayed attachment and host response in human jejunum organoid‐derived monolayers compared to HeLa cells

open access: yesFEBS Letters, EarlyView.
Enteropathogenic E. coli (EPEC) infects the human intestinal epithelium, resulting in severe illness and diarrhoea. In this study, we compared the infection of cancer‐derived cell lines with human organoid‐derived models of the small intestine. We observed a delayed in attachment, inflammation and cell death on primary cells, indicating that host ...
Mastura Neyazi   +5 more
wiley   +1 more source

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