Results 31 to 40 of about 2,748 (214)

Non-native fish species expand tacitly but rapidly toward upstream oxbow lakes along the longitudinal gradient [PDF]

NeoBiota, 2023
The introduction of non-native fish species poses a threat to native assemblages in floodplain systems. Establishing oxbow lake-based conservation areas has been proposed as a practical approach to mitigate this threat.
Bingguo Dai, Junjiro N. Negishi, Kazuya Fujii, Md. Khorshed Alam, Zhongguan Jiang   +4 more
doaj   +3 more sources

Reproductive aspects of the dwarf cichlid Apistogramma agassizii under captive conditions

Boletim 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, Tiago Viana Costa, João Pedro Cidade Almeida, Wendell Glória dos Santos, Noédson de Jesus Beltrão Machado, Rita Brito Vieira   +5 more
doaj   +1 more source

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

Endangered 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, G York, MJ Butler, WP Johnson, J Wieringa, W Wilson   +5 more
doaj   +1 more source

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

BMC 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, Thilo Damerau, Benjamin Costas, Angela Krueger, Carsten Schulz, Sven Wuertz   +5 more
openaire   +3 more sources

Increased juvenile native fish abundance following a major flood in an Arizona river

Journal of Freshwater Ecology, 2022
Spring floods trigger spawning in many native fishes of the desert Southwest (USA), but less is known about fish community response when native fishes are rare.
Christopher J. Jenney, Zach C. Nemec, Larissa N. Lee, Scott A. Bonar   +3 more
doaj   +1 more source

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

Journal 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, Kristine N. Moody, Michael J. Blum, Peter B. McIntyre, James D. Hogan   +4 more
openaire   +3 more sources

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

Science 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, Alves, Diego Correa, Souza Figueiredo, Bruno Renaly, Poleto Antiqueira, Pablo Augusto, de Mello, Franco Teixeira, Jeppesen, Erik, Romero, Gustavo Quevedo, Mormul, Roger Paulo, Bonecker, Claudia Costa   +8 more
openaire   +3 more sources

Beluga (D. leucas), harbor porpoise (P. phocoena), and killer whale (O. orca) acoustic presence in kotzebue sound, alaska: Silence speaks volumes

Frontiers in Remote Sensing, 2022
Prior to 1984, belugas (Delphinapterus leucas) were seen in large numbers during spring and summer in Kotzebue Sound, Alaska, and provided an important subsistence resource to coastal residents.
Manuel Castellote, Robert J. Small, Kathleen M. Stafford, Alex Whiting, Kathryn J. Frost   +4 more
doaj   +1 more source

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

FEBS 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, Pilar Samperio Ventayol, Natalie Burkard, Nicolas Schlegel, Carmen Aguilar, Sina Bartfeld   +5 more
wiley   +1 more source

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

Journal 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