Results 21 to 30 of about 558,150 (298)

Native and non-native ornamental aquarium fishes of Bangladesh

IJOTA (Indonesian Journal of Tropical Aquatic), 2021
The study was conducted in Dhaka, Bangladesh. It was carried out for twelve (12) months from March 2018 to February 2019 to prepare a complete update checklist of native and non-native aquarium fishes of Bangladesh. During the current study, 270 varieties (230 freshwater, 36 marine, and 4 brackish water) belong to 149 species (109 freshwater 73 %, 36 ...
Ishrak Hossain, ABM Mohsin
openaire   +2 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

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

Putting pharmaceuticals into the wider context of challenges to fish populations in rivers [PDF]

, 2014
The natural range of fish species in our rivers is related to flow, elevation, temperature, local habitat and connectivity. For over 2000 years, humans have altered to varying degrees the river habitat.
Andrew C. Johnson, Halliday S, John P. Sumpter, Lappalainen A, Nutzmann G, Salomons W, Skrodenyte-Arbaciauskiene V, Wheeler A   +7 more
core   +3 more sources

The role of habitat complexity in the survival rates of migratory (native) and sedentary (non-native) species of fish larvae

Acta Scientiarum: Biological Sciences, 2023
The increasing losses of original features of many riverine environments and the consequent decline of native aquatic species are now a widely recognized problem.
Carlos Henrique Figueiredo Lacerda, Claudemir Martins Soares, Carmino Hayashi   +2 more
doaj   +1 more source

Patterns in fish assemblages in the Loire floodplain: the role of hydrological connectivity and implications for conservation [PDF]

, 2007
Hydrological connectivity is known to determine biodiversity patterns across large river floodplains, but it is often greatly altered by human activities.
Laffaille, Pascal, Lasne, Emilien, Lek, Sovan   +2 more
core   +4 more sources

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

Land use, associated eel production, and abundance of fish and crayfish in streams in Waikato, New Zealand [PDF]

, 1997
The density and biomass of fish and crayfish, and the production of eels, was compared among streams in native forest, exotic forest, and pasture. Populations were estimated by multiple-pass electroshocking at 11 sites in hill-country streams in the ...
Cairns D., Hicks B. J., Hopkins C. L.
core   +2 more sources

Aulukluki neqkat: centering care of salmon and relational research in Indigenous fisheries in the Kuskokwim River, Alaska

Arctic Science
This Indigenous-led project aims to better understand historical and contemporary ways in which Alaska Native Peoples steward salmon and the values connected to salmon stewardship.
Janessa Esquible, Avery Hoffman, Danielle Lowrey, Destiny Ropati, Jacqueline Cleveland, Mike Williams, Jonathan Samuelson, Wilson Justin, Freddie Christiansen, Jessica Black, Rachel Donkersloot, Carrie Stevens, Brooke Woods, Dehrich Chya, Courtney Carothers   +14 more
doaj   +3 more sources

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