Results 31 to 40 of about 16,816 (210)

Parasites and non-fish predators of tilapia with particular reference to the sustainable management of fisheries of Lake Kainji Nigeria [PDF]

, 2001
The fisheries of Lake Kainji, Nigeria, experienced a boom year following impoundment, then decline post impoundment and now is in a period of stabilisation of the fish resources. Several reasons have been advanced on factors responsible for these changes,
Obiekezie, A., Okaeme, A.N., Olufemi, B.E.   +2 more
core  

Persisting at the Edge of Ecological Collapse: The Impact of Urbanization on Fish and Amphibian Communities From Lake Xochimilco

Environmental DNA, Volume 7, Issue 4, July/August 2025.
ABSTRACT Freshwater ecosystems are globally threatened by habitat loss, pollution, and invasive species, all of which are particularly acute in urban areas. To assess the impacts of urbanization on freshwater biodiversity—specifically the effects of alien species on native primary aquatic vertebrates—we investigated the World Heritage Site, Lake ...
Alejandro Maeda‐Obregon, Elizabeth L. Clare, Luis Zambrano, Omar Domínguez‐Domínguez, Gavin J. Horsbrough, Paul Parsons, Deborah A. Dawson, Benjamin Tapley, Christopher J. Michaels, Víctor H. Reynoso, Jeffrey W. Streicher, David J. Murrell, Julia J. Day   +12 more
wiley   +1 more source

Assessment of Fish Biodiversity in Oni River, Ogun State, Nigeria [PDF]

International Journal of Agricultural Management and Development, 2011
For the purpose of sustainable exploitation of the fishery resourcesof Oni River, Ogun State, Nigeria, the fish biodiversity assessment was carried out. This was conducted by enumerating and identifying fish species composition, measuring the fish length,
Obe Bernardine Wuraola, Jenyo-Oni Adetola   +1 more
doaj  

Africa: the FBA connection [PDF]

, 1986
Since its inception in the 1930's the Freshwater Biological Association at Windermere, England has been involved in research on African lakes and rivers.
Fryer, G., Talling, J.F.
core  

Structure and diversity of fish communities in man-made ponds of the Niger Delta (southern Nigeria) [PDF]

, 2018
1. A survey of eight local earthen hand-dug ponds located within the freshwater swamps of a Niger Delta area (southern Nigeria) was conducted over a period of 3 months.
Ajong, Stephanie Nwanefulu, Akani, Godfrey c, Amadi, Nioking, Dendi, Daniele, Ebere, Nwabueze, Lazarus, O.T., Luiselli, Luca, Osuamkpe, A, Pacini, Nic, Ugbomeh, Adaobi P, Uyi, Harrison S., Wala, Chimela   +11 more
core   +2 more sources

Illuminating the Dark: Using eDNA Metabarcoding to Study the Unique Ichthyofauna of the Furnas Formation Sinkholes

Environmental DNA, Volume 7, Issue 4, July/August 2025.
Using eDNA metabarcoding, we assessed fish diversity in isolated sinkholes in southern Brazil, uncovering signs of local extinction and species persistence. This approach offers a non‐invasive tool for biodiversity assessment and informs conservation efforts in unique karst environments.
Luz E. De la Ossa‐Guerra, Daniel M. Limeira, Roger H. Dalcin, Heron O. Hilário, Daniel C. Carvalho, Roberto F. Artoni   +5 more
wiley   +1 more source

CLOFFAR - update 3 - supplement to Checklist of the Freshwater Fishes of Argentina [PDF]

, 2017
In May 2016 we have published the second update to CLOFFAR and in these few months a total of 22 changes have summed up. The total number of fishes known from the freshwaters of Argentina has increased to 538, caused by one new Hoplias and 13 first ...
Koerber, Stefan, Litz, Thomas O., Mirande, Juan Marcos   +2 more
core  

Genomic islands of speciation separate cichlid ecomorphs in an East African crater lake [PDF]

, 2010
The genomic causes and effects of divergent ecological selection during speciation are still poorly understood. Here, we report the discovery and detailed characterization of early-stage adaptive divergence of two cichlid fish ecomorphs in a small (700m ...
Malinsky, Milan, Challis, Richard J, Tyers, Alexandra M, Schiffels, Stephan, Terau, Yohey, Ngatunga, Benjamin P, Miska, Eric, Durbin, Richard, Genner, Martin J, Turner, George F   +9 more
core   +1 more source

Spatiotemporal eDNA Monitoring of Marine Biodiversity in a Hyperurbanised Coastal Environment

Environmental DNA, Volume 7, Issue 4, July/August 2025.
Using environmental DNA and a metabarcoding approach, we amplified and sequenced the cytochrome oxidase subunit I (COI) gene for invertebrates and the 16S rRNA gene for vertebrates. Our spatiotemporal analyses over a year and across four sites in Singapore revealed distinct communities between sites and timepoints for both the COI and 16S rRNA assays ...
Zhi Ting Yip, Zheng Bin Randolph Quek, Danwei Huang   +2 more
wiley   +1 more source

Fish, Marmelos Conservation Area (BX044), Madeira River basin, states of Amazonas and Rondônia, Brazil. [PDF]

Check List, 2007
The present study provides a species list of fish from the Marmelos River Area – BX044 in the states ofAmazonas and Rondônia in northern Brazil. During a Rapid Ecological Assessment (REA) performed in October andNovember of 2003, 133 fish species from ...
Camargo, M., Giarrizzo, T.
doaj   +4 more sources