Results 11 to 20 of about 107,506 (214)

Fish predation pressure on zooplankton in a large northern temperate lake: impact of adult predators versus juvenile predators; pp. 356–367 [PDF]

Proceedings of the Estonian Academy of Sciences, 2018
In recent decades, a marked decrease in planktivorous fish (Osmerus eperlanus eperlanus m. spirinchus Pallas and Coregonus albula (L.)) in Lake Peipsi has stimulated research into the potential effect of fish predation on zooplankton.
Kai Ginter, Kätlin Blank, Juta Haberman, Andu Kangur, Külli Kangur   +4 more
doaj   +1 more source

Automating the Analysis of Fish Abundance Using Object Detection: Optimizing Animal Ecology With Deep Learning

Frontiers in Marine Science, 2020
Aquatic ecologists routinely count animals to provide critical information for conservation and management. Increased accessibility to underwater recording equipment such as action cameras and unmanned underwater devices has allowed footage to be ...
Ellen M. Ditria, Sebastian Lopez-Marcano, Michael Sievers, Eric L. Jinks, Christopher J. Brown, Rod M. Connolly   +5 more
doaj   +1 more source

Effects of invasive water hyacinth on fish diversity and abundance in the Lake Cluster of Pokhara Valley, Nepal

Global Ecology and Conservation, 2023
Water hyacinth (Pontederia crassipes) invasion is a growing global issue which poses a threat to aquatic life. As in the global context, the water hyacinth invasion is increasing rapidly in the lakes of Pokhara valley which is listed in Ramsar sites. Its
Rajendra Basaula, Hari Prasad Sharma, Babu Ram Paudel, Prabesh Singh Kunwar, Kumar Sapkota   +4 more
doaj   +1 more source

Spatial and Temporal Variations in Autumn Fish Assemblages in the Offshore Waters of the Yangtze Estuary

Diversity, 2023
The offshore waters of the Yangtze Estuary are an important fish habitat, and the large gradient of environmental conditions leads to different fish assemblages.
Zhaomin Chen, Cui Liang, Weiwei Xian
doaj   +1 more source

Droplet digital PCR applied to environmental DNA, a promising method to estimate fish population abundance from humic‐rich aquatic ecosystems

Environmental DNA, 2021
Measures of environmental DNA (eDNA) concentrations in water samples have the potential to be both a cost‐efficient and a nondestructive method to estimate fish population abundance.
Eric Capo, Göran Spong, Shuntaro Koizumi, Isolde Puts, Fredrik Olajos, Helena Königsson, Jan Karlsson, Pär Byström   +7 more
doaj   +1 more source

The Correlation of Coral Reef Cover and Rugosity with Coral Reef Fish Density in East Java Waters

Jurnal Ilmiah Perikanan dan Kelautan, 2020
Highlights • Coral cover, rugosity, and reef fish abundance was determined • The relationship between coral cover and rugosity and fish abundance was analyzed. • Coral cover in East Java were categorized as medium – good.
Wahyu Andy Nugraha, Faizun Mubarak, Eko Husaini, Hasyim Evendi   +3 more
doaj   +1 more source

Temporal comparison and predictors of fish species abundance and richness on undisturbed coral reef patches [PDF]

PeerJ, 2015
Large disturbances can cause rapid degradation of coral reef communities, but what baseline changes in species assemblages occur on undisturbed reefs through time?
Elena L.E.S. Wagner, Dominique G. Roche, Sandra A. Binning, Sharon Wismer, Redouan Bshary   +4 more
doaj   +2 more sources

A checklist on the status of targeted fish species in selected communities of Ondo coastal waters, Nigeria

The Proceedings of the Nigerian Academy of Science, 2021
The increased human activities resulting from industrialization and urbanization around the Ondo section of the coastal waters of the Atlantic Ocean have significantly affected the environment.
Mabel O. Ipinmoroti, Adams O. Iyiola, Babajide A. Idowu   +2 more
doaj   +1 more source

Pink salmon fishery in the Far-Eastern fishing basin in 2023: preliminary studies, forecast, interpretation of the fishing season results

Известия ТИНРО
Data of the trawl surveys for counting of pink salmon in 2022 and 2023 and results of pink salmon fishery in the main areas of the Russian Far East in 2023 are presented and the studies for understanding the state of the main pink salmon stocks and ...
E. A. Shevlyakov, A. A. Somov, V. A. Shevlyakov, A. N. Kanzeparova, N. A. Dederer, I. V. Melnikov   +5 more
doaj   +1 more source

Results of fishery for pink salmon Oncorhynchus gorbuscha in Primorye Region and hydrometeorological conditions in the Japan Sea in 2023

Известия ТИНРО
Catch and distribution of pink salmon in the Primorye fishing subzone are compared for 2000–2023. Dynamics of the spawning run of pink salmon in 2023 is considered in detail.
A. V. Lysenko, A. A. Nikitin, Т. A. Shatilina, E. I. Barabanshchikov   +3 more
doaj   +1 more source