Results 81 to 90 of about 7,330 (253)

Comparison of bioassessment results and costs between preserved and unpreserved macroinvertebrate samples from streams

, 2011
The choice to use or not use a preservative before sorting macroinvertebrate samples (i.e., dead specimens vs. living specimens) is based on studies not solely focused on the effects of preservation.
Keizer-Vlek, H.E., Goedhart, P.W., Verdonschot, P.F.M.   +2 more
core   +1 more source

Addressing false negatives and positives in eDNA studies

Methods in Ecology and Evolution, EarlyView.
Abstract Environmental DNA (eDNA) has revolutionized the study of ecology and biodiversity, enabling species detection without direct observation in the environment. However, the implications of detection errors, specifically false positives and false negatives, are poorly reported in eDNA studies, significantly hindering our understanding of the ...
Amal Bajaffer, Lutfi Afiq‐Rosli, Kah Kheng Lim, Sofia Frappi, Michelle‐Nicole Havlik, Diego E. Rivera Rosas, Elisa Laiolo, Carlos Angulo‐Preckler, Carlos M. Duarte   +8 more
wiley   +1 more source

Disentangling the Drivers of a Piscivorous Intra‐Annual Cohort and the Contributions of Three Cohorts to Early‐Year Class Strength in Pikeperch (Sander lucioperca)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Using pikeperch (Sander lucioperca) as a model species, we investigated the factors influencing fluctuations in the abundance of piscivorous intra‐annual cohorts and assessed the role of three distinct cohorts: extremely small (ES), ordinary (or mid‐sized) fingerlings, and piscivorous in shaping year‐class strength.
Million Tesfaye, Tomáš Jůza, Marek Šmejkal, Katerina Soukalová, Daniel Bartoň, Petr Blabolil, Martin Čech, Josef Hejzlar, Marie Prchalová, Milan Muška, Michal Tušer, Luboš Kočvara, Zuzana Sajdlová, Vladislav Draštík, Carlos Martinez, Karlos Ribeiro de Moraes, Milan Říha, Mojmír Vašek, Radka Symonová, Marek Brabec, Jan Kubečka, Allan T. Souza   +21 more
wiley   +1 more source

Benthic macroinvertebrates in Italian rice fields

Journal of Limnology, 2013
Rice fields can be considered man-managed temporary wetlands. Five rice fields handled with different management strategies, their adjacent channels, and a spring were analysed by their benthic macroinvertebrate community to i) evaluate the role of rice agroe- cosystem in biodiversity conservation; ii) find indicator species which can be used to ...
D. Lupi, A. Rocco, B. Rossaro
openaire   +3 more sources

Feeding ecology of an Amazonian electric knifefish under altered flood‐pulse dynamics caused by hydroelectric damming

Journal of Fish Biology, EarlyView.
Abstract This study evaluated the effects of the controlled flood pulse on diet composition, trophic niche breadth and feeding intensity of Archolaemus janeae, an electric knifefish species with a restricted distribution in the Amazon Basin. Monthly samples were collected from December 2020 to November 2021 in the Volta Grande stretch of the Xingu ...
Ana F. V. N. M. Costa, Antonio A. Jardim Jr, Erival G. Prata, Rafael R. Gusmão, Angelo J. Faro Júnior, Alan S. Fonseca, Danielly T. Hashiguti, Luciano F. A. Montag, Tiago M. S. Freitas   +8 more
wiley   +1 more source

Abundances of stream benthic macroinvertebrates during a 6-year monitoring period of a glacier-fed stream in South Tyrol, Italy

, 2019
Stream benthic macroinvertebrates have been collected for a period of 6 consecutive years (2010-2015, from April to September, during the glacial melting) along a longitudinal transect of the Saldur stream, a near pristine glacier-fed stream located in ...
Bottarin, Roberta, Scotti, Alberto, Alberto Scotti (7884209), Roberta Bottarin (7884206)   +3 more
core   +1 more source

Macroinvertebrates as Indicators of Water Quality in Thomas Dam, Dambatta, Kano State, Nigeria

UMYU Journal of Microbiology Research, 2017
A study on the water quality assessment using benthic macroinvertebrates in Thomas Dam, Dambatta, Kano State was carried out fortnightly for a period of four months (January–April, 2016).
Ibrahim, S., Nafi’u, S. A.
doaj   +1 more source

Non‐native pink salmon Oncorhynchus gorbuscha carcasses benefit native benthic macroinvertebrates

Journal of Fish Biology, EarlyView.
Abstract The invasion of the North Atlantic by pink salmon Oncorhynchus gorbuscha has raised concerns regarding their impact on coastal rivers. Although the influence of marine‐derived nutrients from returning adult O. gorbuscha on rivers in their native range has received much attention, the ecological consequences of invasive O.
Hui Wei, Gordon H. Copp, Rasmus B. Lauridsen, Tea Bašić, Phil I. Davison, John F. Murphy, James L. Pretty, Michał E. Skóra, Gabriela Zemelka, John Iwan Jones   +9 more
wiley   +1 more source

Assemblage and distribution of Benthic Macroinvertebrates at upper and lower reach of Lata Janggut, Jeli, Kelantan [PDF]

, 2020
This study was carried out to determine the composition and distribution of Benthic Macroinvertebrates at three station in Lata Janggut, Jeli. Freshwater benthic macro invertebrate are diverse in their sensitivities to habitat changes.
Nurul Natasha Izzati Mat Nazari,
core  

Points vs. passes: A comparison between electric fishing techniques for sampling fish populations in upland headwater streams

Journal of Fish Biology, EarlyView.
Abstract Point‐abundance sampling by electric fishing (PASE) was compared with single‐pass (DF1) and triple‐pass depletion sampling (DF3) electric fishing on the same reaches of four headwater streams sampled over multiple years in the Ribble catchment, UK. Juvenile salmonids, mostly brown trout Salmo trutta with some Atlantic salmon S.
Reagan H. Pearce, Martin R. Perrow, Mark L. Tomlinson, Kirsty A. Turner   +3 more
wiley   +1 more source