Results 91 to 100 of about 17,296 (265)

Using Eye Lens Stable Isotopes to Identify the Rearing Origin of Fall Age‐0 Walleye (Sander vitreus)

Fisheries Management and Ecology, EarlyView.
ABSTRACT Isotope values in fish eye lenses may be useful in differentiating rearing origins. We compared eye lens isotopic values of fall fingerling age‐0 walleye (Sander vitreus) reared in a hatchery pond, a recirculating aquaculture system (RAS), and a natural lake. Using 10 fish per rearing source, we delaminated layers from one eye lens per fish to
Justin M. Sturtz, Benjamin J. Schall, Matthew J. Ward, Cody E. Treft, Steven R. Chipps, Christopher A. Cheek   +5 more
wiley   +1 more source

INVERTEBRATE AVAILABILITY FOR WILD TURKEY POULTS IN THE SOUTHERN APPALACHIANS

Wildlife Society Bulletin, 2000
: We determined macroinvertebrate availability for wild turkey (Meleagris gallopavo) poults in western North Carolina in relation to vegetation and topography.
Craig A. Harper, Jody K. Knox, David C. Guynn Jr., J. Rickie Davis, James G. Williams   +4 more
doaj   +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

Physical environment, nutrient budget, and ecology of Lake Moana-nui, Tokoroa

, 2006
This report is based on fortnightly monitoring data collected over a 14 month period from November 2000 to January 2002 and a survey of the lake bathymetry and vegetation distribution.
Miller, Dean C., Hicks, Brendan J.
core  

French freshwater macroinvertebrates surveys series

, 2020
This dataset contains the observed abundances of different freshwater macroinvertebrates taxa in French streams and rivers, extracted from the national surveys, with IBGN protocol (sampling_method).
Ferreol, Martial, Floury, Mathieu
core   +1 more source

The effects of Bacillus thuringiensis var. israelensis (Bti) on tropical stream food webs vary between two consecutive dry seasons

Insect Conservation and Diversity, EarlyView.
Bti application altered tropical stream food‐web structure through changes in macroinvertebrate functional feeding groups. Collector‐filterers and predators showed context‐dependent responses, with clearer direct and indirect effects detected in 2016, the year with higher rainfall.
Tatiana N. Docile, Ronaldo Figueiró, Aliny P. F. Pires, Bruno E. Soares, Jorge L. Nessimian   +4 more
wiley   +1 more source

Spatial distribution of macroinvertebrates in Xiangxi River

, 2008
An investigation wits made from July 2005 to June 2006 to understand the spatial distribution of macroinvertebrates in Xiangxi River, the largest tributary in Hubei portion of Three Gorges Reservoir.
Fu Xiao-cheng, Jiang Wan-xiang, Li Feng-qing, Tang Tao, Liu Rui-qiu, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol and Biotechnol, Wuhan 430072, Peoples R China, Wu Nai-cheng, Cai Qing-hua (qhcai@ihb.ac.cn)   +7 more
core  

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

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

Reproductive plasticity and environmental tolerance of invasive African catfish (Clarias gariepinus) in a tropical Brazilian river

Journal of Fish Biology, EarlyView.
Abstract Invasive alien species (IAS) pose a significant threat to biodiversity, particularly when endowed with high ecological and reproductive plasticity. The African catfish, Clarias gariepinus, is one such species, widely recognized for its ability to colonize and establish in diverse tropical ecosystems.
Michelle Torres Dumith, Alejandra Filippo Gonzalez Neves dos Santos   +1 more
wiley   +1 more source