Results 91 to 100 of about 84,465 (303)

Development and Assessment of Fluorescent‐Dyed, Preserved Invasive Grass Carp (Ctenopharyngodon idella) Eggs as Surrogates for Live Eggs in Transport and Dispersal Control Experiments

River Research and Applications, EarlyView.
ABSTRACT Invasive species such as grass carp (Ctenopharyngodon idella) pose substantial ecological threats to North American freshwater ecosystems. Understanding their early life stage behavior is critical for management efforts. From spawning to hatching, invasive carp eggs must remain suspended in the water column while drifting downstream for the ...
Henry F. Doyle, Benjamin H. Stahlschmidt, Anne M. Herndon, Vindhyawasini Prasad, Amy E. George, Jesse R. Fischer, P. Ryan Jackson, Cory D. Suski, Rafael O. Tinoco   +8 more
wiley   +1 more source

MONITORAMENTO DA QUALIDADE DA ÁGUA NO MANANCIAL DO RIO SANTO ANASTÁCIO

Colloquium Exactarum, 2011
In order to characterize spatially and temporarily the Santo Anastacio River according to limnological factors, four sampling stations were established in the main course of the river.
Paulo Ponce Arroio Junior, Renata Ribeiro de Araújo, Ariane de Souza   +2 more
doaj   +1 more source

Longitudinal transformation of nitrogen and carbon in the hyporheic zone of an N-rich stream: A combined modelling and field study [PDF]

, 2011
A combined modelling and field study approach was used to examine biogeochemical functioning of the hyporheic zone in two gravel bars in an N-rich fourth-order stream (River Hers, south-west France).
Delmotte, Sébastien, Gérino, Magali, Namour, Philippe, Peyrard, Dimitri, Sanchez-Pérez, José Miguel, Simeoni-Sauvage, Sabine, Vervier, Philippe   +6 more
core   +2 more sources

Inter‐Annual Variation in Alpha and Beta Diversity of Benthic Macroinvertebrate Communities in Agricultural Ditches

River Research and Applications, EarlyView.
ABSTRACT Ditches are essential elements of the agricultural landscape because of their role as habitat or refuge for aquatic species, especially in homogenized and intensively cultivated areas. However, data on the biodiversity associated with agricultural ditches, and its variation over time, are underrepresented in ecological research.
Michela Rappocciolo, Martina Chiorino, Elide Sgarella, Davide Solazzo, Cristina Spreafico, Alberto Doretto   +5 more
wiley   +1 more source

Fish Fauna and Fishery Evaluation of Sapanca Lake

Turkish Journal of Bioscience and Collections
Scientific data on fish communities in Türkiye’s lakes and rivers, particularly long-term studies with continuity, remain scarce. However, Sapanca Lake is an exception due to its strategic location in the Marmara Region, which has attracted significant ...
Özcan Gaygusuz, Ali Serhan Tarkan, Çiğdem Gürsoy Gaygusuz   +2 more
doaj   +1 more source

Invasion of a littoral cladoceran Sida crystallina into the pelagic zone of Christine Lake, NH and its potential impact on the phytoplankton community [PDF]

, 2011
This study evaluated the phytoplankton community and grazing influences of the zooplankton in oligotrophic Christine Lake, NH, by assessing the body size and clearance rates of the three dominant crustaceans: Sida crystallina (0.08 individuals L-1 ...
Huey, Kayla N.
core   +1 more source

Seasonal and spatial variability in plankton production and respiration in the Subtropical Gyres of the Atlantic Ocean [PDF]

, 2008
Euphotic zone plankton production (P) and respiration (R) were determined from the in vitro flux of dissolved oxygen during six latitudinal transects of the Atlantic Ocean, as part of the Atlantic Meridional Transect (AMT) programme.
Agusti, Aristegui, Behrenfeld, Blight, Carol Robinson, Doval, Duarte, Duarte, E.M.S. Woodward, Emerson, Gonzalez, González, Gregg, Gruber, Hansell, Karl, Katie Chamberlain, Longhurst, Lopez-Urrutia, Maixandeau, Marañón, Marañón, Marra, McClain, Moran, Neuer, Niki Gist, O’Reilly, Pablo Serret, Pelegri, Robinson, Robinson, Sarmiento, Serret, Serret, Serret, Serret, Teira, Welschmeyer, Williams, Williams, Williams, Woodward   +42 more
core   +1 more source

Using Fine Sediment Monitoring to Quantify Sand Loading Over Time

River Research and Applications, EarlyView.
ABSTRACT Riverine sand loading can lead to geomorphic change, impacting river processes like lateral migration and vertical aggradation or degradation. Yet many sediment monitoring programs track only fine sediment measurable as total suspended solids (TSS). Here, we assess the ability for TSS data to be used to determine sand loading.
Andrew P. Kasun, Karen B. Gran
wiley   +1 more source

Cooperative Lakes Area Monitoring Project-Lower Gar Lake, 2007 [PDF]

, 2007
Water fact sheet for Iowa Department of Natural Resources and the Geological ...

core  

Geomorphic Responses to Post‐Grazing Recovery and Stream Restoration in Semiarid Grassland Streams

River Research and Applications, EarlyView.
ABSTRACT Semiarid grassland streams are sensitive to land use, climate, extreme discharges, and internal geomorphic thresholds that drive episodic erosion. Rooted in a process‐based philosophy and commonly applied to historically wood‐rich, beaver‐modified systems, low‐tech process‐based restoration using structures is increasingly being extended to ...
Owen Richardson, Ellen Wohl
wiley   +1 more source