Results 81 to 90 of about 18,575 (177)
Fish and macroinvertebrates in lowland drainage canals with and without grass carp [PDF]
Diploid grass carp (Ctenopharyngodon idella L.) were introduced to a lowland Waikato drainage canal at an initial density of 40-80 kg ha -1(83-167 fish ha -1) to control aquatic macrophytes and improve water flow.
Bannon, Henry James +2 more
core +1 more source
ABSTRACT Marine aquaculture is expanding globally, yet its interactions with surrounding ecosystems remain complex and insufficiently understood. This study reviews the fluxes of energy and nutrients from three major aquaculture systems: finfish cages, suspended bivalves, and seaweed farms and considers their implications for ecosystem functioning and ...
Myriam D. Callier +11 more
wiley +1 more source
Bottom sediments of Lake Rotoma [PDF]
Lake Rotoma is a deep (70-80 m), oligotrophic, warm monomictic lake of volcanic origin with insignificant stream inflow and no clearly defined outflow. For at least 60 years up to 1972 the lake level fluctuated markedly about an overall rising trend of ...
_____ +46 more
core +2 more sources
Data on the Distribution and Ecology of Pistia stratiotes L. (Araceae) in Hungary
Free‐floating macrophyte invasions pose an increasing threat to lowland freshwater systems in Central Europe, particularly in thermally influenced canal networks. This study provides the first detailed assessment of the distribution, habitat conditions, dispersal, and reproduction of Pistia stratiotes along the Élővíz Canal in southeastern Hungary ...
Szabolcs Kis, Attila Molnár V.
wiley +1 more source
Freshwater ecosystems increasingly face free-floating macrophyte invasions, which suppress submerged vegetation and phytoplankton, threatening biodiversity and ecosystem functions.
Rui Zhou, Dong Luo, Lei Li
doaj +1 more source
Lake eutrophication often causes declines and even losses of submerged macrophytes through the shading effects of increased periphyton and phytoplankton.
Ye Jialiang +4 more
doaj +1 more source
Altered greenhouse gas emissions in shallow lakes invaded by common carp (Cyprinus carpio)
Abstract Species invasions are among the most important environmental problems facing freshwater ecosystems this century, contributing to biodiversity loss and changes in ecosystem function. Freshwater lakes are an important component of the global carbon cycle and a key source of atmospheric greenhouse gases, yet the consequences of species invasions ...
Joseph S. Rabaey +3 more
wiley +1 more source
Ecosystems can occupy alternative stable states, maintained by positive feedbacks and critical thresholds. Recovery is often nonlinear, making simple driver reversal insufficient. Effective restoration should target critical thresholds, disrupt degradation‐reinforcing feedbacks and strengthen recovery‐promoting feedbacks.
Wanxiao Sha +7 more
wiley +1 more source
Species richness and beta-diversity of aquatic macrophytes assemblages in three floodplain tropical lagoons: evaluating the effects of sampling size and depth gradients [PDF]
Using aquatic macrophyte data gathered in three lagoons of the Paraná River floodplain we showed a strong effect of sample size on species richness. Incidence-based species richness estimators (Chao 2, jackknife 1, jackknife 2, incidence-based coverage ...
Bini, L., Souza, D., Thomaz, S.
core
Relative impacts of morphological alteration to shorelines and eutrophication on littoral macroinvertebrates in Mediterranean lakes [PDF]
Development of effective methods for assessing the ecological status of lakes based on littoral benthic fauna has been hampered by the lack of quantitative data on the relative impacts of key pressures on the benthic community.
BAZZANTI, Marcello +8 more
core +1 more source

