Results 81 to 90 of about 18,575 (177)

Fish and macroinvertebrates in lowland drainage canals with and without grass carp [PDF]

open access: yes, 2006
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

Into the Wild: Farm‐Derived Energy and Nutrients Enter Marine Food Webs With Carrying Capacity Implications for Aquaculture Management

open access: yesReviews in Aquaculture, Volume 18, Issue 3, June 2026.
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]

open access: yes, 1983
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

open access: yesEcology and Evolution, Volume 16, Issue 5, May 2026.
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

Phosphorus loading and carp disturbance synergistically promote dominance of free-floating macrophytes over submerged plant competitors

open access: yesEcological Indicators
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

Omnivorous shrimp Neocaridina denticulata sinensis enhances the growth of submerged macrophyte Vallisneria denseserrulata

open access: yesKnowledge and Management of Aquatic Ecosystems, 2019
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)

open access: yesLimnology and Oceanography Letters, Volume 11, Issue 3, May 2026.
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

Alternative stable states: Evidence from natural ecosystems and implications for ecological restoration

open access: yesEcological Solutions and Evidence, Volume 7, Issue 2, April/June 2026.
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]

open access: yes, 2002
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]

open access: yes, 2015
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

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