Results 81 to 90 of about 4,571,414 (325)

Distribution, ecology and conservation of the Potamogeton alpinus Balb. (Potamogetonaceae Bercht. & J. Presl) on the southern border of range in European Russia

Трансформация экосистем
Potamogeton alpinus Balb. is a Holarctic arctoboreal aquatic plant species. In European Russia, it is a common species in the tundra and taiga. We have found that the southern border of the main part of the range of P.
E.V. Ershkova, I.G. Esina, O.G. Grishutkin, A.V. Chkalov   +3 more
doaj   +1 more source

Global Change Sharpens the Double-Edged Sword Effect of Aquatic Alien Plants in China and Beyond

Frontiers in Plant Science, 2019
Many alien aquatic plants are deliberately introduced because they have economic, ornamental, or environmental values; however, they may also negatively affect aquatic ecosystems, by blocking rivers, restricting aquatic animals and plants by decreasing ...
Hao Wu, Jianqing Ding
doaj   +1 more source

Soft Actuators Integrated with Control and Power Units: Approaching Wireless Autonomous Soft Robots

Advanced Robotics Research, EarlyView.
Soft robots exhibit significant development potential in various applications. However, there are still key technical challenges regarding material improvement, structure design and components integration. This review focuses on the development and challenge of soft actuators, power components, and control components in untethered intelligent soft ...
Renwu Shi, Feifei Pan, Xiaobin Ji
wiley   +1 more source

Fish and macroinvertebrates in lowland drainage canals with and without grass carp

, 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, Hicks, Brendan J., Wells, R.D.S.   +2 more
core  

Multidirectional Motion Strategy of Miniature Water Surface Robot Actuated by Single Exciter

Advanced Robotics Research, EarlyView.
A novel multidirectional motion strategy on the water surface based on a single exciter is proposed, and a single‐exciter single‐plate module is developed for actuation. The driving forces generation mechanism of the module is revealed from the perspective of the asymmetric surface wave field.
Haoxuan He, Dehong Wang, Jing Li, Shijing Zhang, Yingxiang Liu   +4 more
wiley   +1 more source

Long-term succession of aquatic plants reconstructed from palynological records in a shallow freshwater lake.

Science of the Total Environment, 2018
Aquatic plants in shallow freshwater lakes play a key role in stabilizing ecological function and providing valuable ecosystem services, yet they are severely degraded worldwide. An improved understanding of long-term aquatic plant succession is critical
Yawen Ge, Ke Zhang, Xiangdong Yang
semanticscholar   +1 more source

The use of aquatic plants as feed for Tilapia nilotica in floating cages

, 1979
Three kinds of aquatic plants, namely, Hydrilla verticillata, Lemna minor , and Chara sp. were used as feed for the T. nilotica reared in floating cages at three levels of stocking densities: 5, 15, and 45 fishes per cage.
Rifai, Sjamsudin Adang
core  

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Riparian response guilds shift in response to flow alteration in montane streams of the southern Rocky Mountains

Ecosphere, 2020
The southern Rocky Mountains serve as the headwaters of the West, providing water to agriculture, industry, recreation, and millions of people in 17 western states.
Julian A. Scott, David M. Merritt
doaj   +1 more source

Herbicide risk assessment for non-target aquatic plants: sulfosulfuron - a case study

, 2003
Herbicides entering the aquatic environment by spray drift, run‐off and leaching to field drains may cause adverse effects on non‐target aquatic vegetation.
Francesca G Tencalla, Giovanna Meregalli, Philip Brain, Meregalli, G., Joanna Davies, Jonathan R Newman, Honegger, J. L., Newman, J. R., Hannah F Pitchford, Tencalla, F. G., Joy L Honegger, Pitchford, H. F., Davies, J., Brain, P.   +13 more
core   +1 more source