, AND OTHERS. 1994a. Long term responses to fish-stock reduction in small shallow lakes—interpretation of 5-year results of 4 biomanipulation cases in the Netherlands and Denmark. Hydrobiologia 276: 457–466. , AND OTHERS. 1994b. The consequences of a drastic fish stock reduction in the large shallow lake Wolderwijd, The Netherlands—can we understand what happened? Hydrobiologia 276: 31–42. SCHE...

Säkylän Pyhäjärvi (SW Finland) is an example of a large and shallow lake suffering from eutrophication. During the last 20 years, the quality and general usability of water in Pyhäjärvi have shown considerable variation driven by both a variety of human activities and climate-related factors such as wet and dry years. The lake has been thoroughly studied for decades and has been the object of c...

Alternative stable states in shallow lakes are typically characterized by submerged macrophyte (clear-water state) or phytoplankton (turbid state) dominance. However, a clear-water state may occur in eutrophic lakes even when macrophytes are absent. To test whether sediment algae could cause a regime shift in the absence of macrophytes, we developed a model of benthic (periphyton) and planktoni...

This paper reports preliminary experiments in the development of our Augmented Micromanipulation System using the JHU “Steady Hand” cooperative robot system to augment single cell manipulation tasks. The need for robotic augmentation of biomanipulatuon tasks is discussed. The JHU "Steady-Hand" robot configuration for cell manipulation is reported. Augmentation strategies for stable cooperative ...

Abstract Preventive and curative intervention become an imperative to encounter the recent dilemmas of lakes its ecosystem, eutrophication, external contaminants load internal hydrological cycle disruption, drought or flood as a result global warning are some these which mainly caused anthropogenic activities. At present, mechanical chemical treatment approaches most popular applied techniques ...

As an important embodiment of biomanipulation, injection of foreign materials (e.g., DNA, RNAi, sperm, protein, and drug compounds) into individual cells has significant implications in genetics, transgenics, assisted reproduction, and drug discovery. This paper presents a microrobotic system for fully automated zebrafish embryo injection, which overcomes the problems inherent in manual operati...