The investigations have been done in Krstonosica shaft at 3 points, in February, May and October 1995, and in January and April 1996. They included algae, Rotatoria, Copepoda, Cladocera, and Hydracarina. The species from divisio Bacillariophyta were presented most among the algal species, with 56 species, then from divisio Chlorophyta, with 26 taxons, Euglenophyta 11, Cyanobacteria 9, Pyrrophyta 3, Xanthophyta 2 and Chrysophyta 1. Among animal groups the highest number belonged to the Rotatoria group, 111 taxons have been determined. The highest number was found during autumn season (86), then in spring (73), and only 14 species in winter. The species that mostly prevailed were phytophyl species. The Cladocera group was present with 18 taxons. The phytophyl species from overgrown plants again prevailed. The Copepoda group was present with 10 species and the phytophyl species were prevailed. According to saprobiological characteristics the greatest number belongs to beta-mezosaprobionts, then oligosaprobionts. A small number of species indicates to the eutrophication process and organic pollution of water.

Sri Lanka is positioned as an important hub for international shipping. The recent naval accidents of MT New Diamond (in 2020) and MV X-Press Pearl (in 2021) suggest that the country is at risk for future maritime environmental disasters. However, Sri Lanka still has no adequate planning and regulation at the national policy level. Therefore, the objective of the current study is to formulate a national policy and contingency plan to augment maritime safety. This paper proposed the framework for the integrated coastal zone management in Sri Lanka, based on the national acts and laws, existing regulations, and analysis of international experiences. The integrated coastal zone management framework is proposed into four hierarchical levels. The proposed framework establishes a permanent coordination and management system for environmental assessment and sustainability of the coastal zone. This article describes requirements for coastal zone management, reasons for failures during recent naval accidents, possible drawbacks of implementing an integrated coastal zone management framework in Sri Lanka, and ways to overcome these challenges.

Der vorliegende Beitrag ist eine stark gekuerzte Fassung eines Aufsatzes von SCHEELE/ISERMEYER/SCHMITT (1992), in dem ein systematischer Ansatz fuer die Beurteilung umweltpolitischer Strategien zur Verringerung umweltgefaehrdender Stickstoffemissionen aus der Landwirtschaft vorgestellt und auf verschiedene Teilprobleme der Stickstoffproblematik angewendet wird.