Plants in aquatic ecosystems: current trends and future directions

Aquatic plants fulfil a wide range of ecological roles, and make a substantial contribution to the structure, function and service provision of aquatic ecosystems. Given their well-documented importance in aquatic ecosystems, research into aquatic plants continues to blossom. The 14th International Symposium on Aquatic Plants, held in Edinburgh in September 2015, brought together 120 delegates from 28 countries and six continents. This special issue of Hydrobiologia includes a select number of papers on aspects of aquatic plants, covering a wide range of species, systems and issues. In this paper we present an overview of current trends and future directions in aquatic plant research in the early 21st century. Our understanding of aquatic plant biology, the range of scientific issues being addressed and the range of techniques available to researchers have all arguably never been greater; however, substantial challenges exist to the conservation and management of both aquatic plants and the ecosystems in which they are found. The range of countries and continents represented by conference delegates and authors of papers in the special issue illustrate the global relevance of aquatic plant research in the early 21st century but also the many challenges that this burgeoning scientific discipline must address

Coordination of pollution-related MSFD measures in the Mediterranean - Where we stand now and insights for the future

Various pollutants keep threatening the environmental status of the Mediterranean Sea, while the Marine Strategy Framework Directive requires that Good Environmental Status needs to be achieved in European Seas by 2020. Previous reviews already established that the ambition levels of national Programmes of Measures (PoMs) are low. This study focuses on the analyses of the levels of coherence and coordination of the proposed PoMs in the Mediterranean, concentrating on nutrient, contaminant, and marine litter pollution, as well as the introduction of non-indigenous species. Coherence and pollinator analyses of the proposed measures of Mediterranean EU Member States (MS) were performed. The results demonstrate that while the current coordination between MS is almost non-existent, several measures are already addressing the same pressures in similar ways and could be easily coordinated on transnational level. Increased coordination and coherence of PoMs in the Mediterranean are vital for achieving good environmental status in future years. © 2020 Elsevier Lt

Programmes of measures of the marine strategy framework directive:are they contributing to achieving good environmental status in the Mediterranean?

The Marine Strategy Framework Directive (MSFD) is the piece of legislation with which the EU aims to achieve Good Environmental Status (GES) of its seas. This Directive requires Member States (MSs) to set up and implement Programmes of Measures (PoMs) to achieve this goal. This paper presents a catalogue as well as the analysis of the 535 measures proposed by the eight Mediterranean EU MSs to combat pollution and non-indigenous species and contribute to the GES of the Mediterranean Sea. The results reiterate the need for better coherence and coordination between MSs, also with non-EU countries in the preparation of the next iteration of PoMs. Only 5% of the measures applied have an effect beyond MSs´ marine waters jurisdiction, and a fifth of them lack linkages with any ecosystem component. The results point to gaps, while desired goals and recommendations will help policy makers to implement the and conceptualise measures

Evaluating the progress in achieving Good Environmental Status in the Mediterranean:a methodology to assess the effectiveness of Marine Strategy Framework Directive's Programmes of Measures

The Marine Strategy Framework Directive (2008/56/EC) aims to achieve Good Environmental Status of the European Union's marine waters for which the EU Member States are preparing Programmes of Measures (PoMs) to coordinate policies and improve the marine environmental status. These Programmes are revised every six years, yet there is currently no comprehensive and robust methodology to assess the effectiveness of PoMs and their contribution to reaching Good Environmental Status. This paper presents a new and concrete methodology combining policy, socio-economical, and environmental aspects, relying on available monitoring data, official reporting, and expert judgement to yield easily comparable numerical results. The utility of this methodology is also demonstrated on a series of hypothethical measures under descriptors 1 (Biological diversity), 3 (Commerical fisheries stocks), 6 (Seafloor integrity), and 10 (Marine litter). The demonstration shows how the method can be used by policy and decision-makers across the EU, as well as a variety of expert and non-governmental actors to evaluate the progress and potential of individual PoMs on national and (sub)regional levels. Therefore, the method could pave the way to more coherent, coordinated and effective measures to protect EU seas

Evaluating the progress in achieving Good Environmental Status in the Mediterranean:a methodology to assess the effectiveness of Marine Strategy Framework Directive's Programmes of Measures

The Marine Strategy Framework Directive (2008/56/EC) aims to achieve Good Environmental Status of the European Union's marine waters for which the EU Member States are preparing Programmes of Measures (PoMs) to coordinate policies and improve the marine environmental status. These Programmes are revised every six years, yet there is currently no comprehensive and robust methodology to assess the effectiveness of PoMs and their contribution to reaching Good Environmental Status. This paper presents a new and concrete methodology combining policy, socio-economical, and environmental aspects, relying on available monitoring data, official reporting, and expert judgement to yield easily comparable numerical results. The utility of this methodology is also demonstrated on a series of hypothethical measures under descriptors 1 (Biological diversity), 3 (Commerical fisheries stocks), 6 (Seafloor integrity), and 10 (Marine litter). The demonstration shows how the method can be used by policy and decision-makers across the EU, as well as a variety of expert and non-governmental actors to evaluate the progress and potential of individual PoMs on national and (sub)regional levels. Therefore, the method could pave the way to more coherent, coordinated and effective measures to protect EU seas