Description: Das Projekt "Biologische Bekaempfung schaedlicher Algenblueten in europaeischen Kuestengewaessern: Rolle der Eutrophierung - BIOHAB" wird vom Umweltbundesamt gefördert und von Stiftung Alfred-Wegener-Institut für Polar- und Meeresforschung e.V. (AWI) durchgeführt. Objective: Biological control of Harmful Algal blooms in European coastal waters: role of eutrophication (BIOHAB). Problems to be solved: Harmful Algal Blooms (HAB) occur in many European marine waters and have increased in frequency concomitantly with a increased nutrient input from land. HABs have a devastating effect on the ecosystem and/or cause health problems in humans. Species of interest for BIOHAB belong to different taxonomic groups. Various algae belonging to these groups produce substances responsible for e g Paralytic Shellfish Poisoning and Diarrhetic Shellfish Poisoning. Some species are harmful in other ways, e g by creating oxygen deficiency. The success of HABs depends on several biological interactions, which are of a complex nature. The overall objective of BIOHAB is therefore to determine the interplay between (anthropogenic) eutrophication and biological control of the losses and gains of HABs. The ultimate goal is to find ways to manage phytoplankton algal blooms in European coastal waters in such a way that harmful species are avoided or at least that their negative effects are minimised. The co-operation involves several European countries, representing distinctly differing regions (the Baltic, the North Sea, coastal zone of Norway, the Mediterranean). Both the Helsinki (HELCOM) and Oslo Paris Commission (OPARCOM) have been established as intergovernmental organisations with as primary task the protection of the marine environments in the Baltic Sea and North Sea. BIOHAB will provide the necessary knowledge on HABs and their control within these commissions. Scientific objectives and approach: The scientific objectives are (1) To determine the susceptibility of HABs to biological control such as grazing (copepods, ciliates, hetero- and mixotrophic dinoflagellates) and/or infection (virus, bacteria, parasites) when growing under deficient as compared to sufficient nutrient conditions. (2) Investigate the release of infochemicals by HABs into the seawater with the aim to avoid grazing and infection. (3) To examine data sets of the general and unique patterns of growth and decay parameters of HAB-species in various coastal regions. (4) To develop a generic or species-specific model for the development of HABs and their mitigation. (5) To obtain and grow HAB species-specific pathogens (viruses, bacteria, parasites) which could potentially be used to terminate HABs (bio-control). The workplan combines laboratory and field experiments with in situ studies, to be carried out in 4 different European seas. This includes the low saline Baltic, the eutrophic N-controlled North Sea, the oligotrophic Norwegian Sea, and the P-limited Mediterranean Sea. Prime Contractor: Netherlands Institute for Sea Research, Department of Biological Oceanography; Den Burg.
Types:
SupportProgram
Origin: /Bund/UBA/UFORDAT
Tags: Ruderfußkrebs ? Algenblüte ? Krustazeen ? Populationsdynamik ? Oslo ? Nährstoffgehalt ? Eutrophierung ? Vergiftung ? Norwegen ? Paris ? Helsinki ? Biopharmazeutikum ? Geißeltierchen ? Meerwasser ? Phytoplankton ? Sauerstoff ? Wimpertierchen ? Niederlande ? Ostseeschutz ? Küstengewässer ? Meereskunde ? Marines Ökosystem ? Oligotrophie ? Virusinfektion ? Bakterien ? HELCOM ? Parasitose ? Stoff ? Beweidung ? Studie ? Trophiegrad ? Feldstudie ? Vergleichsanalyse ? Pathogenität ? Virus ? Meeresschutz ? Chemikalien ? Hydrobiologie ? Algen ? Meeresgewässer ? Küstenregion ? Meeresforschung ? Modellierung ? Nährstoffeintrag ? Europa ? Nährstoffmangel ? Internationales Übereinkommen ? Internationale Zusammenarbeit ? Parasit ? Kausalanalyse ? Kontrollmaßnahme ? Schutzmaßnahme ? Ostsee ? Ökosystem ? Infektion ? Laboruntersuchung ? Biologische Entwicklung ? Datenerhebung ? Krankheitserreger ? Mittelmeer ? Nordsee ? Freilandversuch ? Freisetzung ? in situ ? OPARCOM ? Oslo-Paris-Commission ? Pflanzenwachstum ? Helsinki-Übereinkommen [Ostseegebiet] ? Wachstum [biologisch] ? Eutrophie ? Wachstumsstörung ? Infochemikalien ? Dinoflagellaten ? Wassermikroorganismen ? Eignungsfeststellung ? BIOHAB ? Norwegian-Sea ?
Region: Bremen
Bounding box: 8.83333° .. 8.83333° x 53.08333° .. 53.08333°
License: cc-by-nc-nd/4.0
Language: Deutsch
Time ranges: 2000-03-01 - 2003-04-30
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