Dunstaffnage Marine Laboratory: projects/activities

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Directory entires that have specified Dunstaffnage Marine Laboratory as one of the geographic regions for the project/activity and are included in the AMAP, ENVINET, SAON and SEARCH directories. Note that the list of regions is not hierarchical, and there is no relation between regions (e.g. a record tagged with Nunavut may not be tagged with Canada). To see the full list of regions, see the regions list. To browse the catalog based on the originating country (leady party), see the list of countries.

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Displaying: 1 - 10 of 10
1. Microalgae as Cell Factories for Chemical and Biochemical Products

• To survey and document the state of the art in microalgal technology • To examine legislative and regulatory matters connected with the field • To bring together the various information on European algal collections into a single on-line portal • To develop the on-line database into a comprehensive tool for dissemination of knowledge pertaining to microalgae and microalgal research • To investigate current barriers to the use of microalgae and identify possible future uses of microalgae and microalgal technology • To help steer the direction of European research • To carry out technology transfer to the end users within the network, with measurable benefits for efficiency • To ensure the strategy involves dissemination to end-users outside the network partners • To ensure network cohesion and good communication between the partners • To develop an ongoing ‘virtual institute’ model and lay the groundwork for future RTD projects

Biological effects Food webs
2. Algal Toxins; their Accumulation and Loss in commercially Important Shellfish, including larval Mortality and Appraisal of Normal sampling procedures.

-Development of methods to enhance the rate of toxin depuration ( detoxification), especially in shellfish species of high economic value and prolonged retention e.g., King Scallops -Understanding the reaction products and metabolic transformations of toxins in shellfish tissues. -Determine the relationship between algal population dynamics ( including free cell and encysted stages ) to seasonal and spatial patterns of toxicity in shellfish populations. -Assess the effects of harmful algae on the various stages in the life history of shellfish ( Larvae, Spat, Adults ). -Investigate sampling frequencies and protocols ( live shellfish sampling ).

Biology Fish Environmental management Contaminant transport Food webs Diet Temporal trends Human health Human intake
3. Algal Toxins; their Accumulation and Loss in commercially Important Shellfish, including larval Mortality and Appraisal of Normal sampling procedures.

-Development of methods to enhance the rate of toxin depuration ( detoxification), especially in shellfish species of high economic value and prolonged retention e.g., King Scallops -Understanding the reaction products and metabolic transformations of toxins in shellfish tissues. -Determine the relationship between algal population dynamics ( including free cell and encysted stages ) to seasonal and spatial patterns of toxicity in shellfish populations. -Assess the effects of harmful algae on the various stages in the life history of shellfish ( Larvae, Spat, Adults ). -Investigate sampling frequencies and protocols ( live shellfish sampling ).

Biology Fish Environmental management Contaminant transport Food webs Diet Temporal trends Human health Human intake
4. Reducing the environmental impact of sea cage fish farming through the cultivation of seaweeds

Although the most visible effect of fish cage aquaculture is the output of particulate organic waste, 80% of the total nutrient losses from fish farming are plant-available as potentially eutrophicating substances. This project will assess the ability of commercially important seaweeds, cultivated in the immediate vicinity of caged fish, to reduce the impact of such nutrient releases. The algae cultivated in high nutrient sites will be tested as a food source for humans and for cultivated shellfish, and a model of the distribution of dissolved contaminants from sea-cage fish farms will be developed to predict the impact of introducing algal cultivation at any site.

Pathways Biological effects Fish Spatial trends Environmental management Contaminant transport Food webs Sediments Pesticides Temporal trends Ecosystems
5. The Effects of Turbidity on Marine Fishes

(a) To assemble and further develop an integrative methodology for in situ evaluation of the effects of turbidity and hypoxia on fish physiological and/or behavioural performance. (b) To determine experimentally the threshold values beyond which oxygen and turbidity levels are liable to alter fish physiological and/or behavioural performance. (c) To integrate the results obtained in a conceptual and predictive model. Main expected achievements: [1] establishment of a link between laboratory studies, studies in mesocosms and field studies, using the most advanced techniques for monitoring behaviour in various environmental conditions. [2] an understanding of the impact of water turbidity and oxygenation on three major components of the behavioural repertoire of fish: habitat selection, predator-prey interactions and schooling-aggregation. [3] Predictive ability for the effect of the environmental variables studied on ecologically relevant behaviour.

Shelf seas Biological effects Fish Environmental management Local pollution Food webs
6. BIOFiltration & AQuaculture: an evaluation of hard substrate deployment performance with mariculture developments

1. To quantify the effectiveness of the biofilters in reducing the impacts of mariculture across Europe from both an economic and environmental perspective. 2. To determine the best design and placements of the biofilters, accounting for differences in geography, hydrology, nutrient input etc. between countries. 3. To examine the environmental and regulatory options governing the use of the biofilters at the end of their life-span and to provide detailed economic analyses of biofilter use compared to existing filtration methods.

Biological effects Fish Discharges Pollution sources Environmental management Contaminant transport Modelling Local pollution Food webs Sediments Diet Ecosystems
7. Marine artificial habitat manipulation: predicition and measurement of environmental impacts

1. To establish an environmental monitoring regieme during and following the period of reef complex construction using, where possible, the same static monitoring sites and transects established during the pre-deployment research, in addition to new stations 2. To develop and test models that will predict ecosystem changes caused by artifical habitat manipulation. The main model will examine whole ecosystem changes. Other models will examine hydrological profile alterations, habitat fractal dimensions and socio-economic cost benefit analysis.

Fish Environmental management Biodiversity Food webs Temporal trends Ecosystems
8. Diversity and function of the bacterial flora of the toxic alga Gymnodinium catenatum Graham

1. To descirbe and compare the phylogenetic diversity and distribution of the total bacterial flora associated with G catenatum cysts and vegetative cells. 2. To culture and identify bacteria from G catenatum, and identify/characterise any bacteria capable of autonomous PST production in G. catenatum 3. To examine the effect of cyst surface sterilisation and re-introduction of bacteria on PST production in G catenatum 4. Survey bacteria for quorum sensing capability (cell signaling) and detect in situ quorum sesing in xenic G. catenatum cultures, relating to toxicity development. 5. Develop molecular markers of cross species quorum sensing, facilitating analysis of quorum sensing in uncultivated bacteria.

Pathways Biological effects Sources Fish Environmental management Food webs Human health Ecosystems Human intake
9. Correlation between algal presence in water and toxin presence in shellfish

1. Analysis of existing data from the current shellfish monitoring programmes in order to design a suitable sampling strategy 2. Ideentification of toxic algal species in UK waters 3. Construction of a detailed time-series at several key sites in the UK for toxic phytoplankton and shellfish toxin occurence 4. Comparison of the genotype versus toxicity of suspected toxic species between sites

Pathways Biological effects Algal Biology Fish Contaminant transport Exposure Food webs Ecosystems Human intake
10. The ecological effects of sealice treatment agents

1. To determine the effects of each of several sealice treatment chemicals on macrofaunal assemblages 2. To determine the effects of each of several sealice treatment chemicals on zooplankton assemblages 3. To determine the effects of each of several sealice treatment chemicals on meiofaunal assemblages 4. To determine the effects of each of several sealice treatment chemicals on benthic diatom assemblages 5. To determine the effects of each of several sealice treatment chemicals on phytoplankton assemblages 6. To determine the effects of each of several sealice treatment chemicals on macroalgal and littoral assemblages 7. To measure the concentrations of each of several sea lice treatment chemicals in the environment post-treatment 8. To determine the significant correlations between ecosystem responses, time and therapeutant concentration to determine the proportion of the observed environmental variance attributal to the treatments against a background of responses due to other parameters such as waste organic materials and nutrients 9. To model the dispersion and or depostion of farm wastes including of each of several sea lice treatment chemicals in the marine environment post treatment and to incorporate terms relating to the toxicity of these chemicals to certain parts of the ecosystem (e.g. the macrofauna)

Biological effects Hydrography Mapping Fish Discharges Environmental management Contaminant transport Modelling Food webs Sediments Pesticides Diet Ecosystems