- Email: [email protected]
Portuguese estuaries
Volume 2 l/Number l()/October 1990
to ensure that reliable data were acquired. Generally, Walton, Chairman, Standing Committee on the Fraser concentrations of organic compounds in sediments River Estuary Water Quality Plan, Ministry of Environwere below the apparent effects threshold (AET) estab- ment, Waste Management, 15326-103A Avenue, Surrey, B.C., Canada V3R 7A2. lished for Puget Sound. M. WALDICHUK P. Striplin of the Puget Sound Water Quality Authority reviewed sediment studies being conducted in Washington State in a paper 'Puget Sound ambient monitoring programme: marine sediment quality'. The general purpose of the programme is to provide a record of the condition of Puget Sound sediments and to reveal any trends that may be occurring. There is a total of 119 sampling stations. The sediments are In March of this year, some 120 participants met for a analysed for 23 priority pollutants. Amphipod bio- two day conference at the University of Lisbon, Portuassays are carried out and have given up to 44% gal to discuss the present state of estuarine research in mortality. Microtox assays using microorganisms have Portugal. The meeting essentially aimed to bring been conducted also but have shown nothing of signifi- together Portuguese estuarine workers in order to describe recent developments in the field and to procance. M. Wan of the Pesticides Group, Conservation and mote cooperation both between individual researchers Protection, DOE, West Vancouver discussed contamin- and between their institutions. A major aim of this ation by agricultural runoff in a paper 'Presticides in increased collaboration is to create the Portuguese assoagricultural drainages on the Lower Mainland'. One ciation of estuaries and coastal systems (Associaqfio study was done from 1985 to 1987 and another in Portuguesa de Estufirios e Meios Litorais). This asso1988. The pesticides for which analyses were carried ciation will promote interdisciplinary research and colout included Azinphos methyl, Diazinon, Dinoseb, laboration and will organize regular scientific meetings Endosulfan and Fenosulftan. Dinoseb was found in for the scientists and environmental managers within ditches at a mean concentration of 5 mg. 1-~ with a Portugal. During the first day of the conference, invited papers range of 0.3-12.6 mg- 1-1. Endosulfan in ditches gave a presented an overall view of the current status of mean concentration of 1.53 rag-I -~ with a range of several disciplines in Portuguese estuarine studies. 0.50-2.70 mg. 1-~. Diazinon residues were found in Carlos Vale (Instituto Nacional Investigaqfio das water and sediments of a cranberry bog. The mean and Pescas) discussed chemical aspects such as the work on range in concentrations of Diazinon in the water were processes, speciation, nutrients, and bioaccumulation of 0.240 rag" l-~ and 0.079-0.456 mg" I-~, respectively, contaminants. Isabel Ambar (Universidade de Lisboa) 24 h following spraying. Acute bioassays were condescribed work on physical aspects, particularly ducted with rainbow trout, cut-throat trout, lake trout, daphnia and stonefly as test organisms. The 96 h LCs0 hydrodynamic processes and their role in muttidiscipliwas 240 ~tg- 1-t for Daphnia and 2.3 ~tg- 1-1 for stone- nary studies. Carlos Romariz (Universidade de Lisboa) fly. Chronic effects were determined exposing fish eggs covered geological, topographical, and sedimentary for 21 days before hatching. With small concentrations aspects. Francisco Andrade (Universidade de Lisboa) of Dinoseb and Endosulfan, there was found to be an described the biological studies being carried out to assess the structure of the communities as well as their impact on fish. R. McDonald of Brown and Caldwell Consultants, response to anthropogenic activities. The history and San Francisco, California, reviewed results of a study of central role of numerical and physical modelling studies a sewage treatment plant outfall plume characterization were covered respectively by Ramiro Neves (Istituto in a paper 'Iona seage treatment plant discharge disper- Superior T~cnico) and Pims Elias (Laborat6rio sion'. The effluent from the Iona Island Sewage Treat- Nacional de Engenharia Civil). The papers gave an indication of the large number of ment Plant, located on the North Arm of the Fraser River is conveyed by a pipeline for 4.5 km across Stur- studies currently carried out on the estuarine and geon Bank and then by twin pipes 2.7 km below the lagoon systems in Portugal including the major estuawater to diffusers that range in depth from 70 m to 105 rine systems of the Tejo, Mira, Sado and Mondego and m. The sewage plume is about 40 m thick and the top of the coastal brackish lagoons and rias. The workers indiit lies about 30 m below the sea surface. The plume was cated that greater collaboration was needed to increase not expected to surface at any time. Rhodamine WT the cost-effectiveness of the studies. The papers also dye and in situ fluorometers were used to track the showed that the studies presently carried out in the sewage plume. The plume generally travelled north- country are driven by the same factors as elsewhere, ward. The dilution ranged from 242:1 to 593:1 at particularly the importance and threats to these wetland trapping depths of 69 and 88 m, respectively. Dilution areas, and that the scientists have the same difficulties at a distance of 9 km from the diffusers was estimated at of lack of resources. Twenty-five posters gave an indication of the parti10 000:1. In general, bacteria behaved as predicted; cular studies recently carried out or still in progress where dye was dense, the bacteria count was high. There will be a proceedings published for this work- within the country's academic, research and governshop, but it will contain only abstracts of the papers mental establishments. These studies covered micropresented. For further information contact: Dr. D. G. biology, plankton, benthos, ichthyofauna, micro and
Portuguese estuaries
491
Marine Pollution Bulletin
macrophytobenthos, physico-chemical water column aspects, artificial reefs, pollution effects, sedimentary organic and inorganic chemistry, and sedimentology. During the second day, representatives of the Junta Nacional da Investigaqfio Cientifica e Tecnol6gica (JNICT) and the American-Portuguese FLAD highlighted the mechanisms of funding for research and development programmes in Portuguese estuarine and coastal science. Following this, invited representatives from outside Portugal gave papers to put the Portuguese activities into context. The history and activities of other estuarine and coastal scientific associations was given by Professor Eugene Cronin (Estuarine Research Federation, USA), Dr Mike Elliott (Estuarine and Coastal Sciences Association) and Dr Bernard Sylvand (Groupe d'l~tudes des Milieux Estuariens et Litoraux, France). In addition, Drs Elliott and Sylvand
and Professor John Costlow, respectively, gave further papers describing the status of estuarine science in Northern Europe and France and the role of associations in marine and estuarine science. The conference was financially supported by the Associaqfio Portuguesa de Bidlogos, The British Council, Fundaqfio Luso-Americana para o Desenvolvimento (FLAD) and Banco Espirito Santo Comercial de Lisboa. The proceedings of the conference are to be published and anyone wishing further information should contact Dr Victor Quintino, Laboratdrio Nacional de Engenharia e Tecnologia Industrial-DEII, Azinhaga dos Lameiros, 1699 Lisboa Codex, Portugal, or Prof. Francisco Andrade, Laborat6rio Maritimo da Guia, Estrada do Guincho, 2750 Cascais, Portugal. VICTOR QUINTINO MIKE ELLIOTT
Pollution Management
Channel Sedimentation
A conference on Pollution Management will be held in Birmingham on 2-3 October, 1990. For further information contact Caroline Hurley, Financial Times Conference Organization, 126 Jermyn Street, London SW1Y 4UJ, UK.
A Seminar on Harbour and Approach Channel Sedimentation will be held at Hydraulics Research, Wallingford, Oxfordshire on 24-25 October, 1990. For further information contact Mrs Fiona M. Farnsworth, Hydraulics Research Limited, Wallingford, Oxon OX10 8BA, UK.
Waste Management The 13th Canadian Conference on Waste Management will be held in St John's, Newfoundland, on 2-5 October, 1990. For further information contact Susan Clarke, Environment Canada, Ottawa, Ontario, Canada.
WPCF Conference The WPCF Annual Conference will be held in Washington D.C. on 7-11 October, 1990. For further information contact WPCF Conference Department, 601 Wythe Street, Alexandria, VA 22314, USA.
Teehnomer 90 An International Business Convention on Techniques and Sciences in the Sea will be held in Brest, France, on 10-12 October, 1990. For further information contact Communaut6 Urbaine de Brest, Drpartement Actions Economiques, 24 rue Coat Ar Gurvefi, BP 883, 29279 Brest Crdex, France.
Irish Sea The Irish Sea Conference will be held in Douglas, Isle of Man on 22-24 October, 1990. For further information contact Gloria Watterson, Group & Conference Travel, Central Promenade, Douglas, Isle of Man, UK. 492
Aquatic Toxicity The 17th Annual Aquatic Toxicity Workshop will be held in Vancouver B.C. on 5-7 November, 1990. For further information contact Dr Marshall Adams, Environmental Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 378316036, USA.
Environmental Policy A residential international forum on Environmental Policy and Management will be held in Alfriston, East Sussex, UK on 7-14 November, 1990. For further information contact Courses Department, British Council, 65 Davies Street, London W1Y 2AA, UK, or any British Council Office.
Wastewater Treatment The 13th International Symposium on Wastewater Treatment will be held in Montreal, Quebec, on 14-16 November, 1990. For further information contact Eric Bouchard, AQTE-Symposium 90, 407 Boulevard Saint Laurent, Suite 500, Montreal, Quebec, Canada H2Y 2Y5.
Estuary Management A seminar on Environmental Aspects of Estuary
to ensure that reliable data were acquired. Generally, Walton, Chairman, Standing Committee on the Fraser concentrations of organic compounds in sediments River Estuary Water Quality Plan, Ministry of Environwere below the apparent effects threshold (AET) estab- ment, Waste Management, 15326-103A Avenue, Surrey, B.C., Canada V3R 7A2. lished for Puget Sound. M. WALDICHUK P. Striplin of the Puget Sound Water Quality Authority reviewed sediment studies being conducted in Washington State in a paper 'Puget Sound ambient monitoring programme: marine sediment quality'. The general purpose of the programme is to provide a record of the condition of Puget Sound sediments and to reveal any trends that may be occurring. There is a total of 119 sampling stations. The sediments are In March of this year, some 120 participants met for a analysed for 23 priority pollutants. Amphipod bio- two day conference at the University of Lisbon, Portuassays are carried out and have given up to 44% gal to discuss the present state of estuarine research in mortality. Microtox assays using microorganisms have Portugal. The meeting essentially aimed to bring been conducted also but have shown nothing of signifi- together Portuguese estuarine workers in order to describe recent developments in the field and to procance. M. Wan of the Pesticides Group, Conservation and mote cooperation both between individual researchers Protection, DOE, West Vancouver discussed contamin- and between their institutions. A major aim of this ation by agricultural runoff in a paper 'Presticides in increased collaboration is to create the Portuguese assoagricultural drainages on the Lower Mainland'. One ciation of estuaries and coastal systems (Associaqfio study was done from 1985 to 1987 and another in Portuguesa de Estufirios e Meios Litorais). This asso1988. The pesticides for which analyses were carried ciation will promote interdisciplinary research and colout included Azinphos methyl, Diazinon, Dinoseb, laboration and will organize regular scientific meetings Endosulfan and Fenosulftan. Dinoseb was found in for the scientists and environmental managers within ditches at a mean concentration of 5 mg. 1-~ with a Portugal. During the first day of the conference, invited papers range of 0.3-12.6 mg- 1-1. Endosulfan in ditches gave a presented an overall view of the current status of mean concentration of 1.53 rag-I -~ with a range of several disciplines in Portuguese estuarine studies. 0.50-2.70 mg. 1-~. Diazinon residues were found in Carlos Vale (Instituto Nacional Investigaqfio das water and sediments of a cranberry bog. The mean and Pescas) discussed chemical aspects such as the work on range in concentrations of Diazinon in the water were processes, speciation, nutrients, and bioaccumulation of 0.240 rag" l-~ and 0.079-0.456 mg" I-~, respectively, contaminants. Isabel Ambar (Universidade de Lisboa) 24 h following spraying. Acute bioassays were condescribed work on physical aspects, particularly ducted with rainbow trout, cut-throat trout, lake trout, daphnia and stonefly as test organisms. The 96 h LCs0 hydrodynamic processes and their role in muttidiscipliwas 240 ~tg- 1-t for Daphnia and 2.3 ~tg- 1-1 for stone- nary studies. Carlos Romariz (Universidade de Lisboa) fly. Chronic effects were determined exposing fish eggs covered geological, topographical, and sedimentary for 21 days before hatching. With small concentrations aspects. Francisco Andrade (Universidade de Lisboa) of Dinoseb and Endosulfan, there was found to be an described the biological studies being carried out to assess the structure of the communities as well as their impact on fish. R. McDonald of Brown and Caldwell Consultants, response to anthropogenic activities. The history and San Francisco, California, reviewed results of a study of central role of numerical and physical modelling studies a sewage treatment plant outfall plume characterization were covered respectively by Ramiro Neves (Istituto in a paper 'Iona seage treatment plant discharge disper- Superior T~cnico) and Pims Elias (Laborat6rio sion'. The effluent from the Iona Island Sewage Treat- Nacional de Engenharia Civil). The papers gave an indication of the large number of ment Plant, located on the North Arm of the Fraser River is conveyed by a pipeline for 4.5 km across Stur- studies currently carried out on the estuarine and geon Bank and then by twin pipes 2.7 km below the lagoon systems in Portugal including the major estuawater to diffusers that range in depth from 70 m to 105 rine systems of the Tejo, Mira, Sado and Mondego and m. The sewage plume is about 40 m thick and the top of the coastal brackish lagoons and rias. The workers indiit lies about 30 m below the sea surface. The plume was cated that greater collaboration was needed to increase not expected to surface at any time. Rhodamine WT the cost-effectiveness of the studies. The papers also dye and in situ fluorometers were used to track the showed that the studies presently carried out in the sewage plume. The plume generally travelled north- country are driven by the same factors as elsewhere, ward. The dilution ranged from 242:1 to 593:1 at particularly the importance and threats to these wetland trapping depths of 69 and 88 m, respectively. Dilution areas, and that the scientists have the same difficulties at a distance of 9 km from the diffusers was estimated at of lack of resources. Twenty-five posters gave an indication of the parti10 000:1. In general, bacteria behaved as predicted; cular studies recently carried out or still in progress where dye was dense, the bacteria count was high. There will be a proceedings published for this work- within the country's academic, research and governshop, but it will contain only abstracts of the papers mental establishments. These studies covered micropresented. For further information contact: Dr. D. G. biology, plankton, benthos, ichthyofauna, micro and
Portuguese estuaries
491
Marine Pollution Bulletin
macrophytobenthos, physico-chemical water column aspects, artificial reefs, pollution effects, sedimentary organic and inorganic chemistry, and sedimentology. During the second day, representatives of the Junta Nacional da Investigaqfio Cientifica e Tecnol6gica (JNICT) and the American-Portuguese FLAD highlighted the mechanisms of funding for research and development programmes in Portuguese estuarine and coastal science. Following this, invited representatives from outside Portugal gave papers to put the Portuguese activities into context. The history and activities of other estuarine and coastal scientific associations was given by Professor Eugene Cronin (Estuarine Research Federation, USA), Dr Mike Elliott (Estuarine and Coastal Sciences Association) and Dr Bernard Sylvand (Groupe d'l~tudes des Milieux Estuariens et Litoraux, France). In addition, Drs Elliott and Sylvand
and Professor John Costlow, respectively, gave further papers describing the status of estuarine science in Northern Europe and France and the role of associations in marine and estuarine science. The conference was financially supported by the Associaqfio Portuguesa de Bidlogos, The British Council, Fundaqfio Luso-Americana para o Desenvolvimento (FLAD) and Banco Espirito Santo Comercial de Lisboa. The proceedings of the conference are to be published and anyone wishing further information should contact Dr Victor Quintino, Laboratdrio Nacional de Engenharia e Tecnologia Industrial-DEII, Azinhaga dos Lameiros, 1699 Lisboa Codex, Portugal, or Prof. Francisco Andrade, Laborat6rio Maritimo da Guia, Estrada do Guincho, 2750 Cascais, Portugal. VICTOR QUINTINO MIKE ELLIOTT
Pollution Management
Channel Sedimentation
A conference on Pollution Management will be held in Birmingham on 2-3 October, 1990. For further information contact Caroline Hurley, Financial Times Conference Organization, 126 Jermyn Street, London SW1Y 4UJ, UK.
A Seminar on Harbour and Approach Channel Sedimentation will be held at Hydraulics Research, Wallingford, Oxfordshire on 24-25 October, 1990. For further information contact Mrs Fiona M. Farnsworth, Hydraulics Research Limited, Wallingford, Oxon OX10 8BA, UK.
Waste Management The 13th Canadian Conference on Waste Management will be held in St John's, Newfoundland, on 2-5 October, 1990. For further information contact Susan Clarke, Environment Canada, Ottawa, Ontario, Canada.
WPCF Conference The WPCF Annual Conference will be held in Washington D.C. on 7-11 October, 1990. For further information contact WPCF Conference Department, 601 Wythe Street, Alexandria, VA 22314, USA.
Teehnomer 90 An International Business Convention on Techniques and Sciences in the Sea will be held in Brest, France, on 10-12 October, 1990. For further information contact Communaut6 Urbaine de Brest, Drpartement Actions Economiques, 24 rue Coat Ar Gurvefi, BP 883, 29279 Brest Crdex, France.
Irish Sea The Irish Sea Conference will be held in Douglas, Isle of Man on 22-24 October, 1990. For further information contact Gloria Watterson, Group & Conference Travel, Central Promenade, Douglas, Isle of Man, UK. 492
Aquatic Toxicity The 17th Annual Aquatic Toxicity Workshop will be held in Vancouver B.C. on 5-7 November, 1990. For further information contact Dr Marshall Adams, Environmental Sciences Division, Oak Ridge National Laboratory, P.O. Box 2008, Oak Ridge, TN 378316036, USA.
Environmental Policy A residential international forum on Environmental Policy and Management will be held in Alfriston, East Sussex, UK on 7-14 November, 1990. For further information contact Courses Department, British Council, 65 Davies Street, London W1Y 2AA, UK, or any British Council Office.
Wastewater Treatment The 13th International Symposium on Wastewater Treatment will be held in Montreal, Quebec, on 14-16 November, 1990. For further information contact Eric Bouchard, AQTE-Symposium 90, 407 Boulevard Saint Laurent, Suite 500, Montreal, Quebec, Canada H2Y 2Y5.
Estuary Management A seminar on Environmental Aspects of Estuary