Evaluation of coastal waters receiving fish processing waste: Lota bay as a case study
Identifieur interne : 000A34 ( Main/Exploration ); précédent : 000A33; suivant : 000A35Evaluation of coastal waters receiving fish processing waste: Lota bay as a case study
Auteurs : Ramon Ahumada [Chili] ; Anny Rudolph [Chili] ; Sergio Contreras [Chili]Source :
- Environmental monitoring and assessment [ 0167-6369 ] ; 2004.
Descripteurs français
- KwdFr :
- Animaux (MeSH), Chili (MeSH), Chlorure de sodium (analyse), Composés d'ammonium quaternaire (analyse), Déchets industriels (MeSH), Gestion des déchets (MeSH), Huiles industrielles (analyse), Océans et mers (MeSH), Oxygène (analyse), Polluants de l'eau (analyse), Pérou (MeSH), Pêcheries (MeSH), Saisons (MeSH), Surveillance de l'environnement (MeSH), Température (MeSH), Élimination des déchets liquides (MeSH).
- MESH :
- Pascal (Inist)
- Animaux, Chili, Déchets industriels, Gestion des déchets, Océans et mers, Pérou, Pêcheries, Saisons, Surveillance de l'environnement, Température, Zone côtière, Pollution eau, Eau mer, Baie, Rejet eau usée, Eau usée industrielle, Industrie poisson, Impact environnement, Qualité eau, Propriété physicochimique, Composition chimique, Distribution concentration, Variation saisonnière, Élimination des déchets liquides.
- Wicri :
English descriptors
- KwdEn :
- Animals (MeSH), Bay, Chemical composition, Chile, Chile (MeSH), Coastal zone, Concentration distribution, Environment impact, Environmental Monitoring (MeSH), Fish industry, Fisheries (MeSH), Industrial Oils (analysis), Industrial Waste (MeSH), Industrial waste water, Oceans and Seas (MeSH), Oxygen (analysis), Peru, Peru (MeSH), Physicochemical properties, Quaternary Ammonium Compounds (analysis), Seasonal variation, Seasons (MeSH), Seawater, Sodium Chloride (analysis), Temperature (MeSH), Waste Disposal, Fluid (MeSH), Waste Management (MeSH), Waste water discharge, Water Pollutants (analysis), Water pollution, Water quality.
- MESH :
- chemical , analysis : Oxygen, Quaternary Ammonium Compounds, Sodium Chloride, Water Pollutants.
- chemical : Industrial Waste.
- geographic : Chile, Peru.
- analysis : Industrial Oils.
- Animals, Environmental Monitoring, Fisheries, Oceans and Seas, Seasons, Temperature, Waste Disposal, Fluid, Waste Management.
Abstract
Liquid wastes from the fish meal and oil processing industries produce serious environmental impacts in coastal embayments on the coasts of Chile and Peru. This article presents an analysis of an environmental monitoring program at Lota Bay, a shallow coastal indentation in central Chile (37°S) exposed to industrial fishing activity. The study of the environmental impact produced by waste effluents permitted making an evaluation of the bay's capacity for seasonal recovery from this impact. Seasonal cruises were carried out during 1994 and in 1996, 1997, and 1998. Variables analyzed included salinity, temperature, dissolved oxygen, ammonium concentration and surface oil and grease. The hydrographic regime of Lota Bay follows a seasonal pattern, where, typical of most SE pacific embayments, waters from subsuperficial oxygen minimum zones moved into the bay. The percentages of dissolved oxygen were critical in the area of organic waste discharge. The impact of wastewater is related to the type and status of the fishery, including: (i) overloads of plant production lines, (ii) maintenance and cleaning of installations, and (iii) degree of shipboard fishing conservation. Major alterations were observed in summer, when the highest discharge of organic load occurred. In winter, an improvement in the re-aeration conditions reduced the impact. Remedial measures implemented beginning in 1997 arose from the monitoring program and had to be separated into two recovery factors including (a) internal management of plants and (b) treatment of plant effluents.
Affiliations:
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Le document en format XML
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Animals (MeSH)</term>
<term>Bay</term>
<term>Chemical composition</term>
<term>Chile</term>
<term>Chile (MeSH)</term>
<term>Coastal zone</term>
<term>Concentration distribution</term>
<term>Environment impact</term>
<term>Environmental Monitoring (MeSH)</term>
<term>Fish industry</term>
<term>Fisheries (MeSH)</term>
<term>Industrial Oils (analysis)</term>
<term>Industrial Waste (MeSH)</term>
<term>Industrial waste water</term>
<term>Oceans and Seas (MeSH)</term>
<term>Oxygen (analysis)</term>
<term>Peru</term>
<term>Peru (MeSH)</term>
<term>Physicochemical properties</term>
<term>Quaternary Ammonium Compounds (analysis)</term>
<term>Seasonal variation</term>
<term>Seasons (MeSH)</term>
<term>Seawater</term>
<term>Sodium Chloride (analysis)</term>
<term>Temperature (MeSH)</term>
<term>Waste Disposal, Fluid (MeSH)</term>
<term>Waste Management (MeSH)</term>
<term>Waste water discharge</term>
<term>Water Pollutants (analysis)</term>
<term>Water pollution</term>
<term>Water quality</term>
</keywords>
<keywords scheme="KwdFr" xml:lang="fr"><term>Animaux (MeSH)</term>
<term>Chili (MeSH)</term>
<term>Chlorure de sodium (analyse)</term>
<term>Composés d'ammonium quaternaire (analyse)</term>
<term>Déchets industriels (MeSH)</term>
<term>Gestion des déchets (MeSH)</term>
<term>Huiles industrielles (analyse)</term>
<term>Océans et mers (MeSH)</term>
<term>Oxygène (analyse)</term>
<term>Polluants de l'eau (analyse)</term>
<term>Pérou (MeSH)</term>
<term>Pêcheries (MeSH)</term>
<term>Saisons (MeSH)</term>
<term>Surveillance de l'environnement (MeSH)</term>
<term>Température (MeSH)</term>
<term>Élimination des déchets liquides (MeSH)</term>
</keywords>
<keywords scheme="MESH" type="chemical" qualifier="analysis" xml:lang="en"><term>Oxygen</term>
<term>Quaternary Ammonium Compounds</term>
<term>Sodium Chloride</term>
<term>Water Pollutants</term>
</keywords>
<keywords scheme="MESH" type="chemical" xml:lang="en"><term>Industrial Waste</term>
</keywords>
<keywords scheme="MESH" type="geographic" xml:lang="en"><term>Chile</term>
<term>Peru</term>
</keywords>
<keywords scheme="MESH" qualifier="analyse" xml:lang="fr"><term>Chlorure de sodium</term>
<term>Composés d'ammonium quaternaire</term>
<term>Huiles industrielles</term>
<term>Oxygène</term>
<term>Polluants de l'eau</term>
</keywords>
<keywords scheme="MESH" qualifier="analysis" xml:lang="en"><term>Industrial Oils</term>
</keywords>
<keywords scheme="MESH" xml:lang="en"><term>Animals</term>
<term>Environmental Monitoring</term>
<term>Fisheries</term>
<term>Oceans and Seas</term>
<term>Seasons</term>
<term>Temperature</term>
<term>Waste Disposal, Fluid</term>
<term>Waste Management</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Animaux</term>
<term>Chili</term>
<term>Déchets industriels</term>
<term>Gestion des déchets</term>
<term>Océans et mers</term>
<term>Pérou</term>
<term>Pêcheries</term>
<term>Saisons</term>
<term>Surveillance de l'environnement</term>
<term>Température</term>
<term>Zone côtière</term>
<term>Pollution eau</term>
<term>Eau mer</term>
<term>Baie</term>
<term>Rejet eau usée</term>
<term>Eau usée industrielle</term>
<term>Industrie poisson</term>
<term>Impact environnement</term>
<term>Qualité eau</term>
<term>Propriété physicochimique</term>
<term>Composition chimique</term>
<term>Distribution concentration</term>
<term>Variation saisonnière</term>
<term>Élimination des déchets liquides</term>
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<keywords scheme="Wicri" type="geographic" xml:lang="fr"><term>Chili</term>
<term>Pérou</term>
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<front><div type="abstract" xml:lang="en">Liquid wastes from the fish meal and oil processing industries produce serious environmental impacts in coastal embayments on the coasts of Chile and Peru. This article presents an analysis of an environmental monitoring program at Lota Bay, a shallow coastal indentation in central Chile (37°S) exposed to industrial fishing activity. The study of the environmental impact produced by waste effluents permitted making an evaluation of the bay's capacity for seasonal recovery from this impact. Seasonal cruises were carried out during 1994 and in 1996, 1997, and 1998. Variables analyzed included salinity, temperature, dissolved oxygen, ammonium concentration and surface oil and grease. The hydrographic regime of Lota Bay follows a seasonal pattern, where, typical of most SE pacific embayments, waters from subsuperficial oxygen minimum zones moved into the bay. The percentages of dissolved oxygen were critical in the area of organic waste discharge. The impact of wastewater is related to the type and status of the fishery, including: (i) overloads of plant production lines, (ii) maintenance and cleaning of installations, and (iii) degree of shipboard fishing conservation. Major alterations were observed in summer, when the highest discharge of organic load occurred. In winter, an improvement in the re-aeration conditions reduced the impact. Remedial measures implemented beginning in 1997 arose from the monitoring program and had to be separated into two recovery factors including (a) internal management of plants and (b) treatment of plant effluents.</div>
</front>
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<affiliations><list><country><li>Chili</li>
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<tree><country name="Chili"><noRegion><name sortKey="Ahumada, Ramon" sort="Ahumada, Ramon" uniqKey="Ahumada R" first="Ramon" last="Ahumada">Ramon Ahumada</name>
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<name sortKey="Contreras, Sergio" sort="Contreras, Sergio" uniqKey="Contreras S" first="Sergio" last="Contreras">Sergio Contreras</name>
<name sortKey="Rudolph, Anny" sort="Rudolph, Anny" uniqKey="Rudolph A" first="Anny" last="Rudolph">Anny Rudolph</name>
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