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Article: Forecasting of dissolved oxygen in marine fish culture zone

TitleForecasting of dissolved oxygen in marine fish culture zone
Authors
KeywordsArticle
Fish
Marine Environment
Mathematical Model
Nonhuman
Oxygen Consumption
Oxygen Supply
Water Quality
Issue Date1991
PublisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.html
Citation
Journal Of Environmental Engineering, 1991, v. 117 n. 6, p. 816-833 How to Cite?
AbstractShort-term trends in dissolved oxygen in a weakly flushed marine fish culture zone in Hong Kong are studied by a real-time water-quality model with seven system variables: dissolved oxygen, chlorophyll-a, organic nitrogen, ammonia, nitrate, zooplankton, and sediment algal carbon. The carbon-chlorophyll ratio is computed as a function of a time-variable saturating light intensity ratio is computed as a function of a time-variable saturating light intensity. Sediment oxygen demand is related to organic loads from the fish farm as well as algal biomass. Water-quality predictions are compared with well-documented field observations for both background and algal bloom conditions, over time scales on the order of a month. Model simulations demonstrate the importance of light intensity and photosynthetic production in dissolved oxygen variations, which are well predicted. The model also provides useful insights into the causes of severe oxygen depletion and phytoplankton dynamics in a eutrophic subtropical coastal marine ecosystem.
Persistent Identifierhttp://hdl.handle.net/10722/92714
ISSN
2015 Impact Factor: 1.125
2015 SCImago Journal Rankings: 0.462

 

DC FieldValueLanguage
dc.contributor.authorLee, JHWen_HK
dc.contributor.authorWu, RSSen_HK
dc.contributor.authorCheung, YKen_HK
dc.date.accessioned2010-09-17T10:55:01Z-
dc.date.available2010-09-17T10:55:01Z-
dc.date.issued1991en_HK
dc.identifier.citationJournal Of Environmental Engineering, 1991, v. 117 n. 6, p. 816-833en_HK
dc.identifier.issn0733-9372en_HK
dc.identifier.urihttp://hdl.handle.net/10722/92714-
dc.description.abstractShort-term trends in dissolved oxygen in a weakly flushed marine fish culture zone in Hong Kong are studied by a real-time water-quality model with seven system variables: dissolved oxygen, chlorophyll-a, organic nitrogen, ammonia, nitrate, zooplankton, and sediment algal carbon. The carbon-chlorophyll ratio is computed as a function of a time-variable saturating light intensity ratio is computed as a function of a time-variable saturating light intensity. Sediment oxygen demand is related to organic loads from the fish farm as well as algal biomass. Water-quality predictions are compared with well-documented field observations for both background and algal bloom conditions, over time scales on the order of a month. Model simulations demonstrate the importance of light intensity and photosynthetic production in dissolved oxygen variations, which are well predicted. The model also provides useful insights into the causes of severe oxygen depletion and phytoplankton dynamics in a eutrophic subtropical coastal marine ecosystem.en_HK
dc.languageengen_HK
dc.publisherAmerican Society of Civil Engineers. The Journal's web site is located at http://www.pubs.asce.org/journals/ee.htmlen_HK
dc.relation.ispartofJournal of Environmental Engineeringen_HK
dc.subjectArticleen_HK
dc.subjectFishen_HK
dc.subjectMarine Environmenten_HK
dc.subjectMathematical Modelen_HK
dc.subjectNonhumanen_HK
dc.subjectOxygen Consumptionen_HK
dc.subjectOxygen Supplyen_HK
dc.subjectWater Qualityen_HK
dc.titleForecasting of dissolved oxygen in marine fish culture zoneen_HK
dc.typeArticleen_HK
dc.identifier.emailLee, JHW: hreclhw@hku.hken_HK
dc.identifier.emailWu, RSS: rudolfwu@hku.hken_HK
dc.identifier.emailCheung, YK: hreccyk@hkucc.hku.hken_HK
dc.identifier.authorityLee, JHW=rp00061en_HK
dc.identifier.authorityWu, RSS=rp01398en_HK
dc.identifier.authorityCheung, YK=rp00104en_HK
dc.description.naturelink_to_subscribed_fulltext-
dc.identifier.scopuseid_2-s2.0-0026254232en_HK
dc.identifier.volume117en_HK
dc.identifier.issue6en_HK
dc.identifier.spage816en_HK
dc.identifier.epage833en_HK
dc.publisher.placeUnited Statesen_HK
dc.identifier.scopusauthoridLee, JHW=36078318900en_HK
dc.identifier.scopusauthoridWu, RSS=7402945079en_HK
dc.identifier.scopusauthoridCheung, YK=7202111065en_HK

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