{"refrec":{"BRefID":3438,"RR":"<b>Persoone, G.; De Pauw, N.</b> (1968). Pollution in the harbour of Ostend (Belgium): biological and hydrographical consequences. <i>Helgol. Wiss. Meeresunters. 17</i>: 302-320","BEntID":3438,"PublicFlag":1,"CheckedFlag":0,"wosflag":null,"vabbflag":null,"RefStringPartII":". <i>Helgol. Wiss. Meeresunters. 17</i>: 302-320","DocTypID":8,"DocType":"Journal article","MarineFlag":1,"FreshFlag":0,"BrackishFlag":0,"TerrestrialFlag":0,"Authorstring":"Persoone, G.; De Pauw, N.","OrigTitleTranslFlag":0,"Authorstringtrunc":"Persoone, G.; De Pauw, N.","Englishabstract":"1. Ostend, situated in the middle of the Belgian coast, is a typical seaside resort with a population of 60,000 in the winter and up to 200,000 in summer. All sewage (to the major part raw dornestic sewage, to a lesser extent sewage of industrial origin) flows into its harbour, causing a daily in flow of ca. one part of sewage per 100 parts of harbour  water. This heavy pollution load causes significant physico-chemical and biological consequences. 2. The number of \"estuarine\" bacteria has increased enormously due to the great daily input of organic matter. The number of coliform bacteria is high; it decreases towards the seaward entrance of the harbour. 3. The beach in the small vicinity of the harbour is polluted. 4. The harbour water contains low amounts of dissolved oxygen; its transparency is reduced resulting in poor or in non-existent phyto-plankton production. 5. The number of zooplankton species decreases from the outer- to the inner parts of the harbour. 6. The benthos consists of black, completely anoxic mud, which strongly smells of sulfides; its content of organic matter is much higher than that of sediments in the open sea. 7. Rich development of a typical \" Aufwuchs\" biocoenosis which thrives on the richness in organic matter of the water . 8. Pollution of the harbour must be reduced or halted if even more serious danger is to be prevented.","AbstractOtherLang":"Le port d' Ostende reçoit chaque jour une quantité importante d'eaux polluées d'origine terrestre. A marée basse les égoûts de la ville et des faubourgs se déversent dans le port par trois émissaires. De plus, les canaux Noord-Eede et Ostende-Bruges amènent les eaux noires de plusieurs villes situées à l'est d'Ostende. Rien que pour les égoûts de la ville même, ceci signifie un apport journalier de 3 à 6 litres d'eaux usées par m³ d'eau portuaire. Des analyses sur la physico-chimie, la bactériologie, le plankton et le biotecton, effectuées à 3 points différents du port (A: à l'entrée du chenal; B: dans l'avant-port; C: à l'entrée de l'arrière-port) nous ont permis de tirer les conclusions suivantes: (a) Le déficit en oxygène dissous est trés grand surtout dans l'avant et l'arrière-port. (b) Il y a un nombre énorme de bactéries portuaires (\"estuarine\" bacteria) à la suite du grand apport de matières organiques. (c) Le nombre de bactéries coliformes est très grand et décroît de l'avant-port vers le chenal. (d) Les courants marins refoulent une partie des eaux polluées vers les plages voisines. (e) La trés grande turbidité de l'eau dans le port gêne considérablement la production phyto-planktonique. (f) Le benthos est complètement anoxique et riche en matières organiques et en sulfures. Il ne contient plus de protistes ni d'invertébrés. (g) Par suite de l'apport régulier de déchets riches en matières organiques le biotecton se développe considérablement. Il est constitué pour la majeure partie d'organismes bactériophages et détritivores.","BibLvlCode":"AS","StandardTitle":"Pollution in the harbour of Ostend (Belgium): biological and hydrographical consequences","OrigTitleLangCode":"en","OrigTitleLangCodeExtended":"eng","OrigTitleLangID":15,"DateLastModified":{"date":"2024-12-10 01:33:17.368041","timezone_type":1,"timezone":"+01:00"},"UserAccessRight":null,"UserAccID":null,"AuthorKeywords":null,"OtherDescriptors":null,"Notes":null,"AnaPub":1968,"MonPub":null,"DateUpdate":"2003-07-30","DateCreate":"2000-09-11","SecASFANote":null,"ConfID":null,"PeerRev":1,"VlizCoreFlag":1,"WoScode":null,"VABBcode":null,"OpenAcc":0},"refs":null,"anarec":{"AnaID":3438,"PubliDate":1968,"Pagination":"302-320","XtraPublOfAnaID":null,"ISBN":null,"Volume":"17","Issue":null,"BRefMon":null,"BRefMonRR":null,"BRefXtra":null,"BRefXtraRR":null,"SerBRefID":64660,"SerRR":"Helgoländer Wissenschaftliche Meeresuntersuchungen. Biologische Anstalt Helgoland: Hamburg.  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