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Titolo:
THE EARLY STAGES OF MARINE BIOFOULING AND ITS EFFECT ON 2 TYPES OF OPTICAL SENSORS
Autore:
KERR A; COWLING MJ; BEVERIDGE CM; SMITH MJ; PARR ACS; HEAD RM; DAVENPORT J; HODGKIESS T;
Indirizzi:
UNIV GLASGOW,GLASGOW MARINE TECHNOL CTR GLASGOW G12 8QQ LANARK SCOTLAND
Titolo Testata:
Environment international
fascicolo: 3, volume: 24, anno: 1998,
pagine: 331 - 343
SICI:
0160-4120(1998)24:3<331:TESOMB>2.0.ZU;2-K
Fonte:
ISI
Lingua:
ENG
Soggetto:
BIOFILMS;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Citazioni:
19
Recensione:
Indirizzi per estratti:
Citazione:
A. Kerr et al., "THE EARLY STAGES OF MARINE BIOFOULING AND ITS EFFECT ON 2 TYPES OF OPTICAL SENSORS", Environment international, 24(3), 1998, pp. 331-343

Abstract

This paper records the results of an investigation into the effects of biofouling on optical marine sensors and the organisms responsible for the deterioration in sensor accuracy. Two kinds of commercial sub-surface optical marine sensor, commonly used to measure water quality, were operated in a natural marine environment and allowed to foul while measurements of the actual conditions were made daily using clean instruments. A number of glass and acrylic coupons were placed in the same environment and were removed at intervals throughout the trial. These coupons were examined and the biological population quantified. Deterioration in the optical properties of the coupons was measured usingimage analysis and UV-visible spectroscopy. The results from the coupons were compared with the results from the commercial instruments. Itwas observed that the major deterioration in instrumental accuracy occurred when a bacterial population exceeding 10(5)/mm(2) was found on the coupons. The algal population had little effect on the instrumentsover this time period. The acrylic coupons supported a lower fouling population, apparently due to the increased solubility of acrylic in seawater. The two optical techniques returned similar patterns of results for the surface area fouled, although the numerical values returnedby each technique were different. Neither of these two techniques returned values directly comparable with the deterioration in accuracy ofthe commercial instruments. The trial took place on the Isle of Cumbrae in the Firth of Clyde on the west coast of Scotland, U.K. (C)1998 Elsevier Science Ltd.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 24/10/20 alle ore 08:23:27