Haku
Viitteet 1-10 / 27
Rapport nr 108: Utvecklande av monitoring för trådformiga alger
(Åbo Akademi, Husö biologiska station, 2002)
Occurrence of filamentous algae in shallow soft-bottom bays around Aland is/ands was studied from July to September 2002. The ground-truth studies, carried out in nine /ocalities, included surveys of macrophyte coverage, ...
Rapport nr 122: Kvalitetsfaktorer för EU:s vattendirektiv i kustområden: bottenfauna. Jämförelse av olika sållstorlek och provtagningsdesign i beskrivandet av bottenfaunasamhällen
(Åbo Akademi, Husö biologiska station, 2009)
EU Water Frame Directive states that all coastal water bodies have to achieve good ecological status by the year 2015. The purpose of this study was to compare the usability of different methods and sampling strategies ...
Rapport nr 112: Kartering av vattenlevande makrofyter längs två inner-ytterskärgårdsgradienter på nordvästra och sydöstra Åland
(Åbo Akademi, Husö biologiska station, 2005)
As assigned by the Provincial Government of Atand Islands, a dive mapping of aquatic macrophytes (macroscopic algae and plants) was carried out in the archipe/ago of Aland Islands. The survey was done a/ong two gradients ...
Rapport nr 110: Återhämtning av vattenmiljön efter avvecklandet av fiskodlingar (Andersö och Järsö)
(Åbo Akademi, Husö biologiska station, 2004)
A study concerning the recovery of the water environment at two former fish farm sites, Andersö and Järsö, in the NW Aland archipelago, was performed in the summer 2003. The environmental effects of the two fish farms have ...
Rapport nr 114: Fisksamhällets tillstånd på Kökar, SE Åland
(Åbo Akademi, Husö biologiska station, 2005)
A first attempt to a holistic survey of fish fauna in the Käkar area, Aland, was done during summer 2005. Local fishermen have for a /anger time complained about decreased fish catches, and thus this investigation was ...
Rapport nr 113: Förekomst av adult fisk i grunda havsvikar på Åland
(Åbo Akademi, Husö biologiska station, 2005)
Six shallow bays in the archipe/ago of NW and East Atand were studied on fish and fish migratory parameters on five occasions during late spring and summer (4-9.5, 23-28.5, 18-22. 7, 2-8.8 , 16- 19.8, 2004). The results ...
Rapport nr 116: Kartering av fiskbestånd på Föglö, SE Åland
(Åbo Akademi, Husö biologiska station, 2007)
In the summer of 2006 Föglö was investigated as the second survey area in the long term project of fish stock survey on Åland. Seining for juvenile fish and adult smallsized fish species were performed on Föglö and in ...
Rapport nr 115: Testning av parametrar (klorofyll-a och djuputbredning av blåstång, Fucus vesiculosus) för beskrivning av biologiska kvalitetsfaktorer enligt EU:s ramdirektiv för vatten
(Åbo Akademi, Husö biologiska station, 2006)
In association ta the EU Water Framework Directive (WFO) all coastal areas in member countries are characterized and classified. This cancerns also the Aland Islands. The WFD gives a possibility to describe the Biological ...
Rapport nr 107: Undersökning av miljöeffekter av fiskodlingar (Andersö och Järsö) under avveckling
(Åbo Akademi, Husö biologiska station, 2002)
A study on zoobenthos, hydrography, sediment and periphyton growth was conducted at two fish farm sites under closure in the Åland archipe/ago June-September 2002. The aim of the study was to collect base fine data for ...
Rapport nr 104: Användning av perifytonfällor för bedömning av fiskodlingars eutrofierande effekt samt undersökning av nya kontroll- och referenspunkter för bottenfaunaprovtagning vid miljökontrollprogrammet för fiskodling på Åland
(Åbo Akademi, Husö biologiska station, 2002)
Use of periphyton growth plates for monitoring purposes was studied in the summer of 2001
around five fish farms in the Aland archipelago. The gowth plates were incubated for two weeks
and growth of periphyton was ...