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Rapport nr 76: Undersökning av vattenkvalitet (år 1989) och bottenfauna (år 1990) vid Ålands forell i Järsö, Lemland
(Åbo Akademi, Husö biologiska station, 1990)Husö biological station has carried out investigations of the brakish water environment at the fish farm Ålands Forell on Åland (N. Baltic Sea) since its beginning year 1981. Water quality and the organic content of sediment ... -
Rapport nr 75: Bottenfauna och hydrografi i den åländska skärgården 1972-1990 : Mariehamn och Eckerö 1990 samt en totalanalys av den faståländska skärgården i relation till eutrofiering
(Åbo Akademi, Husö biologiska station, 1990) -
Rapport nr 77: Vattenkvalitet och bottenfauna kring tre åländska fiskodlingar sommaren 1990
(1990)Areas adjacent to three fish farms in the Åland archipelago, N. Baltic Sea, were investigated with regard to Secchi depth, oxygen, total phosphorus and nitrogen, chlorofyll-a content, organic content of the sediment and ... -
Rapport 78: Undersökning av Boda-, Ivarskärs- och Svartsmarafjärden samt sjön Vargsundet på NW Åland sommaren 1990: hydrografi och vattenkvalitet
(1990)Hydrography and water quality were investigated in an archipelago area (Boda-, lvarskärs- and Svartsmarafjärden) in NW Åland in the summer of 1990. Temperature, conductivity, pH, Secchi depth, spatial distribution of ... -
Rapport nr 81: Den högre brackvattenvegetationen I nordvästra Åland 1991, samt en jämförelse av läget 1963 och 1965
(Åbo Akademi, Husö biologiska station, 1992)A survey of phytobenthos was carried out in 1991 in NW Åland, N. Baltic Sea. The investigation covered 35 sites along a transect from the sheltered inner-archipelago through semi-sheltered shores to unsheltered outer-archipelago ... -
Rapport nr 84: En kartering av Mariehamns stads vattenområden, samt en inventering av stränder och grunda vatten
(Åbo Akademi, Husö biologiska station, 1992)In 1992 (June-August) an investigation of the Mariehamn archipelago area (Aland, N. Baltic Sea) was done with regard to Secchi depth, pH, salinity, oxygen, total phosphorus and nitrogen, chlorofyll a content and bottom ... -
Rapport nr 80: Primärproduktion i ett åländskt skärgårdsområde
(Åbo Akademi, Husö biologiska station, 1992)Primary production was measured in an archipelago gradient (inner to outer archipelago) during spring to autumn (Maj to September) on the northwestern Åland islands, northern Baltic Sea. The gradient is almost nondisturbed ... -
Rapport nr 82: En base-line inventering av fisksamhällenas sammansättning längs en skärgårdsgradient på nordöstra Åland
(Åbo Akademi, Husö biologiska station, 1992)A base-line study of the fish communities along a gradient from the inner to the outer archipelago of NW Åland was conducted at seven stations using bentic gill nets at five sampling occasions from July to September, 1991. ... -
Rapport nr 79: Säsongsvariationer i hydrografi, näringsämnen och klorofyll a i ett åländskt skärgårdsområde
(Åbo Akademi, Husö biologiska station, 1992)Hydrography, nutrient and chlorophyll a contents were investigated in an archipelago gradient (inner to outer) during one year on the northwestern Åland Islands. The gradient possesses increasing water transparency and ... -
Rapport nr 83: Sjöfågelfaunan i ett nordväståländskt skärgårdsområde – en baslinjekartering utförd sommaren 1991
(Åbo Akademi, Husö biologiska station, 1992)The seabirds within a defined archipelago-gradient (inner, sheltered parts to open, exposed maritime zone) on NW Åland (N. Baltic Sea) was investigated from April through September 1991 in order to qualify and quantify the ... -
Rapport nr 86: Den högre vattenvegetationen i några inre havsvikar på fasta Åland 1992
(Åbo Akademi, Husö biologiska station, 1993)Phytobentos of three inner bays on the Åland Islands were surveilled in the late summer of 1992. The investigation aims at describing the present situation in these inner bays where the loading by nutrients from land may ... -
Rapport nr 85: Hydrografi, näringsämnen och klorofyll-a I tre havsvikar på fasta Åland
(Åbo Akademi, Husö biologiska station, 1993)During the summer 1992 three inner bays in the central archipelago of Åland, Northern Baltic Sea, were investigated. The three bays were all quite isolated with large draining areas. The investigated parameters were ... -
Rapport 87: En inventering av fisksamhället i tre viksystem på Åland
(Åbo Akademi, Husö biologiska station, 1993)The fish communities of three areas of sheltered bays were studied from July to September, 1992, using Swedish standard gill- nets. Area 1, in NW Åland with three stations from Orrfjärden, a large bay in the inner archipelago ... -
Rapport nr 89: Bottenfaunan och fisksamhället I Färjsundet-Lumparn området 1993
(Åbo Akademi, Husö biologiska station, 1994)In the Färjsundet - Lumparn area (earlier studied in 1971 - 1973 and in 1989) 15 stations. representing gradients from inner, sheltered bays to the open coast , were revisited in 1993 in order to get an up-to-date picture ... -
Rapport nr 88: Hydrografi, näringsämnen och klorofyll-a I Lumparns viksystem
(Åbo Akademi, Husö biologiska station, 1994)During the summer of 1993 the Lumparn-fjärd and its connecting bays in the central archepelago of Aland, Northern Baltic Sea was investigated. The northern parts of the system consists of long and narrow bays. Many of the ... -
Rapport nr 90: En översiktlig kartering av vattenvegetationen på hårdbottenlokaler i nordvästra Ålands skärgård 1994
(Åbo Akademi, Husö biologiska station, 1994)A survey of hard bottom vegetation was carried out in 1994 in NW Åland, N. Baltic Sea. The investigation covered 36 sites in three separate areas. The survey is part of a Nordic environmental programme for integrated ... -
Rapport nr 91: Bottenfauna och hydrografi i området mellan kust och öppet hav i den åländska skärgården
(Åbo Akademi, Husö biologiska station, 1994)In 1994 zoobenthos and hydrography was studied on 29 stations in the Åland archipelago. These stations which are all in the depth-range of 20 to 40 m, represent two categories: the exposed stations in the transition-zone ... -
Rapport nr 93: Vattenkvalitet och bottenfauna vid fiskodlingarna Solvik fisk, Andersö och Ålands forell, Järsö sommaren 1995
(Åbo Akademi, Husö biologiska station, 1995)Water quality and bottom fauna was investigated in June-August 1995 at the fishfarms Solvik fisk, Andersö and Ålands forell, Järsö on Åland. Husö biological station has carried out investigations at these fishfarms since ... -
Rapport nr 92: Uppföljning av växtplankton utvecklingen, med tyngdpunkt på blågrönalger i åländska vattentäkter och skärgårdsvatten sommaren 1995
(Åbo Akademi, Husö biologiska station, 1995)The phytoplankton development in drinking water reservoirs and archipelago areas on Aland was monitored in July-September 1995. Special emphasis was layed on potentially hazardous algae, especially cyanobacteria. The water ... -
Rapport nr 94: Storfjärilsfaunan på Husö biologiska station 1985-1996
(Åbo Akademi, Husö biologiska station, 1997)The macrolepidopteral fauna in the area of Husö Biological Station, Åland Islands, SW Finland, was studied by means of fight traps, bait catches and visiual observations in 1985-95. The study area is situated in the inner ...
