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Density dependent growth of the red algae Furcellaria lumbricalis and Coccotylus trancatus in the West Estonian Archipelago Sea, Northern Baltic Sea

100%

Kotta J., Paalme T., Kersen P., Martin G., Herkul K., Moller T.

Oceanologia

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2008

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tom 50

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nr 4

577-585

In an in situ experiment we evaluated the growth of the red algae Furcellaria lumbricalis and Coccotylus truncatus in the Archipelago Sea. The results showed that the growth rates of both species were similar but that growth decreased with increasing algal coverage. The effects were more pronounced for C. truncatus than for F. lumbricalis. Economic analyses aiming to establish sustainable harvesting limits for F. lumbricalis in the study area should take account of the density dependent growth of these red algae.

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Recent distribution and stock assessment of the red alga Furcellaria lumbricalis on an exposed Baltic Sea coast: combined use of field survey and modelling methods

86%

Bucas M., Daunys D., Olenin S.

Oceanologia

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2009

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tom 51

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nr 3

341-359

Recent results of field studies on the exposed coast of Lithuania were used to model the area occupied by the red alga Furcellaria lumbricalis using the Natural Neighbor interpolation technique, while linear regression was applied to estimate the species’ standing stock. The area covered by F. lumbricalis extended for 26 km along the coast between depths of 1 and 15 m. The maximum species cover in the study area ranged between 4 and 10 m depth, which is one of the widest in the Baltic Sea. The modelled area of F. lumbricalis covered 35 ± 11 km2 with a total biomass of 7554 ± 3813 t.

3

Bioaccumulation of gamma emitting radionuclides in red algae from the Baltic Sea under laboratory conditions

58%

Zalewska T., Saniewski M.

Oceanologia

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2011

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tom 53

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nr 2

The bioaccumulation ability of radionuclides 51Cr, 54Mn, 57Co, 60Co, 65Zn, 85Sr, 109Cd, 110mAg, 113Sn, 137Cs and 241Am in two red algae species from the southern Baltic Sea – Polysiphonia fucoides and Furcellaria lumbricalis – was determined under laboratory conditions. P. fucoides demonstrated better bioaccumulative properties towards most of the investigated radionuclides. As a result, P. fucoides can be recommended as a good bioindicator of radioactive environmental pollution. The bioaccumulation of radionuclides in F. lumbricalis was studied during an extended laboratory experiment. The initial extensive uptake of radioisotopes was followed by the rapid removal of cations; in general, concentrations tended to decrease with time. 137Cs displayed a different behaviour, its concentration in the algae increasing over time mainly due to its large ion radius; this is a factor that could be responsible for the stronger mechanical and chemical bonding of Cs+ and that could hamper the movement of ions in both directions.

4

The role of filamentous brown algae in the degradation of the underwater meadows the Gulf of Gdansk

44%

Kruk-Dowgiallo L.

Oceanological Studies

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1996

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tom 25

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nr 1-2

Ograniczanie wyników

3 Oceanologia

1 Oceanological Studies

1 Bucas M.

1 Daunys D.

1 Herkul K.

1 Kersen P.

1 Kotta J.

1 Kruk-Dowgiallo L.

1 Martin G.

1 Moller T.

1 Olenin S.

1 Paalme T.

1 Saniewski M.

1 Zalewska T.

1 2011

1 2009

1 2008

1 1996

Density dependent growth of the red algae Furcellaria lumbricalis and Coccotylus trancatus in the West Estonian Archipelago Sea, Northern Baltic Sea

Recent distribution and stock assessment of the red alga Furcellaria lumbricalis on an exposed Baltic Sea coast: combined use of field survey and modelling methods

Bioaccumulation of gamma emitting radionuclides in red algae from the Baltic Sea under laboratory conditions

The role of filamentous brown algae in the degradation of the underwater meadows the Gulf of Gdansk