Bioaccumulation of PSTs produced by Alexandrium ostenfeldii in the northern Baltic Sea

Setälä, Outi; Lehtinen, Sari; Kremp, Anke; Hakanen, Päivi; Kankaanpää, Harri; Erler, Katrin; Suikkanen, Sanna

doi:10.1007/s10750-013-1762-8

Cited by 16 publications

(5 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Blooms of the toxic Alexandrium species can have a negative influence on higher trophic levels directly (Sopanen et al, 2011) or through toxin accumulation and transfer in the food web (e.g. Jester et al, 2009;Setälä et al, 2014). Alexandrium ostenfeldii (Paulsen) Balech and Tangen, 1985, is a globally distributed marine planktonic dinoflagellate (e.g.…”

Section: Introductionmentioning

confidence: 99%

Genetic relatedness of a new Japanese isolates of Alexandrium ostenfeldii bloom population with global isolates

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Genetic relatedness of a new Japanese isolates of Alexandrium ostenfeldii bloom population with global isolates

et al. 2019

Self Cite

View full text Add to dashboard Cite

show abstract

“…rarely occur in the Black Sea, although occasional blooms of A. monilatum and A. ostenfeldii have been observed [ 16 , 57 ]. It is worth noting that A. ostenfeldii form dense blooms and produce PSP toxins in brackish areas of the Baltic Sea [ 58 , 59 ] and of the Netherlands [ 60 ], revealing the toxigenic nature of strains adapted to low salinity.…”

Section: Discussionmentioning

confidence: 99%

New Knowledge on Distribution and Abundance of Toxic Microalgal Species and Related Toxins in the Northwestern Black Sea

Dzhembekova

Moncheva

Slabakova

et al. 2022

Toxins

View full text Add to dashboard Cite

Numerous potentially toxic plankton species commonly occur in the Black Sea, and phycotoxins have been reported. However, the taxonomy, phycotoxin profiles, and distribution of harmful microalgae in the basin are still understudied. An integrated microscopic (light microscopy) and molecular (18S rRNA gene metabarcoding and qPCR) approach complemented with toxin analysis was applied at 41 stations in the northwestern part of the Black Sea for better taxonomic coverage and toxin profiling in natural populations. The combined dataset included 20 potentially toxic species, some of which (Dinophysis acuminata, Dinophysis acuta, Gonyaulax spinifera, and Karlodinium veneficum) were detected in over 95% of the stations. In parallel, pectenotoxins (PTX-2 as a major toxin) were registered in all samples, and yessotoxins were present at most of the sampling points. PTX-1 and PTX-13, as well as some YTX variants, were recorded for the first time in the basin. A positive correlation was found between the cell abundance of Dinophysis acuta and pectenotoxins, and between Lingulodinium polyedra and Protoceratium reticulatum and yessotoxins. Toxic microalgae and toxin variant abundance and spatial distribution was associated with environmental parameters. Despite the low levels of the identified phycotoxins and their low oral toxicity, chronic toxic exposure could represent an ecosystem and human health hazard.

show abstract

“…At the end of their bloom periods, the two species enter a resting stage in which the cells settle to the sea floor, where they form benthic seed banks (Kremp et al, 2009;Godhe and Härnstöm, 2010). Resting stages that accumulate in the inner parts of Puck Bay not only inoculate new local blooms but also facilitate the retention and adaptation of local populations (Sundqvist et al, 2018), which in the case of toxic, bloom-forming A. ostenfeldii will adversely affect both co-occurring biota and public health (Setälä et al, 2014).…”

Section: Impact Of Lrt On Genetic Differentiationmentioning

confidence: 99%

Lagrangian Residence Time in the Bay of Gdańsk, Baltic Sea

et al. 2019

Self Cite

View full text Add to dashboard Cite

The impact of synoptic scale and mesoscale variability on the Lagrangian residence time (LRT) of the surface water in the Bay of Gdańsk was investigated using the results from an eddy-resolving model. The computed LRT of 53-60 days was up to four times longer than the estimated flushing time reported by Witek et al. (2003). The highest residence times were those of Puck Bay and near the coast, shallower than 50 m water depth, especially during the winter. These sites also had the highest annual mean in LRT. During the summer, when the level of biological activity is high, the LRT distribution was very heterogeneous and patchy, possibly due to the dynamics of varying eddy field and to variable wind forcing. Long-term run tracking of the inflowing water from the Vistula River (VR) showed a broad spectrum of tracer distribution. The potential impact of a much higher LRT on the near-coastal nitrogen cycle, coastal filter function and genetic differentiation is discussed, and the consequences for coastal zone management are considered. Since residence time is the most important factor regulating nutrient cycling, the incorporation of residence time into the Marine Strategy Framework Directive descriptors would result in an improved, unbiased evaluation of good environmental status.

show abstract

Bioaccumulation of PSTs produced by Alexandrium ostenfeldii in the northern Baltic Sea

Cited by 16 publications

References 30 publications

Genetic relatedness of a new Japanese isolates of Alexandrium ostenfeldii bloom population with global isolates

Genetic relatedness of a new Japanese isolates of Alexandrium ostenfeldii bloom population with global isolates

New Knowledge on Distribution and Abundance of Toxic Microalgal Species and Related Toxins in the Northwestern Black Sea

Lagrangian Residence Time in the Bay of Gdańsk, Baltic Sea

Contact Info

Product

Resources

About