Assessment of cyanoprokaryote blooms and of cyanotoxins in Bulgaria in a 15-years period (2000-2015)

Maya P. Stoyneva-Gärtner, Jean Pierre Descy, Adrien Latli, Blagoy A. Uzunov, Vera T. Pavlova, Zlatka Bratanova, Pavel Babica, Blahoslav Maršálek, Jussi Meriluoto, Lisa Spoof

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

The scientific and public awareness of hazardous photosynthetic prokaryotes (cyanobacteria/cyanoprokaryotes) and especially the contamination of drinking-water reservoirs with cyanotoxins is world-wide increasing. Recently much more attention has been paid to the events and results of mass proliferation of these toxic organisms even in South-East European countries in spite of the fact that, as a rule, they are not controlled by national legislation. The present paper presents a summary of results of such studies carried out in summer-autumn periods of the last 15 years (2000-2015) in Bulgarian water bodies differing by location, morphometry and trophic status, incl. drinking-water reservoirs, recreational lakes and sites of nature conservation importance. A multivariate analysis allowed to outline the distribution patterns and environmental drivers of the planktonic cyanoprokaryote assemblages in relation with the available data on the water bodies, highlighting species composition and abundance of the main taxa, including potentially toxic species. Samples analysis by HPLC-DAD and/or LC/MS, ELISA and in vitro cytotoxicity tests allowed detection of microcystins, nodularins and saxitoxins. Toxin concentration ranged between 0.1 and 26.5 μg L–1 in water samples and between 10.9 and 1070 μg g–1 (d.w.) in concentrated (net) samples. Despite the fact that microcystins were not found in all studied water bodies and that the recorded levels were still lower in comparison with some other European countries, the fact that cyanotoxins were detected in 16 water bodies (incl. 3 drinking-water reservoirs) could serve as an alert for the need of recognition of cyanotoxins as a new health risk factor in the country. Therefore, permanent monitoring with identification of toxins in water bodies at risk and activities for limitation and control of toxic blooms are urgently needed, in combination with increase of the attention to the effects of cyanotoxins on both human health and health of aquatic ecosystems in Bulgaria.

langue originaleAnglais
Pages (de - à)131-152
Nombre de pages22
journalAdvances in Oceanography and Limnology
Volume8
Numéro de publication1
Les DOIs
étatPublié - 1 janv. 2017

Empreinte digitale

cyanobacterial toxins
Bulgaria
body water
algal bloom
water reservoirs
drinking water
microcystins
toxin
toxic organism
toxins
nodularin
saxitoxins
trophic status
prokaryote
morphometry
natural resources conservation
prokaryotic cells
nature conservation
risk factor
multivariate analysis

Citer ceci

Stoyneva-Gärtner, Maya P. ; Descy, Jean Pierre ; Latli, Adrien ; Uzunov, Blagoy A. ; Pavlova, Vera T. ; Bratanova, Zlatka ; Babica, Pavel ; Maršálek, Blahoslav ; Meriluoto, Jussi ; Spoof, Lisa. / Assessment of cyanoprokaryote blooms and of cyanotoxins in Bulgaria in a 15-years period (2000-2015). Dans: Advances in Oceanography and Limnology. 2017 ; Vol 8, Numéro 1. p. 131-152.
@article{58653670f8de43f9a5c31dd61ddef4e4,
title = "Assessment of cyanoprokaryote blooms and of cyanotoxins in Bulgaria in a 15-years period (2000-2015)",
abstract = "The scientific and public awareness of hazardous photosynthetic prokaryotes (cyanobacteria/cyanoprokaryotes) and especially the contamination of drinking-water reservoirs with cyanotoxins is world-wide increasing. Recently much more attention has been paid to the events and results of mass proliferation of these toxic organisms even in South-East European countries in spite of the fact that, as a rule, they are not controlled by national legislation. The present paper presents a summary of results of such studies carried out in summer-autumn periods of the last 15 years (2000-2015) in Bulgarian water bodies differing by location, morphometry and trophic status, incl. drinking-water reservoirs, recreational lakes and sites of nature conservation importance. A multivariate analysis allowed to outline the distribution patterns and environmental drivers of the planktonic cyanoprokaryote assemblages in relation with the available data on the water bodies, highlighting species composition and abundance of the main taxa, including potentially toxic species. Samples analysis by HPLC-DAD and/or LC/MS, ELISA and in vitro cytotoxicity tests allowed detection of microcystins, nodularins and saxitoxins. Toxin concentration ranged between 0.1 and 26.5 μg L–1 in water samples and between 10.9 and 1070 μg g–1 (d.w.) in concentrated (net) samples. Despite the fact that microcystins were not found in all studied water bodies and that the recorded levels were still lower in comparison with some other European countries, the fact that cyanotoxins were detected in 16 water bodies (incl. 3 drinking-water reservoirs) could serve as an alert for the need of recognition of cyanotoxins as a new health risk factor in the country. Therefore, permanent monitoring with identification of toxins in water bodies at risk and activities for limitation and control of toxic blooms are urgently needed, in combination with increase of the attention to the effects of cyanotoxins on both human health and health of aquatic ecosystems in Bulgaria.",
keywords = "Health risk, Lakes, Microcystins, Nodularins, Reservoirs, Saxitoxins",
author = "Stoyneva-G{\"a}rtner, {Maya P.} and Descy, {Jean Pierre} and Adrien Latli and Uzunov, {Blagoy A.} and Pavlova, {Vera T.} and Zlatka Bratanova and Pavel Babica and Blahoslav Marš{\'a}lek and Jussi Meriluoto and Lisa Spoof",
year = "2017",
month = "1",
day = "1",
doi = "10.4081/aiol.2017.6320",
language = "English",
volume = "8",
pages = "131--152",
journal = "Advances in Oceanography and Limnology",
issn = "1947-5721",
publisher = "PagePress",
number = "1",

}

Stoyneva-Gärtner, MP, Descy, JP, Latli, A, Uzunov, BA, Pavlova, VT, Bratanova, Z, Babica, P, Maršálek, B, Meriluoto, J & Spoof, L 2017, 'Assessment of cyanoprokaryote blooms and of cyanotoxins in Bulgaria in a 15-years period (2000-2015)', Advances in Oceanography and Limnology, VOL. 8, Numéro 1, p. 131-152. https://doi.org/10.4081/aiol.2017.6320

Assessment of cyanoprokaryote blooms and of cyanotoxins in Bulgaria in a 15-years period (2000-2015). / Stoyneva-Gärtner, Maya P.; Descy, Jean Pierre; Latli, Adrien; Uzunov, Blagoy A.; Pavlova, Vera T.; Bratanova, Zlatka; Babica, Pavel; Maršálek, Blahoslav; Meriluoto, Jussi; Spoof, Lisa.

Dans: Advances in Oceanography and Limnology, Vol 8, Numéro 1, 01.01.2017, p. 131-152.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Assessment of cyanoprokaryote blooms and of cyanotoxins in Bulgaria in a 15-years period (2000-2015)

AU - Stoyneva-Gärtner, Maya P.

AU - Descy, Jean Pierre

AU - Latli, Adrien

AU - Uzunov, Blagoy A.

AU - Pavlova, Vera T.

AU - Bratanova, Zlatka

AU - Babica, Pavel

AU - Maršálek, Blahoslav

AU - Meriluoto, Jussi

AU - Spoof, Lisa

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The scientific and public awareness of hazardous photosynthetic prokaryotes (cyanobacteria/cyanoprokaryotes) and especially the contamination of drinking-water reservoirs with cyanotoxins is world-wide increasing. Recently much more attention has been paid to the events and results of mass proliferation of these toxic organisms even in South-East European countries in spite of the fact that, as a rule, they are not controlled by national legislation. The present paper presents a summary of results of such studies carried out in summer-autumn periods of the last 15 years (2000-2015) in Bulgarian water bodies differing by location, morphometry and trophic status, incl. drinking-water reservoirs, recreational lakes and sites of nature conservation importance. A multivariate analysis allowed to outline the distribution patterns and environmental drivers of the planktonic cyanoprokaryote assemblages in relation with the available data on the water bodies, highlighting species composition and abundance of the main taxa, including potentially toxic species. Samples analysis by HPLC-DAD and/or LC/MS, ELISA and in vitro cytotoxicity tests allowed detection of microcystins, nodularins and saxitoxins. Toxin concentration ranged between 0.1 and 26.5 μg L–1 in water samples and between 10.9 and 1070 μg g–1 (d.w.) in concentrated (net) samples. Despite the fact that microcystins were not found in all studied water bodies and that the recorded levels were still lower in comparison with some other European countries, the fact that cyanotoxins were detected in 16 water bodies (incl. 3 drinking-water reservoirs) could serve as an alert for the need of recognition of cyanotoxins as a new health risk factor in the country. Therefore, permanent monitoring with identification of toxins in water bodies at risk and activities for limitation and control of toxic blooms are urgently needed, in combination with increase of the attention to the effects of cyanotoxins on both human health and health of aquatic ecosystems in Bulgaria.

AB - The scientific and public awareness of hazardous photosynthetic prokaryotes (cyanobacteria/cyanoprokaryotes) and especially the contamination of drinking-water reservoirs with cyanotoxins is world-wide increasing. Recently much more attention has been paid to the events and results of mass proliferation of these toxic organisms even in South-East European countries in spite of the fact that, as a rule, they are not controlled by national legislation. The present paper presents a summary of results of such studies carried out in summer-autumn periods of the last 15 years (2000-2015) in Bulgarian water bodies differing by location, morphometry and trophic status, incl. drinking-water reservoirs, recreational lakes and sites of nature conservation importance. A multivariate analysis allowed to outline the distribution patterns and environmental drivers of the planktonic cyanoprokaryote assemblages in relation with the available data on the water bodies, highlighting species composition and abundance of the main taxa, including potentially toxic species. Samples analysis by HPLC-DAD and/or LC/MS, ELISA and in vitro cytotoxicity tests allowed detection of microcystins, nodularins and saxitoxins. Toxin concentration ranged between 0.1 and 26.5 μg L–1 in water samples and between 10.9 and 1070 μg g–1 (d.w.) in concentrated (net) samples. Despite the fact that microcystins were not found in all studied water bodies and that the recorded levels were still lower in comparison with some other European countries, the fact that cyanotoxins were detected in 16 water bodies (incl. 3 drinking-water reservoirs) could serve as an alert for the need of recognition of cyanotoxins as a new health risk factor in the country. Therefore, permanent monitoring with identification of toxins in water bodies at risk and activities for limitation and control of toxic blooms are urgently needed, in combination with increase of the attention to the effects of cyanotoxins on both human health and health of aquatic ecosystems in Bulgaria.

KW - Health risk

KW - Lakes

KW - Microcystins

KW - Nodularins

KW - Reservoirs

KW - Saxitoxins

UR - http://www.scopus.com/inward/record.url?scp=85047204274&partnerID=8YFLogxK

U2 - 10.4081/aiol.2017.6320

DO - 10.4081/aiol.2017.6320

M3 - Article

AN - SCOPUS:85047204274

VL - 8

SP - 131

EP - 152

JO - Advances in Oceanography and Limnology

JF - Advances in Oceanography and Limnology

SN - 1947-5721

IS - 1

ER -