Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in

The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting t...
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Autor*in:	Hudon, C. [verfasserIn] Gagnon, P. [verfasserIn] Poirier Larabie, S. [verfasserIn] Gagnon, C. [verfasserIn] Lajeunesse, A. [verfasserIn] Lachapelle, M. [verfasserIn] Quilliam, M.A. [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2016

Schlagwörter:	Benthic cyanobacterial mats Cyanotoxins PSP toxins Fluvial lakes St. Lawrence River

Übergeordnetes Werk:	Enthalten in: Harmful algae - Amsterdam [u.a.] : Elsevier Science, 2002, 57, Seite 69-77
Übergeordnetes Werk:	volume:57 ; pages:69-77

DOI / URN:	10.1016/j.hal.2016.06.001

Katalog-ID:	ELV000340766

Internformat


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520			\|a The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system.
650		4	\|a Benthic cyanobacterial mats
650		4	\|a Cyanotoxins
650		4	\|a PSP toxins
650		4	\|a Fluvial lakes
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700	1		\|a Poirier Larabie, S. \|e verfasserin \|4 aut
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700	1		\|a Lajeunesse, A. \|e verfasserin \|4 aut
700	1		\|a Lachapelle, M. \|e verfasserin \|4 aut
700	1		\|a Quilliam, M.A. \|e verfasserin \|4 aut
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912			\|a GBV_ILN_2004
912			\|a GBV_ILN_2005
912			\|a GBV_ILN_2011
912			\|a GBV_ILN_2014
912			\|a GBV_ILN_2015
912			\|a GBV_ILN_2020
912			\|a GBV_ILN_2021
912			\|a GBV_ILN_2025
912			\|a GBV_ILN_2027
912			\|a GBV_ILN_2034
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912			\|a GBV_ILN_2507
912			\|a GBV_ILN_2522
912			\|a GBV_ILN_4035
912			\|a GBV_ILN_4037
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912			\|a GBV_ILN_4125
912			\|a GBV_ILN_4126
912			\|a GBV_ILN_4242
912			\|a GBV_ILN_4251
912			\|a GBV_ILN_4305
912			\|a GBV_ILN_4313
912			\|a GBV_ILN_4323
912			\|a GBV_ILN_4324
912			\|a GBV_ILN_4325
912			\|a GBV_ILN_4326
912			\|a GBV_ILN_4333
912			\|a GBV_ILN_4334
912			\|a GBV_ILN_4335
912			\|a GBV_ILN_4338
912			\|a GBV_ILN_4393
951			\|a AR
952			\|d 57 \|h 69-77

Indexfelder

author_variant	c h ch p g pg l s p ls lsp c g cg a l al m l ml m q mq
matchkey_str	article:18781470:2016----::ptaadeprlaitosfsxtx
hierarchy_sort_str	2016
publishDate	2016
allfields	10.1016/j.hal.2016.06.001 doi (DE-627)ELV000340766 (ELSEVIER)S1568-9883(16)30114-7 DE-627 ger DE-627 rda eng 580 DE-600 BIODIV DE-30 fid Hudon, C. verfasserin aut Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in 2016 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system. Benthic cyanobacterial mats Cyanotoxins PSP toxins Fluvial lakes St. Lawrence River Gagnon, P. verfasserin aut Poirier Larabie, S. verfasserin aut Gagnon, C. verfasserin aut Lajeunesse, A. verfasserin aut Lachapelle, M. verfasserin aut Quilliam, M.A. verfasserin aut Enthalten in Harmful algae Amsterdam [u.a.] : Elsevier Science, 2002 57, Seite 69-77 Online-Ressource (DE-627)362755612 (DE-600)2099362-6 (DE-576)259272566 1878-1470 nnns volume:57 pages:69-77 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 57 69-77
spelling	10.1016/j.hal.2016.06.001 doi (DE-627)ELV000340766 (ELSEVIER)S1568-9883(16)30114-7 DE-627 ger DE-627 rda eng 580 DE-600 BIODIV DE-30 fid Hudon, C. verfasserin aut Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in 2016 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system. Benthic cyanobacterial mats Cyanotoxins PSP toxins Fluvial lakes St. Lawrence River Gagnon, P. verfasserin aut Poirier Larabie, S. verfasserin aut Gagnon, C. verfasserin aut Lajeunesse, A. verfasserin aut Lachapelle, M. verfasserin aut Quilliam, M.A. verfasserin aut Enthalten in Harmful algae Amsterdam [u.a.] : Elsevier Science, 2002 57, Seite 69-77 Online-Ressource (DE-627)362755612 (DE-600)2099362-6 (DE-576)259272566 1878-1470 nnns volume:57 pages:69-77 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 57 69-77
allfields_unstemmed	10.1016/j.hal.2016.06.001 doi (DE-627)ELV000340766 (ELSEVIER)S1568-9883(16)30114-7 DE-627 ger DE-627 rda eng 580 DE-600 BIODIV DE-30 fid Hudon, C. verfasserin aut Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in 2016 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system. Benthic cyanobacterial mats Cyanotoxins PSP toxins Fluvial lakes St. Lawrence River Gagnon, P. verfasserin aut Poirier Larabie, S. verfasserin aut Gagnon, C. verfasserin aut Lajeunesse, A. verfasserin aut Lachapelle, M. verfasserin aut Quilliam, M.A. verfasserin aut Enthalten in Harmful algae Amsterdam [u.a.] : Elsevier Science, 2002 57, Seite 69-77 Online-Ressource (DE-627)362755612 (DE-600)2099362-6 (DE-576)259272566 1878-1470 nnns volume:57 pages:69-77 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 57 69-77
allfieldsGer	10.1016/j.hal.2016.06.001 doi (DE-627)ELV000340766 (ELSEVIER)S1568-9883(16)30114-7 DE-627 ger DE-627 rda eng 580 DE-600 BIODIV DE-30 fid Hudon, C. verfasserin aut Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in 2016 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system. Benthic cyanobacterial mats Cyanotoxins PSP toxins Fluvial lakes St. Lawrence River Gagnon, P. verfasserin aut Poirier Larabie, S. verfasserin aut Gagnon, C. verfasserin aut Lajeunesse, A. verfasserin aut Lachapelle, M. verfasserin aut Quilliam, M.A. verfasserin aut Enthalten in Harmful algae Amsterdam [u.a.] : Elsevier Science, 2002 57, Seite 69-77 Online-Ressource (DE-627)362755612 (DE-600)2099362-6 (DE-576)259272566 1878-1470 nnns volume:57 pages:69-77 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 57 69-77
allfieldsSound	10.1016/j.hal.2016.06.001 doi (DE-627)ELV000340766 (ELSEVIER)S1568-9883(16)30114-7 DE-627 ger DE-627 rda eng 580 DE-600 BIODIV DE-30 fid Hudon, C. verfasserin aut Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in 2016 nicht spezifiziert zzz rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system. Benthic cyanobacterial mats Cyanotoxins PSP toxins Fluvial lakes St. Lawrence River Gagnon, P. verfasserin aut Poirier Larabie, S. verfasserin aut Gagnon, C. verfasserin aut Lajeunesse, A. verfasserin aut Lachapelle, M. verfasserin aut Quilliam, M.A. verfasserin aut Enthalten in Harmful algae Amsterdam [u.a.] : Elsevier Science, 2002 57, Seite 69-77 Online-Ressource (DE-627)362755612 (DE-600)2099362-6 (DE-576)259272566 1878-1470 nnns volume:57 pages:69-77 GBV_USEFLAG_U SYSFLAG_U GBV_ELV FID-BIODIV SSG-OLC-PHA GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_90 GBV_ILN_95 GBV_ILN_100 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_224 GBV_ILN_370 GBV_ILN_602 GBV_ILN_702 GBV_ILN_2003 GBV_ILN_2004 GBV_ILN_2005 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2027 GBV_ILN_2034 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2056 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2065 GBV_ILN_2068 GBV_ILN_2111 GBV_ILN_2112 GBV_ILN_2113 GBV_ILN_2118 GBV_ILN_2122 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2147 GBV_ILN_2148 GBV_ILN_2152 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2507 GBV_ILN_2522 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4242 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4313 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4334 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4393 AR 57 69-77
language	English
source	Enthalten in Harmful algae 57, Seite 69-77 volume:57 pages:69-77
sourceStr	Enthalten in Harmful algae 57, Seite 69-77 volume:57 pages:69-77
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Benthic cyanobacterial mats Cyanotoxins PSP toxins Fluvial lakes St. Lawrence River
dewey-raw	580
isfreeaccess_bool	false
container_title	Harmful algae
authorswithroles_txt_mv	Hudon, C. @@aut@@ Gagnon, P. @@aut@@ Poirier Larabie, S. @@aut@@ Gagnon, C. @@aut@@ Lajeunesse, A. @@aut@@ Lachapelle, M. @@aut@@ Quilliam, M.A. @@aut@@
publishDateDaySort_date	2016-01-01T00:00:00Z
hierarchy_top_id	362755612
dewey-sort	3580
id	ELV000340766
language_de	englisch
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The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. 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spellingShingle	Hudon, C. ddc 580 fid BIODIV misc Benthic cyanobacterial mats misc Cyanotoxins misc PSP toxins misc Fluvial lakes misc St. Lawrence River Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in
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topic_title	580 DE-600 BIODIV DE-30 fid Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in Benthic cyanobacterial mats Cyanotoxins PSP toxins Fluvial lakes St. Lawrence River
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title	Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in
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title_full	Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in
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title_sort	spatial and temporal variations of a saxitoxin analogue (lwtx-1) in
title_auth	Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in
abstract	The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system.
abstractGer	The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system.
abstract_unstemmed	The concentration of the saxitoxin analogue LWTX-1 was quantified in samples of the benthic filamentous cyanobacterium Lyngbya wollei (Farlow ex Gomont) Speziale and Dyck collected in two fluvial lakes of the St. Lawrence River (Canada) over the 2006–2013 period. The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system.
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title_short	Spatial and temporal variations of a saxitoxin analogue (LWTX-1) in
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author2	Gagnon, P. Poirier Larabie, S. Gagnon, C. Lajeunesse, A. Lachapelle, M. Quilliam, M.A.
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up_date	2024-07-06T17:38:14.344Z
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The study was aimed at documenting the spatial (between fluvial lakes, between sites within each lake) and temporal (inter-annual, monthly) variations of toxin concentration in relation with hydrological (water level), physical (water temperature, conductivity, transparency), chemical (nutrients in overlying water) and biological (L. wollei biomass and mat condition) characteristics. Toxin concentration was hypothesized to vary seasonally with biomass accumulation and environmental conditions. Toxin concentrations measured in Lake Saint-Louis (51±40μg LWTX-1g−1 DM, N =29 days in 2007, 2009–2011) were double those in Lake Saint-Pierre (25±31μg LWTX-1g−1 DM, N =26 days in 2006–2008, 2012–2013); however, August 2007 measurements taken from both lakes did not differ significantly. Ten of the twelve highest values (>100μg LWTX-1g−1 DM) were obtained from Lake Saint-Louis, between April and October in 2007, 2010 or 2011. Under ice samples showed intermediate concentrations of LWTX-1 (42±9μg LWTX-1g−1 DM, N =2). Concentrations of LWTX-1 were positively correlated with Secchi depth (r =0.59, p <0.001), L. wollei biomass (Spearman r =0.31, p <0.01) and %N in filaments (r =0.48, p <0.001), suggesting toxin production was linked to mat growth and metabolism rather than water quality. Although LWTX-1 has been reported to have a low toxicity, monitoring of L. wollei abundance is required to assess the environmental and human health risks posed by this taxon in the St. Lawrence - Great Lakes system.</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Benthic cyanobacterial mats</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Cyanotoxins</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">PSP toxins</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">Fluvial lakes</subfield></datafield><datafield tag="650" ind1=" " ind2="4"><subfield code="a">St. Lawrence River</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gagnon, P.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Poirier Larabie, S.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Gagnon, C.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lajeunesse, A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Lachapelle, M.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">Quilliam, M.A.</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Harmful algae</subfield><subfield code="d">Amsterdam [u.a.] : Elsevier Science, 2002</subfield><subfield code="g">57, Seite 69-77</subfield><subfield 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