Cyanophyta

7/17/2019 Cyanophyta

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Cyanophyta

CYANOPHYTA (CYANOBACTERIA)NAME:Anabaenalemmermannii P.Richter in Lemmermann 1903

TAXONOMY: Division CYANOPHYTA (CYANOBACTERIA)Class NOSTOCOPHYCEAE (CYANOPHYCEAE)Order NOSTOCALES

HARMFUL: potentiallytoxic speciesOCCURRENCE: summerLIFE FORM: filaments with characteristic,intercalar arrangement:spherical heterocyst oval akinet spherical heterocystCELL SIZE: diameter 3,8-5,2 m;heterocyst 26 x 9 m; akinet diameter 7,6 mENVIRONMENT: T=19.520CSAMPLING DATE: July / August 2008PRESERVATION: life sample

MICROSCOPY: light microscopy


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Cyanophyta

NAME:Anabaenasp.Bory 1823 ex Bornet et Flahault 1888

TAXONOMY: Division CYANOPHYTA (CYANOBACTERIA)Class NOSTOCOPHYCEAE (CYANOPHYCEAE)

Order NOSTOCALES

HARMFUL: potentiallytoxic species ENVIRONMENT: T=17,819C; S=7 PSU; N-NH4=2228 mg*m-3

;OCCURRENCE: summer N-NO3=4060 mg*m

-3; P-PO4=2526 mg*m

-3; Si-SiO4=275283 mg*m

-3

LIFE FORM: filaments SAMPLING DATE: July / August 2007CELL SIZE: diameter 4-5 m PRESERVATION: life sample

MICROSCOPY: light microscopy MICROSCOPY: epifluorescence microscopy (WB) - blueexcitation light obtained with a combination of BP490 andEY455 excitation filters, DM500 dichroic mirror and Y455

and B460 barrier filters; this combination elicited abrilliantly red fluorescence of chlorophyll-a.


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Cyanophyta

NAME:Anabaenasp.Bory 1823 ex Bornet et Flahault 1888


HARMFUL: potentiallytoxic species ENVIRONMENT: T=19.520COCCURRENCE: summer SAMPLING DATE: July / August 2008LIFE FORM: filaments PRESERVATION: life sample


CELL SIZE: diameter 6-8 m CELL SIZE: diameter 4-6 m


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Cyanophyta

CELL SIZE: diameter 5-6 m CELL SIZE:diameter 5-6 m


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Cyanophyta

NAME:Aphanizomenon flos-aquae (Linnaeus) Ralfs ex Bornet & Flahault, 1886


HARMFUL: potentiallytoxic species ENVIRONMENT: T =4.56.7C (open sea) and 1115C (gulf);OCCURRENCE: spring seldom, summer S =7 PSU (open sea) and 6 PSU (gulf); P-PO4=0.330.38 mol*dm

-3;

and late summer - numerous N-NO3=0.110.15 (0.3) mol*dm-3

; Si-SiO4=1315 mol*dm-3

LIFE FORM:filaments, sometimes joined intolong floccules (fascicles, bunches) SAMPLING DATE:April 2008CELL SIZE: diameter 3.2-6 m PRESERVATION: life sample



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Cyanophyta

NAME:Aphanizomenon flos-aquae(Linnaeus) Ralfs ex Bornet & Flahault, 1886

TAXONOMY: Division CYANOPHYTA(CYANOBACTERIA)

Class NOSTOCOPHYCEAE(CYANOPHYCEAE)

Order NOSTOCALES

HARMFUL: potentiallytoxic speciesOCCURRENCE: spring seldom, summerand latesummer - numerousLIFE FORM: filaments, sometimes joined into long floccules(fascicles, bunches)CELL SIZE: diameter 4-5 mENVIRONMENT: T=19.520CSAMPLING DATE: July / August 2008

PRESERVATION: life sampleMICROSCOPY: light microscopy


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Cyanophyta

NAME:Aphanizomenon cf.flos-aquae (Linnaeus) Ralfs ex Bornet & Flahault, 1886


Order NOSTOCALES

HARMFUL: potentiallytoxic speciesOCCURRENCE: spring seldom, summer and late summer - numerousLIFE FORM: filaments, sometimes joined into long floccules (fascicles, bunches)CELL SIZE: diameter 3.2-6 mENVIRONMENT: T=1314C; S=67 PSU

SAMPLING DATE: June 2005PRESERVATION: LugolMICROSCOPY: light microscopy


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Cyanophyta

NAME:Aphanothece parallelliformis Cronberg 2003


Order CHROOCOCCALES

HARMFUL:OCCURRENCE: summer, late summerLIFE FORM: in coloniesCELL SIZE: 2,5-4x1 mENVIRONMENT: T=1314C; S=67 PSU



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Cyanophyta

NAME:Aphanothecoidae

TAXONOMY: Division CYANOPHYTA (CYANOBACTERIA)Class NOSTOCOPHYCEAE (CYANOPHYCEAE)Order CHROOCOCCALES

HARMFUL:OCCURRENCE: summer, late summerLIFE FORM: in colonies with cells arranged through the whole colonyCELL SIZE: 1x2 mENVIRONMENT: T=1314C; S=67 PSUSAMPLING DATE: June 2005

PRESERVATION: LugolMICROSCOPY: light microscopy


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Cyanophyta

NAME: Cyanodictyon planctonicum B. Meyer, 1994


Order CHROOCOCCALES

HARMFUL:OCCURRENCE: summer, late summerLIFE FORM: in colonies looking like a netCELL SIZE: 0,8-1x1,5 mENVIRONMENT: T=1314C; S=67 PSU



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Cyanophyta

NAME: Gomphosphaerioidea

TAXONOMY: Division CYANOPHYTA(CYANOBACTERIA)


Order CHROOCOCCALES

HARMFUL:OCCURRENCE:summer, late summerLIFE FORM: in coloniesCELL SIZE: 1,8-2,6 mENVIRONMENT: T=17,819C; S=7 PSU;N-NH4=2228 mg*m

-3; N-NO3=4060 mg*m

-3;

PO4=2526 mg*m-3; Si-SiO4=275283 mg*m

-3

SAMPLING DATE:July / August 2007

PRESERVATION: life sampleMICROSCOPY: light microscopy (LM); epifluorescencemicroscopy (WB) blue excitation light obtained witha combination of BP490 and EY455 excitation filters, DM500dichroic mirror and Y455 and B460 barrier filters; thiscombination elicited a brilliantly red fluorescence ofchlorophyll-a; (WU) blue excitation light obtained witha combination of BP330-385 excitation filter, DM400 dichroicmirror and BA420 barrier filter; this combination with CalcoFluor White M2R fluorescent brighter elicited a bluefluorescence of a background and a gelatinous envelope,and a pinky-red fluorescence of chlorophyll-a.

LM

WB

WU


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Cyanophyta

NAME: Lemmermanniellasp.Geitler, 1942


Order CHROOCOCCALES

HARMFUL:OCCURRENCE: summer, late summerLIFE FORM: colonies in form of mucilaginousspheres, simple or compound, with severalspherical subcolonies (daughter colonies); with

cells beneath the surfaceCELL SIZE: 1,5x1,6 mENVIRONMENT: T=1314C; S=67 PSUSAMPLING DATE: June 2005PRESERVATION: LugolMICROSCOPY: light microscopy


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Cyanophyta

NAME: Limnothrixcf. redekei(Goor) M.E.Meffert, 1987


Order OSCILLATORIALES

HARMFUL: potentiallytoxic speciesOCCURRENCE: summer, late summerLIFE FORM: filamentsCELL SIZE: diameter 2,6 mENVIRONMENT: T=1314C; S=67 PSUSAMPLING DATE: June 2005PRESERVATION: LugolMICROSCOPY: light microscopy

C h t


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Cyanophyta

NAME: Merismopedia tenuissima Lemmermann 1898

TAXONOMY: Division CYANOPHYTA (CYANOBACTERIA)


Order CHROOCOCCALES

HARMFUL:OCCURRENCE: summerLIFE FORM: colonies flat, tabular,rectangular, sometimes wavy orformingan aggregation of subcolonies(up to >100 cells)CELL SIZE: 0,4-2,5 mENVIRONMENT: T=17,218,4C;S=7,27,5 PSUSAMPLING DATE:August 2007PRESERVATION: life sample

MICROSCOPY: light microscopy (LM);epifluorescence microscopy (WB) - blueexcitation light obtained with a combinationof BP490 and EY455 excitation filters,DM500 dichroic mirror and Y455 and B460barrier filters; this combination elicited abrilliantly red fluorescence of chlorophyll-a.

C h t


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Cyanophyta

NAME: Nodularia spumigena Mertens ex Bornet et Flahault, 1886


Order NOSTOCALES

HARMFUL: potentiallytoxic speciesOCCURRENCE: summer, late summerLIFE FORM: filamentsCELL SIZE: diameter 8 mENVIRONMENT: T=19.520C SAMPLING DATE: July / August 2008MICROSCOPY: light microscopy PRESERVATION: life sample

SAMPLING DATE: June 2005

PRESERVATION: formalin

SAMPLING DATE: June 2005

PRESERVATION: Lugol


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Cyanophyta


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Cyanophyta

NAME: Woronichinia elorantae J. Komrek & J. Komrkov-Legnerov, 1992


Order CHROOCOCCALES

HARMFUL:OCCURRENCE: summer, late summer, autumn common to numerousLIFE FORM: in colonies, cells oval or widely obovate with homogeneous contentCELL SIZE: 1,3-1,8 x 2-2,5 mENVIRONMENT: T=1314C; S=67 PSUSAMPLING DATE: June 2005PRESERVATION: LugolMICROSCOPY: light microscopy

Cyanophyta


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Cyanophyta

NAME: Snowella sp. (cf. septentrionalis) J. Komrek & F. Hindk 1988


Order CHROOCOCCALES

HARMFUL:OCCURRENCE:spring,summer, late summer, autumn common to numerousLIFE FORM: in colonies, cells spherical with 1-2 distinct aerotopesCELL SIZE:2-2,5 mENVIRONMENT: T =4.56.7C (open sea)and 1115C (gulf); S =7 PSU (open sea)and 6 PSU (gulf); P-PO4= 0.330.38 mol*dm-3;N-NO3=0.110.15 (0.3) mol*dm

-3;

Si-SiO4= 1315 mol*dm-3

SAMPLING DATE:April 2008PRESERVATION: LugolMICROSCOPY: light microscopy

Cyanophyta


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Summer bloom of CyanophytaAnabaena lemmermannii,Anabaenaspp.,Aphanizomenon flos-aquaeand Nodularia spumigenaform

extensive blooms in brackish waters of the Baltic Sea (including Gulf of Gdask), usually near the end of July and beginning of August, when the weatheris calm and hot. All those organisms are potential toxic but toxin production depends on environmental factors. For example : Nodularia spumigena

produces its nodularin when there is an adequate quantity of nitrogen and deficit of phosphorus in sea water. Toxic Cyanophyta produce: neurotoxins,saxitoxins, hepatotoxins and cytotoxins.


HARMFUL:potentiallytoxicspeciesOCCURRENCE: summerLIFE FORM: filamentsENVIRONMENT: T=19.520C;S=6,46,5 PSU; N-NH4=1113

mg*m-3; N-NO3=6978 mg*m-3;P-PO4=27 mg*m

-3;

Si-SiO4=350 mg*m-3

SAMPLING DATE: July / August2008PRESERVATION: life sampleMICROSCOPY: light microscopy

Cyanophyta


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Cyanophyta

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