Isle of Islay 2000

 
Loch Tallant is a shallow loch in a nutrient-poor peaty basin:
marginal vegetation is gradually encroaching on the open water and the loch is now only a remnant of the original.

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			L. Conailbhe	L. Tallant
Ankistrodesmus			+
Aphanocapsa	(a)  (b) (c)  (d) (a, c) focussed on upper surface of colony (b, d) focussed on edge of colony	Cyanobacteria: globular cells evenly spaced in colonial mucilage; frequently in pairs. No pseudovacuoles	+	+
Aphanothece		Cyanobacteria: elongate cells in colonial mucilage		+
Asterionella		Diatom	+
Botryococcus sp.		Chlorophyte (these two images of iodine-stained colonies		+
		(unstained)		+
Caloneis silicula		Diatom		+
Ceratium sp.		Dinoflagellate		+
Chroococcus				+
Closterium acutum		Desmid	+
Closterium ?costatum		Desmid	+
Closterium juncidum		Desmid	+
Closterium ?ralfsii		Desmid	+
Closterium setaceum		Desmid		+
Closterium ulna			+
Coelastrum sp.	This colony has been stained with Lugol's Iodine:	Chlorophyte: spherical or polygonal cells forming a hollow ball		+
Coelosphaerium sp.	(a)  (b)   (a) "natural colours", focussed on top surface (b)"natural colours", focussed on edge of colony (c)   (d) (c) Preserved with Lugol's Iodine: surface (d) Lugol's: focussed on colony edge	Cyanobacteria: Cells in a 3-dimensional colony; in pairs or multiples. No individual or group sheaths visible: cells appear to be distributed at the periphery of the colony		+
Cosmarium ?blyttii		Desmid	+
Cosmarium depressum		Desmid		+
Euastrum bidentatum		Desmid	+
Euastrum denticulatum		Desmid		+
Euastrum dubium		Desmid		+
Euastrum oblongum		Desmid		+
Euastrum verrucosum		Desmid		+
Fragilaria capucina		Diatom	+	+
Glaucocystis		Glaucophyta		+
Gloeocapsa		Cyanobacteria:	+	+
Gloeocystis		Chlorophyte	+
Gomphosphaeria sp.		Cyanobacteria: cells heart-shaped or round, at the end of radiating strands of mucilage	+	+
Massartia sp.		Dinoflagellate		+
Merismopedia		Cyanobacteria	+
Micrasterias crux-melitensis		Desmid		+
Microcystis		Cyanobacteria: cells crowded in colonial mucilage.	+	+
Mougeotia sp. 8µm.		Chlorophyte		+
Navicula radiosa		Diatom		+
Netrium interruptum		Desmid		+
Nitzschia sigmoidea		Diatom		+
Oedogonium 6µm		Chlorophyte	+	+
Oedogonium 11µm		Chlorophyte	+
Ophiocytium		Xanthophyte	+
Oscillatoria sp.		Cyanobacteria		+
Pediastrum sp.		Chlorophyte: cells adjoined to form circular plates, with the marginal cells frequently different from the internal ones (often ornamented with protuberances)		+
Pediastrum boryanum		Chlorophyte		+
Pediastrum sp. (?boryanum)		Chlorophyte		+
Pinnularia cardinalicus		Diatom		+
Scenedesmus quadricauda		Chlorophyte		+
Sorastrum sp.		Chlorophyte		+
Spirulina		Cyanobacteria		+
Staurastrum armigerum fo. furcigerum		Desmid		+
Synechococcus sp.		Cyanobacteria:		+
Tabellaria floculosa		Diatom	+
Tabellaria fenestrata v. fenestrata		Diatom	+
Tribonema 6µm		Xanthophyte	+
Xanthidium antilopeum		Desmid		+
Xanthidium cristatum		Desmid (fixed Lugol's iodine)		+

Page last updated 08/12/19

John Kinross