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Prince Rupert Regional Information Site

NATURE

Sea, land, river

PEOPLES

Community

For earlier materials see Table of Contents

Spring will come	Green Algae starting to ‘bloom’
	High winter tides during day + increasing day length

Green Arrow points to highest level green while blue to similar on other side--- by eye far side seemed to be higher – but photo shows =

Rushrbrook Floats an ‘easy’ spot to study coming of spring in intertidal

(walking down the boat ramp is both safe and doesn’t needlessly harm a pristine beach by tramping on it )

· Prasiola often grows highest on shore

· Pilings suggest zonation studies

· Diatom scum on ramp

· Acrosiphonia??

	Need Microscope
	The green arrow is pointing to bladed green (Ulva?) while foreground could be filaments and small Prasiola blades – need microscope to tell

	Dock pilings at low tide
	Look at the zonation: while concept usually not applied to pilings – it is obvious – from small green algae (green arrow) at the top To thick layer of barnacles and mussels in the mid-zone (pink line) To almost bare at lower levels (below area where barnacles ‘happy’?) Suggests all kinds of school projects – like scraping areas ‘clean’ and see what/ how they repopulate etc

Diatoms ‘cover’ the lower end of boat launch ramp – in other situations make walking ‘treacherous’ -- slippery	Diatom Scum – peak performance
	Diatoms like this time of year too – they are so small and fast growing that they can optimize their biomass during ‘sunny’ days etc

	Need Microscope
	Along endge of ramp interestingas main variable is water depth as one walks down ramp – thus to compare different algae found --- Need microscope but the ‘green filaments’ could be branched juveniles of Acrosiphonia --- the green arrow points to a green blade – Ulva spp

Created by LG on Feb 1, 2006

Last updated on Monday, February 18, 2008