Algal blooms

 Apart from coral spawn any fishos north of Perth on this site seen any algal blooms washed up on their beaches like what was on Shoalwater or Woodman point what water authority is calling a normal algal bloom?    www.communitynews.com.au/weekend-courier/news/warning-issued-over-algal-bloom-at-shoalwater-bay/

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Tom M


Dale's picture

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Tue, 2018-04-24 10:15

 This has kept me off the water today. Had every intention of a day on the water until I read that.

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"Just because you are a Character, Doesn't mean you have Character."

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Moking's picture

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  Hey Dale- You should of met

Tue, 2018-04-24 18:41

  Hey Dale- You should of met us out at Mewstone- The salmon were on today!

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 My Dad taught me how to Fish-Thanks Dad.(RIP)

Swompa's picture

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 Was ridiculous out there.

Wed, 2018-04-25 21:28

 Was ridiculous out there. Saw a Seal, dolphins and a shark within 10 minutes. And on the way home, a penguin. 

 

 

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All clear

Tue, 2018-04-24 13:38

I thought the all clear had been given for this?

Tom M's picture

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 405 reads of this post and

Tue, 2018-04-24 16:18

 405 reads of this post and no mention of any such blooms north of the river?

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Tom M

ranmar850's picture

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Date Joined: 12/08/12

that just looks like the stuff we've had up here forever

Tue, 2018-04-24 18:12

  Reddish colour? can go green in strong concentrations? Turns purple and smells like goldfish food when it dries out on the beach? people refer to it (wrongly) as coral spawn?  been a feature of life up here d when the weather turns nice in summer/autumn literally forever. Often coincided with the whites being good but could still turn up later. Nothing to worry about, IMO, and probably totally unrelated to your poo pipe issues.

little johnny's picture

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News report said chance of

Tue, 2018-04-24 18:32

Hep a and b . And other diseases ,if water is swallowed or open wounds on body,Never thought algae or coral spawn could cause issues like that ?

ranmar850's picture

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No, they shouldn't

Tue, 2018-04-24 19:48

 If it was the naturally occurring stuff, the worst you can see is some skin irritation, and I think that isn't very common, either. We used to wade through the stuff on a regular basis, you'd get thick concentrations of it along the beach when you were using your tender, never had any  ill-effects. are they being a) super-cautious as everyone seems to be nowadays, or b)  don't they know their stuff, or c)  is it something different altogether. Worst effect we ever had from the naturally occurring stuff was having it so thick on the surface you couldn't see the bottom when you were setting by eye when whites were in the shallows. Spinning the crayboat arond in circles to get a clear patch

Tom M's picture

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 Hoping this info doesn't get

Wed, 2018-04-25 07:58

 Hoping this info doesn't get lost in this thread if it does I will raise a new comment.

Been goung through the Water Authority Annual reports to view sampling results for Sepia Basin (Point Peron) There has consistantly been excedence in many of the samples over the years some approx 10 x the threshold but guess what when you put those samples with dozens that are under the threshold you get it down to an acceptable level and that is what is reported.

Ranmar of interest is that Ocean Reef & Swanbourne are not much better, so maybe the crap on the beaches may be the norm but may not be natural seem to be a link between waste water treatment plants ( just an acceptable way of sayung sewerage traetment plant) that discharge into the ocean and high density population.

You can find their reports on line or read through some of the reports and draw your own conclusion.

https://www.watercorporation.com.au/about-us/our-performance/ocean-outfall/perth-monitoring-program

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Tom M

ranmar850's picture

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it is interesting about the outfalls

Wed, 2018-04-25 08:11

 I was unaware of the existence of the other outfalls. If, as you say, this stuff which looks like the naturally occurring phytoplankton is concentrating near the outfalls, you'd have to think there was a link. Natural ocurrence accelerated by raised nutrient levels? 

How far offshore are the outfall outlets at the northern beaches sites?

Tom M's picture

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 They are 1.6 & 1.8 klm off

Wed, 2018-04-25 18:00

 They are 1.6 & 1.8 klm off the beaches. You could nearly cast a line there.

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Tom M

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Date Joined: 16/01/12

 I went flying up the coast

Wed, 2018-04-25 21:16

 I went flying up the coast today and I could see a clear line about 2 miles off Ocean Reef.  The outfall off Ocean Reef was discharging and lots of sediment was being stirred up.

On a side note the weed was thick north of Two Rocks.