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Coastal Algal Blooms Arrive
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Thread: Coastal Algal Blooms Arrive

  1. #1
    Ausfish Platinum Member
    Join Date
    Feb 2006

    Coastal Algal Blooms Arrive

    I expect many will have noticed a discolouring of the surf between Bustard Head and the Goldy. It isn't 'fresh', it is 'anaulus australis' - microscopic algae that 'deoxygenates' the surf and fish do not like swimming in it because of this. The surf colour alternates from green to brown depending on water temp and cloud cover and temperature on the day - or the day before. However, I notice that a lot of people can't even see it and think it's always this colour - or something . Tell tale signs are a foamy line at the waters edge, or green to purple coloured lines left on the beach as the tide recedes and the dead algae dries. This algae has been present for several weeks now.

    Also - have been receiving reports of minor hincksia blooms at Fraser for about a month now, but it seems that this situation has deteriorated badly. Spoke to people this morning who had just driven down from Indian Head and found that the surf is choked with hincksia all the way to Hook Point and reported that it is the same to at least Ngkala Rocks and likely the Cape. Inskip and Rainbow are just starting to receive the algae which will gradually work it's way to Noosa Heads. The Hastings St business community won't be a happy lot with this news.

    It would be safe to say that the September stream rises are directly responsible for these blooms.

    Snot weed is also in plague proportions on Fraser and the northern end of Teewah Beach - as a result of the blooms.

    I would be interested to hear if there has been any 'lyngbya' outbreaks in Moreton Bay - I would be very surprised if there hasn't been.

    Lindsay

  2. #2
    Ausfish Bronze Member
    Join Date
    Aug 2009

    Re: Coastal Algal Blooms Arrive

    I have seen this on Narrabeen beach in Sydney too. Always thought it was just pollution.. either way, yuck!

  3. #3

    Re: Coastal Algal Blooms Arrive

    There were some algal blooms about two weeks ago offshore.

  4. #4

    Re: Coastal Algal Blooms Arrive

    Noticed a bloom off the foreshores at Margate and Queens beaches on the Reddy peninsula over the last couple of days......they were patchy though and didnt run the full length of either beach.

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