Salinity of NSW

Discussion in 'Water Parameters and Additives' started by Andreas, 21 Apr 2008.

  1. Andreas

    Andreas

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    Hi guys,

    just wondering whether the salinity of NSW is always constant.
    I've noticed that the water sometimes tastes saltier when I go swimming.


    Will this then have a significant effect on our small systems when we do water changes??
     
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  3. LikesFish

    LikesFish

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    No. It depends on where you are, and it varies slightly in specific locations. The amount it varies by is not nearly enough to be detectable by a "tasting" experiment. It has much more to do with your taste perception that changes.
     
  4. jacquesb

    jacquesb Retired Moderator

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    Hi Andreas -NO - the salinity of NSW does not always stay the same.

    The salinity of NSW will depend on the following:
    - how hot it was for a few day/weeks (fresh water evaporation - humidity in the air is usually caused by fresh water evaporating from the sea, as well as sea spray)
    - whether it's the rainy season or not (more fresh water running into the sea at specific locations)
    - what currents are currently running close to the area where the NSW is collected from (some currents are MORE salty than others, because it can cause upwelling from the DEEP DEEP waters, bringing algae blooms and plankton to the surface - this water is mostly more saline than the upper layer of the ocean)
    - actual location WHERE the NSW are collected from - different areas can have different salinities....

    I know for a fact that the salinity of South African waters (Durban and Cape Town) differs sometimes between 1.024 and 1.025.

    South African waters differ from the Red Sea (Red Sea being 1.026/7) and the Seychelles 1.025.

    Mauritius for e.g. usually between 1.024/1.025.

    The Dead Sea - 1.036/7....

    Everything comes down to "DOING THINGS SLOWLY" - also why a HUGE water change is also NOT advisable. If you do e.g. 10% water changes, and it VERY slowly - then the total system water volume (mostly with bigger tanks - not nano's) will not fluctuate as much at all...
     
  5. OP
    Andreas

    Andreas

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    thanks guys. just wondered.

    to my :razz: it seemed like a major difference :lol:
     
  6. Mekaeel

    Mekaeel Moderator

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    here at North Beach,Sg 1.025-1.026 (refractrometer)
     

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