joelespinoza
12-30-2012, 08:14 AM
I was out with Louisianna Fisheries recently doing catch assessments in the area directly south of New Orleans, and I was suprised at how low the salinity was for how many inverts they have out there.
I the area is to muddy for corals, but they do have oysters, sponges, TONS of comb jellies and of course shrimp and lots of other inverts. When we were out doing the assessments the salinity was mostly 5-12 parts per thousand with a couple areas in the 15-18 PPT range. What is really amazing is the area where all the oysters grow is often down to 3-4 PPT and stays there for weeks or even months at a time during spring and early summer. In fact, according to the fisheries guys, apparently it is not uncommon to see it as low as 1 PPT for a few days at a time.
Makes me curious about salinity in aquariums, especially for softy tanks that are more inshore and near shore species.
I the area is to muddy for corals, but they do have oysters, sponges, TONS of comb jellies and of course shrimp and lots of other inverts. When we were out doing the assessments the salinity was mostly 5-12 parts per thousand with a couple areas in the 15-18 PPT range. What is really amazing is the area where all the oysters grow is often down to 3-4 PPT and stays there for weeks or even months at a time during spring and early summer. In fact, according to the fisheries guys, apparently it is not uncommon to see it as low as 1 PPT for a few days at a time.
Makes me curious about salinity in aquariums, especially for softy tanks that are more inshore and near shore species.