Imagine that you were one of the boys trapped on beachb.Descrobe in not more than 200 words what you did from the time you were cut off the tide
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Red tides are blooms of dinoflagellates - a type of single-celled algae - and yes sometimes they are toxic. They depend on various nutrients, most importantly nitrate, phosphate and iron, as well as needing other things like enough warmth. If a lot of one of the things they need arrives in the system, when it was 'limiting' before (ie. there was enough of everything else before except that one thing), then you can get a bloom until something becomes limiting again.
This can happen 'naturally', like due to the wind carrying iron-rich sand from the Sahara out to sea. Or it can happen due to things we've done, eg. from fertilisers (nitrates and phosphates) coming down and building up in rivers and estuaries. So the simplest and most important thing we can do to minimise red tides is to not overuse fertilisers.
Red tides are blooms of dinoflagellates - a type of single-celled algae - and yes sometimes they are toxic. They depend on various nutrients, most importantly nitrate, phosphate and iron, as well as needing other things like enough warmth. If a lot of one of the things they need arrives in the system, when it was 'limiting' before (ie. there was enough of everything else before except that one thing), then you can get a bloom until something becomes limiting again.
This can happen 'naturally', like due to the wind carrying iron-rich sand from the Sahara out to sea. Or it can happen due to things we've done, eg. from fertilisers (nitrates and phosphates) coming down and building up in rivers and estuaries. So the simplest and most important thing we can do to minimise red tides is to not overuse fertilisers.
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