Lots of ecological change occuring in the oceans Kevin. In Australia we have had a huge algal bloom in South Australia. See link below. Locally we had a bloom associated with sewage, and unseasonably warm water resulting in a widespread fish kill. Further north nutrient run off on the northern rivers caused another fish kill. At the root of this is the increase in ocean temperatures.
It makes sense when the conditions are right that some species take off! This particular species thrives in cold water, so it is a bit complicated with the rise in ocean temperatures. Although we are seeing a rise on average globally, some regions are seeing cooling locally due to changing circulation patterns, increased upwelling, etc. Whatever causes it, most of these organisms grow so fast that they use up the oxygen in the water, suffocating the fish and other organisms.
Lots of ecological change occuring in the oceans Kevin. In Australia we have had a huge algal bloom in South Australia. See link below. Locally we had a bloom associated with sewage, and unseasonably warm water resulting in a widespread fish kill. Further north nutrient run off on the northern rivers caused another fish kill. At the root of this is the increase in ocean temperatures.
https://amp.abc.net.au/article/105064874
It makes sense when the conditions are right that some species take off! This particular species thrives in cold water, so it is a bit complicated with the rise in ocean temperatures. Although we are seeing a rise on average globally, some regions are seeing cooling locally due to changing circulation patterns, increased upwelling, etc. Whatever causes it, most of these organisms grow so fast that they use up the oxygen in the water, suffocating the fish and other organisms.