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Shark Bytes – webisode 22
G’day. I’m matt from Adventure Bay Charters and welcome to “Shark Bytes”.
There’s a lot of media about the health benefits of seafood in our diet. This has got me thinking about the pressure this is going to put on our largest key species of fish that are out there, those big fish that reach maturity at a later age. We often don’t think about this, nut in the case of farming on the land, we look at species of animals that reach maturity in 2 years, the reason we do this is because of profitability, we have the ability to get a return on it sooner rather than later. What it means is that we don’t farm animals that reach maturity in 8-10 years of age, so if that’s the case, why are we harvesting fish from our oceans that’s maturity is 8-20 years of age? Anything over 3 years of age is not a good idea! What this looks at is the idea of sustainability, what we can afford to consume, what the ocean can afford to give us. What it comes down to is this; a Tuna takes 8-10 years to mature, that means that if it takes over 3 generations to recover from over fishing of from a significant loss or die off, we will be looking at close to 30-40 years for recovery. If we look at the smaller species of fish such as sardines, herring, salmon, calamari, some species of crabs, prawns, which only takes 18 months-2 years to reach maturity, it’s only 6 years to recovery, so if we get it wrong, we have the ability to watch them recover and we can see their response a lot quicker. If we don’t eat lamb and beef, then I can understand why we don’t eat seafood, but we do eat lamb and beef and we should also think about our ocean in the same light. Although we don’t actually farm it we have a responsibility to look after it and make sure it’s there for the future. This idea of sustainable seafood is something you need to think about. Don’t worry about the strong taste of sardines, they’re delicious! You just need to know how to cook them
So stay tuned for more “Shark Bytes” and remember the future of the marine environment is in all our hands.