Interesting discussion - I've done a lot of reading on this subject, but for humans! However, the same concerns exist.
The best quality seafood with the most nutrients is either very fresh or quickly frozen and rushed to you. Ideally it should be kept well frozen and never allowed to thaw, then freeze again - you pay more for seafood that's been properly handled.
I used to go early in the morning to the best seafood shop in town where they had gulf shrimp caught the day before, frozen on the shrimp boat and rushed to Dallas. The store unfroze the 5-pound block of ice and shrimp early in the morning. I was able to buy shimp that was still partially frozen and rush it home on ice. I used it that day, maybe the next, but no longer. That seemed to work very well. It was also quite expensive ($16-$22/pound).
Also, if you catch your own food along the seashore, the question of water quality and pollution comes up. I don't imagine this is an issue for Colin in Scotland, but it's something to consider along some of the US coastlines.
I've read of cephs rejecting food that's too old, such as a frozen shrimp thawed out several days before.
It's an interesting point about the food affecting the lifespan - there's so much we still don't know.
Nancy
The best quality seafood with the most nutrients is either very fresh or quickly frozen and rushed to you. Ideally it should be kept well frozen and never allowed to thaw, then freeze again - you pay more for seafood that's been properly handled.
I used to go early in the morning to the best seafood shop in town where they had gulf shrimp caught the day before, frozen on the shrimp boat and rushed to Dallas. The store unfroze the 5-pound block of ice and shrimp early in the morning. I was able to buy shimp that was still partially frozen and rush it home on ice. I used it that day, maybe the next, but no longer. That seemed to work very well. It was also quite expensive ($16-$22/pound).
Also, if you catch your own food along the seashore, the question of water quality and pollution comes up. I don't imagine this is an issue for Colin in Scotland, but it's something to consider along some of the US coastlines.
I've read of cephs rejecting food that's too old, such as a frozen shrimp thawed out several days before.
It's an interesting point about the food affecting the lifespan - there's so much we still don't know.
Nancy