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Choosing foods based on calorific values
I’ve had this odd idea bouncing around in my head for quite a while now about calories and wonder weather fish look at this as well, maybe not to the same degree that we humans do, but none the less is it possible.
fish can be opportunist when feeding, we know this because of the variety of food item’s found in there stomach content’s etc, but do they have a preferred food over another when available and if so, why ?.
if they do have a preference, is this chosen on the easy availability of forage at that time of year or is it based on something else like calorific value of said forage.
it’s a question that I find very interesting and also very complex.
So out of all there available food sources which ones have the highest or lowest amount of calories per gram and where do they sit in the glycemic index.
The more calories and a lower G.I a food item has the less time a fish needs to hunt for more, so this in turn uses less energy, on the other hand when they can only eat low calorie foods with a high G.I it may use more energy than it receives from what it’s eating, making it use up vital fat reserves to survive.
The fishy menu,
how can we find out what calories etc are in the food items that our fish eat, the only way I can see is by lots of scientific research by us, which will take time, I mean how do you find out just how much energy, fat, carbs, protein etc, is in a 2 oz hard back crab or a 3” long prawn, a small wrasse or a 6” sand eel, does it really matter I hear you say, I don’t know, they maybe just the rambling of a crazy man that can’t seem to get the idea out of his head, if I knew all the above information I’d feel that it would be another part of the jigsaw puzzle that I’ll be able to put in place though.
All of this may mean nothing, but then again it could be a major key to being able to know what should be there preferred forage at any given time of year, this information then can be used to improve our knowledge over lure choice and presentation techniques, a little food for thought maybe ?
kev
I’ve had this odd idea bouncing around in my head for quite a while now about calories and wonder weather fish look at this as well, maybe not to the same degree that we humans do, but none the less is it possible.
fish can be opportunist when feeding, we know this because of the variety of food item’s found in there stomach content’s etc, but do they have a preferred food over another when available and if so, why ?.
if they do have a preference, is this chosen on the easy availability of forage at that time of year or is it based on something else like calorific value of said forage.
it’s a question that I find very interesting and also very complex.
So out of all there available food sources which ones have the highest or lowest amount of calories per gram and where do they sit in the glycemic index.
The more calories and a lower G.I a food item has the less time a fish needs to hunt for more, so this in turn uses less energy, on the other hand when they can only eat low calorie foods with a high G.I it may use more energy than it receives from what it’s eating, making it use up vital fat reserves to survive.
The fishy menu,
how can we find out what calories etc are in the food items that our fish eat, the only way I can see is by lots of scientific research by us, which will take time, I mean how do you find out just how much energy, fat, carbs, protein etc, is in a 2 oz hard back crab or a 3” long prawn, a small wrasse or a 6” sand eel, does it really matter I hear you say, I don’t know, they maybe just the rambling of a crazy man that can’t seem to get the idea out of his head, if I knew all the above information I’d feel that it would be another part of the jigsaw puzzle that I’ll be able to put in place though.
All of this may mean nothing, but then again it could be a major key to being able to know what should be there preferred forage at any given time of year, this information then can be used to improve our knowledge over lure choice and presentation techniques, a little food for thought maybe ?
kev