G-Man wrote:Warning! Hijacked thread!
I'd been watching this thread for a bit now and wanted to interject a few facts into the mix. In northern climates the length of daylight has a far greater influence than water temperature on fish reproduction. Ask yourself this question, why are bass in southern climates typically bigger than their northern counterparts? Answer, bass down south feed and grow almost year round. The reason they can feed and grow for longer periods is due to forage availability. Forage availability, in almost every habitat, is dependent upon sunlight. The more sunlight you have the more phytoplankton is produced which is the base food source for nearly every body of water. Come early spring you will see changes in the waters you fish. Algae will bloom regardless of the water temperature and this is what kicks off the "new season". Water temps effect fish in one very important way, their metabolism is directly controlled by it. As water temps increase, the more food and oxygen the fish will need and this what fishermen typically key in on, the spring feeding frenzy. Now keep in mind that metabolism and reproduction are not directly tied to one another. Believe it or not, a fish that guards its eggs, like a bass does, benefits from spawning in cooler water as the amount of energy it expends at this time is reduced significantly. Minimizing the need to feed greatly increases the survival rate of both the adults and the fry. I'm certain that the spawn is timed so that once the fry hatch, their main food source will be plentiful, which is dictated by, lets hear it folks...the amount of sunlight.
Keep in mind that with a few exceptions, species do not tend to all spawn at exactly the same time. That would be like putting all of your eggs in one basket. Early and late spawners are what help ensure that the species does not get wiped out due to unforeseen events or conditions.
Now back to the original topic - If you are the C&R type, I don't grasp the concept of running around with a livewell full of fish, the exception would be if your are in a tournament. Get your weight, length, picture, whatever, and put it back in the water from where it came.
I'm going to disagree with this as well. Bass in southern climates grow much larger because of the longer growing season. The reason they can feed and grow for longer periods is because the water doesn't drop below 40F, at which point a largemouth will basically go into hibernation with fins on the bottom. Forage isn't available to them during shorter days? So once the sun sets before 6pm all the perch disappear magically from the lake? If the water is 35F, I don't care if there's a million perch swimming right under a bass's nose, he's not going to actively feed. Yes the timing of the spawn probably coincides with forage being plentiful, but my guess is it has more to do with the fry not instantly freezing to death when they hatch, and even more to do with when the water temperature reaches a point to where the cold blooded bass's metabolism can support egg production. Bass don't need to feed during the spawn either. They're cold blooded and can go a long time between meals. A nice 10 inch perch or trout could last a bass a couple weeks no problem if it needed to, but bass are opportunistic and will eat when they're not hungry if the situation presents itself.
The only reason shorter days are significant is because they don't allow the water to warm up. Like I said, if the days were short but the water was warm, bass would spawn. If the days were long but the water was 45F, no bass would spawn. Their bodies simply don't have the metabolism to produce eggs in water that cold.