Keri's+Fourth+Visit

During low tide, I went on Sunday, November 30 at 12:30 to 1:00 pm. The tide was 0.27 feet. During high tide, I went on Saturday, December 6 at 10 to 10:30 am. The tide was 1.44 feet. =__**Free Journal:**__=

__**Observations:**__ During experimentation, I noticed an interaction between the fish. Now and then, I would see one fish chasing another for a second or two, then the fish that’s chasing would swim back when it’s done. I think this is a territory issue, where one fish comes to close to another fish’s territory and the fish would chase it away. I thought this was interesting because this is like dog interactions, where one dog might come to close to another dog’s territory and the dog might growl, bark, bite, or fight the other one.

I noticed that during low tide, the water was much murkier than the water during high tide. The water clarity during low tide was about 10 feet and during high tide was about 15 feet. I think this has to do with the waves and if there were more current, then it would clear up the water.

Hypothesis: If it is high tide, then there will be more various species of fish in the inlet.

__**Procedure:**__ 1. Enter the water at the far left side.

2. Swim along the reef. While swimming to the right, count how many different species of fish you see. This should take ten minutes. 3. You are done when you reach the big rock.

4. Record your data. 5. Take note of when you are experimenting. You would have to do this procedure twice: high and low tides. The tides should be at least a foot difference.

__**Data Table: Different Species of Fish**__

In conclusion, my hypothesis is correct. There are more different species of fish during high tide, but between the two, it’s not a significant difference. The squirrelfish, sergeant major, oama, and the humuhumu-nukunuku-apua’a were the four fish that weren’t spotted during high tide. I think there is more different species of fish during high tide because I think there’s more food for them since the waves stir up the bottom and there would be more nutrients in the water for the fish.

=__**Assigned Journal:**__=