Janine--+Student+Work-+Collaborative+Lab+Report

=Student Samples of Wiki Collaborative Lab Writing/Data Collection=

//TEMPERATURE//
Nicole/Grace Temperature is one of the principal parameters degrees of hot and cold. The survival range for trout is published at 35 to 75 °F (2 to 23 °C). And the optimum feeding range for most trout species is between about 50 and 65 °F (10 to 20 °C). There's no definite point where they will stop feeding. As it gets colder they will get more sluggish and feed less. As it gets warmer the oxygen content will drop and they will feed less. And above about 70 degrees of temperature is a risk to their health and survival, due to the low oxygen levels. So, we have to keep our trout tank between 50 and 65 °F to keep optimum condition. Therefore, For maintaining level in our ecosystem, we have to control the temperature by chiller. If the temperature got warm, we should have to use chiller and make water more colder. We have to check at least 5 days in a week, because trout is sensitive for temperature. (°C) ||
 * __Table__**
 * Date || Temperature
 * 10/14/09 || 14.8 ||
 * 10/15/09 || 15.4 ||
 * 10/16/09 || 14.8 ||
 * 10/18/09 || 15.3 ||
 * 10/20/09 || 15 ||
 * 10/21/09 || 14.7 ||
 * 10/22/09 || 14.8 ||
 * 10/23/09 || 14.5 ||
 * 10/26/09 || 14.3 ||
 * 10/27/09 || 15.3 ||
 * 10/28/09 || 14 ||
 * 10/29/09 || 14.2 ||
 * 11/01/09 || 14.8 ||
 * 11/02/09 || 14.8 ||
 * 11/05/09 || 15 ||
 * 11/09/09 || 14.5 ||
 * 11/13/09 || 14.5 ||
 * 11/16/09 || 14.2 ||
 * 11/19/09 || 14.8 ||
 * 11/23/09 || 15 ||
 * 11/30/09 || 15 ||
 * 12/01/09 || 14.8 ||
 * 12/03/09 || 14.4 ||
 * 12/07/09 || 14.4 ||
 * 12/14/09 || 14.5 ||

//DISSOLVED OXYGEN//
Michaela I'm doing the background of dissolved oxygen. Dissolved oxygen is the amount of oxygen dissolved in a body of water as an indication of the degree of health of the water and its ability to support a balanced aquatic ecosystem. The amount of DO needed for the tank is 10ppm. We can maintain this by making sure that the bubblier is working properly, so that the trout won't be lacking any oxygen. We try maintain this level of DO by checking the tanks DO every Thursday. The steps of measuring the DO is that first we take 25mL of water from the tank, than we take the ampules into the 25mL of water, after that you break the tip of the ampules. Wait about 2 minutes than compare the color of the ampules to the chart and record the data.

Date Dissolved Oxygen 10/15 10ppm 10/22 10ppm 10/29 8ppm 11/5 10ppm 11/12 8ppm 11/19 8ppm 11/26 10ppm 12/3 10ppm 12/10 10ppm