Friday, June 19, 2009

Pollution (Slick) on surface of Tanks 1-2... It's a PROBLEM!

Showing their class as observers... a slick (oil like) has been found on the surface of Tanks 1-2. These tanks have been isolated for over 2 weeks. This also coincides with 3 dead Silver Perch from Tank 5?

Oil and pollution slicks at sea can be tracked back to the source by comparing the chemical make-up of both the slick and different ships ballast/sump or samples taken from other suspect sources. Our priority and limitations are that we need to not focus on blame BUT focus on removal. How might we apply methods, used in sea or fresh water to REMOVE pollutants?
* Dead perch fingerlings removed.

Please comment.

PROBLEM BASED LEARNING (PBL) projects are carefully designed to expose you to the information and skills that we want you to learn.

  • A statement of the problem (eg. diseased animal, failing business)
  • Questions to consider when solving the problem
  • A framework for the time and effort you should spend on the project
  • Support: teacher and resources

The problems that you will solve in this course will relate to what you are learning. They are problems that you might encounter when working in that field or related fields, adapted to your level of study.

With PBL, students are assessed on their ability to go through a problem solving process.

What is PBL?

Thursday, June 11, 2009

Mov'n Out! Silver Perch transfered to Tank 5

We need to 'charge' the bio filter with 'good' bacteria. These 'good' bacteria feed on the waste products of fish making harmful chemicals like nitrates less harmful.

The Silvers, from the LAB Tank will 'kick start' the bacteria- to help ARC brought in some aquarium 'change' water from home and added it to the tank *this water contains good bacteria.

Underpinning this activity is our dedication to animal welfare and care. We reduced the STRESS of capture and transport, and physical injury by:

  1. planning a method of capture that did NOT involve chasing fish around the tank

  2. using an 'enviro' net that reduces the risk of damage to fish scales, gills etc.

  3. water in the tanks was the same- temp. water quality, pH, etc.

* this process of charging the biofilter will take some weeks.

Thursday, June 04, 2009


Although access from within the school is NOT easy! We are beginning to BLOG our BLOG!