This lesson incorporates techniques and experimental designs used by researchers during the Southern Ocean Diatoms PolarTREC expedition and during post-expedition laboratory analysis. This guided inquiry lesson provides students the opportunity to explore photosynthesis and primary productivity using techniques to measure chlorophyll levels.
Objectives
SWBAT:
1. Use models to predict chlorophyll levels in the global oceans
2. Identify
Understanding Physical and Chemical Parameters of Ocean Water Using CTD Profiles
Overview
A focus of the PolarTREC Southern Ocean Diatoms expedition was to collect water samples and physical profile data using oceanographic technology. Oceanographers rely on the real-time data transferred from the water column to the ship-based computers using a CTD sensor. The CTD measures conductivity (salinity), temperature and depth
In this introductory lesson, students read an article about Arctic Ocean ecosystems and then play a board game in which they take on the role of researchers.
Objectives
The purpose of this introductory activity is to:
* Identify the main components of complex arctic ecosystem and describe predator/prey relationships between phytoplankton, ice algae, zooplankton, bowhead whales, polar
This video was shot by Mike Etnier at Makanrushi Island, Russia in July 2008. This is underwater footage of one of several large schools of Atka mackerel that were feeding on krill at the surface. See "Atka mackerel and krill" for surface footage of one of the schools of fish and underwater footage of the krill. For more
This video was shot by Mike Etnier at Makanrushi Island, Russia in July 2008. There are several thousand Atka mackerel feeding on krill at the surface. See "Atka mackerel school" for under-water footage of one of the schools of fish. For more details on the feeding aggregation, and its relevance to our archaeology studies, read the journal entry