Spawning & Rearing Bivalve Mollusks:
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چکیده
In this lesson, students will acquire skills in using an ocular micrometer to measure the length of bivalve larvae, monitor the density of larvae in their culture system, and understand production protocols used in bivalve hatcheries. This activity will take a period from each class over approximately a two-week period – the time for larvae to develop from egg to metamorphosis (setting). One or two students would exchange the water (10 minutes) while other students would sample for larval density and place samples under the microscope (with ocular micrometer) to measure growth. This could be done in groups, rotating on a daily basis, and all of which could be done tangential to other classroom activities. Interest Approach: Now that students have successfully spawned bivalves, they should adapt a nurturing approach to seeing the larvae survive, grow, and develop into juvenile shellfish. This project will take only a few minutes of each day for students to exchange the water on the bivalves, establish clam density (e.g. survival) and monitor growth rate. Student Materials:
منابع مشابه
Spawning & Rearing Bivalve Mollusks:
In this lesson, students will learn methods for spawning bivalve mollusks (e.g. clams or oysters) using thermal induction. Students will acquire skills in using an ocular micrometer to measure the diameter of bivalve eggs and the length of bivalve larvae. The following lesson plan will have students monitoring the density of larvae in their culture system and understanding production protocols ...
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