{ "nid": "64", "details": "\x3cspan class=\"title\"\x3eEcoBeaker™: Predator Avoidance in Aquatic Systems\x3c/span\x3e\x3cbr/\x3e\n\x3cspan class=\"description\"\x3eThe objective of this lab is to keep zooplankton survival high in the face of fish predation by manipulating several characteristics of the zooplankton, including their swimming speed, reproductive rate, and vertical migration behavior. Explore one reason why vertical migration is so common... Some instructors use this lab after visiting a lake and demonstrating that you only catch zooplankton deeper in the lake.\r\n\x3c/span\x3e\x3cbr/\x3e\n\x3cbr/\x3e\n\x3cstrong\x3eLevel\x3c/strong\x3e: Advanced\x3cbr/\x3e\n\x3cstrong\x3eKey Concepts\x3c/strong\x3e: Vertical migration\x3cbr/\x3e\n\x3cstrong\x3eCourses\x3c/strong\x3e: Animal Behavior; Aquatic Ecology; Ecology\x3cbr/\x3e\n          \x3cbr/\x3e\x3ca href=\"/search_result_details/brief/64\" class=\"node_brief\"\x3eRead less\x3c/a\x3e        \x3cbr/\x3e\x3ca href=\"/cart/add/64\"\x3e + Add to course collection\x3c/a\x3e  \x3c/span\x3e \x3c!-- description --\x3e\n" }