An “implant and forget” device for interacting with biota after a pre-established time period. Preferably, the biota are fauna and more particularly fish. In select embodiments, the device comprises packaging enclosing apparatus for timing interaction via opening the packaging. In select embodiments...http://www.google.ca/patents/US7350479?utm_source=gb-gplus-sharePatent US7350479 - System and method for controlling growth of aquatic plants utilizing bio-eroding means implanted in triploid grass carp
