文档介绍：Population Quantity Investigation
(Marked-Recapture Method)
Name: Ramsey (Shi Mu-xin)
Number: 201321031101
Investigation Objective
(1) Study and grasp the utilization of Marked-Recapture Method, anduse it to record the number of community from this experiment. Grasp the method of how to mark the individual creatures. Learn the calculating method.
(2)Investigate the number of Pseudorasbora Parva in the BUA’s pool which is nearby relational area.
2. Research Method
(1) Definition: Capture a part of individuals from this population which live in thissurrounding. Mark this part of individuals and let them return the surroundings they live. About a period later, recapture this part of individuals, calculating the number of this population underlies the ratio of one individual which occupies the overall number. This is one of themethods which is often used to investigatepopulation density.
(2) Statistical Principle: Underlie some creature which can move flexible in a pointed area and be investigated. While, referring the cultural individuals’ ratio relationship has influence on overall number by mathematics method.
(3) Theoretical Calculation Formula: N=M*n/m
(4) Premises and Assumptions:It will get stable figures, marked individuals can distribute among the overall individuals, re-marked operation can not impact the behavior and death of animals.