Predation case studies
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9 Terms
two groups of predators
nest predation specialists AND primary (classical predators0
example of nest predators
snakes, skunks, coyotes, weasels, mink
primary predator examples
raptors, weasels, coyotes
what group of predator affects nest success
nest predators
which group of predators affect both juvenile and breeding age
primary predators
what is the swept area method for trawling surveys
to estimate the biomass (population size) of bottom-dwelling fish by calculating the seabed area covered by a trawling net
why do we study fishing effort
based on the average number of anglers fishing per number of possible hours of fishing
why do we study the Success Rate (CPUE)
measuring fish/hour/angler (Catch per unit effort - total fish caught/hours)
what are the two main components of the creel survey formulas
rate of success
fishing effort
