This function applies the catch-survey analysis method of Collie and Kruse (1998) for estimating abundance
from catch and survey indices of relative abundance
vector containing the time series of numeric year labels.
catch
vector containing the time series of catch (landings) data.
recr
vector containing the time series of survey indices for recruit individuals.
post
vector containing the time series of survey indices for post-recruit individuals.
M
instantaneous natural mortality rate. Assumed constant throughout time series
T
proportion of year between survey and fishery.
phi
relative recruit catchability.
w
recruit sum of squares weight.
initial
initial recruit estimate,initial postrecruit estimate in year 1, and
initial catchability estimate.
uprn
the upper bound for the recruit and postrecruit estimates.
Value
List containing the estimate of catchability, predicted recruit index by year (rest), estimate of recruit abundance (R),
predicted post-recruit index by year (nest), post-recruit abundance (N), total abundance (TA: R+N), total instantaneous mortality (Z),
and fishing mortality (Fmort)
Details
Details of the model are given in Collie and Kruse (1998).
References
Collie JS and GH Kruse 1998. Estimating king crab (Paralithodes camtschaticus) abundance from
commercial catch and research survey data. In: Jamieson GS, Campbell A, eds. Proceedings of the North Pacific Symposium
on Invertebrate Stock Assessment and Management. Can Spec Publ Fish Aquat Sci. 125; p 73-83.
See also Collie JS and MP Sissenwine. 1983. Estimating population size from relative abundance data
measured with error. Can J Fish Aquat Sci. 40:1871-1879.