scape (version 1.0-4)

x.ling: Ling assessment

Description

Stock assessment data and model fit for ling (Genypterus blacodes) in New Zealand waters, using a Coleraine statistical catch-at-age model. This is a two-sex model with 30 age classes and 29 length classes, the catch data starting in 1973 and ending in 2000. The model was fitted to five data components: longline abundance index, survey abundance index, survey catch at age, longline catch at length, and trawl catch at length.

Usage

x.ling

format

List of class scape containing: ll{ N predicted numbers at age B predicted biomass, recruitment, and observed landings (year things) Sel predicted selectivity and observed maturity (age things) Dev predicted recruitment deviates from the stock-recruitment curve CPUE commercial abundance index and fit Survey survey abundance index and fit CAs survey C@A (catch at age) and fit CLc commercial C@L (catch at length) and fit }

source

Annala, J.H., K.J. Sullivan, C.J. O'Brien, and N.W.M. Smith. (eds.) 2001. Report from the Fishery Assessment Plenary: Stock assessments and yield estimates. Wellington: NIWA. Available from NIWA library, Wellington.

Details

Estimated parameters: R0, Rinit, Sleft[trawl], Sfemale[t], Smale[t], Sright[t], Sleft[longline], Sfemale[l], Smale[l], Sright[l], Sleft[survey], Sfemale[s], Smale[s], Sright[s], q[l], q[s], and 29 recruitment deviates.

References

Hilborn, R., M. Maunder, A. Parma, B. Ernst, J. Payne, and P. Starr. 2003. Coleraine: A generalized age-structured stock assessment model. User's manual version 2.0. University of Washington Report SAFS--UW--0116. Available at http://fish.washington.edu/research/coleraine/coleraine.pdf. Magnusson, A. 2001. SeaFIC assessment of Chatham Rise ling (LIN 3 and 4). Middle Depths Working Group Doc. 11. Report for the New Zealand Ministry of Fisheries. Available from the author.

See Also

importRes, x.cod, x.oreo, x.sbw

Examples

plotB(x.ling)
plotCA(x.ling, "s")
plotCL(x.ling, "c", series="1")
plotCL(x.ling, "c", series="2")
plotIndex(x.ling, "c")
plotIndex(x.ling, "s")
plotN(x.ling)
plotSel(x.ling)