Im seeking if anyone can give me the e-mail address of RICC Francis. My
problem is this: I have been looking at his (1988) paper comparison of tagging
and age based data and particularly on the re-parameterisation of the VBGF
(equation 4 on his paper). What i find is that `r' always comes to 1, making
the terms (1-r) coming to zero and hence the whole product as zero. This
makes the calculation of expected length at an arbitrat age coming to be
similar to Lo. I would appreciate any help from anyone on the list.