Hello, juste une mise au point (comme dirait Jackie Quartz) sur la notion de capturabilité dans ISIS (vu que j'essaie de l expliquer a mon reviewer, j'en profite). Et je redige en anglais pour prendre de bonnes habitudes. In ISIS the parameter is called capturabilité/catchability but it should be disponibilité/availability, that is to say the fish related part of catchability (Gascuel, see below). in ISIS the human related part of catchability, called global fishing power in Gascuel's paper, is handled by fishing parameters (target factors, fishing efficiency, selectivity). More accurately, disponibilité/availability of fish further decomposes into - accessibility: the presence rate on fishing grounds so it's related to spatio-temporal distribution of fish, which is explicit in ISIS and doesn't need to be accounted for using a parameter. - vulnerability: related to fish behavior. So I think ISIS's catchability is actually vulnerability. Do you agree? I am not sure those concepts are widely accepted (for instance here vulnerability is used for accessibility... http://link.springer.com/article/10.1007%2FBF00182344?LI=true#page-4). But should we make it clear somewhere on the website (where?) and even better cite a source clearly explaining the concepts as we use them? *hmmm and by the way, do you know a source I could cite in my paper to support my description of accessibility (I can't find the FAO tech paper)? * :-) Thanks, Sigrid Gascuel: http://halieutique.agrocampus-ouest.fr/pdf/136.pdf citing: Anonyme, 1979. Monitoring of fish stock abundance : the use of catch and effort data. FAO Fish. Tech. Paper. 155 : 101 p. Chadwick M., R.N. O'Boyle, 1990. L'analyse des données de captures et d'effort. In: Méthodes d'évaluation des stocks halieutiques, Brêthes J.C., R.N. O'Boyle éd., Univ. Québec à Rimouski, Vol. I et II, 77-101.