Johnston and Butterworth (2011a and b) provided input data and stock assessment details for the Tristan da Cunha group of islands. Recently, three further year’s catch-at-length data have become available and are listed here (Tables 1a-d).
The authors have also used the longline catch-and-effort database from the three outer islands to calculate a “discard percentage” for each season 1997-2008. These data are listed in this document (Table 2).
History
Department/Unit
Department of Mathematics and Applied Mathematics, University of Cape Town