Data sources
Data from:
DFO AZMP:   1999 2005 (E.Head, P.Pepin)
DFO IML:1990 1991 (S. Plourde, P. Joly)
US-GLOBEC:  1995 1999 (E. Durbin, M. Casas)
PULSE NEC:   2003 2005 (R. Jones)