In order to minimize the impact of the derbies on the elasmobranchs of Elkhorn Slough and to assist in various research projects, a tag-and-release program was initiated in 1988 through a cooperative effort between MLML
, the PVRGC, Monterey Bay Aquarium, and the Elkhorn Slough Foundation.
Most useful data on 66 specimens >35 cm came from seven institutions (HSU, 34; CDFG, 15; CAS, 8; ABL, 3; BCPM, 3; UBC, 2; MLML
This study could not have been completed without all the help from MLML
students and Bird and Mammal Laboratory interns.
Because there was strong agreement between facility aging techniques (MLML
and NMFS, La Jolla, Butler et al.
, 8272 Moss Landing Road, Moss Landing CA 95039.
We thank the people who provided the ships and submersibles, and their crew, including MLML
ship operations staff, Wayne Kelly, the crew of the CV Cavalier, the pilots of the submersible Delta, Dave Slater and Chris Ijames, and the crew of the RV Point Lobos and Ventana, and ROV pilots.