WebAdmin Rockfish in natural habitat. John Heine in the submersible Delta. Delta mini-sub used to track the rockfish to a depth of 300 feet.
Researchers can track the implanted tansmitter from the sub.
Figure showing the configuration of the surgery center, divers and recovery cage. As a result, fishery management for rockfishes is becoming increasingly complex and area specific management strategies, such as the use of marine reserves, are being considered as a way to conserve populations. Knowledge about fish movements is important to evaluate the efficacy of area management strategies. Rick and colleagues developed techniques to tag and track deep water rockfishes. In traditional tag-recapture studies fish are brought to the surface, tagged with an external marker, and released.