Here are the regulation from the Rockfeller Wildlife Refuge web site:
1. The visiting season on the Rockefeller Wildlife Refuge will extend from March 1st to December 1st throughout the Refuge except those restricted areas designated to prohibit interference with research and management activities. Use of Humble Canal; Joseph Harbor Bayou; Headquarters Canal; East End Road and Locks; Union Producing Canal; Deep Lake; East End Boundary Canal; and Rollover Bayou shall be year round. In addition to the access, sport fishermen shall be permitted only as far inland as the existing water control structures. The remainder of the Refuge shall be restricted during the winter months and will be closed to all trespassing.
2. Use of the Refuge will be allowed from official sunrise until official sunset. This includes access routes through the Refuge.
3. Overnight camping is prohibited.
4. Hunting, pursuing, killing, molesting, or intentionally disturbing any type of wildlife by the public is prohibited. This does not prohibit the Louisiana Department of Wildlife and Fisheries from carrying out harvest programs for certain types of wildlife as specified in the Deed of Donation and/or Memorandum of Agreement.
5. Trawling on the Refuge is prohibited. Trotlines, crab traps, jug lines, trammel, and gill nets and traps are prohibited. All commercial fishing and use of any commercial fishing gear on the Refuge is prohibited. Twenty-five pounds of shrimp (heads on) per boat or vehicle per day is allowed during the inside open shrimp season as established by the Louisiana Wildlife and Fisheries Commission. Ten (10) pounds of shrimp (heads on) for bait purposes may be caught during the closed season. Shrimp may be harvested only by cast net on the Refuge and only for sport fishing or home consumption use.
6. Crawfish may be harvested from the open portion of the Refuge and one-hundred (100) pounds per boat or vehicle is allowed per day. Set nets may be used but must be attended and removed from the Refuge daily. No commercial harvest is allowed.
7. Crabs may be harvested from the open portion of the Refuge and twelve (12) dozen crabs are allowed per boat or vehicle per day.
8. The burning of the marsh by the public is prohibited. Water control structures shall not be tampered with or altered by anyone other than employees of the Louisiana Department of Wildlife and Fisheries.
9. Bringing firearms, bows and arrows, liquor and controlled dangerous substances (drugs) onto the Refuge is prohibited. All boats and vehicles are subject to search by all authorized employees of the Louisiana Department of Wildlife and Fisheries at anytime.
10. Speed boat racing and water skiing is prohibited. All boat traffic shall honor no wake zones and shall keep wave wash to a minimum. Pulling boats over or around levees, dams, or water control structures is prohibited.
11. No littering is allowed. Visitors must remove their litter or place litter in appropriate trash disposal sites. Damage to or removal of trees, shrubs, and wild plants without prior approval is prohibited.
12. Commercial fishing gear or trawls shall not be permitted in possession while participating in sports fishing on Refuge. Commercial fishing gear may be in possession for non-stop access directly across refuge or for safe harbor only.
Here are the regulations for all the "Refuges" [Sabine, East Cove, etc.].
Cast netting:
Cast netting for bait is permitted in accordance with
state regulations and when units are open for fishing only.
The shrimp limit, when cast netting for bait outside the
Louisiana inshore waters shrimp season, is one gallon
per day per vehicle or boat. Cast nets must be emptied
directly into a container. Cast netters must maintain
actual custody of shrimp while on the refuge.