Re: Oregon Sport Tuna Landings
The catch estimate is split into two parts the charter boat estimate and the private boat estimate:
The charter catch estimate is generated from a combination of our regular dock interviews, and reported trips and landings from the charter offices and captains (via a modified log book type of reporting system that we have been using for years). Using this method for the established charters, we account for nearly 100% of the charter effort and catch.
The private boat catch estimate is from the same method that we use to estimate all the other ocean private boat effort and catches. We make a count of the private boats going out to the ocean (the boat count methodology varies a bit between ports), and then we interview a "random" cross section of the returning trips to find out the percent of boats fishing for each major target species, the average number of anglers per boat, and the catch per boat (amongst other things). Then the interview data is applied back to the total number of boats that went fishing to generate estimates of number of anglers and the catch.
There is no question that our private boat albacore estimates are not as accurate as our other catch estimates. This is largely due to the tendency of boats that are fishing albacore to return to port late in the day. Oftentimes, after the "fish checkers" have gone off duty. However, we do check some of the private boats that fish albacore. One thing to keep in mind with our estimate of the private boat albacore catch is that it should be considered a minimal estimate.
[ 07-17-2003, 10:11 AM: Message edited by: Chum King ]
|