BACKSLIDING: The 500,000-member Bass Anglers Sportsman Society has rescinded a rule change that would have allowed women to compete in tournaments this fall.

The change approved in April made women eligible to fish on the $2.7 million BASS professional circuit starting in September. But BASS officials said about 100 top pros and a number of their wives signed a petition objecting. A subsequent poll of 575 BASS pros found opponents outnumbering proponents by a 3-1 margin, said Helen Sevier, who heads the organization.

"The mandate of our BASS pros . . . is clear," said Sevier. "They don't want women competing on the Bassmaster tour so we are rescinding the rule."

HE'S OFF: Bethesda's John Lentz departs Tuesday to lead a six-man canoeing contingent down the Maymecha River in northern Siberia. Lentz, a veteran river adventurer with a long list of achievements in the Canadian north, says it will be the first wilderness canoe trip in the Soviet Union.

Lentz said lower stretches of the Maymecha have been paddled by Soviets in whitewater catamarans and kayaks, but upper stretches of the 400-mile stream are generally uncharted. His group will take five weeks to complete the trip.

Lentz, who works at the World Bank, will be accompanied by Mike Springer of Bethesda, Bob Schaefer of Mount Airy and translator Jim Dwyer of Alexandria, plus two Canadian paddlers.

CAPSIZERS: The famous log sailing canoes of St. Michaels, Md., cross the Chesapeake for the first time in 25 years next weekend for a sailing regatta at Annapolis.

Seven or eight of the tippy, frail craft will make the trip. Only 13 log canoes remain in existence. Racing starts at 10:30 a.m. Saturday and Sunday, with finishes in Annapolis Harbor in front of the Chart House Restaurant about 4 p.m. Saturday and 12:30 p.m. Sunday.

Log canoes, descendants of Indian craft, are so unstable the crews are required to climb out on long ballast boards to keep them upright in even a moderate breeze. The oldest boat in the fleet, Judge John C. North's Island Bird, was built in 1895.

THEY'VE GOT THE BLUES: Long-suffering Chesapeake Bay anglers report they're finally catching some bluefish around the Point Lookout area at the mouth of the Potomac, trolling with small surgical-tube eels. The fish are in the one- to two-pound range, according to Capt. Steve Madjeski at Scheible's Fishing Center in Wynne, Md., who said catches of 30 to 100-plus per charter boat are being recorded.

Madjeski said small schools of blues are breaking the surface in pursuit of bait from Point Lookout clear across the Bay to Smith Island. These fish mark the first concentration of blues in the Bay all season, he said.

TROUT TALK: Former Washington fly-fishing entrepreneur Barry Serviente is holding a fly-fishermen's book fair Saturday from 10 to 6 at the Dickinson College campus in Carlisle, Pa. The fair also includes talks by authors Ed Shenk, Joe Humphreys and Harry Murray, plus displays of antique tackle and appraisals of any tackle you bring in. Admission is free. Call Serviente at Anglers Art, 1-800-848-1020.

Meantime, Jim Gilford, an entomologist and fly fishing instructor, will discuss habitat improvement and stocking programs at Big Hunting Creek in Thurmont, Md., at the monthly meeting of the Northern Virginia Chapter of Trout Unlimited at 6:45 p.m. Thursday. The session is at National Wildlife Federation headquarters, 8925 Leesburg Pike, Vienna; the public is welcome.

THROUGH THE FOAM: Some of the world's top whitewater kayak and canoe racers will compete at the World Cup slalom races on the Savage River in Western Maryland next weekend. Slalom events featuring World champion Jon Lugbill of Bethesda start at 12:30 p.m. Saturday and Sunday, preceded by the national wildwater championships at 11 a.m. Friday. Tickets at $10, $12 and $15 a day are available through Ticketron; for information, call (301) 387-4282.