No ... I'm not wrong ... YES, Early in the war, regular BOMBER SQUADONS were tasked for recon to fill in the gaps, without ANY training or equipment Why don't you name us ONE Heavy Bomber Squadron that was tasked for -FRONT LINE RECON- that wasn't relieved as SOON as an Amphibian Squadron was available? ... Tell us about HOW MANY Catalina Squadrons were HELD IN RESERVE (hint: 0) as they weren't DESPERATELY NEEDED at the front. EXPLAIN why all the foriegn orders for the Catalina's were CANCELLED immediately upon commencement of hostilities? The Field Based Recon Bomber squadrons that existed were stationed in the Aleutians or at Mainland Costal Bases and were staffed by misfits not judged capable of Strat Bombing Ops and Returned Aircrews finishing out their enlistments ... MOSTLY they were on ASW patrol ... ... PBY squadrons were staffed by the TOP OF THE CLASS Multi Engine Pilots and went to special schooling for observation dutys ... It's HISTORY and EASILY VERIFIABLE ... learn how to read a book and stop googling every weirdo web site on the net.

I bet you didn't know that we already have the primary patrol plane used by the USN/USMC for anti-shipping/submarine patrols in Aces High and *hint* it's a bomber.
You are partially correct in that for the USAAF, the use of bombers for patrol missions became a secondary role because in 1943, by agreement with the USN, the USN took over all anti-shipping/submarine patrol duties and USAAF Anti-Submarine Command (responsible for anti-shipping/submarine and maritime patrolling) was disbanded. It was a rather silly agreement born out of service rivalry, the USAAF agreed to get out of the maritime patrol business and stop objections of the USN operating heavy bombers in exchange for the Navy dropping the Sea Ranger program and instead use the facilities at the Renton factory to B-29 production. The USN agreed and got the B-24s, B-25s, A-20s, and the B-34/B-37 Venturas that the USAAF had used in their anti-maritime units. The USAAF B-24Ds that were given to the USN already were already ASV radar equipped and all factory production models afterwards were similarly equipped.
USN operated 977 PB4Y-1s throughout the entire war and was the primary anti-maritime/patrol aircraft for both the USN and USMC. You should read the book, "We Flew Alone", which is the history of the USN PB4Y-1s in the Pacific during WW2.
ack-ack