Dr.Al after many hours of research I found that Gulp and power bait are products of Berkley. And as Stated by them Gulp is water based Resins nothing about Bio Degradable or if it would degrade over time.
Power Bait on the other hand is made of oil based Resins And ( PVCs )
OMG.
The main difference is that Gulp holds and releases the sent better and Power Bait traps the scent behind the oil barrier. Both are considered Plastics in there own right.
So my prognoses is The Sea Robin would of met its Demise
before it degraded.
So in this Case The power bait once removed The Sea Robin after being sutured up and revised it may have survived.