'fishing deadline' at rooster rock

i would love an explanation as to how to interpret this sign. is there an imposed deadline related to the sign appearing from the murky depths? does a fishing line die beyond the designated area? clarification is necessary.

#Photo #Photography #OutdoorPhotography #Fishing #Fish #Beach #RoosterRock #CockRock #QueerArt #pdx #Portland #PortlandOregon #BrentPruitt #BrentPruittArt #GayArtist #QueerArtist #LGBTQ #🦄 #ConceptualArt #AccidentalArt #IncidentalArt