( ( Using ( ( a slow ) ( retrieve ( ( ( this time ) ( of year ) ) ( due ( to ( the ( decreasing ( water temperature ) ) ) ) ) ) ) ) ) ( ( is ( a ( common tactic ) ) ) . ) )
(ROOT (S (S (VP (VBG Using) (S (NP (DT a) (JJ slow)) (VP (VB retrieve) (S (NP (NP (DT this) (NN time)) (PP (IN of) (NP (NN year)))) (ADJP (JJ due) (PP (TO to) (NP (DT the) (VBG decreasing) (NN water) (NN temperature))))))))) (VP (VBZ is) (NP (DT a) (JJ common) (NN tactic))) (. .)))
Using a slow retrieve this time of year due to the decreasing water temperature is a common tactic.
(ROOT (S (PP (IN As) (NP (NP (DT the) (NN temperature)) (PP (IN of) (NP (NN water) (NNS decreases))))) (, ,) (NP (DT the) (NN water) (NNS molecules)) (VP (VB slow) (PRT (RP down))) (. .)))