( 1956 ( -RRB- ( ( and ( ( hatching ( the ( fertilized eggs ) ) ) ( ( ( in ( hatching jars ) ) or ) ( by ( ( ( ( creating ( an ( artificial stream ) ) ) and ) ( ( allowing ( stocked ( brood fish ) ) ) ( to ( spawn naturally ) ) ) ) ( -LRB- ( Dobie ( et al. ) ) ) ) ) ) ) ) . ) ) )
(ROOT (S (LST (JJ 1956)) (-RRB- -RRB-) (VP (VB and) (VP (VBG hatching) (NP (DT the) (VBN fertilized) (NNS eggs)) (PP (PP (IN in) (NP (VBG hatching) (NNS jars))) (CC or) (PP (IN by) (S (VP (VP (VBG creating) (NP (DT an) (JJ artificial) (NN stream))) (CC and) (VP (VBG allowing) (NP (JJ stocked) (NN brood) (NN fish)) (S (VP (TO to) (VP (VB spawn) (ADVP (RB naturally))))))) (NP (-LRB- -LRB-) (NNP Dobie) (FW et) (NNP al.))))))) (. .)))
1956) and hatching the fertilized eggs in hatching jars or by creating an artificial stream and allowing stocked brood fish to spawn naturally (Dobie et al.
(ROOT (S (S (NP (NP (DT Some) (NN species)) (PP (IN of) (NP (NN fish)))) (VP (VBP carry) (NP (PRP$ their) (VBN fertilized) (NNS eggs)) (PP (IN in) (NP (PRP$ their) (NN mouth))) (SBAR (IN until) (S (NP (PRP they)) (VP (VBP hatch)))))) (: ;) (S (NP (DT this)) (VP (VBZ is) (VP (VBN called) (S (ADJP (NN mouth) (JJ brooding)))))) (. .)))