▁of ▁the ▁Sac r amento ▁su cker ▁( Cat ost om us ▁occident alis ▁occident alis ), ▁and ▁zo op l ank ton , ▁especially ▁D ap hn ia ▁s pp . ▁Lar ger ▁sc ulp ins ▁eat ▁small ▁fish , ▁fro gs , ▁and ▁m oll us cs . ▁The ▁adult s ▁are ▁known ▁to ▁can n ib al ize ▁the ▁ju ven iles . ▁ ▁In ▁its ▁habitat ▁it ▁lives ▁alongside ▁its ▁relative , ▁the ▁co astr ange ▁sc ul pin ▁( C ott us ▁ale ut icus ), ▁which ▁is ▁quite ▁similar ▁to ▁it ▁in ▁terms ▁of ▁morph ology ▁and ▁behavior . ▁It ▁can ▁also ▁be ▁found ▁with ▁the ▁three - sp ined ▁stick le back ▁( G aster ost eus ▁ac ule atus ), ▁steel head ▁tr out ▁( On cor h yn chus ▁my k iss ), ▁K lam ath ▁small - scale ▁su cker ▁( Cat ost om us ▁rim icul us ), ▁coast al ▁cut th ro at ▁tr out ▁( On cor h yn chus ▁cl ark i ▁cl ark i ), ▁Ch ino ok ▁sal mon ▁( O . ▁t sh aw yt sch a ), ▁and ▁coh o ▁sal mon ▁( O . ▁kis utch ). ▁ ▁Sp aw ning ▁season ▁can ▁extend ▁from ▁February ▁to ▁June . ▁The ▁male ▁creates ▁a ▁nest ▁under ▁de br is ▁such ▁as ▁logs ▁or ▁garbage , ▁and ▁the ▁female ▁l ays ▁many ▁eggs , ▁from ▁a ▁few ▁hundred ▁up ▁to ▁ 1 1 , 0 0