1、青島海洋大學(xué)碩士學(xué)位論文許氏平鲉（Sebastesschlegeli）消化道組織學(xué)、組織化學(xué)及酶學(xué)研究姓名：馮曉燕申請學(xué)位級別：碩士專業(yè)：海洋生物學(xué)指導(dǎo)教師：鄭家聲劉曉云2001.4.1AStudyoftheHistology，HistochemistryandenzymologyontheDigestiveTractoftheSebastesschABSTRACTThedigestivetractof＆schlegeliisshort

2、，whichisoftypicalfeaturesofcarnivorousfish，andcanbedividedintooropharyngealcavityoesophagus，stomach，smallintestine，rectumandanusMuff1ayeredepitheliumcellscovertheoropharyngealcavityandtastebudsarepresentinthemucosaThetra

3、ctafterpharynxconsistsoftunicamucosa，submucosa，laminamuscularisandserosaTheoesophagusbearsstratifiedepitheliumandsomeregionsaresingle—layeredcolumnarepitheliumTheY。shapedstomachshowsasinglelayeredcolumnarepitheliumInthec

4、ardiacpartandcaecumgastricus，therearewelldevelopedplicae，gastricpitsandgastricglandsWhiletherearenogastricglandsinpyloricpart，thesmallintestineepitheliumarecomposedofcolumnarcellsThereisavalvebetweenthesmallintestineandt

5、herectumThemucoseofrectumisformedbvpseudostratifiedcolumnarepitheliumcellsTheabsorptionroleissupportedbythepresenceofanintensealkalinephosphataseactivityintheepitheliumofthepyloricaecumandsmallintestineThepresenceofabund

6、antacidphosphataseintheaDicalborderofthestomachepithelium，thepyloriecaecumandthesmallintestinesuggeststhatthesecellsareactivelyinvolvedinabsorptionandintracellulardigestionofnutrientsubstanceCarboxylicesteraseactivitvint