提取牡蛎Raising Oystersdoc.docx
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提取牡蛎RaisingOystersdoc
提取牡蛎(RaisingOysters)
intheoysterswereraisedinmuchthesamewayasdirtfarmersraisedtomatoes-bytransplantingthem.first,farmersselectedtheoysterbed,clearedthebottomofoldshellsandotherdebris,thenscatteredcleanshellsabout.next,they"planted"fertilizedoystereggs,whichwithintwoorthreeweekshatchedintolarvae.
thelarvaedrifteduntiltheyattachedthemselvestothecleanshellsonthebottom.theretheyremainedandintimegrewintobabyoysterscalledseedorspat.thespatgrewlargerbydrawinginseawaterfromwhichtheyderivedmicroscopicparticlesoffood.beforelong,farmersgatheredthebabyoysters,transplantedthemoncemoreintoanotherbodyofwatertofattenthemup.
untilrecentlythesupplyofwildoystersandthosecrudelyfarmedweremorethanenoughtosatisfypeople'sneeds.buttodaythedelectableseafoodisnolongeravailableinabundance.theproblemhasbecomesoseriousthatsomeoysterbedshavevanishedentirely.
fortunately,asfarbackastheearly1900'smarinebiologistsrealizedthatifnewmeasureswerenottaken,oysterswouldbecomeextinctoratbestaluxuryfood.sotheysetupwell-equippedhatcheriesandwenttowork.buttheydidnothavetheproperequipmentortheskilltohandletheeggs.theydidnotknowwhen,what,andhowtofeedthelarvae.
andtheyknewlittleaboutthepredatorsthatattackandeatbabyoystersbythemillions.theyfailed,buttheydoggedlykeptatit.finally,inthe1940'sasignificantbreakthroughwasmade.
themarinebiologistsdiscoveredthatbyraisingthetemperatureofthewater,theycouldinduceoysterstospawnnotonlyinthesummerbutalsointhefall,winter,andspring.latertheydevelopedatechniqueforfeedingthelarvaeandrearingthemtospat.
goingstillfurther,theysucceededinbreedingnewstrainsthatwereresistanttodiseases,grewfasterandlarger,andflourishedinwaterofdifferentsalinitiesandtemperatures.inaddition,thecultivatedoysterstastedbetter!
intheoysterswereraisedinmuchthesamewayasdirtfarmersraisedtomatoes-bytransplantingthem.first,farmersselectedtheoysterbed,clearedthebottomofoldshellsandotherdebris,thenscatteredcleanshellsabout.next,they"planted"fertilizedoystereggs,whichwithintwoorthreeweekshatchedintolarvae.
thelarvaedrifteduntiltheyattachedthemselvestothecleanshellsonthebottom.theretheyremainedandintimegrewintobabyoysterscalledseedorspat.thespatgrewlargerbydrawinginseawaterfromwhichtheyderivedmicroscopicparticlesoffood.beforelong,farmersgatheredthebabyoysters,transplantedthemoncemoreintoanotherbodyofwatertofattenthemup.
untilrecentlythesupplyofwildoystersandthosecrudelyfarmedweremorethanenoughtosatisfypeople'sneeds.buttodaythedelectableseafoodisnolongeravailableinabundance.theproblemhasbecomesoseriousthatsomeoysterbedshavevanishedentirely.
fortunately,asfarbackastheearly1900'smarinebiologistsrealizedthatifnewmeasureswerenottaken,oysterswouldbecomeextinctoratbestaluxuryfood.sotheysetupwell-equippedhatcheriesandwenttowork.buttheydidnothavetheproperequipmentortheskilltohandletheeggs.theydidnotknowwhen,what,andhowtofeedthelarvae.
andtheyknewlittleaboutthepredatorsthatattackandeatbabyoystersbythemillions.theyfailed,buttheydoggedlykeptatit.finally,inthe1940'sasignificantbreakthroughwasmade.
themarinebiologistsdiscoveredthatbyraisingthetemperatureofthewater,theycouldinduceoysterstospawnnotonlyinthesummerbutalsointhefall,winter,andspring.latertheydevelopedatechniqueforfeedingthelarvaeandrearingthemtospat.
goingstillfurther,theysucceededinbreedingnewstrainsthatwereresistanttodiseases,grewfasterandlarger,andflourishedinwaterofdifferentsalinitiesandtemperatures.inaddition,thecultivatedoysterstastedbetter!
intheoysterswereraisedinmuchthesamewayasdirtfarmersraisedtomatoes-bytransplantingthem.first,farmersselectedtheoysterbed,clearedthebottomofoldshellsandotherdebris,thenscatteredcleanshellsabout.next,they"planted"fertilizedoystereggs,whichwithintwoorthreeweekshatchedintolarvae.
thelarvaedrifteduntiltheyattachedthemselvestothecleanshellsonthebottom.theretheyremainedandintimegrewintobabyoysterscalledseedorspat.thespatgrewlargerbydrawinginseawaterfromwhichtheyderivedmicroscopicparticlesoffood.beforelong,farmersgatheredthebabyoysters,transplantedthemoncemoreintoanotherbodyofwatertofattenthemup.
untilrecentlythesupplyofwildoystersandthosecrudelyfarmedweremorethanenoughtosatisfypeople'sneeds.buttodaythedelectableseafoodisnolongeravailableinabundance.theproblemhasbecomesoseriousthatsomeoysterbedshavevanishedentirely.
fortunately,asfarbackastheearly1900'smarinebiologistsrealizedthatifnewmeasureswerenottaken,oysterswouldbecomeextinctoratbestaluxuryfood.sotheysetupwell-equippedhatcheriesandwenttowork.buttheydidnothavetheproperequipmentortheskilltohandletheeggs.theydidnotknowwhen,what,andhowtofeedthelarvae.
andtheyknewlittleaboutthepredatorsthatattackandeatbabyoystersbythemillions.theyfailed,buttheydoggedlykeptatit.finally,inthe1940'sasignificantbreakthroughwasmade.
themarinebiologistsdiscoveredthatbyraisingthetemperatureofthewater,theycouldinduceoysterstospawnnotonlyinthesummerbutalsointhefall,winter,andspring.latertheydevelopedatechniqueforfeedingthelarvaeandrearingthemtospat.
goingstillfurther,theysucceededinbreedingnewstrainsthatwereresistanttodiseases,grewfasterandlarger,andflourishedinwaterofdifferentsalinitiesandtemperatures.inaddition,thecultivatedoysterstastedbetter!
intheoysterswereraisedinmuchthesamewayasdirtfarmersraisedtomatoes-bytransplantingthem.first,farmersselectedtheoysterbed,clearedthebottomofoldshellsandotherdebris,thenscatteredcleanshellsabout.next,they"planted"fertilizedoystereggs,whichwithintwoorthreeweekshatchedintolarvae.
thelarvaedrifteduntiltheyattachedthemselvestothecleanshellsonthebottom.theretheyremainedandintimegrewintobabyoysterscalledseedorspat.thespatgrewlargerbydrawinginseawaterfromwhichtheyderivedmicroscopicparticlesoffood.beforelong,farmersgatheredthebabyoysters,transplantedthemoncemoreintoanotherbodyofwatertofattenthemup.
untilrecentlythesupplyofwildoystersandthosecrudelyfarmedweremorethanenoughtosatisfypeople'sneeds.buttodaythedelectableseafoodisnolongeravailableinabundance.theproblemhasbecomesoseriousthatsomeoysterbedshavevanishedentirely.
fortunately,asfarbackastheearly1900'smarinebiologistsrealizedthatifnewmeasureswerenottaken,oysterswouldbecomeextinctoratbestaluxuryfood.sotheysetupwell-equippedhatcheriesandwenttowork.buttheydidnothavetheproperequipmentortheskilltohandletheeggs.theydidnotknowwhen,what,andhowtofeedthelarvae.
andtheyknewlittleaboutthepredatorsthatattackandeatbabyoystersbythemillions.theyfailed,buttheydoggedlykeptatit.finally,inthe1940'sasignificantbreakthroughwasmade.
themarinebiologistsdiscoveredthatbyraisingthetemperatureofthewater,theycouldinduceoysterstospawnnotonlyinthesummerbutalsointhefall,winter,andspring.latertheydevelopedatechniqueforfeedingthelarvaeandrearingthemtospat.
goingstillfurther,theysucceededinbreedingnewstrainsthatwereresistanttodiseases,grewfasterandlarger,andflourishedinwaterofdifferentsalinitiesandtemperatures.inaddition,thecultivatedoysterstastedbetter!
intheoysterswereraisedinmuchthesamewayasdirtfarmersraisedtomatoes-bytransplantingthem.first,farmersselectedtheoysterbed,clearedthebottomofoldshellsandotherdebris,thenscatteredcleanshellsabout.next,they"planted"fertilizedoystereggs,whichwithintwoorthreeweekshatchedintolarvae.
thelarvaedrifteduntiltheyattachedthemselvestothecleanshellsonthebottom.theretheyremainedandintimegrewintobabyoysterscalledseedorspat.thespatgrewlargerbydrawinginseawaterfromwhichtheyderivedmicroscopicparticlesoffood.beforelong,farmersgatheredthebabyoysters,transplantedthemoncemoreintoanotherbodyofwatertofattenthemup.
untilrecentlythesupplyofwildoystersandthosecrudelyfarmedweremorethanenoughtosatisfypeople'sneeds.buttodaythedelectableseafoodisnolongeravailableinabundance.theproblemhasbecomesoseriousthatsomeoysterbedshavevanishedentirely.
fortunately,asfarbackastheearly1900'smarinebiologistsrealizedthatifnewmeasureswerenottaken,oysterswouldbecomeextinctoratbestaluxuryfood.sotheysetupwell-equippedhatcheriesandwenttowork.buttheydidnothavetheproperequipmentortheskilltohandletheeggs.theydidnotknowwhen,what,andhowtofeedthelarvae.
andtheyknewlittleaboutthepredatorsthatattackandeatbabyoystersbythemillions.theyfailed,buttheydoggedlykeptatit.finally,inthe1940'sasignificantbreakthroughwasmade.
themarinebiologistsdiscoveredthatbyraisingthetemperatureofthewater,theycouldinduceoysterstospawnnotonlyinthesummerbutalsointhefall,winter,andspring.latertheydevelopedatechn