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ID:37412423
大小:2.77 MB
页数:38页
时间:2019-05-23
《黄海北部口虾蛄生活最适温、盐环境研究》由会员上传分享,免费在线阅读,更多相关内容在学术论文-天天文库。
1、黄海北却t3'虾蛄生活最适温.盐环境研究中文摘要在不同试验条件下,研究盐度和温度对黄海北部口虾蛄生长的影响。结果表明:口虾蛄生存盐度范围是20‰~40‰;生活盐度范围是24‰~36‰;生长悬适盐度为32‰左右;存活的低盐极限;突变状态下为16‰,渐变状态下为12‰:高盐极限;突变状态下为44‰,渐变状态下为46‰。口虾蛄体重增长的最适温度范围是16~24"C。盐度和温度对口虾蛄呼吸影响的试验表明:当盐度介于24‰~29‰之间.口虾蛄的耗氧量最低,在此盐度范围两侧,无论是盐度增加还是减少,耗氧量都有所增加。口虾蛄的呼吸亦受温度的影响,随温度的升高,耗氧量和耗氧率均呈上升趋势。当温
2、度介于16"C~24℃时,口虾蛄的耗氧率受温度影响不大,耗氧率变化较平稳。当温度在此范围两侧时,口虾蛄的耗氧率变化较大。通过选择适宜的温、盐环境因子,可以使口虾蛄生长速度达到最大.减少长距离运输过程中的死亡率,这对推动口虾蛄增殖放流和养殖业的发展,都有着重要意义。关键词:口虾蛄(Oratosquillaoratoria),盐度,温度,生长,耗氧量黄海北部口虾蛄生活素适溘、盐环境研究AbstractTheeffectsofdifferenttemperatureandsalinityonthegrowthandbreathofmantisshrimp(OratosquiHaora
3、toria)werestudiedunderthelaboratoryconditions.Theresultsshownthat20‰~40‰isthesalinityrangeofmantiSshrimpforIiving;24‰~36‰isthesalinityrangeofitforlife;andtheoptimumsalinityforweightgrowthisabout32%0.Thelimitsalinity:thelowestal'e16‰and12‰intheconditionofmutationandgradualchangerespectively;t
4、hehighestare44‰and46%ointheprocessofmutationandgradualchangerespectively.Theoptimumtemperatureformantisshrimpweightgrowthisabout16~24"C.Anindoorstaticsystemwasemployedinthisexperimenttomeasuretheoxygenconsumptionrateofmantisshrimpundertheconditionofthedifferenttemperatureandsalinity.Thesalin
5、ityisbetween24%0and29‰.theoxygenconsumptionisinthelowlevel,Whilethesalinitybeyondthisrange,therearetendencyofincreasingofoxygenconsumptionofmantisshrimp.Thebreathofmantisshrimpisalsoinfluencedbytemperature,theoxygenconsumptionandrateincreasewhiletemperatureincrease,thetemperatureisbetween16"
6、12and24"C,theoxygenconsumptionrateofmantisshrimpisinfluencedaliale,theoxygenconsumptionrateissaraelevelbasically,whilethetemperatureisoutofthisrange.theoxygenconsumptionofmantisshrimphassignificantfluctuation.Byselectiveagreeabletemperatureandsalinity,toincreasethegrowthspeedofmantisshrimp,a
7、ndimprovethesurviveratewhilelongdistancetransporting,whichtheyplayimportantroleforreleasingandcultureofmantisshrimp.Keywords:Mantisshrimp(Oratosquillaoratoria),Salinity,Temperature,Weight,Oxygenconsumption2黄海北却口虾蛄生活最适瀛、盐环境研究前言海洋,是生命的起源.也是人类赖以生存和发展的
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