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泥蚶[Arca(anadara0grahosa]分布较广,太平洋和印度洋沿岸皆有。我国主要产地是广东、福建、浙江、山东、河北等地。泥蛐喜栖息在内湾、河口或浅海风浪较小、水流畅通的软泥滩涂上,其栖息的泥层较浅,稚贝多生活在表层下1~2毫米的泥中,大蛐生活在1~3厘米深处。泥奴主要滤食底栖硅藻,此外,还摄食部分其它小型浮游动物、单细胞藻及有机碎屑等。泥姐的生长速度和环境条件有关,特别是与海水比重和潮区影响有关。比重在1.015左右,生长最快,1.022以上生长较慢;在低潮区的比中、高潮区的生长快,蓄水养蛐又比一般养蚣生长快,这为虾… 相似文献
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近日,乳山市海洋与渔业局水产技术推广站在“泥蚶种质资源保护区”的乳山湾进行了泥蚶底播增殖,共投放泥蚶苗3亿粒,播种面积133hm^2(2000余亩).这是该站今年进行的首批泥蚶增殖计划,将对该区域的泥蚶资源起到良好的修复作用。 相似文献
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泥蚶是我省传统的养殖贝类,云霄竹塔海域浪平流畅,海水盐度变幅多在20%。左右,底质适宜,饵料丰富,以及精细养殖技术等优良条件,故泥蚶的肉质细嫩,味道鲜美而成为我省名牌产品。本文就竹塔泥蚶的增养殖技术及生物学特性,生长繁殖规律,蚶苗移植疏养,敌害和灾害防治措施等进行阐述,并根据云霄竹塔海区海洋环境的变化提出今后泥蚶养殖的新措施,为福建云霄竹塔泥蚶这一优质产品的产业化提供科学依据。 相似文献
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在本文所述研究中,对自然海区魅蚶亲贝性腺发育和魅蚶浮游幼体发生规律进行了观测,并通过有关试验,对魅蚶海区采苗有关的采苗器投放时间,采苗器材和采苗水层等技术环节进行了研究。 相似文献
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泥蚶人工育苗及滩涂养成技术研究 总被引:4,自引:0,他引:4
通过对泥蚶人工育苗及养成技术生产试验,从饵料、水质、幼虫培育、附着变态、技术、管理措施等方面进行了探讨,取得泥蚶人工育苗生产性突破。共繁育泥蚶苗40.7亿粒,填补了泥蚶工厂化育苗省内空白。 相似文献
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泥蚶苗种生产中,投喂直接培养的新鲜单细胞藻是泥蚶苗期必不可少的最主要的优质饵料,是蚶苗生长和变态的重要因素,直接关系到育苗的成败。 相似文献
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养虾池底播魁蚶技术研究 总被引:3,自引:0,他引:3
对养虾池混养魁蚶的底质选择、播苗密度、苗种规格、池水调近和魁蚶在虾池中越冬等进行了试验研究,270亩混养试验池,平均亩产对虾106.3kg,魁蚶124.1kg,混养比单养平均亩增效益1438.4元,总增效益38.84万元。技术鉴定认为:本研究成果属国内领先水平。 相似文献
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Preliminary study on zeolite materials used to control of heavy metal pollution during the culture of mud clam Tegillarca granosa L.
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Cai Jihan Lv Yonglin Chen Peng Li Kai Shen Qiyu Zheng Xiangyong 《Aquaculture Research》2015,46(6):1426-1435
To control heavy metal pollution during the culture of the mud clam, Tegillarca granosa L., the isothermal static adsorption capacities of three adsorption materials [natural zeolites, zeolites synthesized from kaolin and zeolites synthesized from coal fly ash (ZFA)] towards Cu2+, Cd2+, Cr6+, Zn2+, Pb2+ and Hg2+ in seawater were investigated. The adsorption capacity of the best material was investigated during the culture of mud clam in an artificially polluted environment. Results showed that the ZFA adsorption capacity was the highest and conformed to the Freundlich model. The theoretical maximum adsorption capacities of the adsorbent towards Cu2+, Cd2+, Cr6+, Zn2+, Pb2+ and Hg2+ in seawater were 3.057, 1.123, 0.325, 13.101, 6.116 mg g?1 and 6.527 μg g?1 respectively. For seawater artificially polluted by six heavy metals, heavy metal adsorption by ZFA followed the order Zn2+ > Cd2+ > Hg2+ > Cu2+ > Pb2+ > Cr6+. For the mud clam culturing experiment that simulated a continuously polluted water source, the Cu2+, Cd2+, Cr6+, Zn2+, Pb2+ and Hg2+ contents of mud clam tissues decreased by 40.9%, 25.8%, 9.6%, 28.2%, ?27.8% and 25.7%, respectively, after 21 days of culturing compared with the contents before the experiment. 相似文献
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泥蚶大面积工厂化育苗高产技术研究 总被引:1,自引:0,他引:1
选择浙江虾池促育熟肥的肥满足度7.0%左右的亲蚶,高密度采卵,低密度孵化,以海泥作附着基,整池移入变态附着池,分批附着。3-5天倒池洗苗一次,以扁藻,金藻,用角毛藻为主,辅投异胶藻,小球藻。1997年在1746m^26能苗池中育出450-630μm*376-570μm蚶苗18.57亿粒,平均单位面积出苗量106.36万粒/m^2,效益显著,专家鉴定认为,本研究居国内领先水平。 相似文献
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从活体文蛤生物学特性入手,对其肥满度及一般化学组成进行了分析;研究了活体文蛤的净化条件和方法;确定了文蛤真空软包装条件和灭菌工艺;提出了一整套适合文蛤真空软包装生产的技术工艺。产品成品申96%以上,常温保藏6个月以上。 相似文献
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乳山湾菲律宾蛤仔养殖滩涂老化修复实验研究 总被引:3,自引:1,他引:2
根据乳山湾贝类养殖滩涂老化的特点,采用了压沙1、3cm和翻耕20、40cm的物理修复方式,经过9个月的养殖实验,结果表明,压沙1cm贝类生物量为4.9kg/m^2,压沙3cm贝类生物量为5.6kg/m^2,翻耕20cm贝类生物量为4.6kg/m^2,翻耕40cm贝类生物量为3.9kg/m^2,对照组贝类生物量为4.1kg/m。。除翻耕40cm修复方式外,其他3种修复方式均显示一定的效果,并以压沙3cm最好。翻耕20cm虽然不如压沙的效果好,但与对照组相比仍然显示较大的优势,每亩约增产330kg余。由于翻耕的修复方式操作简单,成本低,容易推广。 相似文献
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《Journal Of Applied Aquaculture》2013,25(1-2):85-99
Abstract The objective of this study was to estimate the economic impact on the Florida economy generated by the cultured hard clam industry. Florida certified shellfish wholesalers that handle Florida cultured hard clams were interviewed by telephone survey to determine the number and value of clams that they process, the sources of their clams, prices received, and the marketing channels (wholesale, retail, restaurant, and consumer) where they sell their clams. Of the three regions in the state, northwest Florida handled two-thirds of clams cultured in Florida. Firms obtained their clams from within their own region as well as from the other two regions in Florida. The Florida cultured hard clam wholesale and processing industry had $21.8 million in sales in 1999. Around 43 percent of these sales were within the state and 57 percent of them were to out-of-state locations, including international destinations. Regardless of the geographic destination of the cultured clams sold by clam firms, the majority was sold to other wholesalers. The total economic impact of the clam industry on Florida, after accounting for direct, indirect, and induced impacts, was $33.9 million in output, $9.0 million in labor income, and $12.1 million in value added. 相似文献
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通过对文蛤稚贝室外网箱越冬技术研究,解决了文蛤育苗产业化生产中稚贝在北方地区越冬难度大越冬成活率低等技术问题,找出一条适合北方特点的有效越冬方法及途径。2000年10月至2001年5月在盘山县双良育苗场2个室外越冬池,放入20个越冬网箱,稚贝2.0亿枚,稚贝越冬密度44万枚/m^2,平均壳长1000μm,进行了室外越冬试验。在盐度25.8—28.8,pH值7.5—8.5,DO7.0mg/L以上,用直径5.08cm潜水泵在池内间断性循环水,自然水温条件下,越冬后稚贝共计1.612亿枚,平均壳长1095μm(最大l650μm),成活率达80.6%。试验结果表明,其越冬方法在北方地区是可行的,为文蛤苗种产业化生产提供了可靠的技术保障。 相似文献
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菲律宾蛤仔死亡环境条件效应模拟试验 总被引:2,自引:0,他引:2
通过对菲律宾蛤死亡状况及生态环境的调查,初步定了温度,底质类型和底质中的硫化物是导致菲律宾蝓仔死亡可能因子。死亡效应模拟试验采用正交设计对其进行组配,试验结果的方差分析表明,泥温F=76.52〉F0.05(2,2)=19.0,对死亡呈显著影响,而底质类型和底质中的硫化物。 相似文献