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基于改进型支持度函数的畜禽养殖物联网数据融合方法
数据格式 改进型支持度函数 物联网 畜禽养殖
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2017/11/15
物联网技术已广泛应用在畜禽养殖中，针对畜禽养殖物联网中数据异常实时检测以及多源感知数据融合的需求，该文提出了一种畜禽养殖物联网数据融合模型。首先对传感器采集到的原始数据进行一致性检测，确保数据准确性；其次针对来自同类型传感器的多源同构数据，采用基于改进型支持度函数的加权算法进行数据融合处理，提高融合数据准确度；最后根据畜禽养殖物联网编码规则和数据组织格式，对畜禽养殖过程中的异构感知数据进行统一描述...
为掌握罗非鱼在循环水养殖系统的高密度养殖生产过程中的水质变化情况及生长数据等，本文以吉富罗非鱼为养殖对象，构建一套集成有竖流沉淀器、转鼓式微滤机、生物移动床、多腔喷淋式纯氧混合器、滴流式脱气滤塔及消毒杀菌装置等高效水处理技术和装备的高密度系统，并使用该系统进行为期三个月的吉富罗非鱼养殖试验。试验研究结果显示：罗非鱼在高密度养殖条件下摄食和生长情况正常，养殖密度从投入时的3.5 kg/m3快速增长至...
Feasibility of rearing brook char fingerlings in an intensive recirculating hatchery as a complementary species to rainbow trout
aquaculture RAS nursery growth rate salmonid
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2016/1/29
Aquaculture, as the fastest growing agriculture sector, is currently focused on exploring the development of effective intensive recirculating systems (RAS). The use of intensive RAS requires a stable...
Biochemical, haematological and oxidative stress responses of common carp (Cyprinus carpio L.) after sub-chronic exposure to copper
metals fish antioxidant defence
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2016/1/29
The aim of the present study was to investigate the impact of copper-based pesticides (at concentrations
of copper of 20, 30, 40 and 70 礸/l) on one-year-old common carp (Cyprinus carpio L.) during 28...
海南近岸海域夏初角毛藻的种类多样性及其水平分布
角毛藻 种类多样性 水平分布
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2015/12/30
根据2011年5月28日至6月3日在海南近岸海域采集的浮游植物样品的鉴定结果，分析了角毛藻(Chaetoceros)的种类多样性、优势种构成、细胞数量和水平分布。结果显示，海南近岸海域共发现角毛藻28种（含变种、变型），其中西北部海域25种，东部海域22种，南部海域21种；暹罗角毛藻（C.iamense）、拟旋链角毛藻（C.pseudocurvisetus）、并基角毛藻（C.decipiens）和...
为了获得稳定高表达的合浦珠母贝（Pinctada fucata）壳基质蛋白Pearlin基因的重组融合蛋白，该研究从合浦珠母贝外套膜总RNA中扩增得到Pearlin的cDNA，将其ORF克隆至原核表达载体pET32a构建得到重组质粒pET32a-Pearlin，并转化表达宿主菌大肠杆菌（E.coli）BL21（DE3），得到的原核重组融合蛋白pET32a-Pearlin约为34.19 kD。对重组...
Quantifying energy intake in Pacific bluefin tuna (Thunnus orientalis) using the heat increment of feeding
heat increment of feeding HIF archival tag caloric intake hierarchical Bayesian model
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2015/11/16
Using implanted archival tags, we examined the effects of meal caloric value, food type (sardine or squid) and ambient temperature on the magnitude and duration of the heat increment of feeding in thr...
Amino Acid Isotope Incorporation and Enrichment Factors in Pacific Bluefin Tuna,Thunnus orientalis
Amino Acid Isotope Enrichment Factors Pacific Bluefin Tuna Thunnus orientalis
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2015/11/16
Compound specific isotopic analysis (CSIA) of amino acids has received increasing attention in ecological studies in recent years due to its ability to evaluate trophic positions and elucidate baselin...
Deepwater Horizon crude oil impacts the developing hearts of large predatory pelagic fish
oil spill damage assessment heart development embryology
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2015/11/16
The Deepwater Horizon disaster released more than 636 million L of crude oil into the northern Gulf of Mexico. The spill oiled upper surface water spawning habitats for many commercially and ecologica...
Bioenergetics of captive Pacific bluefin tuna (Thunnus orientalis)
Energetic model Growth rate VBGF Pacific bluefin tuna
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2015/11/16
Tuna bioenergetics can be described by the following relationship: the energy available for growth is equal to the food energy minus all metabolic costs. These costs include routine metabolic rate, sp...
Stable isotope analysis of vertebrae reveals ontogenetic changes in habitat in an endothermic pelagic shark
stable isotope analysis elasmobranch ontogenetic shift satellite tagging stable isotope mixing model
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2015/11/16
Ontogenetic changes in habitat are driven by shifting life-history requirements and play an important role in population dynamics. However, large portions of the life history of many pelagic species a...
分析南水北调中线工程因水质保护对渔业发展的影响程度，为陕西省安康市渔业养殖结构调整提供科学依据。[方法] 运用文献查阅法和调查法，分析影响安康市渔业发展的限制性因素。[结果] 从长远看，水质保护对渔业发展产生积极影响；但从短期来看，则会在年产值、养殖技术选择、消费群体选择等方面形成限制性因素。滤食性鱼类养殖年产值仅相当于投食性鱼类养殖收入的10%，渔业养殖结构调整使安康市渔业养殖收入大幅度下降。[...
水生植物滤床深度处理养殖废水过程中抗生素与抗性基因的响应研究
水生植物滤床 水生蔬菜 养殖废水
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2015/8/10
以水生植物滤床为载体，研究了典型抗生素（四环素类 ＴＣｓ、磺胺类 ＳＭｓ 和喹诺酮类 ＱＮｓ）和抗生素抗性基因在不同水生蔬菜种植的水
生植物滤床中的去除和累积情况，并考察了季节变化对此过程的作用影响．通过比较不同植物种植系统中抗生素的去除效率发现，在夏季水芹
系统对抗生素的去除效率分别为 ７１．８３％（ＴＣｓ）、４６．８０％（ＳＭｓ）和 ２１．５３％（ＱＮｓ），明显高于空心菜系统（ＴＣｓ ３３...