Behavior of pike (Esox lucius L.) >50 cm in a turbid reservoir and in a clearwater lake

Abstract – Pike from two different waters were radio-tagged and released immediately upon recovery. In Bygholm Reservoir 19 pike (52–72 cm) and in Lake Ring 15 pike (53–77 cm) were tagged in late February and early March. Bygholm (58 ha) is a shallow eutrophic reservoir and Ring (22 ha) is a natural mesotrophic lake. The positions of the tagged fish were recorded through weekly trackings and a number of 3-day tracking sessions during a 9-month period. Diel activity patterns, home range sizes and habitat utilization by pike was compared between the reservoir and the lake. The pike in the lake occupied larger areas than the pike in the reservoir and were less associated with vegetation. In both waters pike were found more often in, or close to, vegetation during summer than during winter. No difference in average movement of pike was seen between the waters, but pike were more stationary in the reservoir than in the lake. There was no difference in the level of movement between different times of the day, but the diel rhythm of the pike changed significantly over the year. There were large behavioral differences between pike in the lake and in the reservoir and even more variation between individuals within each population.     

Knowledge Assessment,Improved Storage Techniques,and Training of Local Processors and Vendors of Soy Products on Food Safety Practices in South West Nigeria

This study assessed the food safety knowledge, practices, and training needs of local processors and vendors of soy products in South West Nigeria. Ninety women, processors, and vendors were interviewed using a structured interview schedule about their training in food processing; knowledge of food hygiene, spoilage, and poisoning; primary source of water for processing; method of refuse disposal; types of toilet facilities; and hand washing, storage, and packaging practices. Laboratory studies were conducted to improve the storage of soymilk and soy cheese displayed for daily sale and to develop training in good food safety practices for local processors and vendors as an intervention strategy.     

A preliminary classification of fruit-based agroforestry in a highland area of northern Thailand

Tree fruit crops are an increasingly important component of highland cropping systems in northern Thailand. A survey was conducted in three highland hill tribe villages in an upland watershed in Mae Hong Son Province to examine and classify the fruit-based cropping activities used by villagers. Members of ten households in each village were interviewed to establish activities and crop histories for each plot of land held by the household. From the sample of 85 ‘gardens‘ (plots with ten or more fruit trees), a field-level classification structure was developed reflecting function of trees, use and nature of herbaceous intercrops, and pattern of components. Through the classification process, four groups and 11 subsystems of highland tree fruit-based agroforestry were identified. The single most abundant subsystem was ‘mixed home gardens‘. A strong commercial element was also obvious. The survey indicates a very diverse ‘customized’ use of the fruit cropping system. The classification has potential for use in more extensive surveys of the nature of fruit cropping activities in the highlands and as a tool for further analysis in the study area. This revised version was published online in June 2006 with corrections to the Cover Date.     

基于MSP430F149单片机与AM2301传感器的温湿度计设计

为提升家居生活的安全性、便利性、舒适性、艺术性及实现环保节能,需实时监测家居环境的温湿度、亮度等条件,以便更好地了解家居环境并进而对家居环境进行智能控制。鉴于此,基于高性能、低功耗单片机MSP430F149通过单总线方式控制温湿度传感器AM2301,实现了智能温湿度计对家居环境中温度、湿度进行监测。当家居环境中的温湿度过高、过低时都会有相应的LED灯闪烁警告;并且通过LabVIEW设计实现了上位机软件显示温湿度数据,方便通过PC机实时查看家居环境中的温湿度值。为智能家居的环境监测做了基础工作,并方便基于MSP430F149单片机做进一步扩展工作,为实现智能家居奠定了基础。     

农村收入结构变动趋势及相应对策研究

采用对应分析方法,对1995、2000、2005和2010年我国31个省市农村居民家庭人均纯收入按4种收入来源进行分析.结果表明,工资性收入、财产性收入和转移性收入比重稳步上升,家庭性收入比重逐步下降;而惯量数据方面,工资性收入惯量逐步下降,财产性收入、转移性收入和家庭经营收入均逐步增加.说明农民愈加重视家庭经营收入对整个家庭纯收入的影响,对工资性收入尤其是外出打工收入重视度降低,农民外出就业意愿发生了转变.这表明国家出台的各项强农惠农政策有效促进了农村经济改善,农民工回乡创业成为新的农村经济增长点.     

森林人家建设的探索与实践——以浙江永康大陈村为例

浙江省提出建设森林人家,目的是打造一批功能齐全、特色鲜明的森林乡村旅游目的地,助推浙江省乡村振兴战略的实施。通过分析总结永康市大陈村森林人家创建模式,为浙江省森林人家建设以及提升全省乡村振兴的新农村建设提供参考。     

The banana (Musa spp.) — Coffee robusta: traditional agroforestry system of Uganda

Banana (Musa spp.) — with Coffee robusta a traditional agroforestry system in Uganda is a purely mixed cropping system managed on a sustained production basis. The basic primary production is banana as a main food crop and Coffee robusta as the main cash crop. The variety of trees deliberately retained, managed and planted, animals and crops in the system are managed by the farmers to maximize production by supplying timber, fruits, fuelwood, fodder, food, medicinal and other miscellaneous uses.     

云南省参与GMS合作边境贸易结算本币化问题研究

随着经济一体化的推进,人民币在周边国家和地区逐步区域化、国际化已成为不争的事实。本文以云南省参与GMS合作边境贸易结算本币化现象为切入点,阐述了边境贸易结算本币化的现状、分析了正负面效应,提出促进云南省与周边GMS国家边境贸易本币结算和人民币区域化的对策建议。     

陕西省农家小麦品种主要加工品质特性及其聚类分析

研究了测定了陕西省１３１个主要农家小麦品种的粗蛋白含量,籽粒硬度和全麦粉ＳＤＳ－沉淀值,并根据这３个品质性状,利用离差平方和法对供试品种进行了总聚类和分区聚类分析。总聚类分析中,供试品种被聚为４类。