Customers’ Perception of Fish Fast-Casual Restaurants

The objective of the research is to explore Italian customers’ perceptions of fish and seafood fast-casual foodservice restaurants, so to identify expected food, environmental, and organizational attributes’ importance. The sample includes 600 fish and seafood customers interviewed face to face. Data elaboration included an exploratory factor analysis on fast-casual food and restaurant attributes, followed by chi-square and ANOVA to profile customers’ perception towards the level of importance of the factors. Hygiene, personnel, and sensorial attributes are the three most important factors for all groups of customers. Gender and age are the most differentiating socio-economic characteristics. This study is a pioneering research on a restaurant format expanding in European countries and validated an attribute assessment scale for fast-casual restaurants. Results suggest the following managerial implications useful to define investment strategies: guaranteeing high hygiene standards, investing on personnel quality, offering tasty and good food, and targeting strategies focused on customers’ lifestyle.     

The impact of increasing non-agricultural market access on EU demand for imported fish: implications for Lake Victoria chilled fillet exports

Import demand functions for origin-specific chilled fish filletsto the EU using a Rotterdam-type production model are estimated.Results are used to project the impact of the EU expanding marketaccess to non-African countries. The preference erosion argumentsuggests that the lower tariffs will erode the competitive positionof African countries; however, when the total impact of pricesis considered, expanding preferential access may result in increasedimports from African countries. If tariffs are reduced to zero,the total EU imports are projected to increase by 4.1 per centresulting in a 2.2 per cent increase in chilled fillet importsfrom Lake Victoria.     

观赏渔业:部市型水产业的新亮点--上海发展观赏渔业的思考和建议

观赏渔业是都市型水产业发展的经济增长点，本文从观赏鱼需求和供应两方面分析了发展观赏渔业的潜力和存在的问题，在发展观赏渔业的理论和实践措施方面作了积极的探索。     

克隆技术及其在水产上的应用

为让大家进一步了解动物克隆技术，本文简要地介绍了克隆技术的基本概念和发展史。并着重介绍了我国鱼类克隆的研究进展。作者以鲤鲫移核鱼和草鱼肝细胞克隆鱼为例，分析了克隆技术在培育鱼类新品种上的特点和优势。同时阐述了克隆技术在水产育种和种质保存上的应用前景。     

发展网箱养鱼 致富库区农民

本文介绍了山东省枣庄市发展网箱养鱼，致富库区农民的经验，并着重阐述了科技推广应用、社会化服务和加强组织领导对发展网箱养鱼的意义和作用。     

Generating Enhanced Fishery Rents by Internalizing Product Quality Characteristics

This paper demonstrates howadditional rents are generated in a fisherycharacterized by intraseasonal variation infish characteristics, including size,condition, and composition. Based on anexpanded conceptual model of the optimalharvest rule, fish characteristics affect preand post harvest production yields and outputprices. A dynamic empirical model, which uses asystem of quality characteristics and anhedonic equation, illustrates the complexrelationships and management choices associatedwith internalizing seafood qualitycharacteristics in a hake fishery. The modelretains the regulated open access managementsystem, but controls intertemporal andintersectoral quotas, production portfolios,and total allowable catch. Results demonstratethat including revenue-side effects frominternalizing fish quality can generatesignificantly greater rents and reduce therelative benefits of increased productionyields. If excluded, bioeconomic models canunderestimate the level of regulatory rentdissipation and overemphasize managementobjectives such as full utilization, whichcould misdirect processing decisions and resultin a suboptimal resource management plan.Implications for data collection,multidisciplinary analysis, and improvements inmarine resource management are discussed.     

Partial International Coordination in the Great Fish War

This study extends the great fish war model of Levhari and Mirman [Levhari, D. and Mirman, L. (1980) Bell Journal of Economics 11: 322–344] by incorporating a multiple country context into the model and investigates the existence of a partial coordination Nash equilibrium. First, findings of this paper suggest that a partial coordination scheme is sustainable only in limited cases. Any coalition that has more than two member countries cannot be sustained. Second, the existence and the number of coordinating countries depend critically on the magnitude of the biological and preference parameters. Finally, if the coalition is assumed to be a dominant player, there always exist one or two welfare-improving sustainable coalitions and the size of the sustainable coalitions depends on the parameters of the problem.     

基于投入--占用--产出技术的自然资源乘数分析

本文在简要介绍投入—占用—产出系数表的基础上,给出了考虑固定资产占用的资源乘数计算公式。然后,以青岛市为例,研究了青岛市的海洋鱼类资源乘数。结果表明,1997年青岛市渔业部门的海洋鱼类资源乘数,考虑固定资产占用比不考虑固定资产占用有明显增加;考虑经济系统对生态系统的影响比仅考虑生态系统对经济系统投入时的资源乘数也有所增加;进一步考虑生态系统内部各成分之间的联系时,资源乘数又有所增加。     

加快开发南方草地资源,促进生态经济建设

我国南方草地资源丰富,发展草业潜力极大。本文就南方草地的现状、类型及发展草业的途径进行了探讨。     

基于小波神经网络的鱼类价格预测研究

鱼类市场价格是影响渔民收益的重要因素,因此如何能够准确分析和预测鱼类的价格是一个十分重要的问题.论文在考虑了BP网络原形的一些缺点和不足,尝试在传统BP算法的基础上将网络神经元中的激励函数换成小波子函数,组建成的小波神经网络.通过对鲈鱼价格的预测,验证了小波神经网络的可行性,然后基于阿里巴巴的鲈鱼价格的历史数据,验证了该方法的合理性.最后开展对新疆乌伦古湖水产综合基地三类主要鱼类价格预测的实证研究,研究结果表明河鲈和梭鲈的价格会有小幅的波动,但高白鲑的价格会有大幅的提升.因此,小波神经网络作为一种传统神经网络的改进,可用于预测鱼类价格的短期预测,为水产基地的决策提供依据.