There are many approach for The study of marine resources and now in Taiwan is a lot of express , but the damage to net-cage by typhoon is cost much money . The most important study in Taiwan is to use new teconology to update the traditional business and get advanture in international.

Orientador: Timóteo Ramos Queiroz / Coorientador: Eduardo Guilherme Satolo / Banca: Ana Elisa Smith Bressan Lourenzani / Banca: Gilberto Miller Devós Ganga / Resumo: Esta dissertação teve o objetivo de analisar como a logística auxilia no processo de suprimento físico de tilápias, entre piscicultor e frigorífico, tendo como delimitação de estudo a UHE de Ilha Solteira/SP. Além disso, verificou-se quais fatores logísticos influenciam o manejo dessa espécie de peixe. As justificativas levam em conta o cenário atual com maior nível de concorrência entre as empresas e, nesse âmbito, a logística se destaca no planejamento e na condução articulada de uma empresa, independentemente de seu porte. A abordagem teórica da dissertação analisou os aspectos de dois temas: a logística e a piscicultura, contemplando suas características, classificações e conceitos. Dessa forma, no primeiro bloco teórico, foram abordados o sistema logístico e seus conceitos, bem como as definições e características aplicadas ao agronegócio. Além disso, foram realizadas a caracterização do transporte e a logística integrada no agronegócio, com relação a mecanismos de escoamento da produção. O segundo bloco teórico relacionou aspectos da piscicultura, quanto à sua origem e definição, com foco no sistema em tanques-rede e suas características. A metodologia utilizada contou com pesquisa qualitativa de caráter exploratório, com a descrição das etapas da pesquisa, a caracterização da região de estudo e seus aspectos produtivos, a conceituação da ferramenta de busca e as formas de análise. No que tange à pesquisa de campo, entrevistas semiestruturadas entre piscicultores e frig... (Resumo completo, clicar acesso eletrônico abaixo) / Mestre

Made available in DSpace on 2014-06-11T19:22:22Z (GMT). No. of bitstreams: 0 Previous issue date: 2010-08-06Bitstream added on 2014-06-13T18:48:58Z : No. of bitstreams: 1 novaes_af_me_jabo.pdf: 1108978 bytes, checksum: 6edc74fb32aa05ccc7e72ae5d3614ab1 (MD5) / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) / Universidade Estadual Paulista (UNESP) / Nos últimos anos, a demanda pelo pescado tem aumentado significativamente. Atualmente, a pesca, que contribui com a maior parte deste produto, vem apresentando estagnação, ou ligeira queda na oferta em alguns anos como foi o caso de 2006. Em contrapartida, a aquicultura moderna, que passa por grandes avanços científicos e tecnológicos, vem suprindo esta deficiência no mercado. O Brasil, detentor de 12% de toda água doce mundial, deverá se tornar brevemente um grande produtor no cenário mundial. Um dos grandes diferenciais do país, além de possuir clima favorável, é a disponibilidade de grandes reservatórios, que tem sido aproveitado para o cultivo de peixes em tanques-rede. O presente estudo, desenvolvido em piscicultura comercial, no Reservatório de Furnas, curso médio do rio Grande, município de São José da Barra MG teve como objetivo comparar os principais indicadores zootécnicos e econômicos da tilapicultura em sistema super-intensivo (tanques-rede) em duas diferentes dimensões 6 e 18 m3. Foram utilizados 12.960 juvenis machos revertidos da tilápia-do-nilo (Oreochromis niloticus). Durante todo o período experimental, os peixes receberam ração extrusada especial para tilápias em cultivos super-intensivo e a oferta variou de acordo com a biomassa e temperatura da água, iniciando com 8% e decrescendo até 1%. Foram avaliados os seguintes índices zootécnicos: sobrevivência (%), peso médio (g), biomassa (kg), ganho de biomassa (kg), ganho em peso diário (g), conversão alimentar aparente e densidade (kg/m3). A análise econômica foi elaborada a partir da determinação do custo total de produção e do lucro de cada tratamento. Os dados deste estudo permitem concluir que, embora não diferindo nos principais indicadores zootécnicos, a produção de tilápias em tanques-rede de maior dimensão proporcionou menor custo total médio e maior rentabilidade / In the past few years, demand for fish has increased significantly. At present, fishing, which contributes with the largest part of this product, has shown stagnation or slight falling in the offer in some years, as in the case of 2006. On the other hand, modern aquiculture, with technological and scientific improvement, has been supplying this deficit on the market. Brazil, with 12% of the world's fresh water, will probably become one of the greatest consumers soon. Besides the favorable weather, there is also the availability of large reservoirs, which has been used for the growing of fish in net cage. The present study, developed at Furnas reservoir, medium course of Grande river, in São José da Barra/MG, had as its aim compare the economic and zootechnic indicators of tilapiculture in super intensive system net cages in two different dimensions 6 and 18 m3. 12,960 reversed male juvenils from Nile tilapia were used (Oreochromis niloticus). During the experiment the fish received (extrusada) special ration for tilapia in super intensive culture and the offer varied according to the biomass and water temperature, beginning with 8% and decreasing until 1%. The following zootechnic indexes were evaluated: survival (%), average weight (g), biomass (kg), gain of biomass (kg), gain of daily weight (g), apparent nutritional conversion and density (kg/m3). The economic analysis was made after the determination of the total cost of the production and the profit of each treatment. The data in this study allows the conclusion that the production of tilapia in (net cages) of bigger dimension offered bigger rentability

Orientador: Maria Inez Espagnoli Geraldo Martins / Banca: João Donato Scorvo Filho / Banca: Teresa Cristina Ribeiro Dias Koberstein / Resumo: Nos últimos anos, a demanda pelo pescado tem aumentado significativamente. Atualmente, a pesca, que contribui com a maior parte deste produto, vem apresentando estagnação, ou ligeira queda na oferta em alguns anos como foi o caso de 2006. Em contrapartida, a aquicultura moderna, que passa por grandes avanços científicos e tecnológicos, vem suprindo esta deficiência no mercado. O Brasil, detentor de 12% de toda água doce mundial, deverá se tornar brevemente um grande produtor no cenário mundial. Um dos grandes diferenciais do país, além de possuir clima favorável, é a disponibilidade de grandes reservatórios, que tem sido aproveitado para o cultivo de peixes em tanques-rede. O presente estudo, desenvolvido em piscicultura comercial, no Reservatório de Furnas, curso médio do rio Grande, município de São José da Barra MG teve como objetivo comparar os principais indicadores zootécnicos e econômicos da tilapicultura em sistema super-intensivo (tanques-rede) em duas diferentes dimensões 6 e 18 m3. Foram utilizados 12.960 juvenis machos revertidos da tilápia-do-nilo (Oreochromis niloticus). Durante todo o período experimental, os peixes receberam ração extrusada especial para tilápias em cultivos super-intensivo e a oferta variou de acordo com a biomassa e temperatura da água, iniciando com 8% e decrescendo até 1%. Foram avaliados os seguintes índices zootécnicos: sobrevivência (%), peso médio (g), biomassa (kg), ganho de biomassa (kg), ganho em peso diário (g), conversão alimentar aparente e densidade (kg/m3). A análise econômica foi elaborada a partir da determinação do custo total de produção e do lucro de cada tratamento. Os dados deste estudo permitem concluir que, embora não diferindo nos principais indicadores zootécnicos, a produção de tilápias em tanques-rede de maior dimensão proporcionou menor custo total médio e maior rentabilidade / Abstract: In the past few years, demand for fish has increased significantly. At present, fishing, which contributes with the largest part of this product, has shown stagnation or slight falling in the offer in some years, as in the case of 2006. On the other hand, modern aquiculture, with technological and scientific improvement, has been supplying this deficit on the market. Brazil, with 12% of the world's fresh water, will probably become one of the greatest consumers soon. Besides the favorable weather, there is also the availability of large reservoirs, which has been used for the growing of fish in net cage. The present study, developed at Furnas reservoir, medium course of Grande river, in São José da Barra/MG, had as its aim compare the economic and zootechnic indicators of tilapiculture in super intensive system net cages in two different dimensions 6 and 18 m3. 12,960 reversed male juvenils from Nile tilapia were used (Oreochromis niloticus). During the experiment the fish received (extrusada) special ration for tilapia in super intensive culture and the offer varied according to the biomass and water temperature, beginning with 8% and decreasing until 1%. The following zootechnic indexes were evaluated: survival (%), average weight (g), biomass (kg), gain of biomass (kg), gain of daily weight (g), apparent nutritional conversion and density (kg/m3). The economic analysis was made after the determination of the total cost of the production and the profit of each treatment. The data in this study allows the conclusion that the production of tilapia in (net cages) of bigger dimension offered bigger rentability / Mestre

Submitted by Rafael Augusto Oliva null (rafa_oliva_84@hotmail.com) on 2017-01-06T13:32:14Z No. of bitstreams: 1 DISSERTAÇÃO - Rafael Augusto Oliva.pdf: 3041001 bytes, checksum: 51cd384293429ebc1be1dda0d776da54 (MD5) / Approved for entry into archive by Juliano Benedito Ferreira (julianoferreira@reitoria.unesp.br) on 2017-01-11T11:38:34Z (GMT) No. of bitstreams: 1 oliva_ra_me_tupa.pdf: 3041001 bytes, checksum: 51cd384293429ebc1be1dda0d776da54 (MD5) / Made available in DSpace on 2017-01-11T11:38:35Z (GMT). No. of bitstreams: 1 oliva_ra_me_tupa.pdf: 3041001 bytes, checksum: 51cd384293429ebc1be1dda0d776da54 (MD5) Previous issue date: 2016-12-08 / Esta dissertação teve o objetivo de analisar como a logística auxilia no processo de suprimento físico de tilápias, entre piscicultor e frigorífico, tendo como delimitação de estudo a UHE de Ilha Solteira/SP. Além disso, verificou-se quais fatores logísticos influenciam o manejo dessa espécie de peixe. As justificativas levam em conta o cenário atual com maior nível de concorrência entre as empresas e, nesse âmbito, a logística se destaca no planejamento e na condução articulada de uma empresa, independentemente de seu porte. A abordagem teórica da dissertação analisou os aspectos de dois temas: a logística e a piscicultura, contemplando suas características, classificações e conceitos. Dessa forma, no primeiro bloco teórico, foram abordados o sistema logístico e seus conceitos, bem como as definições e características aplicadas ao agronegócio. Além disso, foram realizadas a caracterização do transporte e a logística integrada no agronegócio, com relação a mecanismos de escoamento da produção. O segundo bloco teórico relacionou aspectos da piscicultura, quanto à sua origem e definição, com foco no sistema em tanques-rede e suas características. A metodologia utilizada contou com pesquisa qualitativa de caráter exploratório, com a descrição das etapas da pesquisa, a caracterização da região de estudo e seus aspectos produtivos, a conceituação da ferramenta de busca e as formas de análise. No que tange à pesquisa de campo, entrevistas semiestruturadas entre piscicultores e frigoríficos serviram de base para um estudo múltiplo de caso. Evidenciou-se que as atividades e práticas envolvidas no suprimento físico de tilápias são realizadas com os cuidados devidos nas atividades de despesca, pesagem, carregamento, transporte e descarregamento, sempre com a finalidade de minimizar as perdas por mortalidade, principal fator de impacto na falta de qualidade da produção. Pôde-se identificar que o sistema logístico utilizado é dificultado pela ausência de sistemas de informação voltados ao acompanhamento de cargas e monitoramento remoto das condições dos peixes, a fim de potencializar a gestão da qualidade da tilápia que se destina ao abate. / This dissertation had the objective of analyzing how logistics helps in the process of tilapia physical supply between the fish producer and the fridge, and it has the Hydro-Power Complex from Ilha Solteira as the delimitation of this study. Besides that, it was verified which logistic factors influence the handling of this kind of fish. The reasons for this study take account the current scenario with a higher level of competitiveness between the enterprises and, in this context, logistics is important in the planning and in the articulated conduction of a company, independently of its size. The theoretical approach used in this dissertation analyzed the aspects of two themes: logistics and the fish-farming, showing their characteristics, classifications and definitions. Thus, in the first theoretical part, the logistic system and its concepts were addressed, and the conceptions and characteristics applied in agribusiness as well. In addition, the characterization of the transport and the logistics applied in agribusiness were done, related to the release mechanisms of the production. The second theoretical part related to the fish-farming aspects, about its origin and definition, with the focus on the net-tank system and its characteristics. The methodology used took into account a qualitative research with an exploratory study, with the description of the research stages, the characterization of the studied region and its productive aspects, the conceptualization of the search tool and the ways of analysis. In relation to the field research, semi structured interviews between the fish farmers and the fridges served as the basis to a multiple case study. It was verified that the activities and practices related to the physical supply of tilapia are made with the proper precautions in the fish removal, weighing, loading, transportation and unloading activities between the fish-farmer and the fridge, in order to minimize losses due to mortality, the main reason of lack of quality in the production. We could identify which the lack of the systems information aimed at the cargo tracking and the remote monitoring about the fish conditions, in order to enhance the quality management of the tilapia for slaughter, make the used logistic system more difficult.

Thesis (MScAgric (Agricultural Economics))--University of Stellenbosch, 2011. / ENGLISH ABSTRACT: The rising demand of fish due to population growth coupled by stagnation of fish supply from natural capture has led the world to turn to aquaculture to fill in the gap between fish supply and demand. Aquaculture has emerged as the only sustainable way of supplying the rising population with fish. However the rapid expansion of aquaculture has been met with growing concerns over its environmental effects especially waste produced from aquaculture. The net cage system that is currently being used by small scale trout farmers in the Western Cape is an open water based system where release of waste into the water bodies is inevitable and this put into question the long term sustainability of trout farming using net cages in irrigation dams in the Western Cape. This study sought to compare identified production techniques that can be used by aquaculture farmers to reduce accumulation of organic waste in irrigation dams. The proposed ‘clean’ production techniques include use of net cages fitted with Lift-up system, semi intensive floating tank system (SIFTS) and intergrated aquaculture systems. The study revealed that the intergrated aquaculture system is the most effective way of recovering waste that shows great potential of moving aquaculture towards long term sustainability as it fullfills sustainability dimensions such as ‘zero emission’, nutrient recycling and integrated production. Mechanical methods of recovering waste such as Lift-up system and SIFTS are also effective in recovering particulate waste but however dissolved nutrients are lost into the environment. The study went on further to investigate if economic, environmental and social benefits of recovering waste from irrigation dams outweigh the costs of recovering waste using different production techniques. Models of small scale aquaculture farms using the three identified production techniques were developed and compared with a modelled small scale net cage farm where there was no waste recovery. A comparative financial analysis of the modelled small scale trout farms using alternative production techniques carried out showed that trout production using any of the three alternative ‘clean’ production techniques is financially viable with the SIFTS production technique giving the farmer the highest returns, followed by the intergrated system, then the net cage with a Lift-up system and lastly the net cage system without waste recovery. The second part of the study used the contingent valuation method to estimate the environmental and social benefits of removing waste from dams. Households revealed that they were willing to pay (WTP) R40 on average annually to improve water quality from a state where eutrophication had occurred to a state suitable for irrigation and aquaculture. To improve water quality from a state suitable for irrigation to a state suitable for swimming, households were willing to pay R16.67 annually. If water was to be improved from a state suitable for irrigation to a level suitable for domestic purposes, average willingness to pay (WTP) was R26.17 annually. WTP indicate that besides financial benefits associated with using ‘clean’ production techniques there are environmental and social benefits that will arise to the farm community using water from the irrigation dams. / AFRIKAANSE OPSOMMING: Die stygende vraag na vis as gevolg van bevolkingsgroei, tesame met die stagnering van die aanbod van vis vanaf natuurlike vangste het daartoe aanleiding gegee dat die oë van die wêreld op akwakultuur gerig is om die gaping in die voorsiening van vis te vul. Akwakultuur het ontwikkel as die enigste volhoubare manier om aan die groeiende vraag na vis te voldoen. Die vinnige uitbreiding van akwakultuur het egter toenemende besorgdheid in die nadelige omgewingsimpak, veral ten opsigte van akwakultuurafval, tot gevolg gehad. Die nethokstelsel wat tans deur kleinskaalse forelboere in die Wes-Kaap in oop watergebaseerde sisteme gebruik word en die vrystelling van afval in die wateromgewings wat onafwendbaar is, plaas ’n vraagteken oor die langtermyn volhoubaarheid van die nethokstelsel forelboerdery in besproeiingsdamme in die Wes- Kaap. Die studie het ten doel gehad om geïdentifiseerde produksiestelsels wat deur akwakultuurboere gebruik kan word om die akkummulasie van organiese afval in besproeiingsdamme te verminder, te vergelyk. Die voorgestelde “skoon” produksietegnieke sluit in nethokke wat aan ’n opligstelsel gekoppel word, ‘n semi-intensiewe drywende tenk- stelsel (“SIFTS system” in Engels) en ‘n geïntegreerde akwakultuurstelsel. Met hierdie studie is bevind dat die geïntegreerde stelsel die mees effektiewe manier is om afval te herwin en toon potensiaal om akwakultuur op ’n vohoubare pad te plaas aangesien dit aan die volhoubaarheidsdimensies van geen emissie, voedingstofherwinning en geïntegreerde produksie voldoen. Meganiese metodes van afvalherwinning soos die nethokopligstelsel en die SIFTS-stelsel is effektief in die herwinning van vastestofdeeltjies, maar opgeloste voedingstowwe word steeds in die omgewing vrygestel. Die studie het voorts ten doel gehad om te bepaal of die ekonomiese, omgewings- en sosiale voordele om afval uit besproeiingsdamme te herwin, groter is as die herwinningskoste van die verskillende produksietegnieke. Modelle van kleinskaalse akwakultuurplase wat die drie geïdentifiseerde produksiestelsels gebruik, is ontwikkel en aangewend om te vergelyk met ’n nethokstelsel waar geen afvalherwinning gedoen word nie. ’n Vergelykende finansiële ontleding van die gemodelleerde kleinskaalse forelboerderye met die verskillende produksietegnieke is gedoen en daar is bevind dat enige een van die drie “skoon” stelsels finansieel lewensvatbaar is, met die SIFTS-stelsel wat die hoogste vergoeding aan die boer bied, gevolg deur die geïntegreerde stelsel, dan die nethokke aan ’n opligstelsel en dan die nethokstelsel sonder afvalherwinning. Die tweede deel van die studie het van die voorwaardelike (“contingent”) waardasiemetode gebruik gemaak om die omgewings- en sosiale voordele om afval uit besproeiingsdamme te verwyder, te bepaal. Huishoudings het aangetoon dat hulle bereid sou wees om tot R40 per jaar te betaal om die waterkwaliteit te verbeter vanaf ’n toestand waar eutrifikasie plaasgevind het na ’n toestand waar die water vir besproeiing en akwakultuur geskik sou wees. Om die waterkwaliteit vanaf ’n toestand geskik vir besproeiing te verander na ’n toestand geskik om in te swem, sou huishoudings bereid wees om R16.67 per jaar te betaal. Indien water vanaf ’n toestand geskik vir besproeiing verander sou word na ’n toestand geskik vir huishoudelike gebruik, sou huishoudings gewillig wees om jaarliks R26.17 te betaal. Die “gewilligheid om te betaal” dui aan dat daar bo en behalwe die finansiële voordele om van “skoon” produksietegnieke gebruik te maak, ook omgewings- en sosiale voordele vir die plaasgemeenskap bestaan met die gebruik van die water uit die besproeiingsdamme.