Recent Submissions

  • Estabelecimento do período de veda da pesca artesanal do camarão penaeideo na Baía de Inhambene

    Uetimane, Avene Eduardo (Instituto Nacional de Investigação PesqueiraMaputo, Mozambique, 2018-03)
    Abstract in english: The study to establish the closure season of artisanal penaeid shrimpp fishing in Inhambane Bay, located in the province with the same name in the south of Mozambique, was carried out between June 2013 and May 2014, covering four fishing pre-defined as shrimp londing sits along Bay.The specimens in total of 100 individuals of each species from each of 2 day sampling period used for this work wereobtained from fishermen using beach seine and it covered the periods of live and dead tide of each month for 12consecutive months. The main objective of this work was to study the reproductive biology aspects and size structure of Fenneropenaeus indicus, with a view to establishing the period for the closure season to protect the artesanal fishery database juveniles shrimp in the Bay of Inhambane.Monthly data extracted from the statistical database of small-scale fishing "Pescart" on fisheries statistics over a series of five consecutive years since 2009, have shown that Fenneropenaeus indicus dominated catches with an average of over 65%. At all sampling sites the shrimp lengths variation was not significant, in spite of a very great abundance in Jogo, followed by Nhaduga. Classes with higher frequency range were between 11 and 18 mm. Therefore, it can be hypothesized that juveniles of Fenneropenaeus indicusin the Bay of Inhambane do not remain for a long time in this area. Population structure of the studied species indicated that the amplitude of the variation of the carapace length of the females was between the classes 5 and 29 mm, with molting in classes 10 and 15 mm and with an average value of 15.8 mm while males ranged from 5 to 28 mm with an average value of 15.1 mm.In conclusion the closure season may be stablished for the entire Inhambane Bay, system from October to February, toenable juveniles shrimp to enter the fishing ground, to grow and reach the fishing size to produce sustainable amounts of spawning stock.Abstract in portuguese:O estudo para o estabelecimento do período de veda da pesca artesanal de camarão penaeideo na Baía de Inhambane, província do mesmo nome a sul de Moçambique, foi realizado entre Junho de 2013 e Maio de 2014, abarcando quatro centros de pesca ao longo da Baía, que foram pré-definidos como locais de captura/desembarque de camarão na área de estudo. A obtenção dos espécimens para o trabalho foi feita mediante a aquisição aos pescadores das redes de arrasto para a praia até perfazer um total de 100 indivíduos de cada espécie em cada um dos 2 dias de amostragem, cobrindo períodos de maré viva e morta de cada mês durante 12 meses consecutivos. O objectivo consistiu em estudar aspectos da biologia reprodutiva e estrutura de tamanhos camarão branco (Fenneropenaeus indicus), com vista ao estabelecimento do período de veda para a protecção de juvenis na Baía de Inhambane.Dados mensais extraídos na base de dados da pesca artesanal “Pescart”, ao longo de uma série de cinco anos consecutivos desde 2009, mostraram que Fenneropenaeus indicus dominou as capturas com uma média de mais de 65%. Em todos os locais de amostragem a variação dos comprimentos não foi significante, apesar de se verificar uma abundância muito grande em Jogo, seguida de Nhaduga. As classes com maior frequência estão compreendidas entre 11 e 18 mm, pelo que se pode colocar a hipótese de que os juvenis de Fenneropenaeus indicus na Baía de Inhambane não permanecem durante muito tempo nesta área. A estrutura da população da espécie estudada mostra, que a amplitude da variação do comprimento de carapaça das fêmeas situa-se entre as classes 5 e 29 mm, com modas nas classes 10 e 15 mm e com um valor médio de 15,8 mm enquanto que os machos variam de 5 a 28 mm com um valor médio de 15,1 mm.O período de veda poderá ser definido para toda a Baía de Inhambane a ser implementada a partir do mês de Outubro aFevereiro, para possibilitar que camarão pequeno que dá entrada nesta área de pesca possa crescer e atingir tamanhomaior e produzir quantidades sustentáveis de stock desovante.
  • Teste da eficácia de uma ração comercial de frango para alimentar Tilápia nilótica em tanques de betão em Moçambique

    Murama, José; Malichocho, Celina; Muiocha, Delfina (Instituto Nacional de Investigação PesqueiraMaputo, Mozambique, 2015-10)
    O presente estudo teve como objectivo avaliar a taxa de crescimento dos alevinos revertidos de peixe tilapia nilótica Oreochromis niloticus ou Tilapia nilotica alimentados com a ração do Higest® que é peletizada e apresenta um nível proteico de 30%, sendo uma ração comercial e amplamente disponível em Moçambique mas formulada para frangos.Para efeitos de controlo, foi usada a ração AQUA-plus® que é uma ração extrusada que contém 45% de proteína típicapara peixes e importada da Africa do Sul. O estudo foi conduzido no Laboratório de Pré-testagem do Instituto deInvestigação Pesqueira em Maputo. O aparato experimental era composto por seis tanques rectangulares de betão com3 capacidade de 600 m cada sendo três tanques para o tratamento e outros três para controlo. No período de 91 dias (16 de Agosto a 14 de Novembro de 2013) foram povoados em cada tanque 91 alevinos de Tilapia niloticus cujo peso ecomprimento médio total no início era de 0,68±0,29 g e 3,25±0,48cm respectivamente. O crescimento foiacompanhado por meio de biometrias quinzenais. Diariamente eram monitorados parâmetros físico-químicos da água.As variáveis físico-químicas nos tanques, não apresentaram diferença significativa (P> 0,05), água apresentoucondições limnológicas razoáveis para o crescimento do peixe, com excepção da temperatura que se apresentava baixao com 21,82 C e o oxigénio dissolvido que esteve em torno de 3,14 ± 0,17 mg/L. Os peixes alimentados com a ração decontrolo da AQUA– Plus® obteve relativamente um maior ganho de peso (5,02 ± 0,97 g) e comprimento (3,30 ± 1,32cm) e melhor índice de conversão alimentar (0,33 ± 0,77) em comparação com a ração experimental da Highest® cujoíndice de conversão foi de 0,38 ± 0,85. Os resultados demonstram a necessidade de alimentar alevinos de tilapia com uma dieta formulada para atender as exigências nutricionais específicas de peixes. Desta forma, não se recomenda o uso da ração Higest®, de frangos para alimentar peixes.
  • Pesca experimental de corrico na zona sul da costa de Mocambique

    Moreira Rato, J.D.L. (1990)
    Based on the proven existence of large pelagic fish resources in the southern coast of Mozambique, an experimental fishing trolling program has been designed to study the possibility of resources exploitation through the introduction of trolling technique on artisanal vessels (Project FAO/TCP/MOZ/5653). Although operational problems occurred, the program carried out during the year 1957, provided a collection of data and knowledge. It allowed the preparation of present paper, which could serve as an indicator for a possible implementation of this fishing method in the Mozambican artisanal sector. Sharing this study, the author expects to give a further contribution to the development of a greater pelagic fishery in the waters of Mozambique.
  • Fichas de material

    Faria, A. (1989)
    The main purpose in the preparation of the material cards is to help the supplies concerning UDPPE's and Equipesca's staff in the appraisals of the quantity and quality of the strategic fishing materials ordered to them and in the planning of the distribution of such materials through out their national brokerage network. In the other hand the cards will be also helpful in the knowledge of each of those items utilization
  • Fichas analiticas dos equipamentos de pesca

    Faria, A. (1989)
    The cards reproduced herewith are the direct result of the field surveys and have been the basic documents for the computed yearly strategic materials needs evaluation. They are presented due to the fundamental role played by them and due to their helpfulness regarding different nature studies, such as investment and maintenance costs determination, in terms of imported materials of the artisanal fishing gears of Mozambique.
  • Avaliação dos consumos de materiais estratégicos para a conservação dos engenhos de pesca artesanal de Moçambique e Estudos de constituiçāo tipologia e distribuiçāo de alguns engenhos de pesca artesanal de Moçambique

    Faria, A. (1989)
    This technical report comprises two different studies in terms of their conclusions, but based on the same field surveys: “Yearly consumption evaluation of the strategic materials for the artisanal fisheries of Mozambique” and “Constitution, typology and distribution studies of the Mozambican artisanal fishing gears”. In the first of the above studies, the amount of the materials found in each gear, the number of such gears and the wear factor “r” are subject to a computed data processing, producing the following outputs: list of materials demanded in each Mozambican fishing relevant province; list of materials demanded in the whole Mozambican territory. In the second study the observed gears constitutions are analysed and differences and similitudes among them are searched. The details of maneuver and productivity are referred as well. Attention is drawn to the fact that observations did not take place on the whole Mozambican territory, even not in the most representative but in some considerably important fishing centers with reasonable safety and connection facilities. About the first study, when it was not possible to reach such considerably important centers the determination of the approximate picture of them has been achieved by verbal information of people knowing them very well and by the sources referred here in after. Concerning the second study inferences have not been made. Although a limited number of samples has been collected, the accuracy of it has been checked by inquiry. Speculations have been developed only on observed cases. The surveys have been made by a team, assigned by the directors of UD-PPE and Equipesca, under author’s coordination.
  • Estado actual das principais pescarias da Baia de Maputo

    Sousa, M.I. (1989)
    This report presents an analysis of existing information on fisheries of shad and shrimp. It explains the use of Schaefer model and based on this and other available information, the author suggests the measures to be implemented for a better management of these resources.
  • O desenvolvimento pesqueiro mundial, a variabilidade dos recursos e a gestão

    De Paula e Silva, R. (1987)
    FAO regularly releases studies on the state of fish resources exploitation (The state of world fisheries and aquaculture)and the development of fisheries by geographic areas. The 1983 and 1985 editions provided interesting discussions on fisheries development trends in the world: the majority of sea-facing countries adopted legislation that extends the national jurisdiction on the waters off their coasts (usually indicated within 200 miles) and establishes exclusive economic zones (EEZs). The huge fluctuations in the abundance of some fish stocks are obstacles to fisheries development. This issue, as well as the need to improve research activities and management of fish stocks is also analyzed in this work. The author highlighted the situation of fisheries in the Western Indian Ocean, with particular attention to tuna fisheries and to inland water resources of Mozambique.
  • Recursos marinhos de Moçambique

    Silva, C.; Sousa, M.I. (1988)
    This work aims to be a systematic description of marine fisheries of Mozambique, analysing old and new data. The various fish resources were divided in crustaceans, fish and other resources. The latest revision was presented during the Mozambique/NORAD Seminar on marine resources (1984), which also included fishing potential estimates. Mozambique does not have a national system of statistical data collection that covers all fisheries and this affects in particular the artisanal sector. The industrial and semi-industrial fisheries, however, are well covered and produce reliable data on catch and effort for resources evaluation.
  • Actividade de pesca de emalhe e de arrasto na Baía de Maputo em 1984

    Sousa, M.I. (1985)
    The main goal of this paper is to determine the total catch of fish and shrimp made by driftnet fleet and trawling in Maputo Bay in 1984. This estimate is rather primitive in relation to artisanal fisheries. Fishermen show a lack of motivation for registration and data transmition (mainly due to a lack of mobilization and awareness). Then the quality of data is low and the informative system is not effective. The study is based on records of several organizations (Sulpesca, the Maritime Administration of Maputo, Maputo Fisheries Service) and enriched with information collected by samplers of the Instituto de Investigação Pesqueira of Maputo.
  • Algumas notas sobre a captura e o aproveitamento do tubarão

    Donato, J. (1985)
    The abundance of sharks is notable in the waters of Mozambique but this species has never been the object of a dedicated fishing effort. However, in recent years, some fishing activities have been carried out essentially for capture. The present paper describes status and trends of shark fisheries, utilization and trade of sharks. It is based mainly on working notes made by Mr. Tsnetoshi Mihara, a FAO expert involved in the MONAP Project - Development of coastal and continental fisheries (FI -1).
  • Pesca de pequena escala em Moçambique: possibilidades de desenvolvimento

    Simões, F. (1984)
    The small-scale fishery is a traditional activity and enrolled in social and cultural practices of the coastal communities and some places of the inland waters of Mozambique. Scope for development, major constraints in the small-scale fisheries and best practices are examined.
  • Investigação de recursos de tunideos em Moçambique de 1975 a 1984

    Simões, F. (1984)
    After 1975 a large inventory work of fisheries resources began in Mozambican waters. The tuna stocks, for instance, were virtually unexplored. After 10 years roughly, the oceanographic investigations led to the temporary localization of the most favorable areas for longline fishing or surface gears.
  • Pesca de atum no indico: seu desenvolvimento recente e consequências para os Países da Subregião Sul Ocidental

    Simões, F. (1985)
    In this study the author provided a synthesis of the most relevant aspects of fisheries in Mozambique and Indo-Pacific Region, discussed at the “Seminario sobre avaliaçāo de mananciais de atum na regiāo indo-pacifiqa-jacarta” held in Jakarta from 20 to 22 August 1984. Tens of documents belonging to the Department of Documentation and Information of the Fisheries Research Institute of Maputo and containing valuable information on the tuna fishing in Indo-Pacífic Region were studied in preparation of this seminar.
  • Guia prático de piscicultura

    Ribeiro, F.A.L.T. (1983)
    This disclosure brochure prepared by the IIP Aquaculture Department is an adaptation of the manual "Freshwater fish farming: how to begin" published by FAO in 1979. Written in simple language and provided with numerous diagrams, the text has been set according to conditions and characteristics of Mozambique.
  • Compilaçao de dados sobre fauna acompanhante do camarão em Moçambique

    Cristo, Margarida (1983)
    All the data that the Instituto de Investigaçā Pesqueira was able to collect relating to by-catches of shrimps are presented. The by-catches of shrimp are almost entirely comprised of fish with commercial value. In this paper the author analyzes data for areas separated according to yields obtained.
  • Resultados do programa experimental de fumagen de pescado

    Motta, H. (1983)
    The fish smoking is a traditional process in most african countries and has been gradually improved to the light of changes in forms, techniques and materials. In Mozambique, in particular, this method is not as developed as expected, because it has more advantages in wetlands during rainy seasons, where there is no shortage of salt and in order to give a special taste to the dry fish. In many parts of the country, mainly in coastal areas, the smoking process is made manually by families: a small fire with any type of wood, close to a small amount of fish on a stick, tilted on fire in order to take smoke and heat for several hours. This process is used in the south (Inhaca Island), in central and northern regions (Beira, Nampula) and was also seen in Niassa Lake. This paper presents a program aimed at the application of existing knowledge about fish smoking process and at technology improvement.
  • Captura de tunídeos com vara e isca viva em Moçambique

    Moreira Rato, J.D. (1983)
    Included in the project MONAP GCP-MOZ/006/SWE "Fishing development in inland and coastal waters in Mozambique", a tuna fishing experimental program was carried out in coastal waters of Mozambique, using a catching method with rods and live baits. In order to explore this method and demonstrate the collaboration needed, the present paper has been thought for those interested in an overview of the work to be carried out.
  • Linefish resources annual report for the year 2000. Part 3: towards a management plan for the Mozambican line fishery

    Van der Elst, R.P.; Lichucha, I.D.L.T. (2003-04)
    The dependence of Mozambique on its marine resources is highly significant. There is a need for a plan of action for sustainable use of these important resources, for the benefit of the nation. In this document, some aspects are included, that can be important to take into consideration for a sound action plan for the lin fishery of Mozambique.
  • Linefish resources annual report for the year 2000. Part 2: species profile

    Van der Elst, R.P.; Lichucha, I.D.L.T.; Fenessy, S.; Torres, R.G.A. (2003-04)
    This work refers to the same biological aspects of Chrysoblephus puniceus (marreco), Polysteganus coeruleopunctatus (cachucho) and Cheimerus nufar (robalo). It shows the progress in the biological study of the three species, pointing out at the same time the few discrepancies, which still need to be resolved.

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