Piscicultura no Sudoeste da Amazônia Brasileira: O Caso de Rondônia em 2009

Anjos, Marcelo Rodrigues dos; Souza, Vânio Carlos de; Santiago, Roberto Claudio; Machado, Nadja Gomes; Biudes, Marcelo Sacardi; Fulan, João Ânderson

doi:10.14688/1984-3801/gst.v8n2p143-152

Cited by 3 publications

(3 citation statements)

References 12 publications

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“…The Western Amazon region, due to its natural characteristics, is favorable to practice of aquaculture in most of its terrestrial and aquatic environments (Brabo et al, 2015). In this overview, Rondônia state has potential and vocation for the full development of aquaculture and the main municipalities that offer favorable conditions for activity are Porto Velho, Cacoal, Ariquemes, Ouro Preto do Oeste, Ji-Paraná, Rolim de Moura and Pimenta Bueno (Anjos et al, 2015). These areas were recommended due to fact that they are close to federal and state highways and favor the structuring of the Geographic Information System (GIS), concentrating information in a digital platform and enabling an analysis of the spatialization of fish farming in Rondônia state.…”

Section: Introductionmentioning

confidence: 99%

Geotechnologies applied to geographic information system (GIS) of Fish farming in Rondônia state, Western Amazon

Albuquerque,

Souza,

Rocha

et al. 2023

Acta Sci Technol

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This research demonstrated a Geographic Information System (GIS) of licensed fish farms in Rondônia state, Brazil. Based on structuring of the GIS, spatial analyzes of location and distribution of fish farms were carried out in relation to highway network; to drainage; to microregions of Rondônia and the verification of the density. Methodological procedure consisted of modeling the Database (DB), whose information was obtained from Secretaria do Estado de Rondônia para Desenvolvimento Ambiental (SEDAM/RO), which holds the references of licensed fish farms processed in SPRING and ARCGIS 9 Arcmap 9.3 software. For spatial statistics, the Kernel density estimator was applied. The main result is the fact that GIS made it quick and easy to search for data and information about the fish farms studied. The highest density was 4937.64 fish farms per unit area in Ji-Paraná microregion, which is located in the Central region of Rondônia state. In thematic mapping, the fish farms showed some spatial dependencies, as follows: I – They depend on main access, highway BR 364. II – The cluster of fish farms is arranged where there is greater availability of water, that is, they depend on water courses. Therefore, positioning and distribution of fish farms take place in the three main microregions, Ji-Paraná 40.30% of licensed fish farms, followed by microregions of Cacoal 16.02% and Ariquemes 15.87%.

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Section: Introductionmentioning

confidence: 99%

Geotechnologies applied to geographic information system (GIS) of Fish farming in Rondônia state, Western Amazon

Albuquerque,

Souza,

Rocha

et al. 2023

Acta Sci Technol

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“…No cenário nacional da piscicultura, a região Norte contribuiu com cerca de 29,5% o que representa uma produção de 149.745 toneladas, na qual o estado de Rondônia foi o maior produtor nacional com 90.636 toneladas gerando cerca de R$ 624.039,00 para o país (IBGE, 2017). A piscicultura nesta região tem crescido em razão do crescimento da demanda de pescado e devido as condições propiciais ao desenvolvimento de uma produção continua, o que tem tornando a piscicultura uma das atividades econômicas locais mais importantes (ANJOS et al, 2015).…”

Section: Introductionunclassified

Avaliação da qualidade da água em pisciculturas de Macapá, Amapá

Ladislau

Takiyama

Souza

et al. 2020

RICA

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A piscicultura é uma atividade de grande importância econômica, no entanto, o crescimento da atividade tem ocasionado impactos ambientais, com alterações aos ecossistemas aquáticos. O objetivo do presente estudo foi avaliar a qualidade da água e os impactos gerados pelos efluentes de piscicultura desenvolvida no município de Macapá, Amapá. Foram feitas análises da qualidade da água em dois viveiros, através do monitoramento mensal das variáveis físico-químicas e biológicas no período de janeiro a outubro de 2012. As variáveis analisadas foram oxigênio dissolvido, pH, condutividade elétrica, transparência, turbidez, cor aparente, sólidos totais dissolvidos, cloretos, dureza total, ferro total, temperatura da água, temperatura do ar e clorofila-a. Para a comparação das médias dos resultados das variáveis físico-químicas e biológica (clorofila-a) dos viveiros, aplicou-se o teste t de Student. Também se buscou compara os resultados do estudo com os limites determinados pelas Resoluções do CONAMA. Constatou-se diferenças entre as médias dos parâmetros oxigênio dissolvido, transparência, dureza total, cloretos, temperatura da água. Os valores de clorofila-a estiveram acima do limite determinado pelo CONAMA. Os resultados demonstram que os viveiros apresentaram uma alta carga de nutrientes, com elevação dos valores de clorofila-a, cor aparente, turbidez e diminuição da transparência. Constatou-se a influência do manejo e da sazonalidade sobre o comportamento dos parâmetros. A alta carga de nutrientes nos viveiros, traz uma preocupação em relação ao despejo dos efluentes e seus efeitos sobre os ambientes adjacentes.

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“…In the last years, there was a significant growth in the Brazilian aquaculture, especially in the Northern region. This large volume of production indicates a considerable amount of waste that represents a significant potential to be used in animal feed (Anjos et al, 2015;Arruda, 2017). However, the use of fish waste as alternative feed in poultry diets is not an innovation in the poultry industry, especially due to their large use in regions that present logistics barriers to grain and high-cost feedstuffs (Jafari et al, 2006;Cruz et al 2016).…”

Section: Introductionmentioning

confidence: 99%

Fish Waste Oil in Laying Hens* Diets

Brelaz

Cruz

Brasil

et al. 2019

Braz. J. Poult. Sci.

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The present study aimed to evaluate increasing levels of fish waste oil in laying hens diets on performance, egg quality, and sensory features of the eggs. 192 Hisex White laying hens with 29 weeks of age were used, with water and food ad libitum. The experimental design was completely randomized consisting of eight treatments corresponding to the inclusion levels of fish waste oil (0, 0.5, 1.0, 1.5, 2.0, 2.5, 3.0 and 3.5%) in the diets, with four replicates of six birds each. Data collected were subjected to polynomial regression at 5% of significance. Differences (p<0.05) were observed in feed intake and egg mass. Feed intake increased until 2.50% of fish waste oil in the diets. Differences were not observed (p>0.05) in all variables analyzed. Differences were observed (p<0.05) in flavor. Eggs from birds fed diets up to 2.00% present better acceptance by the tasters. Above this level, there was a considerable drop in acceptance. From these results, the present study indicates that the use of fish waste oilin laying hens diets did not affect the egg quality. However, its high inclusion negatively affected the feed intake, egg mass, and egg flavor.

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Piscicultura no Sudoeste da Amazônia Brasileira: O Caso de Rondônia em 2009

Cited by 3 publications

References 12 publications

Geotechnologies applied to geographic information system (GIS) of Fish farming in Rondônia state, Western Amazon

Geotechnologies applied to geographic information system (GIS) of Fish farming in Rondônia state, Western Amazon

Avaliação da qualidade da água em pisciculturas de Macapá, Amapá

Fish Waste Oil in Laying Hens* Diets

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