larvicultura de peces marinos em brasil -...
TRANSCRIPT
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Ricardo V. Rodrigues
Fundação Universidade Federal do Rio Grande
Laboratório de Piscicultura Estuarina e Marinha – EMA
Larvicultura de peces marinos em Brasil
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Paralichthys orbignyanus
Fonte: FishBase
Distribuición
Lenguado
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Manutención de reproductores
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2 - 4 células 16 células blástula
gástrula neurula eclosão
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Tempo de eclosão
24h
26h
31h47h
57h
96h
Okamoto (2004)
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Larvas recién eclosionadas
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Brachionus plicatilis
Artemia enriq.
0 5 10 15 20 25 30 35 40 45 50
Nannochloropsis oculata 200-500.000 cél/mL
Náuplio de Artemia
pienso
Protocolo de larvicultura de lenguado
Supervivencia 15 – 35%
Protocolo de larvicultura de lenguado
Brachionus plicatilis
Artemia enriq.
0 5 10 15 20 25 30 35 40 45 50
Nannochloropsis oculata 200-500.000 cél/mL
Náuplio de Artemia
pienso
Brachionus plicatilis
Artemia enriq.
0 5 10 15 20 25 30 35 40 45 50
Nannochloropsis oculata 200-500.000 cél/mL
Náuplio de Artemia
pienso
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Desarrollo del Sistema InmunológicoDesarrollo del Sistema Inmunológico
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Temperatura ideal• 23 C
Okamoto e Sampaio (2012)
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FlounderEffect of temperature sex determination
24%44%
58%
8%
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Effect of salinity on fertilization
Salinity
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Effect of salinity on larval growth
VII Congreso Nacional de Acuicultura - AcuiArica 2018
Salinity
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Salinity
Determination of the isosmotic point
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Salinity
Effect of salinity on juvenile growth
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Effect of temperature on growth of juvenile flounder
Flounder
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Effect of light intensity on growth of juvenile flounder
Flounder
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Effect of photoperiod on growth of juvenile flounder
Flounder
Louzada (2004)
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Juvenile production in RAS
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50 vs 200 % coverage area.
Stocking density
Juvenile stocking density: percentage coverage area
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Growth of flounder reared at different stocking densities.
Initial weight: 1.58g
Stocking density
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Juvenile production in RAS
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Deformidades
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Ocurrencia de deformidades
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Ocurrencia de deformidades
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Ocurrencia de deformidades
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Produção de filé / pele
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Abreu et al. (2005)
Enfermedades
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La Cobia
Rachycentron canadum
Distribuição da espécie
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Broodstock tanks (2 tanks, 15 ton each)
REPRODUCTION
Cobia were reared in RAS for 3 years
Natural spawning in 15 ton tanks
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Histología del ovario y del testículo
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Desarrollo embrionário
⁰
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Sistema de água verde
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Tanques de Larvicultura
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Brachionus plicatilis
.
Nannochloropsis oculata
Protocolo de larvicultura
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Enfermidades bacterinas – Photobacterium
Determinações de doenças e tratamentos
Tratamentos:Diferentes tipos de antibióticos
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Enfermidades Fúngicas
Permanganato de PotássioFormol
Tratamentos:
Determinações de doenças e tratamentos
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Conhecimento das principais enfermidades
Kerber et al. (2011) Romano (2010)
Neobenedenia sp. Furunculosis
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Deformidades
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Crescimento heterogêneo
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Cobia production in Brazil
Cages near Rio de Janeiro
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Cobia production in Brazil
Cages near Rio de Janeiro
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0 4,2Kg12 months≈ 11g/day
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Fazendas atuais em operação com bijupirá
• Escala de produçãoo Pequena
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Aumentar a produção de juvenis
Maricultura Itapema Redemar alevinos
• Produção limitada –verão
• 130.000 juvenis• Elevado preço
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Laboratórios de produção de juvenis
• Apenas 2 laboratórios de produção de juvenis
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Peces Ornamentales Marinos
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Oportunidades no setor
• Mercado Consumidoro Elevada demanda por pescado frescoo Produção é incipienteo Alto valor de mercado
• Produção de juvenis• Rações comerciais de qualidade• Enriquecedores para alimento vivo• Tratamento/profilaxia de doenças
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Frequência reprodutiva8 - 10 dias
Fecundidade 400 - 1000 ovos
7 dias de incubação (dependente T C)
Cuidado parental até a eclosão
Espécies ornametales
Elacatinus figaro
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65
Desenvolvimento embrionário
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Larvivultura
Larvas recém eclosionadas 3,15 0,07 mm
Boca aberta: 0,35 0,02 x 0,23 0,01 mm
Ânus funcional
Saco vitelínico remanescente (24 h)
Positive phototaxia
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Tanques de 15 - 20 L
Brachionus plicatilis (10/mL)
0 5 10 15 20 25 30 35 40
Nannochloropsis oculata 5x106 cél/mL
Náuplios e met. de Artemia (0,1-1 art/mL)
pienso
Larvicultura
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Larvicultura
• Alimento no trato digestivo• Defecação
1 dae
Metamorfosis 28 - 35 th dias ( 8,5 mm)
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Pigmentação 2 - 3 dias despois da metamorfose
Sobrevivência - 10 - 30 %
Momentos de mortalidade
Primeira alimentação
Período da metamorfose
Metamorfosis
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Panorama da Aquicultura, 2015
Publicaciones Técnicas