Credit:David Mendoza Ramirez (Peru)
Desarrollado en estanques principalmente en zonas próximas a los manglares, en los últimos tiempos se han utilizado con éxito zonas costeras arenosas y terrenos alejados de la costa. Los niveles de producción principales son de mayor escala y el principal mercado es el de exportación.
Su principal desventaja consiste en la falta de oferta local de semilla mejorada y costos de producción crecientes debido a nuevos sistemas productivos como son los invernaderos, mientras que los precios en el mercado de exportación tienden a disminuir.
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Credit:David Mendoza Ramirez (Peru)
El cultivo de peces amazónicos se desarrolla a niveles de menor escala y en muchos casos subsistencia, las especies empleadas son gamitana, paco, sábalo, boquichico, pacotana o gamipaco y recientemente se observa en las estadísticas el paiche. El clima para su cultivo es favorable durante todo el año y su principal mercado es el local. Asimismo, en especies tropicales se tiene al camarón de malasia y la carpa como especies introducidas en zonas de selva a niveles de menor escala y subsistencia.
Su desventaja es la limitada oferta de servicios de transporte, energía y comunicaciones, así como la informalidad que impide ver el real crecimiento de estos cultivos y el escaso conocimiento de aspectos económicos, tecnológicos, sanitarios y de mercado.
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Permanent link to this article: https://fishconsult.org/?p=6839
Credit: David Mendoza Ramirez (Peru)
El cultivo se desarrolla en zonas de sierra empleando lagos, lagunas y ríos en sistemas de jaulas flotantes y raceways respectivamente. El nivel de producción es de menor escala (2 a 50 TM/año) seguido por el de mayor escala (más de 50 TM/año). El principal mercado es el nacional y en menor medida el de la exportación. Su desventaja es la dependencia de semilla importada, el incremento del precio del alimento balanceado y el limitado desarrollo de adecuadas estrategias de negociación de privados con comunidades campesinas.
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Credit: Fidele Kampayana and Gilbert Bugimgo (Rwanda)
Most of the lakes and other waters bodies (dams) in Rwanda were found to have moderate to high potential for cage culture. This photo shows the development of cage aquaculture in Lake Burera whereas Nile tilapia, Oreochromis niloticus is the principal farmed species.
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Credit: Fidele Kampayana and Gilbert Bugimgo (Rwanda)
The photo shows the packing and marketing of Tanganyika sardine, Limnothrissa miodon fished from Lake Kivu. The low level of fish processing and products development could be attributed to the artisanal nature of the fisheries of the lake. This species was introduced from Lake Tanganyika to Lake Kivu in 1959. L. miodon is the major catch of the lake.
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Credit: Worawut Koedprang (Thailand) Description: Worawut Koedprang and Abdel Rahman El Gamal
Two of the three photos show the hand grading of heads-on harvested whiteleg shrimp, Liptopenaeus vannamei. It is obvious that women contribute significantly to the grading process which takes place after cold bathing. In order to establish a common understanding in regard to shrimp grading, there is what is known by “Global Shrimp Sizing Reference Guide” that assist shrimp exporters and importers to get a definite idea about shrimp grades. As expected, the size grades vary according to the species, their market size and growth rate. The shrimp grades are usually defined by how many pieces/kilogram.
Because the pricing of shrimp is are greatly influenced by their grades, the third photo shows the weighing of graded shrimp according to their sizes before its transportation to target markets.
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Credit: Worawut Koedprang (Thailand)
The photo shows the nursing tanks for the Barramundi or Sea bass (Lates calcarifer). This facility along with a sea bass hatchery are located in the Coastal Aquaculture Development and Research Center, Surat thani. Nursed sea bass fingerlings are either sold to farmers or released to the nature in a stock enhancement program.
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Credit: Indian farmers and G. Venkata Raju (India)
A tractor is considered an important piece of machinery in fish pond construction. In India, tractors are used for the projects requiring the earth work not more than 200 ha generally. However, finishing work will be done by using the tractors for the purpose of perfect slope for pond bottom and bunds.
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This video shows a common sampling practice of Nile tilapia, Oreochromis niloticus in earthen ponds in Egypt. The attraction to feed is used in the sampling whereas feed is thrown into the pond preferably in the same feeding time and at the same feeding spots. As seen in the video, the sampling was carried out and repeated by two workers in about two minutes using a relatively short seine. The video indicates that the mesh size of this seine was chosen to retain various sizes of tilapia that coexist in the pond. It is believed –based on field observations- that sampled tilapia; in particular Nile tilapia (Oreochromis niloticus) may avoid coming into the feeding spots for a day or two after sampling. Hence, excessive sampling (frequencies) should be avoided.
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Credit: Worawut Koedprang (Thailand)
The first photo shows a pair of clown anemone fish brooder “or clownfish” (Amphiprion ocellaris) while inhabiting a sea anemone. This species is among reef dwellers. The larger fish specimen shown in the photo is a female. The clown anemone fish are monogamous as a brooder mates with the same spouse except in case of accidental missing. The second photo exhibits the parental care whereas a male fish –as usual- takes care about eggs during the incubation period till hatching that takes place after about 7 days from the spawning and fertilization at 28 C. The last photo shows the immediate pre-hatching phase. It is advised to move the embryos during this phase into the hatching tank to protect the hatchlings against the possible predation by parent brooders.
Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you wish to use a picture or more. This is expected and will be appreciated.
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