Nov 14 2011
Fish harvest in earthen ponds is significantly facilitated by establishing harvest ditches. In addition to facilitating fish harvest, ditches help in drying pond bottom. Depending on pond size and the slope of pond bottom, placing harvest ditches are determined. Ditches could be peripheral especially in large ponds or central in smaller ponds. Establishing harvest ditches …
Permanent link to this article: https://fishconsult.org/?p=1468
Nov 13 2011
Fish harvesting in earthen ponds especially in large ponds is a significant task. Catch ponds are recommended to carry out efficient fish harvesting. For a 4-ha fish pond, a catch pond of the following dimensions will be sufficient; 2.5 m high, 10-m long, and 2-m wide. Catch pond should have a rocky bottom and sides. The …
Permanent link to this article: https://fishconsult.org/?p=1458
Nov 12 2011
This flexible system provide enough protection to Nile tilapia (Oreochromis niloticus) during cold weather in Egypt and in the same time allows fish to disperse in the pond and feed whenever weather gets warmer. Overwinter greenhouses are placed in earthen ponds whereas plastic covers go well below water surface but not reaching pond bottom. The area beneath greenhouses will …
Permanent link to this article: https://fishconsult.org/?p=1419
Nov 11 2011
Credit: Victor Hugo Juarez Pena (Peru). Trasplante de juveniles de camarón de 1,5 gramos y 25 dias de cultivo, en estanque de tierra abastecido con aguas de rio piura. Enero 2010 Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify us if you …
Permanent link to this article: https://fishconsult.org/?p=1342
Nov 11 2011
Credit: David Martin Sykora (Paraguay). Verificacion de construccion de estanques control de niveles 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 will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=1336
Nov 11 2011
Credit: David Martin Sykora (Paraguay) Cosecha en estanque de carpas practica de cosecha con piscicultores
Permanent link to this article: https://fishconsult.org/?p=1330
Nov 07 2011
The most effective way of exchanging water is to first drain the desired amount of the water from the pond bottom. This effectively removes the poorest quality water and detritus which accumulates at the bottom of the pond. Note: We decided not to watermark the photos in order not to upset its clarity. However, we …
Permanent link to this article: https://fishconsult.org/?p=1226
Nov 03 2011
The photo shows a classic view of the spawning nests in earthen ponds for mouth brooder tilapia such as Nile tilapia, Oreochromis niloticus. The nest is built by the male while female joins where the spawning takes place before females incubates the fertilized eggs. If harvesting of tilapia fry is performed in these ponds, it …
Permanent link to this article: https://fishconsult.org/?p=918
Nov 02 2011
Checking tilapia spawning in open system using hapas. The intervals between checkings depend on water temperature and target product whether fry andor eggs. 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 …
Permanent link to this article: https://fishconsult.org/?p=904
Nov 02 2011
The photo shows an open-system for tilapia hatchery in Egypt. This type of hatcheries is based on hapas placed in earthen ponds. The advantage of such system is mainly economical as well as the ability to nurse fry in nursing hapas in this open system. However, because the spawning in this system takes place during …
Permanent link to this article: https://fishconsult.org/?p=896
