Photo credit: Samy Ndala (Congo DR) Review: Abdel Rahman El Gamal (Founder of the website) The supersaturation of dissolved oxygen (DO) is often observed near the surface of water bodies as a result of the strong the photosynthetic activity resulting from phytoplankton abundance. This occurs during bright sunlit days in eutrophic water bodies such as …
Tag: fish ponds
Permanent link to this article: https://fishconsult.org/?p=15542
Apr 24 2020
Fish pond de-silting (Zambia)
Photo credit: John Chiseba Mwamba (Zambia) Description: Abdel Rahman El Gamal (Founder of the website) As silt accumulates, the overall capacity of a pond decreases. Fish ponds which were not desilted for years, ponds had become shallow, which may aggravate weed growth. Silt can lead to pond turbidity which interferes with the sunlight penetration and …
Permanent link to this article: https://fishconsult.org/?p=15502
Sep 21 2019
Installation of liners in fish ponds in Kenya
Photo credit: Mercy Maiyo (Kenya) Description: Mercy Maiyo and Abdel Rahman El Gamal (Founder of the website) The photos show the lining process in fish ponds located in Nairobi County (Kenya). The pond shown in the picture is 150 m2. The lining is a valid approach whenever the pond soil is not naturally holding water. …
Permanent link to this article: https://fishconsult.org/?p=15189
Sep 10 2019
Construction of a small fish pond in Madagascar
Photo credit: Marcel Jean Adavelo (Madagascar) – Review: Marcel Jean Adavelo and Abdel Rahman El Gamal (Founder of the website) The inserted picture shows the construction of a small fish pond in Madagascar. Typically, such small-size ponds do not justify the use of machinery. Added to that, the farmer usually does not have the cash …
Permanent link to this article: https://fishconsult.org/?p=15156
Oct 18 2017
Using bamboos to keep predatory animals out of fish pond (Tanzania)
Photo credit: Lucka Paschal and Erick Kiiza (Tanzania) Review: Lucka Paschal – Erick Kiiza (Tanzania) and Abdel Rahman El Gamal (Founder of the website) The inserted picture shows a typical fish pond which belongs to a fish farmer at Songea, Tanzania. Upon the construction of fish ponds, farmers normally use a series of bamboo trees …
Permanent link to this article: https://fishconsult.org/?p=14182
Mar 04 2015
Field analysis of ammonia in fish ponds using color disk kits – Video
Video credit: Carolyn Madalo Chinguo (Malawi) Description: Abdel Rahman El Gamal (Founder of the video channel) This video was filmed in the WorldFish Center-Egypt during a regional training course. This 9-min video demonstrates the field testing of total ammonia in water using the color disk kits. The video starts with water sampling emphasizing how to …
Permanent link to this article: https://fishconsult.org/?p=12450
Nov 25 2014
Liming fish ponds
This 4-slide information bite addresses the liming of fish ponds including the different purposes of liming as well as types of lime and criteria of each lime form. The applications of lime has been addressed and supported by photos. Determining the quantity and need through analysis has been also covered. http://fishconsult.org/wp-content/uploads/2014/11/Liming-fish-ponds.pdf
Permanent link to this article: https://fishconsult.org/?p=12107
Oct 15 2013
Fencing earthen fish ponds against the invasion of flying and crawling predators in Colombia
Credit: Eudes Emilio Sanchez (Colombia) In this picture we see the use a network similar to those used for breeding hens and chickens, is a network of one-inch mesh which surrounds the pond, this prevents the ingress of flying and crawling predators such as birds, flying mammals (bats), marine mammals (otters) and other land animals like …
Permanent link to this article: https://fishconsult.org/?p=9562
Aug 21 2013
Use of stop logs in water inlets and outlets of fish ponds in India (Video)
Video credit: G. Venkata Raju (India) Description: Abdel Rahman El Gamal Source: www.fishconsult.org This video shows the stop-logs used in the water management –in particular depth- in fish ponds in India. The same system was introduced from China into Egypt during 1980s before being changed to piping system. As shown in this video, …
Permanent link to this article: https://fishconsult.org/?p=8828
Dec 04 2012
Field analysis of ammonia in fish ponds using color disk kits
This 3-slide bite addresses the field testing of ammonia in fish ponds and describe how the analysis can be reliable and reasonably accurate. The sampling procedures are covered in this illustrated bite. Moreover, the bite addresses incidences of questionable reasons and means of validating the results. This bite introduces to ammonia components which would be …
Permanent link to this article: https://fishconsult.org/?p=7603
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