Photo credit: Claudia Turra (Uruguay) – Description: Claudia Turra and Abdel Rahman El Gamal In nature, the black catfish, Rhamdia quelen reproduce during most of the year except during the winter months. Being fractional spawners, females release small amounts of eggs several times during the spawning season. The absolute fecundity (number of eggs/female) could range from about …
Category: Aquaculture
This collection of photos includes various farmed species of fin-fish, shell fish, seaweed and others as well as the farming practices carried out in many countries in the world
Permanent link to this article: https://fishconsult.org/?p=6010
Sep 24 2012
Reproduction of black catfish, Rhamdia quelen in Uruguay – (Broodstock)
Photo credit: Claudia Turra (Uruguay) – Description: Claudia Turra and Abdel Rahman El Gamal This species, Rhamdia quelen which belongs to the siluridae family is a South American catfish that is known by Black catfish in addition to other local names. The photo shows a broodstock of Black catfish in “Punta Negra” fish farm, Maldonado-Uruguay. The …
Permanent link to this article: https://fishconsult.org/?p=6003
Sep 19 2012
Preparing Prahok fish product in Cambodia
Credit: Nyro Tum (Cambodia) The photo shows women who living in and around the Tonle Sap Great Lake in Cambodia are enjoying in preparing fish paste-PRAHOK- for their families. Prahok which is a famous type of preserved fish in Cambodia is characterized by its strong and distinct flavor and can be eaten cooked or fried usually …
Permanent link to this article: https://fishconsult.org/?p=5905
Sep 19 2012
Liming of fish ponds in Malawi
Credit: Allan Katola (Malawi) Liming of a fish pond is usually done to correct the pH and improve alkalinity when the soils are acidic and also done after harvesting to control disease causing organisms and others. Note: We decided not to watermark the photos in order not to upset its clarity. However, we trust you will notify …
Permanent link to this article: https://fishconsult.org/?p=5894
Sep 19 2012
Artisanal unit for red tilapia rearing in Colombia
Credit: Glenda Vélez Calabria (Colombia) This photo shows a unit for red tilapia rearing in the Ciénaga Grande de Santa Marta (CGSM). The unit is built from wood and includes nursery cages as well as first and second phase of grow-out for red tilapia. The CGSM is a coastal lagoon located in northern Colombia that is …
Permanent link to this article: https://fishconsult.org/?p=5881
Sep 19 2012
Lighting for zooplankton during nursery and fattening stages of red tilapia in Colombia
Credit: Glenda Vélez Calabria (Colombia) As shown in the photo, artisan lamps are used at night in order to keep the zooplankton on the surface, thereby taking advantage of the productivity of the medium while using less artificial feed during the first and second phase grow-out of red tilapia. Note: We decided not to watermark the photos …
Permanent link to this article: https://fishconsult.org/?p=5873
Sep 18 2012
Spawning and nursing of sea cucumber Holothuria scabra (sandfish) in Vietnam
Credit: Rayner Pitt (United Kingdom) This file addresses the spawning and nursing of sand fish (Holothuria scabra). Technical components begin with the acquision of sea cucumber broodstock and spawning as well as the facilities required. The management of spawning and nursing operations are covered especially in regard to water management and feeding throughout all phases …
Permanent link to this article: https://fishconsult.org/?p=5844
Sep 17 2012
Icing and transporting whiteleg shrimp to the market in Thailand
Credit:Wanna Thawinwan (Thailand) According to a prior agreement, the trader goes to the shrimp farm early in the morning to finalize the purchasing of shrimp and to prepare as well as to transport the shrimp. Icing and transporting the shrimp is the responsibility of the trader. The preparation includes size grading according to the marketing …
Permanent link to this article: https://fishconsult.org/?p=5828
Sep 17 2012
Harvesting and sorting of whiteleg shrimp, Liptopenaeus vannamei (Thailand)
Credit: Wanna Thawinwan (Thailand) The growing season lasts 80-90 days whereas shrimp is expected to reach the market size (80-100 pieces/kg). A recent market survey reveals that the market price of average shrimp is about 4 USD/kg. (price in August 2012). The two photos show the hand-sorting of harvested shrimp as well as a batch …
Permanent link to this article: https://fishconsult.org/?p=5816
Sep 13 2012
Tuna meat display in “La Boquera” market, Barcelona – Spain (color and flavor)
Credit: Gabriel Salvo Parra (Chile) Description: Abdel Rahman El Gamal The swimming nature of tunas influences the color and flavor of tuna meat. The red coloration derives …
Permanent link to this article: https://fishconsult.org/?p=5719