Mar 14 2014
Photo credit: Ever Edrey Hernández Cuadrado – (Colombia) Review: Abdel Rahman El Gamal By the late 1930s, bullfrogs had been introduced from the United States into Brazil where the first frog farm outside the United States was established. The real development in the culture of frogs began in the mid-1970s and continued through 1980s, which was …
Permanent link to this article: https://fishconsult.org/?p=10524
Mar 13 2014
Photo credit: Manuel Cano Alfaro (Guatemala) Review: Abdel Rahman El Gamal Introduction: Jaguar cichlid, Parachromis managuensis which belongs to the family Cichlidae is also known as Jaguar guapote and guapote tigre (in Spanish) is native to Nicaragua in Central America and from there it was introduced to several adjacent countries in Latin America and elsewhere. …
Permanent link to this article: https://fishconsult.org/?p=10519
Mar 11 2014
Review: Abdel Rahman El Gamal Consumers of salmon appreciate the wild color of salmon muscles (orange-red) ahead of other quality parameters. In order to produce farmed salmon with the favorable color of wild salmon, xanthophylls which are carotenoid pigments, are used as a food additive in salmonids feed. This additive has been approved by food …
Permanent link to this article: https://fishconsult.org/?p=10512
Mar 08 2014
Source: www.fishconsult.org Credit: Leon Felipe Alviz (Bolivia) The two photos show two common fishing boats operating in Bolivia. The first is non-motorized boats (rawboats) which is called “casco” that means helmet. The boat is made of sandbox evergreen tree “Hura crepitans”, and/or Mara “Swietenia macrophylla” which is known as big-leaf mahogany. This boat operates …
Permanent link to this article: https://fishconsult.org/?p=10504
Mar 08 2014
Credit: Ismael Radwan (Egypt) Source: www.fishconsult.org The photos show the process of the natural spawning of African catfish, Clarias garepinus in Benin. It is believed that the natural spawning when carried out properly, this approach is easier and more economical compared to artificial spawning. The photos show the spawning tanks in which two pairs of …
Permanent link to this article: https://fishconsult.org/?p=10498
Mar 08 2014
The idea of feeding ring is to confine the floating pellets within the zone of the feeding ring. This will enable watching the fish while feeding and in the same time keeping the feed from spreading over the entire surface of the pond water or being drifted by wind action to the dikes where fish …
Permanent link to this article: https://fishconsult.org/?p=10495
Mar 07 2014
Credit: Leon Felipe Alviz (Bolivia) The photos show the night gill netting in Bolivia. According to fishery regulation, the type of nets as well as its mesh size is determined. Of course this will be related to the target species. Generally, predatory species of greatest commercial value are targeted in night fishing whereas fishing boats …
Permanent link to this article: https://fishconsult.org/?p=10487
Mar 06 2014
Credit: Leon Felipe Alviz (Bolivia) The fishing practice shown in the photo is line fishing using baited hooks using large worms and could be meat. The line fishing target large and predator fish species. There is no rod used in this practice.
Permanent link to this article: https://fishconsult.org/?p=10483
Mar 06 2014
Source: www.fishconsult.org The specimen shown in this video is Omani abalone, Haliotis mariae. In nature and in situations of abundant algae supply, the adult abalone tends to stay in their location, waiting for their food to of the algae to be drifted to them by water currents. However, if food turns scarce, abalone crawls over …
Permanent link to this article: https://fishconsult.org/?p=10480
Mar 05 2014
Photo credit: Glenda Vélez Calabria (Colombia) Technical review: Abdel Rahman El Gamal This photo was taken in mundo marino and te mostramos lo que pasa en el fondo, Colombia General: This species is a large marine hermit crab which was originally described as Cancer diogenes. These crabs which are red in color may show sexual dimorphism in regard …
Permanent link to this article: https://fishconsult.org/?p=10476
