Tag Archive: Guatemala

Jul 23 2014

Rescue efforts on endangered fish species in Guatemala (in Spanish)

Credit: Manuel Francisco Cano Alfaro (Guatemala) Como parte del plan de trabajo incluida en el gobierno de la República de Guatemala, el día 29 de septiembre del año 2006 se realizó la primera liberación de alevines de blanco (Petenia splendida) con el fin de contribuir a la protección de esta especie que es objeto de …

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Permanent link to this article: http://fishconsult.org/?p=11190

Apr 12 2014

Daphnia (Characteristics, feeding, reproduction, reactions to environmental stress)

Photo credit: Manuel Cano Alfaro (Guatemala) Review: Abdel Rahman El Gamal This specimen of Daphnia belonged to the fauna of Lake Amatitlan, Guatemala Introduction: Daphnia is a large genus comprising over 200 species of small freshwater crustaceans that belong to the family Daphniidae and the order “Cladocera”. These small crustaceans of 1–5 millimeters in length are commonly …

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Permanent link to this article: http://fishconsult.org/?p=10710

Mar 15 2014

Production of all-male tilapia using Nile tilapia super males in Guatemala – Video

Note: even though this video is educational video, you are advised to obtain a permission from the site/channel management if you are interested in embedding its link onto your site. Video credit: Manuel Cano Alfaro (Guatemala) Review: Manuel C. Alfaro and Abdel Rahman El Gamal   As been established long time ago, the development of tilapia …

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Permanent link to this article: http://fishconsult.org/?p=10531

Mar 13 2014

Jaguar Cichlid, Parachromis managuensis (habitats, description, feeding, and reproduction)

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. …

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Permanent link to this article: http://fishconsult.org/?p=10519

Mar 02 2014

Use of earthworms (Eichhornia crassipes) in the composting process in Guatemala

Credit: Manuel Cano Alfaro (Guatemala) The photos show the use of nymph as a substrate for the production of the earthworm (Eichhornia crassipes). The use of worms allows the production of compost and simultaneously stabilizes the presence of heavy metals and some other chemicals which could present in the plants. The role of the earthworm …

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Permanent link to this article: http://fishconsult.org/?p=10462

Feb 25 2014

Hatchery-produced tilapia seed in Guatemala – Video

Credit video: Manuel Cano Alfaro (Guatemala) Review: Abdel Rahman El Gamal  and   Manuel Cano Alfaro The video has been taken in one of the few tilapia hatcheries in Guatemala. This particular hatchery provides tilapia fingerlings in the coastal area. The video shows the hatchery facilities including earthen ponds, metal tanks and concrete tanks. The sampling of …

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Permanent link to this article: http://fishconsult.org/?p=10420

Nov 27 2013

Use of Lake Amatitlan water hyacinth in the production of cooking gas in Guatemala

Credit: Manuel Cano Alfaro (Guatemala) The excessive growth of water hyacinth (Eichornia crassipes) in Lake Lake Amatitlan, Guatemala which intended to remove the nutrients load in the lake has stimulated the idea of utilizing a part of water hyacinth in energy production whereas collected plants are placed in a bio-digester in a process whose end product …

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Permanent link to this article: http://fishconsult.org/?p=9979

Nov 27 2013

Eutrophication of Lake Amatitlan in Guatemala – Video

Credit video: Manuel Cano Alfaro (Guatemala) Review: Abdel Rahman El Gamal This video shows the algal scum on the water surface of Lake Amatitlan in Guatemala. The lake receives great amount of the sewage from Guatemala City through different tributaries turning into a completely eutrophic body of water. The heavy nutrients load as represented in phosphorus and …

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Permanent link to this article: http://fishconsult.org/?p=9973

Nov 13 2013

Cleaning the beaches of Lake Amatitlan (Guatemala) (in English/Spanish)

Credit: Manuel Cano Alfaro (Guatemala) The photos show the Personnel Division of the Lake Cleaning, Environmental Education and Interagency Relations work together on Coastal Cleanup work. Se fotos mostrar la Personal de la División de Limpieza del Lago Amatitlan, Educación Ambiental y Relaciones Interinstitucionales trabajan conjuntamente en trabajos de Limpieza de Playas.    

Permanent link to this article: http://fishconsult.org/?p=9880

Nov 12 2013

Production of briquette from water hyacinth in Guatemala

Credit: Manuel Cano Alfaro (Guatemala) This photo shows the utilization of water hyacinth (Eichornia crassipes) as a briquette. The caloric merit of the produced briquette (5048 cal/g) has been found high enough to justify its replacing to firewood. In order to produce this briquette, water hyacinth is milled and compacted under pressure.    

Permanent link to this article: http://fishconsult.org/?p=9867

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