Dec 10 2011
Credit: Fidele Kampayana (Rwanda):
The photo shows a divider made of bamboo in an earthen fish pond whereas organic fertilization is practiced. The divider creates a compost enclosure, where the farmer puts organic fertilizers regularly renewable; this divider prevents the spread of manure in pond water because the compost enclosure is installed in the water inlet corner.
Permanent link to this article: https://fishconsult.org/?p=1860
Dec 10 2011
Credit: Fidele Kampayana (Rwanda):
The photos show cut plants piled in the corner of a fish pond during its decomposition (green manure). Cut plants when piled up in pond water, they rot and decompose easily offering optimum environments for bacterial growth. Also, as plants decompose, its contents of nutrients are released enhancing fish production through the growth of plankton (phyto and zooplankton). Live plants serve also in the fixation of pond dikes. Therefore, farm plants (live or cut) may play double roles in dike fixation and in fish nutrition.
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 is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=1854
Dec 10 2011
Credit: Fidele Kampayana (Rwanda)
These photos belong to a private farm in Rwanda where integrated system is being applied between rabbits and mix-sex Nile tilapia (Oreochromis niloticus). The minimum pond size is about 500m2. Fish are stocked at a rate of 2 fingerlings per m2. In this particular pond, tilapia of 5-g average size has been stocked during May and are to be harvested in the following December. The wooden boxes seen in the photos are for rabbits. Each wooden box measures 1m x 1m x 60 cm and hosts 2 rabbits; (2 males or 2 females) and sometimes 1 female with its babies. Ten rabbits are sufficient to provide enough organic fertilization to 1-acre fish pond. Baby rabbits are weaned when they reach 60-day old. The only source of fish nutrition in this system is natural food (phyto and zooplankton) whose abundance is maintained and growth is stimulated by the organic fertilization generated by the excreta of rabbits.
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 is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=1841
Dec 10 2011
Credit: Luis Gallardo (Venezuela)
Poblacion de Rio Caribe, estado Sucre,Venezuela, Comunidad de pescadores artesanales
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 is expected and will be appreciated.
[important]
[/important]
Permanent link to this article: https://fishconsult.org/?p=1825
Dec 10 2011
Credit: Luis Gallardo (Venezuela)
Poblacion de el Morro de Puerto Santo, estado Sucre, Venezuela. Comunidad de pescadores artesanales.
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 is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=1820
Dec 10 2011
Credit: Luis Gallardo (Venezuela)
En Venezuela, la pesca de arrastre quedo prohibida por la nueva Ley de Pesca y Acuacultura a partir del 14 de marzo de 2009.Es el primer país en el mundo que adopta esta decisión. El nuevo texto prohíbe la actividad de arrastre en todas las aguas jurisdiccionales de Venezuela. La decisión del Gobierno venezolano de prohibir definitivamente la pesca de arrastre apunta a preservar para las generaciones presentes y futuras los recursos pesqueros marítimos del país y los delicados ecosistemas marinos donde viven y se reproducen. Una garantía para la seguridad alimentaria de los venezolanos y para el curso de la vida en el planeta.
La pesca artesanal toma los espacios de la pesca de arrastre, mientras la pesca industrial disminuye, la pesca artesanal surte 80% del mercado nacional, estas decisiones van en beneficio a los intereses del pueblo venezolano y son un vivo ejemplo para el mundo, al demostrar que a través de pensamientos humanistas se puede elevar la calidad de vida de un pueblo sin perjudicar al medio ambiente.
Con la eliminación de esta práctica los pescadores venezolanos, los artesanales, los que pertenecen al pueblo, los que aman, protegen y sufren por nuestros mares, realizarán su labor en el marco de la racionalidad y la responsabilidad, de tal modo que se consigne un empleo óptimo de los recursos hidrológicos, lo que permite augurar un desarrollo sustentable del sector pesquero.
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 is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=1813
Dec 05 2011
Credit : G. Venkata Raju (India) – (gvraju_fisheries@yahoo.co.in)
After the repeated failure of Penaeus monodon (giant tiger prawn) culture due to white spot disease, shrimp farmers are now resorted to the culture of whiteleg shrimp, Liptopenaeus vannamei in the brackish water ponds. The picture represents successful operation of Vanamei farming.
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 is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=1781
Dec 02 2011
This 10-week training course is annually organized by the Egyptian International Centre for Agriculture (EICA). This year, the course started on the first of October and will last till the middle of December 2011. Dr. Abdel Rahman El Gamal contributes to the course with series of lectures as well as through the group projects. The 2011 course is being attended by 26 participants from 24 countries; Fredy Konds (Angola), Mahmud Mahmudun (Bangladesh), Felipe Patricio (Bolivia), Bamu Blaise (Cameroon), Abdallah Younous Adoum (Chad), Gabriel Salvo Parra (Chile), Baboucarr Senghore (Gambia), Tommy Joseph (Ghana), Ana Maria Bikie (Guinea Ecuatorial), Gopi Venkata Raju (India), Ibrahim alzubaide (Jordan), Andrea Rahantaseheno (Madagascar), Zawzaw Htwe (Myanmar), Deepak Bhusal (Nepal), Garba Idi Gado (Niger), Jacob Babalola Olalekan (Nigeria), Hussein Ali Mohammed (Oman), David Martin Sykora (Paraguay), Victor Hugo Juarez (Peru), D.S.K. Pitigala (Sri Lanka), Ananda sugathapala (Sri Lanka), Mai Towfig Ahmed (Sudan), Proyrat Chaowajaroenpong (Thailand), Ong-art Kumprasert (Thailand), Natseba Ahab (Uganda), and Han Huong Mai (Vietnam). The two group pictures have been taken during the course for course participants and Dr. El Gamal.
[important]Group picture EICA 2011 (2)[/important][important]
[/important]
Permanent link to this article: https://fishconsult.org/?p=1720
Nov 30 2011
Credit:Deepak Bhusal (Nepal)
Fish and rice is considered a main food to Tharu tribes in Nepal although they use other food of plant or animal origin. Since hunting in forests has been banned, Tharu community began to consume more and more fishes which they catch from rivers, streams and swamps. The photo shows a traditional practice of catching fish by Tharu women in West Rapti River of Nepal using mosquito net made by women and may be woven by men. The catch is mostly used for domestic consumption of Tharu large families and any surplus could be sold in local or adjacent markets.
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 is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=1749
Nov 30 2011
Review: Abdel Rahman El Gamal (Founder of the website and video channel)
Determining the size (diameter) of eggs from female’s ovary by catheterization (biopsy) is being used as a criteria to determine the sexual maturation of females. Catheters could be rigid (made of glass or hard plastic) or flexible (made of polyethylene or vinyl). The leading edge of the catheter should be smooth or rounded to prevent any damage to sampled fish. Moreover, catheters should be of adequate size to match fish size and the genital opening (urogenital pore). Egg sampling this way should be done quickly and with minimum force to minimize physical injury to sampled fish. Improper catheterization may lead to the damage of sphincter muscles. If sphincter muscles got damaged, eggs at the posterior end of the ovary will water-hardened, and the plug is formed. Also, hemorrhage which could result of applying excessive force during introducing the catheter could lead to clotting and blocking of egg flow during ovulation.
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 is expected and will be appreciated.
Permanent link to this article: https://fishconsult.org/?p=1726
