Video credit: Emmanuel Ohene Marfo (Ghana) Description: Abdel Rahman El Gamal
This short video would still give an idea about fish farms of earthen ponds located in Kafr El Sheikh whereas about 50% of farmed fish in Egypt is produced. Even though the size of ponds vary according to variety of reasons, production ponds generally vary between one to two hectars/pond. Smaller size ponds are seen in some farms; these ponds are used as nurseries. The video shows some drained ponds which were harvest while most of the ponds are under water. The Small buildings seen in central locations are used for storing batches of fish feed whereas the feed bulk is stored in nearby locations. The farm size usually ranges from 5 – 10 hectars.
The photo shows a type of fisheries extension in which an extension officer is paying an extension visits to a fish farm in a direct contact whereas farmers share their views and express the challenges they are facing throughout the management of their farms. Extension activity is the responsibility of the department of fishery. A second photo shows an extension visit paid to an integrated fish-horticulture farm.
Credit: Lumbwe Kalumba (Zambia) Review: Lumbwe Kalumba and Abdel Rahman El Gamal
The photo shows a fisheries officers while conducting catch assessment survey on Mweru-Luapula Fishery in Luapula Province, Zambia.
Lake Mweru is a freshwater lake located in the Luapula valley on the borders of Northern Zambia and the Democratic Republic of Congo. Its fishery provides food, employment and income to about 400000 local people and supplies about 40 percent of the fish sold on the Zambian market. The steady growth of fish trade whether in Zambia or in Congo has led to a heavy exploitation of the lake’s fish resources necessitated setting and enforcing fishery regulations as managed by the Department of Fishery. The fishery of the lake comprises of bream, Tilapia macrochir, a catfish species, a carp species, tiger fish, elephant fish and sardine-like species.
The second photo shows Department of Fisheries Officers who go on Mweru-Luapula Fishery for data collection. In this case they were conducting Catch Assessment Survey.
Credit: Worawut Koedprang (Thailand) Review: Worawut Koedprang and Abdel Rahman El Gamal
The photo shows a typical shrimp pond after drainage and harvesting. The sediment piles and scatters on pond bottom. In order to ensure a healthy production cycle, these organic piles should be removed before starting a new crop.
Credit: Worawut Koedprang (Thailand) Review: Worawut Koedprang and Abdel Rahman El Gamal
The photo shows a foot bath placed at the entrance of shrimp pond. This simple facility helps to minimize the chances of disease infection/transfer. Potassium permanganate at 10 mg/l or iodophore at 200 mg/l are common disinfectants used in foot bath (foot dip). The foot baths should be of sufficient size and placed to ensure a full use of the baths by comers (staff/visitors). The same concept could be applied to “tire bath” against possible disease infections accompanied by vehicles.
Spirulina is characterized by its high content of protein in regard to the amino acids as well as the essential fatty-acids. The photo which was taken during 1998 shows the culture of Spirulina as carried out in the research facilities at Monastir, Tunisia.
The culture of Spirulina, “Arthrospira platensis” has different purposes that include:
Feeding rotifers, Brachionus plicatilis which is an essential organism used as larval food in the marine hatcheries (powder form of spirulina). Spirulina in its live form is also used as prey for enhancing the nutritional merits of larval food such as artemia. It has been claimed that Spirulina when incorporated properly in the feed, the immunological resistance of the larvae is expected to improve.
The commercial expansion of Spirulina culture targets meeting the growing demands as a food and its interest for health and wellbeing of human and animal.
Away from the utilization of Spirulina as a food, it has been used in the manufacturing of “Spirulina soap” which is commercially promoted as a type of dermatological soap that helps to soften the skin, cleans the epidermal wounds and contributes to the cells healing and regeneration.
Photo credit: Samart Detsathit (Thailand) Review: Abdel Rahman El Gamal
Brine shrimp, (Artemia sp.) are among the key live food provided during the larval stages of marine fish species. Because the content of artemia of lipids and fatty acids is far below what is required for the metabolic energy during the embryonic and pre-feeding larval stages in fish and, the need for artemia enrichment with highly polyunsaturated fatty acids (HUFA) is of value in achieving successful production of fish larvae in terms of survival, larval growth, and health. The Enrichment is done through rearing artemia nauplii on HUFA-containing oils for 18-24 hours before being fed directly to fish larvae or stored at below 10°C so as to minimize the metabolism of HUFA prior to administration.
Photo credit: Temporarily unidentified Review: Abdel Rahman El Gamal
Even though, there are a decent number of freshwater species, only three species are the key farmed species. These species are flathead mullet (Mugil cephalus), thinlip mullet (Liza ramada) and pike-perch (Sander lucioperca). While the two mullet species are native to Tunisia, the third species; pike.perch had been introduced from France and Germany in 1990. Introduced common carp, grass carp and big-head carp have been also exploited for freshwater aquaculture.
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
The two photos are for the Common stingray, (Dasyatis pastinaca) in Elmina fish market along the coast in the Central Region of Ghana. Even though the species is not very common and its marketing is not very good, it is quite expensive.
Credit: Gabriel de Labra and Mrs. Gabriel de Labra (Spain)
The Project has been funded by AECID – The Spanish Agency for International Development Cooperation and implemented by BRAC (local NGO) and AIDA Association (Spanish NGO). The project targeted to improve the quality of life for women and promote sustainable, equitable and participatory development in rural areas of Bangladesh. The project covered Comilla and Chandpur districts.
