Aquaculture
« Previous Entries Next Entries »Japan scientists study oyster ‘language’
Wednesday, December 14th, 2011Scientists in Japan have begun studying the “language” of oysters in an effort to find out what they are saying about their environment. Researchers are monitoring the opening and closing of the molluscs in response to changes in seawater, such as reduced oxygen or red tide, a suffocating algal bloom, that can lead to mass [...]
Tilapia Hatchery Management & Fingerling Production
Thursday, December 8th, 2011To meet the demand for tilapia fingerlings, more private hatcheries should be established. Although some fish-farmers specialize in fingerling production, many of them are engaged in fingerling and food fish production simultaneously. As the indury expands, farmers realize the importance of using good quality fingerlings. As long as the demand for fingerlings exists, a well-managed [...]
Biology of Tilapia
Wednesday, December 7th, 2011Tilapia is a member of the family Cichlidae. Three genera are well-known namely Oreochromis, Tilapia and Sarotherodon, of which nile tilapia belongs to genus Oreochromis. This species is naturally distributed in Palestine, the Nile River as well as most part of African river and lakes. It was introduced in the Philippines in 1972. It’s rising [...]
Bioconversion of Organic Residues for Rural Communities: Organic residues in aquaculture
Thursday, November 24th, 2011Introduction The use of organic residues in aquaculture is best discussed with awareness of the following facts about aquatic biology: (i) Limitations to biological production in fresh, brackish, or ocean waters are predominantly dissolved nutrients and/or food as well as shelter or substrate. Seasonality and intensity of the input of solar energy are also important. [...]
Gabay sa Pag-aalaga ng Hipon (Shrimp)
Wednesday, November 23rd, 2011Ang hipon ay kinikilalang pinaka-popular na shellfish sa Pilipinas dahil sa kakaibang lasa nito. Isa rin ito sa nangungunang ikinakalakal ng ating bansa sa dahilang ang hipon ay makikita sa iba’t ibang bahagi ng ating bansa at madali pang paramihin. Mahusay na pagkukunan ng mataas na protina, bitamina at mineral ang hipon. Mababa ang fat [...]
How to Make Fish Drying Racks
Friday, November 18th, 2011Fish Drying Drying is one of the simplest ways to preserve fish. To get the best results it must be done quickly and cleanly. Water occurs naturally in the fish’s body. When a fish is dried, water that is close to the skin or cut surface is lost first. Water that is deep in the [...]
Fish Know to Avoid the Spear
Wednesday, November 2nd, 2011Fish are not as dumb as people sometimes think. Marine scientists have found that fish that are regularly hunted with spearguns are much more wary and keep their distance from fishers. In investigating the effects of marine areas closed to fishing by customary laws, an international team of researchers working in the Pacific found [...]
Artificial Reefs and their replacement
Wednesday, November 2nd, 2011People are destroying coral reefs and other important fish habitats at an unprecedented rate. Destructive fishing practices and pollution are the two main causes. While many NGOs are very actively trying to convince the worlds politicians to take action to prevent harmful practices, practical actions are also being undertaken by many local communities. As coral [...]
Better Freshwater Fish Farming: Raising Fish in Pens and Cages
Sunday, October 30th, 2011Introduction Raising fish in pens and cages 1. In booklet No. 30, Better freshwater fish farming: the fish you were told that you can put your baby fish in a pen or a cage in one of your fish ponds until you are ready to use them. Put the baby fish in a pen or [...]
Better Freshwater Fish Farming: Further Improvement
Saturday, October 29th, 2011Introduction 1. You learned how to begin growing your own fish in Booklet No. 27, Freshwater fish- farming how to beg. Growing fish 2. Booklet No. 29, better freshwater fish- farming: the pond told you how to build a bigger pond and how to build it better. Build a bigger pond 3. Booklet No. 30, [...]
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