Even today, the manner in which modern Egypt has melded with the ancient world is positively astounding. One cannot help but notice that the pull of the ancient world is still very much a part of modern cities such as Cairo and Alexandria. While it would take volumes to write a comprehensive guide, we have attempted to provide an introduction to many of the fascinating aspects of daily life in ancient Egypt.
The expressions capture and culture fisheries are self-explanatory. In the former, one reaps the aquatic harvest without having to sow, whereas, in the latter, one has to sow the seed, nurse it, tend it, rear it and harvest it when it grows to marketable size.
Examples of capture fisheries are the natural fisheries of the seas, estuaries, rivers, lagoons, large lakes etc. Pen culture, cage culture, culture in running waters, in recirculating systems and in reconditioned water are special types of aquaculture.
All shades of intermediate stages between true capture and culture fisheries exist such as in man-made-lakes, which are stocked extraneously but where no manuring, fertilizing and feeding are generally done.
The principles of management of capture and culture fisheries are very different from each other. In the case of capture fisheries one has to attempt to harvest maximum sustainable yield by regulating fishing effort and mesh after taking into account parameters of population dynamics such as rates of recruitment, natural and fishing mortalities, fish growth and size at which recruitment occurs.
Management of capture fisheries requires knowledge of the dynamics of the fish populations under exploitation. The extended exclusive economic zone of miles brings into focus the national and international complexities of regulating the capture fisheries of the seas and the oceans and apportionment of the marine harvest because fish populations do not abide by man-made boundaries.
In the case of culture fisheries, no detailed knowledge of the population dynamics of the cultivated finfish or shell fish is involved.
Here, one has to breed, if one technically can, the chosen fish under controlled conditions, if it does not breed naturally, and develop fish husbandry practices so as to be able to formulate economically viable technologies.
For effective aquaculture, one has to gain familiarity and control water quality to enhance its biological productivity; one has to understand fish nutrition so as to be able to formulate nutritionally balanced fish diet; one has to delve deep into fish genetics so as to be able to evolve new varieties and strains which bestow commercial advantages to the product in terms of superior growth rate, nutritive value, bonelesness, taste, odour etc.
With this background information, a definition of aquaculture can be attempted. The crop may be that of an animal or a plant. Naturally, the organism cultured has to be ordained by nature as aquatic.
Tilapia, carp, trout, milkfish, bait minnow, yellow tail, mullet, cat fish. Shrimps, prawns, oysters, mussels, pearl oyster for cultured pearls eg. Japanese pearl oyster, Pinctada fucata. Water chestnut Trapa natans.
During the last decade or so there has been noticeable a global upsurge for aquaculture. Some of the factors which have contributed to the upsurge are: Increased and continuously rising cost of fishing operations due to steep rise of the price of fuel.
Fear of reduction in marine fish landings by countries that depend on fishing in the territorical waters of other countries as a result of the new laws of the sea of miles exclusive economic zone.
A persistent demand in most developed countries for high cost species like shrimps and prawns.
This has greatly promoted interest in aquaculture in countries that wish to increase their foreign exchange earnings. The behaviour of one of the world's most productive capture fisheries viz.
Factors which have been unfavourable to the development of aquaculture are: Shortage of fertilizers in most developing countries and their allocation to agriculture.
In this respect, there is a measure of conflict between agriculture and aquaculture. Increasing prices and even the availability of fish meal, which, as stated earlier, is the ingredient of most fish-feeds. This is linked with the Peruvian Anchovy crisis, which, apart from aquaculture, adversely hit agriculture, through scarcity of guano and fertilizer, and poultry industry through scarcity of fish meal.
This has led to search for cheaper protein substitutes in fish feeds and spurt of research activity in that direction in different countries. While a general global environmental consciousness has ameliorated aquatic pollution and has thus helped fish culture, aquaculture itself is considered by some as a polluting agent, through release of water containing fish metabolites leading to eutrophication in the recipient waters, which may be a stream or a river or another kind of natural water-body.
Discharge regulations which are applicable to aquaculture by authorities in some countries.A widely published author on the subject, Robert Morkot presents a clear introduction to the origins, history and culture of Ancient Egyptian civilization.
This excellent addition to the popular family of books on ancient peoples offers a broad coverage of Egyptian life.3/5(2). Learn for free about math, art, computer programming, economics, physics, chemistry, biology, medicine, finance, history, and more.
Khan Academy is a nonprofit with the mission of providing a free, world-class education for anyone, anywhere. The Egyptians. Articles on the culture, history, and peoples of Ancient Egypt.
Ancient Egypt: Pharaohs, Pyramids, Hieroglyphs, and Everything Else Ancient Egypt, centered in North Africa in the Nile Delta, is arguably the most powerful and influential civilizations of of the ancient world.
It’s political structure, language, religious. Explore the British Museum's resources on Egyptian history, life, geography, religion, and customs. Hyperlinks to non-FAO Internet sites do not imply any official endorsement of or responsibility for the opinions, ideas, data or products presented at these locations, or .
Sep 14, · In the Archaic Period, as in all other periods, most ancient Egyptians were farmers living in small villages, and agriculture (largely wheat and barley) formed the economic base of .