importance of fish culture

7/27/2019 Importance of Fish Culture

1/14

Importance of fish culture:

The production of fishes is not in harmony with the population growth. So fish culture is very important in

Bangladesh-

a. Meet the demand of protein: At present only 4 gram of protein is available per head, but each person

should consume at least 12 grams of protein. To meet this demand, it is necessary to produce annually 26

lac tons of fishes in our country.

b. Large amount of foreing currency is earned by exporting fishes and fish products.

c. We can earn livelihood by catching fish, selling nets and instruments to catch fishes and by working in the

fish farms.

d. A large amount of money can be earned by engaging oneself with fish processing industries.

e. We can compensate the deficit of protein through the increased production of fish.

f. By cultivating fish we can develop our national economy.

posted byteaching biology at1
http://www.blogger.com/profile/10116100145944101791http://www.blogger.com/profile/10116100145944101791http://www.blogger.com/profile/10116100145944101791http://rashadbiology.blogspot.com/2010/06/importance-of-fish-culture.htmlhttp://rashadbiology.blogspot.com/2010/06/importance-of-fish-culture.htmlhttp://rashadbiology.blogspot.com/2010/06/importance-of-fish-culture.htmlhttp://4.bp.blogspot.com/_oWU3_mN-tqs/TA6SBkuNCwI/AAAAAAAAAA4/OHXI-yjxahk/s1600/images+2.jpghttp://rashadbiology.blogspot.com/2010/06/importance-of-fish-culture.htmlhttp://www.blogger.com/profile/10116100145944101791


2/14

Importance of AquacultureAs the human population continues to grow, finding means to feed thosepeople is one of the most important challenges faced around the globe. Evenin troubled economic times, men, women and children need to eat.

And a healthy diet, high in protein is necessary to ensure that growing

population does not succumb to sickness and disease. Fish and other aquatic

organisms fit the model for healthy sources of protein.

Harvests of wild sources of fish, crustaceans and other aquatic speciescannot keep up with the demand presented by the growing human population.Trying to match demand throughcommercial fishinginterests would eventuallyresult in overfishing and the loss of those species entirely. Therefore, whileaquaculture is required to meet the human demand, it also relieves the strainon wild species to allow them to continue to be a significant source.

The role of aquaculture in ensuring a consistent supply of aquatic species forhuman consumption cannot be overstated. Medical research into the healthbenefits of frequently eating fish is plentiful. One popular buzz word within the

healthy eating movement isOmega-3 fatty acids, which are typically found inmost fish. Multiple research studies indicate these fatty acids help reducemany forms of cancer and promote healthy brain tissue. Eating fish regularlyhas also been shown to reduce the risk of heart disease through reducing theprobability of clot formation, lowering blood pressure and increasing the goodcholesterol levels in the blood stream.

Some studies also suggest inclusion of fish into a healthy diet can have a

positive impact on the development of Alzheimer's disease in elderly persons

or blood sugar levels in diabetics.

Fish and aquatic species in general are a much healthier source of proteincompared to livestock commonly consumed. Beef, pork and chicken all havetheir positive attributes, but none stand up to the positive attributes of fish.
http://www.jobmonkey.com/alaska/html/harvesting_jobs.htmlhttp://www.heartmart.com/heart-health/dietary-supplements/omega-3.htmlhttp://www.heartmart.com/heart-health/dietary-supplements/omega-3.htmlhttp://www.jobmonkey.com/alaska/html/harvesting_jobs.html


3/14

Professionals in all aspects of agriculture struggle with improving theirefficiencies and outputs to meet the food demands of the constantlyincreasing human population. Aquaculture is no different, and in fact, plays acritical role in this arena. Fish farming is typically much more efficient thancattle or pork production and other forms of agriculture. Land dedicated to fish

ponds will produce ten times or more consumable product than the same landused to raise cattle or pork, while requiring significantly less input.

But aquaculture does not exist without drawbacks. Depending on theirlocation, whether it is a landlocked fish pond, or a floating cage in a saltwaterestuary, high concentrations of aquatic species can alter or destroy existingwild habitat, increase local pollution levels or negatively impact local speciesgenetic makeup.

Read more:http://www.jobmonkey.com/aquaculturejobs/importance-of-

aquaculture.html#ixzz2QPGNekAb

Follow us:@JobMonkeyNews on Twitter|jobmonkeyjobs on Facebook

Salmon: A Fish Story

Salmon's a heart-healthy, flavorful favorite whose firm, meaty flesh rewards simplepreparations.

Related Links

Salmon Recipe Collection

Grilled Salmon Recipes

More Seafood Recipes

Healthy Salmon Menu--FREE!The Wild LifeWild salmon are amazing creatures. Born in the gravel of freshwater streams and rivers, they gradually make their way tosaltwater oceans, undergoing along the way certain physical changes that help them adapt; then, at the end of their lives,they return to their birthplace to spawn. And the cycle continues.

Unfortunately, pollution, dams and overfishing have severely threatened this cycle of life. The Atlantic salmon, which oncemigrated up such mighty rivers as the Hudson, Thames, Seine and Rhine, are now severely depleted. In 2004, thediscovery of a salmon swimming in the Seine made big news; it had been a century since the last salmon sighting. If youlive near the Atlantic Ocean and its tributaries, you are most likely eating farmed salmon.
http://www.jobmonkey.com/aquaculturejobs/importance-of-aquaculture.html#ixzz2QPGNekAbhttp://www.jobmonkey.com/aquaculturejobs/importance-of-aquaculture.html#ixzz2QPGNekAbhttp://ec.tynt.com/b/rw?id=cdSIJsvRWr4Qkvacwqm_6r&u=JobMonkeyNewshttp://ec.tynt.com/b/rf?id=cdSIJsvRWr4Qkvacwqm_6r&u=jobmonkeyjobshttp://ec.tynt.com/b/rf?id=cdSIJsvRWr4Qkvacwqm_6r&u=jobmonkeyjobshttp://allrecipes.com/Recipes/Seafood/Fish/Salmon/Main.aspxhttp://allrecipes.com/Recipes/Seafood/Fish/Salmon/Main.aspxhttp://allrecipes.com/Recipes/BBQ--Grilling/Seafood/Salmon/Main.aspxhttp://allrecipes.com/Recipes/BBQ--Grilling/Seafood/Salmon/Main.aspxhttp://allrecipes.com/Recipes/Seafood/Main.aspxhttp://allrecipes.com/Recipes/Seafood/Main.aspxhttp://allrecipes.com/Menu/62617636/Heart-Healthy-Palate-Pleasing/Detail.aspxhttp://allrecipes.com/Menu/62617636/Heart-Healthy-Palate-Pleasing/Detail.aspxhttp://allrecipes.com/Menu/62617636/Heart-Healthy-Palate-Pleasing/Detail.aspxhttp://allrecipes.com/Recipes/Seafood/Main.aspxhttp://allrecipes.com/Recipes/BBQ--Grilling/Seafood/Salmon/Main.aspxhttp://allrecipes.com/Recipes/Seafood/Fish/Salmon/Main.aspxhttp://ec.tynt.com/b/rf?id=cdSIJsvRWr4Qkvacwqm_6r&u=jobmonkeyjobshttp://ec.tynt.com/b/rw?id=cdSIJsvRWr4Qkvacwqm_6r&u=JobMonkeyNewshttp://www.jobmonkey.com/aquaculturejobs/importance-of-aquaculture.html#ixzz2QPGNekAbhttp://www.jobmonkey.com/aquaculturejobs/importance-of-aquaculture.html#ixzz2QPGNekAb


4/14

Importance of Fish

Ancient Hawaiians drew their sustenance - physical and spiritual - from the land and sea around them.

Guided by a philosophy that paired a cycle of cultivating and harvesting plants and animals with

conservation of those resources, they lived in balance with their environment. Within this context,

fishing held a central role. Seafood provided the primary protein in the Hawaiian diet, complementing

vegetable staples such as taro, sweet potato and breadfruit. Ocean resources were so important thatthe ahupua`a system of land division ensured each district had access to the sea along a swath of

shoreline and beyond to fisheries. Within each pie-shaped division, fishing communities exchanged

with upland farmers, supplying fish, shellfish, seaweed, and salt to the entire district.

Fishermen maintained personal and spiritual relationships with the sea, acquiring extensive knowledge

of shore and reef areas, honing their diving skills to locate fish, spear fish, free nets, and set traps.

The many proverbs, prayers, and tales attest to the importance of fishing in Hawaiian culture. A

successful fisherman was a highly valued asset for his entire community. The historian Kamakau wrote

that the fortunate fisherman "was like a lucky woman who attracts men by the fragrance of her skin."

Fish Culture and Rearing MethodsFISH CULTURE AND REARING TYPES

Fish cultureis of different types viz.,1. Composite fish culture 2. Cage culture 3. Integrated fish culture 4. Lacustrinefisheries 5. Sewage fisheries

1. Composite Fish CultureMaximum exploitation of the aquatic resources through the introduction of selected varieties

of compatible fish to achieve high productivity is calledcomposite fish culture or polyculture.Composite fish culture has been in practice in our country since ancient times. Thecombined efforts of Central Inland Fisheries Research Institute (CIFRI) and Indian Council ofAgricultural Research (ICAR) propose the following ratios of different fishes for high yieldinginpolyculture.

i. Grass carp, silver carp, scale carp and mirror carp in the ratio of 5: 3 : 8 : 2.ii. Grass carp, silver carp, rohu, scare carp and mirror carp in the ratio of 5 : 3 6 8 : 2.
http://biozoom.blogspot.com/2011/03/aqua-culture-fish-culture.htmlhttp://biozoom.blogspot.com/2011/03/aqua-culture-fish-culture.htmlhttp://biozoom.blogspot.com/2011/03/aqua-culture-fish-culture.html


5/14

iii. Grass carp, silver carp, catia, rohu, scale fish and mirror carp in the ratio of 5: 3 3 : 6 8 :2.

2. Cage cultureIn cage culture the fishes are reared in a cage made of Nylon and wooden frame and sometimes in a cage made up of bamboo mesh. These cages are kept in flowing waste watercanals. By this method the fishes can be protected from predators and number of fishes canbe culture. Fishes

feed upon thefood available in waste waters. The waste waters can be re utilised for irrigation. Thecomplications in management and investment are very little in this type of culture.

3. Integrated fish culture

Culturing of fish in association with agriculture or ducks or chicks or pigs or prawns is calledIntegrated fish culture.Fish wastes fertilize the crop fields while wastes from crops and poultry
http://biozoom.blogspot.com/


6/14

chicks are used asfeed by fish. individually these farming methods may yield low income. But integratedfarming technique yields multiple products of nutritional value and economic importance.Various types of integrated fish culture methods are in practice today. They are

i. Fish-Prawn culture:

Prawn are cultured in ponds which are meant for carp culture in this method. The excreta ofcarp fishes constitute food for prawns.

ii. Fish-Poultry culture:

In this typepoultry farmis constructed over a platform built of bamboo sticks above thewater level of the pond. This facilitates direct fertilization of the pond by droppings of chick
http://biozoom.blogspot.com/2011/02/poultry-farming.htmlhttp://biozoom.blogspot.com/2011/02/poultry-farming.htmlhttp://biozoom.blogspot.com/2011/02/poultry-farming.htmlhttp://biozoom.blogspot.com/http://biozoom.blogspot.com/2011/02/poultry-farming.html


7/14

which are rich in nitrogen and

phosphorus.

iii. Rice - Fish culture:

Fish are cultured in rice fields in this method. Fishes which can live in a depth of 15cm areselected for this culture. The ricevariety selected for this purposeshould also develop strong rootsystem.

iv. Fish culture in pokkali fields:This practice is followed in kerala.Prawn, fish and rice are cultured onrotational basis in the pokkali ricefields which are influenced by tides ofvembanad backwaters. Ricecultivationis. taken up from June to September.Fish and prawn are cultured uptoMay.v. Coconut or Banana - Fish Cuture:In banana or coconut fields, theditches or canals in between the rows

of plants can be utilised for fishculture in this method. These canalsare always filled with water and rich Ininsect population.

4. Lacustrine fisheriesThe culture of fish in takes constitutelacustrine fisheries. Natural lakes of
http://biozoom.blogspot.com/http://biozoom.blogspot.com/http://biozoom.blogspot.com/http://biozoom.blogspot.com/


8/14

0.72 million hectares and manmade lakesof 65 million hectares are available for fishculture in India.

5. Sewage fisheries

In many countries fishes are introducedand cultured on commercial basis insewage canals and ponds. The sewage isused as fertilizer in culture ponds and asfeed for fish.

previous topic-Fresh water Fish Breeds inAquaculture
http://biozoom.blogspot.com/2011/03/fresh-water-fishes-in-aquaculture.htmlhttp://biozoom.blogspot.com/2011/03/fresh-water-fishes-in-aquaculture.htmlhttp://biozoom.blogspot.com/2011/03/fresh-water-fishes-in-aquaculture.htmlhttp://biozoom.blogspot.com/2011/03/fresh-water-fishes-in-aquaculture.htmlhttp://biozoom.blogspot.com/http://biozoom.blogspot.com/2011/03/fresh-water-fishes-in-aquaculture.htmlhttp://biozoom.blogspot.com/2011/03/fresh-water-fishes-in-aquaculture.html


9/14

Why Growing Fish is Important

There are some very good reasons why a farmer or small land owner might

be interested in fish farming:

Fish are an important food source.

Fish farming can help a farmer make the best use of his land.

Fish farming can provide extra income.

There may be additional reasons; you and the pond owners can determine

these from the local situation. The three points listed above are very

broad, however, and apply, at least inpart, to most situations.

Therefore, each point isdiscussed more fully below.


10/14

FISH AS FOOD Farmers know that all living things need food, and that

without food, living things die. However, they are not as likely to know

the characteristics of food which make itvaluable (or not) to the body.

Food is important because itprovides proteins, vitamins, minerals, fats,

and carbohydrates. These things are called nutrients: they are materials

that the body must have to live and grow. Every kind of food has dif

ferent amounts of each of these nutrients. For example, some foods

contain more protein; others have more fat than protein.

4

Because foods contain different amounts

of proteins, fats, and carbohydrates,

for example, itisnecessary to eat a

number of different kinds of food to


11/14

get the right amounts of each nutrient.

All the foods together then give the

body what Itneeds to grow.

The food that people eat iscalled

their diet. Eating the right kinds of

food -- foods that give the body the

right amounts of proteins, fats, etc.

--iscalled eating a balanced diet.

People who eat a balanced aiet usually

are not healthy eat the and strong; people who do

right kinds of food are

more likely to be weak and get sick.


12/14

Proteins are the most important part of food. Protein ismade of carbon,

hydrogen, and nitrogen.

These are called elements. The combinations of

elements inprotein make itthe most useful

nutrient. Foods that contain

a lot of protein are especially good for people to eat.

And fish contains

a lot of protein.

The table on the opposite page shows a list of foods that humans eat.

The first number beside the food shows the number of grams of protein in the

food when it isfresh. The second number tells how many grams of

protein there are infood which has been dried.

The table shows that

fish -- whether fresh or dried -- isa very good source of protein.

(100gm of dried fish contains more protein than 100gm of fresh fish only

becaise dried foods have water taken out.

Therefore, 100gm of fresh fish

weighs less when itisdried.)

Ifthe farmers inyour area already eat a


13/14

lot of fish, or like fish, fish

farming for food may not be hard to introduce and have accepted.

Ifthey do not eat fish often, you will have to keep this inmind when

you talk about fish as a healthy food. Food just may not be the most

important reason, from their point of view, for wanting to grow fish.


14/14

importance of fish culture

Documents