Fisheries Questions in English

(C) Major carps are freshwater fish species that are widely cultivated in aquaculture due to their rapid growth and high nutritional value.
In the Indian subcontinent,the three most important species of major carps are $Catla$ ($Catla$ $catla$),$Rohu$ ($Labeo$ $rohita$),and $Mrigal$ ($Cirrhinus$ $mrigala$).
These are collectively known as Indian Major Carps.
Therefore,the correct group is $Catla$,$Rohu$,and $Mrigal$.

(A) Marine fisheries include the capture and culture of fish,prawns,molluscs,and other aquatic organisms in saltwater environments.
Common examples of marine food fishes include Hilsa,Sardines,Mackerel,and Pomfrets.
Catla,Rohu,and Mrigal are common examples of freshwater food fishes.

(B) Marine fisheries involve the cultivation and harvesting of fish in saltwater environments.
$1$. $Hilsa$, $Mackerel$, and $Pomfret$ are well-known examples of edible marine fishes.
$2$. $Catla$, $Rohu$, and $Mrigal$ are common examples of freshwater fishes.
Therefore, the group consisting of edible marine fishes is $Hilsa$, $Mackerel$, and $Pomfret$.

(C) Fisheries is an industry devoted to the catching,processing,or selling of fish,shellfish,or other aquatic animals.
$A$. Mangroves are salt-tolerant forest ecosystems.
$B$. Mackerel is a common name for a number of different species of pelagic fish.
$D$. Apiculture is the maintenance of honey bee colonies,commonly in hives,by humans.

(D) Fisheries is an industry devoted to the catching,processing,or selling of fish,shellfish,or other aquatic animals. In India,it has a significant place in providing income and employment to millions of fishermen and farmers,particularly in the coastal states. It is a major source of food and protein for a large population.

(C) According to the $NCERT$ textbook under the chapter 'Strategies for Enhancement in Food Production',the fishing industry is a major source of livelihood for a large population. It is estimated that more than $500$ million people in developing countries are directly or indirectly dependent on the fishing industry for their livelihood.

(C) In coastal states,the economy is heavily dependent on the sea and water bodies. Fisheries,which include the catching,processing,and selling of fish,mollusks,and crustaceans,serve as the primary source of livelihood and income for the coastal population. This industry provides both food security and economic stability to millions of people living in these regions.

(D) Modern techniques in fisheries,such as aquaculture and pisciculture,are implemented to enhance the production of aquatic organisms.
$1$. These methods help in meeting the increasing global demand for fish and other aquatic food products.
$2$. They facilitate the controlled cultivation of both marine and freshwater species,thereby increasing overall yield.
$3$. Consequently,these techniques contribute to the sustainable management and increased production of various aquatic resources,including fish and other edible aquatic organisms.

(B) Fisheries are an industry devoted to the catching,processing,or selling of fish,shellfish,or other aquatic animals.
Global fish production is primarily categorized into marine fisheries and inland fisheries.
Marine fisheries account for the vast majority of global fish production,contributing approximately $90\%$ of the total yield.
Therefore,the correct option is $B$.

(C) According to the $NCERT$ textbook for Class $12$ Biology (Chapter: Strategies for Enhancement in Food Production),the statement regarding the $500$ million people is incorrect. The textbook states that more than $1$ billion people in developing countries depend on fish as a primary source of animal protein. Therefore,option $C$ is the false statement.

(B) Statement $S$ is true because approximately $71\%$ (which is roughly $2/3$) of the Earth's surface is covered by water.
Statement $R$ is true because a significant portion of the global fish catch,estimated at around $90\%$,is obtained from marine sources (oceans and seas).
However,the fact that the world is covered by $2/3$ water is a geographical fact,while the fish production statistic is a result of marine biological resources and human exploitation. Therefore,$R$ does not explain why the world is covered by $2/3$ water. Thus,both are true,but $R$ is not the correct explanation of $S$.

(B) In the context of fisheries,fishes are categorized into freshwater and marine fishes.
$1$. Freshwater fishes include $Catla$,$Rohu$,and $Mrigal$.
$2$. Marine fishes include $Hilsa$,$Sardine$,$Mackerel$,and $Pomfret$.
Option $B$ contains $Mackerel$,$Pomfret$,and $Sardine$,all of which are marine fishes.
Therefore,the group $Mackerel$,$Pomfret$,$Sardine$ is consistent as they are all marine water fishes.

(D) Aquaculture is the farming of aquatic organisms such as fish,crustaceans,mollusks,and aquatic plants.
It involves the cultivation of aquatic populations under controlled conditions.
This practice encompasses both freshwater fisheries (e.g.,ponds,lakes,rivers) and marine fisheries (e.g.,coastal areas,open sea).
Since aquaculture covers the cultivation of aquatic organisms in various water bodies,all the mentioned options are included in the scope of aquaculture.

(A) The common freshwater edible fishes include Catla,Rohu,and Mrigal.
Mackerel,Pomfret,and Sardine are examples of marine fishes.
Therefore,Mrigal is the correct answer.

(A) $Mackerel$ is a common name applied to a number of different species of pelagic fish,mostly from the family $Scombridae$. They are widely consumed as food due to their high content of omega-$3$ fatty acids. Therefore,it is a type of fish.

(A) Major carps are freshwater fish species that are widely cultured in India due to their high growth rate and nutritional value.
Common examples of major carps include Catla $(Catla \, catla)$, Rohu $(Labeo \, rohita)$, and Mrigal $(Cirrhinus \, mrigala)$.
Sardine, Mackerel, and Pomfret are marine fish species, not major carps.
Therefore, Mrigal is the correct answer.

(A) The common edible freshwater fishes are Catla,Rohu,and Mrigal.
Hilsa,Sardines,Mackerel,and Pomfrets are common examples of marine fishes.
Therefore,Hilsa is a marine fish.

(A) The world's total fish production is derived from two main sources: marine fisheries and inland fisheries.
According to biological data and standard agricultural statistics, approximately $90$ percent of the world's total fish production is obtained from marine environments (oceans and seas).
Therefore, the correct option is $A$.

(B) Fisheries are an industry devoted to the catching,processing,or selling of fish,shellfish,or other aquatic animals.
Statement $P$ is correct because fisheries are classified based on the water source,which can be freshwater (rivers,lakes) or marine (oceans,seas).
Statement $Q$ is correct because the vast majority of global fish production is derived from marine environments,accounting for approximately $90\%$ of the total output.
Therefore,both statements are correct.

(D) The correct answer is $(d)$.
$Mackerel$ is a marine fish that is a rich source of omega-$3$ fatty acids.
$Mystus$,$Mangur$ (Clarias batrachus),and $Mrigala$ (Cirrhinus mrigala) are freshwater fishes.

(D) Freshwater fishes are those that live in water with low salt concentrations, such as rivers and lakes. Examples include $Catla$, $Rohu$, and $Common \text{ } carp$.
$Hilsa$ is an anadromous fish, meaning it spends most of its life in the sea (saltwater) and migrates to freshwater rivers only for spawning. Therefore, it is not classified as a freshwater fish.

(A) The $Blue \, revolution$ is specifically concerned with the management and enhancement of water resources and aquatic organisms, which includes fisheries.
$Green \, revolution$ is related to crop production.
$Apiculture$ is the practice of bee-keeping.
$Dairy \, industries$ are concerned with milk and milk products.
Therefore, the correct option is $A$.

(C) Freshwater fishes are those that live in rivers, lakes, and ponds.
$Rohu$ $(Labeo rohita)$ and $Catla$ $(Catla catla)$ are the most common edible freshwater fishes in India.
$Mackerel$, $Pomfrets$, $Hilsa$, and $Sardines$ are examples of marine fishes.

(D) The $Blue$ $Revolution$ refers to the significant increase in the production of fish and aquatic organisms.
It focuses on the development and management of fisheries,including both capture and culture fisheries,to meet the growing demand for protein-rich food.
Therefore,the $Blue$ $Revolution$ is directly concerned with fisheries.

(D) The correct answer is $D$ (Rohu).
$Hilsa$, $Sardines$, and $Mackerel$ are marine water fishes.
$Rohu$ is a freshwater fish.
Therefore, $Rohu$ is the odd one out.

(C) An exotic species is a species that is introduced to a region outside its native range.
$Cyprinus$ $carpio$ (Common carp) is an exotic fish species introduced to India from Europe and Asia for aquaculture purposes.
In contrast,$Catla$ $catla$,$Heteropneustes$ $fossilis$,and $Labeo$ $rohita$ are indigenous (native) fish species found in Indian water bodies.

(B) $Omega-3$ fatty acids are essential polyunsaturated fatty acids that are highly beneficial for human health,particularly for cardiovascular function.
Among the given options,Mackerel is a well-known marine fish that is an excellent source of $Omega-3$ fatty acids.
Mrigal (Cirrhinus mrigala),Mystus,and Magur (Clarias batrachus) are primarily freshwater fishes.

(A) Fish is considered a healthy food source because it is rich in polyunsaturated fatty acids (PUFAs),specifically Omega-$3$ fatty acids. These fatty acids are beneficial for cardiovascular health as they help in reducing cholesterol levels and act as natural antioxidants,unlike the saturated fats commonly found in the flesh of many land animals.

(N/A) Aquaculture is the farming of aquatic organisms such as fish,crustaceans,mollusks,and aquatic plants in controlled environments. Its importance and utility include:
$1$. Food Security: It provides a reliable and sustainable source of high-quality animal protein to meet the global demand for food.
$2$. Economic Growth: It creates employment opportunities and contributes significantly to the economy through exports and domestic trade.
$3$. Resource Management: It reduces the pressure on wild fish populations,allowing natural stocks to recover and preventing overfishing.
$4$. Diversification: It allows for the cultivation of various species,which helps in maintaining biodiversity and providing diverse nutritional options.
$5$. Industrial Use: Many aquatic organisms are used in the production of pharmaceuticals,cosmetics,and animal feed.

(N/A) Fishery is an industry devoted to the catching, processing, and marketing of fishes, molluscs (shellfish), and crustaceans (prawns, crabs, etc.) that have high economic value.
Fisheries play a crucial role in the Indian economy by providing a significant source of income and employment for millions of fishermen and farmers, particularly in coastal states.
It serves as a vital source of animal protein for a large segment of the human population, being both affordable and nutritious.
Techniques like aquaculture and pisciculture have significantly increased the production of both freshwater fishes (e.g., $Catla$, $Rohu$, $Common \text{ } Carp$) and marine fishes (e.g., $Hilsa$, $Sardines$, $Mackerel$, $Pomfrets$).
By utilizing modern scientific methods, the industry ensures food security and contributes to the overall enhancement of food production.

(N/A) Fishery is an industry devoted to the catching,processing,or selling of fish,shellfish,or other aquatic animals.
$A$ large number of our population is dependent on fish,fish products,and other aquatic animals such as prawn,crab,lobster,and edible oyster for food.
Some of the freshwater fishes which are very common include $Catla$,$Rohu$,and common carp.
Some of the marine fishes that are eaten include $Hilsa$,$Sardines$,$Mackerel$,and $Pomfrets$.
Fisheries has an important place in the Indian economy. It provides income and employment to millions of fishermen and farmers,particularly in the coastal states.
In order to meet the increasing demands on fisheries,different techniques have been employed to increase production.
For example,through aquaculture and pisciculture,we have been able to increase the production of aquatic plants and animals,both freshwater and marine.
Fisheries can be of saltwater or freshwater. $90 \%$ of the world's production comes from the sea.
Fisheries is also known as the '$Blue \text{ } Revolution$'.

(N/A) Aquaculture is the rearing, breeding, and cultivation of aquatic animals (such as fish, mollusks, and crustaceans) and aquatic plants in controlled environments for food production.
Examples of animals that can be multiplied by aquaculture include $Fishes$, $Prawns$, and $Crabs$.

(N/A) Pisciculture,also known as fish farming,is a specific branch of agriculture that focuses on the breeding,rearing,and management of fish in controlled environments for commercial purposes.
Aquaculture is a broader term that encompasses the farming of aquatic organisms,including fish,mollusks,crustaceans,and aquatic plants,in both freshwater and marine environments for food production or other economic benefits.

(N/A) The rapid increase in the fishery industry in recent years is referred to as the Blue Revolution.
Through practices like aquaculture and pisciculture,we have significantly increased the production of aquatic plants and animals,including both fresh-water and marine species.
This has led to the development and flourishing of the fishery industry,providing substantial income to farmers and contributing to the national economy.
The 'Blue Revolution' is being implemented along the same lines as the 'Green Revolution' to ensure food security and economic growth.

(C) The common freshwater fishes are Catla,Rohu,and Common carp.
$Hilsa$,$Sardines$,and $Pomfret$ are common marine fishes.
Therefore,$Rohu$ is a freshwater fish.

(B) The $Blue$ $Revolution$ is specifically associated with the development and expansion of fisheries and aquaculture.
$Green$ $Revolution$ is associated with agriculture and crop production.
$White$ $Revolution$ is associated with milk production and the dairy industry.
Therefore,the correct option is $B$.

(C) The process of rearing,cultivating,and harvesting aquatic organisms such as fish,mollusks,crustaceans,and aquatic plants in controlled environments is known as $Aquaculture$.
$Sericulture$ refers to the rearing of silkworms for the production of silk.
$Apiary$ refers to a place where honey bees are kept.
Therefore,the correct term for rearing aquatic plants and animals for food is $Aquaculture$.

(B) The correct answer is $B$.
Pisciculture is the breeding,hatching,and rearing of fish under controlled conditions.
$A$. Aquaculture involves the farming of aquatic organisms including fish,mollusks,crustaceans,and aquatic plants.
$C$. Sericulture is the rearing of silkworms for the production of silk.
$D$. Apiculture is the maintenance of hives of honeybees for the production of honey.

(D) Pisciculture refers to the commercial rearing,breeding,and management of fish.
It encompasses the production of fish in both freshwater (inland) and marine water environments.
Aquaculture,on the other hand,is a broader term that includes the production of aquatic plants and various aquatic animals.

(C) The Blue revolution is associated with the increase in the production of fish and aquatic products.
$White$ revolution is associated with the production of $Milk$.
$Silver$ revolution is associated with the production of $Egg$.
$Green$ revolution is associated with the production of $Wheat$ and other food grains.

(C) Marine fisheries include the capture and culture of fish in saltwater environments.
Common edible marine fishes include $Hilsa$, $Sardines$, $Mackerel$, and $Pomfrets$.
$Catla$, $Rohu$, and $Common \text{ } carp$ are freshwater fishes.
Therefore, the correct group consisting only of marine fishes is $Hilsa$, $Sardines$, and $Mackerel$.

(D) Fisheries is an industry devoted to the catching,processing,or selling of fish,molluscs (shellfish),and crustaceans (prawns,crabs,etc.).
Therefore,all the given options are correct.
The correct answer is $D$.

(D) The Blue Revolution refers to the significant increase in the production of fish and aquatic organisms.
It focuses on the development and management of fisheries,including both marine and freshwater resources.
Therefore,the Blue Revolution is associated with $Fisheries$.

(B) Freshwater edible fishes $(P)$ include: $I$ (Catla), $V$ (Rohu), and $VII$ (Common carp).
Marine edible fishes $(Q)$ include: $II$ (Mackerel), $III$ (Hilsa), $IV$ (Sardines), and $VI$ (Pomfrets).
Therefore, $P = \{I, V, VII\}$ and $Q = \{II, III, IV, VI\}$.
This matches option $B$.

(D) Fisheries is an industry devoted to the catching,processing,or selling of fish,shellfish,or other aquatic animals. It plays a crucial role in the economy of many coastal states,providing income and employment to millions of fishermen and farmers. Furthermore,a significant portion of the human population relies on aquatic resources like fish,prawns,crabs,lobsters,and edible oysters as a primary source of food. Therefore,all the given statements are correct.

(A) The correct answer is $A$.
$Stromateus$ (commonly known as Pomfret) is a marine fish.
$Labeo$ (Rohu),$Cirrhinus$ (Mrigal),and $Catla$ (Catla) are freshwater fishes commonly used in aquaculture.