دسته بندی: Marine knowledge

Shrimp Farming Systems and Methods by Species, Global Practices, and Regions

۱. Pacific White Shrimp (Litopenaeus vannamei)

  • Intensive/Super-Intensive: High-density farming in controlled ponds with artificial feeds, aeration, and daily water exchange (e.g., super-intensive indoor systems in China, ISIC).

  • Semi-Intensive: Medium-density ponds with supplemental feeding and partial water exchange (common in Ecuador, Mexico, and Brazil).

  • Integrated Multi-Trophic Aquaculture (IMTA): Combining shrimp with algae or fish to reduce waste and improve sustainability (e.g., PIMTA model in China).

  • Key Regions: Latin America (Ecuador, Brazil), Asia (India, Vietnam, China), United States (Texas).

۲. Giant Tiger Prawn (Penaeus monodon)

  • Extensive: Low-density ponds relying on natural tidal exchange and minimal feeding (traditional systems in Bangladesh, Indonesia).

  • Semi-Intensive: Fertilized ponds with supplemental feeding and limited water management (common in Thailand and Vietnam).

  • Intensive: High-density ponds with artificial feed, aeration, and strict disease control (e.g., Thailand, Philippines).

  • Key Regions: Southeast Asia (Thailand, Indonesia), South Asia (India, Bangladesh).

۳. Indian White Shrimp (Penaeus indicus)

  • Extensive/Semi-Intensive: Brackish ponds with natural seed stocking and supplemental feeding (common in India and Iran).

  • Polyculture: Often integrated with milkfish or crabs to optimize pond productivity (e.g., Philippines).

  • Key Regions: Middle East (Iran, Saudi Arabia), South Asia (India, Sri Lanka).

۴. Kuruma Shrimp (Marsupenaeus japonicus)

  • Super-Intensive: Indoor tanks or covered ponds with advanced water recirculation (Japan, South Korea).

  • Greenwater Hatcheries: Algal bloom tanks for larval feeding (common in Japan).

  • Key Regions: East Asia (Japan, China), Mediterranean (Spain, Italy).

۵. Giant Freshwater Prawn (Macrobrachium rosenbergii)

  • Pond Culture: Freshwater ponds with controlled salinity and organic feeds (e.g., Bangladesh, Thailand).

  • Integrated Farming: Combined with rice or vegetable farms in rotational systems (e.g., Vietnam).

  • Key Regions: Asia (Bangladesh, India), Latin America (Brazil).

۶. Banana Shrimp (Fenneropenaeus merguiensis)

  • Extensive: Mangrove ponds with tidal water exchange (Indonesia, Australia).

  • Semi-Intensive: Fertilized ponds with supplemental feeding (common in Thailand).

  • Key Regions: Southeast Asia (Thailand, Malaysia), Northern Australia.

۷. Blue Shrimp (Litopenaeus stylirostris)

  • Semi-Intensive: Medium-density ponds with partial water exchange (Mexico, Panama).

  • Biofloc Technology: Recirculating systems with microbial bioflocs to maintain water quality.

  • Key Regions: Latin America (Mexico, Ecuador).


Key Considerations

  1. Sustainability: Integrated systems (e.g., PIMTA, IMTA) and mangrove preservation are priorities to minimize environmental impact.

  2. Disease Management: Intensive systems often face challenges such as White Spot Syndrome Virus (WSSV), requiring strict biosecurity.

  3. Feeding Practices: Semi-intensive and intensive systems rely on commercial feeds, while extensive systems depend on natural productivity.

For more details on region-specific practices or certification standards (e.g., ASC), please refer to specialized resources.

History and Methods of Fish Farming in Iran

The first activities related to fish farming in Iran date back to ۱۹۲۲ (۱۳۰۱ in the Iranian calendar), starting with the breeding and production of caviar-producing fish. Warm-water fish farming began in the 1960s (the 1340s in the Iranian calendar). Due to the high demand for farmed fish in Iran, today there are numerous fish farming centers across the country that breed and produce various species of aquatic animals using different methods.


How to Become a Fish Farmer

Firstly, a bachelor’s degree related to fish farming is in the field of Natural Resources Engineering, especially in the Aquaculture and Fisheries specialization. Those interested in this profession can pursue this field for their undergraduate studies.

If you prefer a lower-level degree in fish farming, you can study in fields such as an associate degree in ornamental fish breeding and aquaculture and then begin practical work in this field. There are also courses in technical and vocational centers for training in fish farming.

It is important to note that after completing your studies, hands-on experience in fish ponds and farms, even for a short period, is highly beneficial and almost essential. This way, you can gain both scientific knowledge and practical experience in the profession.


The Profitable Business of Fish Farming

Various aquatic animals, including fish, are cold-blooded, meaning they do not use energy to regulate their body temperature. As a result, they grow faster than other animals. This makes fish farming a highly profitable business. Among farmed species, trout, shrimp, and caviar-producing fish are considered the most profitable.


Types of Fish Farming Methods

The choice of method depends on the type and species of fish. In general, fish farming methods fall into two main categories:

  1. Cold-water Fish Farming

  2. Warm-water Fish Farming


Cold-water Fish Farming Methods (Trout):

  • Breeding and farming in Danish earthen ponds

  • In tanks

  • In cement ponds

  • In floating cages

  • In enclosed coastal areas

  • In closed-loop systems

  • In agricultural irrigation canals


Warm-water Fish Farming Methods:

A) Extensive (subsistence-economic) method:
Fish breeding and farming in:

  1. Water storage reservoirs (ponds and earthen dams)

  2. Water sources behind dams

B) Semi-intensive fish farming:

  • Constructing earthen ponds for fish breeding

  • Building ponds above ground level

  • Excavating flat or gently sloped ponds

  • Excavating ponds with proper slopes

  • Integrated rice-fish farming

C) Intensive fish farming:
This method is generally applied in open ponds and closed (greenhouse) ponds, including:

  • Concrete ponds or non-earthen tanks

  • Floating cage farming

D) Fish farming in closed-loop systems

E) Aquaponics (integrated fish and plant cultivation)

Source: fardfishery.ir

Head of Iran’s Fisheries Organization: Per Capita Fish Consumption in Iran Below Global Average

The head of Iran’s Fisheries Organization stated that per capita fish consumption in the country is 13.8 kilograms, while the global average consumption is 20 kilograms.

According to Mehr News Agency, Seyed Hassan Hosseini said today, Wednesday, at the conference of Iran’s Fisheries Directors General in Lorestan, that last year, 8,300 billion rials were invested in the country’s fisheries sector. He added that ۱۷۶ caviar farms are active in Iran, and 95% of caviar production has occurred after the Islamic Revolution.

He noted that Iran has numerous capacities to expand aquatic exports, which should be considered in operational plans.

Hosseini emphasized that efforts should be made to double the current production of aquatic animals, and in this regard, a fisheries atlas of the country has been prepared based on biological and provincial capacities.

Criticizing the multifaceted nature of decision-making in the fisheries sector over the past years, he said that provincial fisheries steering councils have been established to make decisions regarding production and consumption.

He added that over 33% of the organization’s programs focus on increasing productivity, and in terms of consumption, measures such as making fish more affordable, promoting awareness, improving distribution channels, direct marketing, and establishing specialized markets are planned.

The deputy minister and head of the Fisheries Organization also reiterated that per capita fish consumption in Iran is 13.8 kilograms, highlighting the gap with the world average of 20 kilograms.

Hosseini noted that ۴۵۶ species of aquatic animals are farmed worldwide, while in Iran, the number is still less than 20 species. He stressed that national efforts are needed to close this gap.

He emphasized that managers should promote the importance of fish consumption, adding that awareness-raising is a national effort, and both large-scale and local specialized markets are very important. By promoting aquaculture culture, the middle and low-income segments of society should be encouraged to consume this protein.

Hosseini also highlighted the importance of completing the value chain in this sector, noting that Turkey is second to Iran in aquatic production but leads in exports, demonstrating the need to develop production clusters and the value chain.

He stated that Iran’s fisheries exports exceeded $600 million last year with a 9% growth rate, and with export-oriented products and economic justification, the goal is to reach $۲ billion in foreign exchange earnings from fisheries.

He added that although shrimp farming in Iran broke a record last year with 61,000 tons produced, production must reach 200,000 tons, and achieving this goal requires the use of knowledge-based companies.

Source: www.mehrnews.com