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عنوان فارسی مقاله:
آبزی پروری دریایی فین فیش در شمال ویتنام: عوامل مربوط به مقدمه و شیوع پاتوژن
عنوان انگلیسی مقاله:
Finfish marine aquaculture in northern Vietnam: Factors related to pathogen introduction and spread
سال انتشار : 2017
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مقدمه انگلیسی مقاله:
1. Introduction
In the Asia-Pacific region where finfish production is generally dominated by inland aquaculture, marine finfish aquaculture is a rapidly growing subsector (FAO, 2014; Nguyen and Truong, 2005). The sector consists mainly of small-scale farms, due to limited fingerling supply, irregular demand, and unreliable export markets (Kongkeo et al., 2010). The advantages of small-scale operations, such as proximity to domestic consumers, low capital investment, low operating cost, flexible management, and options for periodic discontinuation, make the sector ideal for local farmers. To enhance growth of the sector, fields of improvement include hatchery establishments, nursery technologies, feeding methods, disease control, health management, and market expansion (Kongkeo et al., 2010). Vietnam has a coastline of N3000 km, which offers great potential for marine aquaculture. Currently, marine finfish production comprises only about 2.4% (51,000 t) of the total finfish production (FAO, 2014) in Vietnam. In the northern part of the country, most marine finfish production takes place in Hai Phong and Quang Ninh provinces; in 2007 the 9000 and 7250 farms in Quang Ninh and Hai Phong produced 4200 and 1900 t respectively (Kongkeo et al., 2010). A typical farm consists of traditional wooden cages of about 3 m × 3–5 m and 2–3 m deep, connected to each other and anchored to the bottom to form a large floating raft. Each raft usually has accommodation for the owners who live on site, a high pressure pump, a freshwater pipe, and electricity (Fig. 1). Generally, these small-scale farms are located in floating villages (Nguyen and Truong, 2005). Most farmers rely on low cost captured fish from commercial fisheries as food for their stock (De Silva and Phillips, 2007). In these type of farms in Northern Vietnam, the main marine finfish species cultured are grouper (Epinephelus spp.), cobia (Rachycentron canadum), Asian sea bass (Lates calcarifer), snapper (Lutjanus spp), and red drum (Sciaenops ocellatus). Each farm cultures multiple species,
کلمات کلیدی:
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