罗非鱼 英文?罗非鱼,也被称作非洲鲫鱼、南鲫、越南鱼、吴郭鱼、福寿鱼、金凤鱼等。最初,罗非鱼指的是以莫桑比克为原产地的口孵非鲫属鱼类,学名为迟薯Oreochromis mossambicus。现在,这个名称广泛用于称呼慈鲷科非鲫属和口孵非鲫属等数种鱼类的混合俗称;在英文中,它们被统一称为Tilapia。罗非鱼是全球水产业研究和养殖的重点鱼类,那么,罗非鱼 英文?一起来了解一下吧。
Tilapia fish
Tilapia is a termed used for cichlids fish of the genus Tilapia as well as a few other cichlids that not really are tilapia fish. The genus tilapia contains more than 100 species and is originally found in Africa and parts of the Middle East but can today be found in a number of other waters around the world.Tilapia fish are appreciated both as aquarium fish and as food fish. Tilapia as a food source has played a very important role in preventing hunger in some areas as thsi fish is easy to breed and can be a very welcome source of protein in hungry struck areas. Many people hope that Tilapia fish can help end hunger and malnutrition around the world.This site is devoted both to tilapia as a food fish and to kepping tilapia fish in aquarium tanks.
Tilapia
Tilapia has been farmed for food for over 2500 years. Tilapia farming was for a long time confined to the middle east and some parts of Africa but has in recent years become a world wide industry with Asia and South and central American as large producers of Tilapia.
Tilapia is an extremely suitable fish for farming due to the fact they are fast growing and very tolerant in regards to water conditions and are generally speaking very hardy fish. The Tilapia fish that are being farmed are mainly species that aren’t true tilapias but rather from the group of fish that is called tilapia despite the fact that they in reality aren’t. The most commonly farmed Tilapia fish are found in the genus Oreochromis and Sarotherodon.
Tilapia fish value as food fish has lead to them being introduced to a large amount of waters around the world and they have established themselves in even more areas by escaping from fish farms that were breeding tilapia. This has lead to a situation where you today can find tilapia in tropical waters around the world.
Tilapia in Aquarium
Tilapia fish are very easy to keep in aquarium tanks for the same reasons that make them suitable for farming.A wide variety of tilapia species are available in the aquarium trade as well as number of the species that are called Tilapia but. Are found in the genus Oreochromis and Sarotherodon.Some of the most popular species are Tilapia buttikoferi and Tilapia mariae (Tiger Tilapia)
Tilapia cichlids are suitable for every how keeps aquariums regardless if you are a beginner or an advanced aquarium keeper. Tilapia fish can be kept in a long row of different aquarium setups depending on which species you choose to keep. You can find a tilapia species that suits almost any aquarium setup since there are both small and large species with various aggression levels. The only requirement to keep Tilapia in aquarium is that you have an aquarium of at least 40 gallon / 150 L. Larger tilapia species require larger aquarium tanks. Browse this site to find more information about how to keep and breed Tilapia fish in aquarium tanks.
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Large-scale commercial culture of tilapia is limited almost exclusively to the culture of three species: Oreochromis niloticus, O. mossambica and O. aureus. Of the three tilapia species with recognized aquaculture potential, the Nile tilapia, O. niloticus, is by far the most commonly used species in fish farming.
Growout strategies for tilapia range from the simple to the very complex. Simple strategies are characterized by little control over water quality and food supply and by low fish yields. As greater control over water quality and fish nutrition are imposed, the production cost and fish yield per unit area increases. Across this spectrum, there is a progression from low to high management intensity.
In traditioanal pond culture of tilapia, proper environmental conditions are maintained by balancing the inputs of feed with the natural assimilative capacity of the pond. The pond’s natural biological productivity (algae, higher plants, zooplankton and bacteria) serves as a biological filter that converts the wastes through natural biological processes.
Increasing stocking densities places increasing demands on the production system. Additional energy inputs in the form of labor, water exchange, aeration and feeds are all required to sustain the intensive system. As pond production intensifies and feed rates increase, supplemental aeration and some water exchange are required to maintain good water quality. For densities above 1.5-kg per square meter, aeration is usually required. There is a point where the incremental returns are not worthy of the additional inputs and risks. Increasing the intensity of the system does not necessarily reflect an increase in profitability.
All tilapia production systems must provide a suitable environment to promote the growth of the aquatic crop. Critical environmental parameters include the concentrations of dissolved oxygen, un-ionized ammonia nitrogen, nitrite nitrogen, and carbon dioxide in the water. Other important parameters include nitrate concentration, pH, and alkalinity levels within the system. To produce tilapia in a cost effective manner, production systems must be capable of maintaining proper levels of these water quality variables during periods of rapid fish growth. To provide for such growth, tilapia are fed high protein pelleted diets at rates ranging from 1.0% to 30% of their body weight per day depending upon their size and species.
Numerous options for holding broodfish, fry, fingerlings, juveniles, sub-adult and adult tilapias are available to the prospective farmer. The options include ponds, tanks, raceways, hapas and cages. Tanks and raceways involve considerably greater expense to construct but offer greater control. They are usually used in intensive and super-intensive culture of tilapias. Ponds are much cheaper to construct and allow management to stimulate natural productivity more readily. The major drawback of pond culture of tilapias is the greater risk of uncontrolled reproduction, which will occur if certain measures are not taken to minimize this possibility. Ponds are used in extensive, semi-intensive and intensive tilapia production. Pond culture is by far the most common method being employed throughout Latin America because it is the cheapest method and also is one of the best.
Ponds are the traditional and inexpensive way to hold spawning populations of broodfish. In some parts of the world, the pond system has been made more efficient through the use of cages or net enclosures (hapas). Basically, the hapas are fine mesh net enclosures that are about 40 square meters in size and arranged into units within a larger pond. This segregates the pond into more easily managed units. On a per unit area basis, tanks are the most efficient method of collecting and raising fry, followed by hapas and simple ponds.
In aquaculture, no two situations are alike. Each project must be carefully crafted to meet the expectations of the owners, while giving diligent consideration to the limitations and strengths inherent in the proposed venture.
Marketing the Product
The total aquaculture production of tilapia was reported to be 1,265,800 tons in 2000. International trade is growing rapidly, especially between Central American producers (Costa Rica, Ecuador and Honduras) and the United States, and between Asian producers (Taiwan, China, Indonesia and Thailand) and the United States and Japan. There is also modest trade between Jamaica and the United Kingdom. The largest exporter, Taiwan, supplies Japan with high-quality tilapia fillets for the sashimi market, and ships frozen tilapia to the United States market (40,000 tons in 2001). Taiwan exports about 70 percent of its domestic tilapia production. Thailand and Indonesia export less than 5 percent of their production.
Viet Nam has also recently entered the world tilapia market, and China exported 12,500 tons to the United States in 2001. Zimbabwe, thanks to the efforts one vertically intigrated operation, now also produces fresh and frozen fillets for the EC market.
In the United States, tilapia is now the third most imported aquaculture product by weight (56,300 tons in 2001), after shrimp and salmon. United States imports have been growing strongly and are forecast to grow further in the future. Long-term tilapia prices are expected to decrease, and this should lead to increased exports to the United States, as well as to Europe, which is still a largely undeveloped market for tilapia.
tilapia /tɪ"leɪpɪə/
Any of numerous, mostly freshwater, fish species (genus Tilapia, family Cichlidae), native to Africa.
They resemble North American sunfishes; one species grows to 20 lbs (9 kg). Tilapia species are easy to raise and harvest for food; they grow rapidly, resist disease, and eat readily abundant algae and zooplankton. They have been used in warm-water aquaculture systems since the early Egyptian civilization and have been introduced into many freshwater habitats. See also cichlid.
福寿鱼,学名Tilapianilotica♂×T.mossambica♀,俗名南洋鲫、非洲仔、罗非鱼,英文名Nilemouthbreeder、Tilapia,日文名テイラピア、チカダイ、イズミダイ。它原产于非洲的坦噶尼喀湖,有着优良的适应能力及强大的繁殖力。它的外形、个体大小有点类似鲫鱼,鳍条多棘,形似鳜鱼。福寿鱼属广盐性鱼类,海水、淡水中均可生存;罗非鱼对低氧环境具有较强的适应能力,一般栖息在水的底层,通常随水温度变化或鱼体大小改变栖息水层。
名字:福寿鱼(罗非鱼)地理分布:广泛分布于非洲大陆的淡水和沿海咸淡水水域繁殖方式:卵生。气候带:热带该鱼属于丽鱼科Cichlidae,罗非鱼属Tilapia(有称丽鲷科,丽鲷属),是珠江水产研究所于1978年7月,把自泰国引进的尼罗罗非鱼作为父本,莫桑比克罗非鱼为母本杂交得到的子一代。福寿鱼体形与尼罗罗非鱼相似,呈灰绿色。适宜生长温度为20―35℃,主要适合我国南方地区养殖。罗非鱼指鲈形目、丽鱼科、罗非鱼属(Tilapia)的鱼类。该属计有100个品种以上。
福寿鱼
罗非鱼原产于非洲,适应性强,为广盐性热带鱼类,,远在4000年前就开始被养殖。现在,已被全世界许多国家和地区引进养殖,成为重要的养殖对象,已被养殖的约15种。
1. 罗非鱼,通常称作非洲鲫鱼,是一种原产于莫桑比克的口孵非鲫属鱼类,学名为Oreochromis mossambicus。
2. 目前,罗非鱼不仅指莫桑比克口孵非鲫,而是慈鲷科中多个属的鱼的通称,包括非鲫属和口孵非鲫属等。
3. 在英文中,这些鱼被统称为Tilapia,是水产业研究的重要淡水养殖鱼种,并被视为未来动物蛋白质的主要来源之一。
4. 罗非鱼能够适应多种水域环境,包括淡水、咸水以及氧气含量较低的水域。它们通常在湖泊、河流、池塘的浅水区域生活。
5. 这些鱼具有很强的适应能力,能在空间有限的水域中繁殖,甚至在水稻田中也能生存和生长。
6. 罗非鱼大多为杂食性,以水中的植物和碎物为食。它们的学名Oreochromis spp.,中文俗名还包括南鲫、越南鱼、吴郭鱼、福寿鱼和金凤鱼等。
罗非鱼
网络定义
罗非鱼,原指以莫桑比克为模式产地的丽鲷属一鱼类物种,现为丽鲷科内一族鱼类的通称;英文里统称为Tilapia。又名非洲鲫鱼、非鲫、越南鱼、吴郭鱼等。原分布于温带、印度热带和热带国家等。 是世界水产业的重点科研培养的淡水养殖鱼类,且被誉为未来动物性蛋白质的主要来源之一。 罗非鱼和鲈鱼相似。通常生活于淡水中,也能生活于不同盐份含量的咸水中,可以存活于在湖,河,池塘的浅水中。它有很强的适应能力,且对溶氧较少之水有极强之适应性。绝大部份罗非鱼是杂食性,常吃水中植物和碎物。此鱼在面积狭小之水域中亦能繁殖。甚至在水稻田里能够生长。
http://zh.wikipedia.org/zh-cn/罗非鱼
动物学家经过研究,发现动物也有血型之分。但血型是否与它们各自的性格、血缘关系有联系,仍是未解之谜。
猴子、猩猩和人类相同,也有O型、A型、B型、AB型四种血型。
老鼠的血型有A型、B型两种。
马、牛、鹿等食草类动物的微型以O型为最多,A型次之,B型的极少。
狮、虎、豹、狼等食肉类动物,有A型、B型、O型三种血型。
蚊类动物仅发现有A、B两种血型。
青蛙、山椒鱼有A、B、AB三种血型。
研究动物的血型,对人类认识动物世界舒服很大作用。
以上就是罗非鱼 英文的全部内容,罗非鱼英文名:Tilapia。罗非鱼俗名南洋鲫、非洲仔、福寿鱼,罗非鱼原产于非洲的坦噶尼喀湖,外形类似鲫鱼,鳍条多棘,形似鳜鱼。福寿鱼属广盐性鱼类,在海水、淡水中均可生存。对低氧环境具有较强的适应能力,一般栖息在水的底层,通常随水温度变化或鱼体大小改变栖息水层。内容来源于互联网,信息真伪需自行辨别。如有侵权请联系删除。