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The Fredericksburg in the Texas Hill Country AVA is an American Viticultural Area surrounding the town of Fredericksburg, Texas in the Texas Hill Country. [3] [4] Fredericksburg and the surrounding area were settled by German immigrants in the nineteenth century. These settlers were the first to cultivate grapevines in the Texas
The Texas Hill Country AVA is an American Viticultural Area located in the Texas Hill Country north of San Antonio and west of Austin, Texas. [3] The appellation is the third largest American Viticultural Area in geographic area behind the Upper Mississippi River Valley AVA and Ohio River Valley AVA, covering an area of over 9,000,000 acres (14,062 sq mi).
A biofilter provides a substrate for the bacterial community, which results in thick biofilm growing within the filter. [4] Water is pumped through the filter, and ammonia is utilized by the bacteria for energy. In recirculating systems, daily water exchanges are commonly used to control nitrogen levels.
Fredericksburg in the Texas Hill Country AVA (1989) - Central Texas. Known for its Cabernet Sauvignon and Chardonnay. Texas Hill Country AVA (1991) - Central Texas. Located just west of Austin. With over 9,000,000 acres (14,000 sq mi), it is the second-largest AVA in the United States though less than 800 acres (320 ha) are planted in grape vines.
Marine shrimp farming is an aquaculture business for the cultivation of marine shrimp or prawns [Note 1] for human consumption. Although traditional shrimp farming has been carried out in Asia for centuries, large-scale commercial shrimp farming began in the 1970s, and production grew steeply, particularly to match the market demands of the United States, Japan and Western Europe.
A farmer constructing a shrimp farm in Pekalongan, Indonesia. A freshwater prawn farm is an aquaculture business designed to raise and produce freshwater prawns or shrimp 1 for human consumption. Freshwater prawn farming shares many characteristics with, and many of the same problems as, marine shrimp farming.
An American Viticultural Area (AVA) is a designated appellation for American wine in the United States distinguishable by geographic, geologic, and climatic features, with boundaries defined by the Alcohol and Tobacco Tax and Trade Bureau (TTB) of the United States Department of the Treasury. [1]
For freshwater aquaria, gravel is the most common substrate. To prevent damage to fish, gravel should not be sharp. Aquarium gravel can be as coarse as pea-sized or as fine as 1–2 mm. [1] It is available in a number of colors, and may be naturally colored or dyed, and may have a polymer seal to ensure it does not affect water chemistry. [1]