UMT MOOC: Ornamental Fish Culture - Topic 3: Quality Characteristic Determination - Goldfish

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As mentioned in previous post, standard for any fish species serves two main purposes. First, it's used as guidelines for any competitions. Second, it guides breeder to select the best pair of fishes with desired characteristics for breeding project. For Goldfish, there exists three competing or complementary standards (there should be more from China and Japan):

(1) American Goldfish Association (AGA) Goldfish Standards, Revised 2009.
(2) Nationwide Goldfish Societies UK, Revised 2016.
(3) Federation of British Aquatic Societies (FBAS), Eleventh Edition, 2002.

Something about breeders, competitions, and standards. Breeders are the most passionate type of people around and there are always conflicts and politics on standards. Case in point, the incident that leads to the two standards existed in UK.

To identify good quality Goldfish, first we need to understand the anatomy of this species as shown in picture below (Source: AGA Goldfish Standards, 2009). First morphology is different from species, Goldfish is definitely have more mutations than other ornamental fishes. The Goldfish varieties is determined by three characteristics of existence of dorsal fin, tail type, and special growth.

According to Nationwide Goldfish Societies UK's judging standard, points are given based on these five categories of body, colour, finnage, special characteristics, and condition and deportment. The last category (deportment) required special training from breeder, where how the fish swim and react to external stimuli. 

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