FISH CULTURE

The great white shark has a robust large conical-shaped snout . It has almost the same size upper and lower lobes on the tail fin (like most mackerel sharks , but unlike most other sharks). Great white sharks display countershading , having a white underside and a grey dorsal area (sometimes in a brown or blue shade) that gives an overall "mottled" appearance. The colouration makes it difficult for prey to spot the shark because it breaks up the shark's outline when seen from a lateral perspective. When viewed from above, the darker shade blends in with the sea and when seen from below casts a minimal silhouette against the sunlight. Great white sharks, like many other sharks, have rows of teeth behind the main ones, allowing any that break off to be rapidly replaced. A great white shark's teeth are serrated and when the shark bites it will shake its head side to side and the teeth will act as a saw and tear off large chunks of flesh. Great white sharks often swallo...

Aquaculture has been used in China since circa 2500 BC. When the waters lowered after river floods, some fishes, mainly carp , were held in artificial lakes . Their brood were later fed using nymphs and silkworm feces, while the fish themselves were eaten as a source of protein . By a fortunate genetic mutation, this early domestication of carp led to the development of goldfish in the Tang Dynasty . The Hawaiian people practiced aquaculture by constructing fish ponds (see Hawaiian aquaculture ). A remarkable example from ancient Hawaii is the construction of a fish pond, dating from at least 1,000 years ago, at Alekoko . According to legend, it was constructed by the mythical Menehune . The Japanese practiced cultivation of seaweed by providing bamboo poles and, later, nets and oyster shells to serve as anchoring surfaces for spores . The Romans often bred fish in ponds. The practice of aquaculture gained prevalence in Europe during the Middle Ages , since fish were sca...

LIST TERMS FISHERY Aklimatisasi : Adjustment a[n organism to new environment or change of environment. Capacity Bearing : Energy accomodate a[n area / place to, arrest;detaining burden of building/ equipments placed [at] area. Blastula : Mount growth of egg after impregnation which [is] its fission product cells [of] group [in] egg pole. Copulae : Jutty in form of stick [at] surface of husk part of tail jetty, fish larva head and body, functioning as a means of peraba / censor. Tank Daily of[is transfer of : A[N system / way of mass conducting [of] plankton which [is] its cropping [is] [done/conducted] overall ofly / totalizeing later;then diinokulasi / planted [by] seed return. Embryo : Candidate Larva fish, expanding in egg, from after bisection of cell until ready for hatching. Enrichment : Enriching, a[n way of obstetrical to increase zooplankton gizi by giving high nutritious food to zooplankton [of] several hours before given as physic of pakan to larva. Euryhaline : A[N nature o...

3. Trypanosome Spp. Representing parasite [at] fish blood, [is] usually propagated by leech. This parasite [do] not generate danger to fish of inang, fish with only containing some tail of trypanosome will not show symptom of klinis. [At] heavy infection case [of] fish will experience of fish and anaemia will looked to be weaken its gill looked to be turn pale. Prevention : shut-out carrier [t] ( leech ) Medication : there is no drug able to be used for medication.

2. Cryptobiasis Cause : Cryptobia Sp . Parasite have triangle body form with part of keen and blunt posterior [at] part of anterior, and provided with 2 of flagella that is 1 of flagella short [of] dianterior and 1 of flagella long [is] [circle;coil] the than part of anterior to shares from other side shares and body of posterior. This parasite represent parasite obligat patch [at] bream gill and husk. Branchialis Cryptobia represent parasite [at] goldfish gill ( Carpio Cyprinus), Carrasius Auratus, Ctenopharingodon Idelus . Death only happened [at] seed fish. Agitate infection Cryptobia of inang [is] same but its infection place only [at] husk, but [at] heavy infection earn [is] also found [at] gill.

B. FLAGELLATA 1. Costiasis. Cause [is] : Costia Sp/ Ichthyobodo Sp . Ichthyobodo represent parasite of obligat gum in [at] body of inang ( gill or husk) by using cytostome. [At] infection [is] hence this parasite will place x'self [at] cell coat of epithel among scale. While [at] heavy infection hence the parasite will disseminate the overall of part of fish body and even until gill. Infection can be good [of] wild fish and also fish which [is] conducting. Factor racing this parasite infection [is] density of too high fish. symptom of Klinis : fish seen is matt, like blanketed by coat which [is] ashes white chromatic effect of abundant mucus production. Haemorrahage and damage fin will seen [at] heavy infection. If gill infection hence will looked to be its gill turn pale and closed over with mucus. will lose appetite, swimming to weaken. fish sometime its body rubbing [at] pool wall or base. Preventive: controlling amount irrigate with usage of filter, preventing wild fish so th...

Asagi, Blue Koi Chromatic. Asagi [is] koi having fair blue or blue chromatic body with cheek, stomach, and red fin fold. fair Blue Scales and form undamaged formation. Although Asagi tend to to have existing head [of] its stain, but immaculate clean in fact prefer. Some Asagi have no to ruddle [at] its stomach. Ruddle this it is said will disseminate to back so that close over blue colour in line with the increasing of age of Asagi. Asagi with red blot [in] head named Asagi­-Menkaburi ( Mask Covered). Fold Fin chest which is [is] rose colored to be referred [as] [by] fin of Shusui. Ruddle him will not see [at] back. Kajo-Asagi ( Dark Blue Shusui) [is] Asagi which [is] its body colour as dark as body colour of koi black. Narumi-Asagi [is] having pattern of Narumi, becoming individuality of Asagi. Mizu-Asagi [is] koi having colour most fair among Asagi. Asagi-Sanke [is] koi having blue back colour turn pale. Head and its stomach shares there are red sign, and undercarriage [of] its ...