1. Channa quinquefasciata 2. Channa stewarti Channa quinquefasciata, a new species of snakehead first found in torsa river, west bengal has its distribution in some of the eastern ghats of nepal also. They differ from all congeners by possessing a unique greyish to chrome-yellow body colour, with five black oblique bands horizontally along the upper half of the lateral body, dorsal-fin membrane with three rows of multiple black to brown oblong spots running horizontally along the whole fin length, and caudal-fin membrane alternating with <-shaped black spots arranged transversely. Genetically, the closest congener of C. quinquefasciata is C. stewartii from which it differs by K2-P sequence distance of 6.8-7.0%, and morphologically by the absence of numerous black spots on the flanks vs. presence, fewer dorsal-fin rays (33-35 vs. 38-40), fewer caudal-fin rays (12 vs. 13), and fewer mid-row lateral-line scales i.e 10-13 vs. 14-16(Praveenraj et al. 2018a). Though the number of oblique bands differ within the species as some have 6/7 bands like torsaensis. Their morphology is somewhat similar to torsaensis and are found in similar habitat where torsa and stewarti resides.
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Selecting tategoi(potential) for further grooming. They say koi keeping begins and ends with Kohaku, a deceptively simple red and white koi. Red and white koi first appeared in the early 1800s, when the offspring of a Magoi (a black carp) also had red cheeks, and was again cross-bred with a red fish (Higoi), to produce fish with red stomachs. In the mid 1800s, koi with red on the head, lips (kuchi-beni) and back were also bred, which was the very early refinements of the Kohaku koi variety. The Kohaku code was finally cracked after a red headed female fish was bred with a cherry blossom patterned male, and the resulting offspring now being thought to be the original lineage of all modern Kohaku. A link to comprehensive guide to koi var. 👇 https://lnkd.in/gSFM6Hrb #koi #ornamental #aquaculture #hatchery
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Channa marulius Common name: Bulls Eye Snakehead is native to nepal and india. Bulls eyes snakehead are just like other snakeheads; they raise their babies together until they can hunt by themselves. This pair was seen guarding and raising its fingerlins in the periphery tributary of Rapti River inside Chitwan National park. According to the villagers, they spawned in this particular area about a month ago (May) and are often seen in this territory since then. The larger one is female, males are active guard whereas female feed its unfertilized eggs to the fingerlings for first few weeks and acts as companion guard on later weeks. Fingerlings feed on small crustaceans and shrimps for first 2 months after hatching. They have high ornamental value globally as well as carry immense potential for being cultured under aquaculture practice especially in river waters. This pair is the largest one i have seen so far. Very lucky to see them in action! #nepal #Snakehead #fingerlings #fisheries #nature #rivers
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Statistics ornamental aquarium fish industry =https://lnkd.in/edEGq-4V
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-Moina macrocopa carrying eggs. They are showing good signs of replication even in this winter season. These are particularly from tropical region. Temp: 59F max , 51F min Diets: decayed husk and cowdung (0.5gm/ltr) Culture period :23 days. Partial water change(cycled water) every 10 days. Harvesting duration: every 3 days. Feeding application after each water addition. Throughout their life cycle, daphnia use a combination of asexual and sexual reproduction. Females reproduce asexually during the majority of the growth season, resulting in diploid eggs with two sets of chromosomes and genetically identical offspring. When these eggs are transferred to the Daphnia's brood pouch, they typically hatch within two to three days. Daphnia's reproductive habits change at the end of the season as the environment changes. Males and resting eggs, also known as winter eggs, begin to be produced by females. These are extremely long-lasting and capable of surviving intact for years or even decades, until the environment becomes favorable for their hatching and development, through extreme cold, drought, or periods of scarce nutrients. Before being placed in the brood capsule, resting eggs undergo internal fertilization by male Daphnia. In the video, we can see dimorphism in daphnia population though they are unisexual. The one with white resting eggs are reproducing via sexual method due to food shortages and the other ones (big reddish) following asexual cycle.
