Why the cuttlefish ink?
It is well known that the ability of cephalopods — cuttlefish, octopuses, squids — "to throw dust in the eyes". In a moment of danger, these animals throw themselves out…

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Australian bull shark (Heterodontus portusjacksoni)
Australian bull shark (Heterodontus portusjacksoni) with a glance at her, or rather on her face that produces an even more sinister impression than the white or tiger sharks. However, the…

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Sharks
Sharks are one of the most formidable inhabitants of the ocean. The lack of bone tissue and Gill covers, especially the structure of scales, and many other features of the…

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The breeding of carp as a business in the pond and at home

It’s just a great option for people that have a pond or pool on the property. Carp is though simple, but at the same time very profitable business. You can also build small swimming pool – the main condition for the construction – tightness.

Once the pool is ready, somewhere in March, you can make the stocking, but in cool weather it is desirable that the pool was covered with a film. In compliance with all the conditions necessary for cultivation of a carp, by December it will be possible to get enough large fish. During the summer season, fish is gaining in the weight to 1.5. kg.

Why to do it?

You can grow any number of fish, and therefore should make advance arrangements for their implementation. All costs will easily be paid off when the first sales. Continue reading

Sea hare: fish from the Pacific ocean

Description fish-rabbit

Sea hares are most common in the Western Pacific, the Mediterranean and the tropical waters of the Indian ocean. They have a medium size and oval body, flattened laterally, covered with minute inconspicuous scales. The head of the sea hare has a triangular shape and slightly elongated snout with a small mouth at the end. Sea hare is able to defend himself – for this it has sharp rays on the fins with poison glands, injections which cause quite severe pain.

Sea hares can change their color and intensity depending on their condition. Usually the fish-hare can be found in algae and lagoons, where they live among swarms of young fish and fish-surgeons. Most of the day sea hares spend for chewing low-calorie food in the form of algae from coral reefs – so they provide a right amount of nutrients.

Despite the presence of venomous glands, this species is quite popular for human consumption, particularly among island residents, who also sell locally caught sea hares in Korean, Taiwanese and Philippine markets. Continue reading

Sea catfish

Signs. Body elongated, laterally compressed, glabrous. The coloration of back, sides of body and all fins, except the ventral, zelenovato-grey, almost black. Dorsal fin very short, is located ahead of the pelvic fins. Spiny rays of the pectoral fin serrated on the outer edge. Lower jaw longer than upper. Mouth facing up.

Distribution. Big fish, reaching 5 m length and 300 kg weight, inhabiting rivers and lakes of Europe from the Rhine to the East. To the North of the som is to the South of Finland, South to Asia Minor, the Caspian and Aral seas and flowing into their rivers. No catfish in the rivers of Siberia. There is no com also in England, in the Iberian Peninsula, in France, Italy and Western Greece.

Feature. Soma colour variable, usually olive-green, almost black back, white belly, flanks irregularly shaped spots. Small reed form, inhabiting the southern part of the Aral sea, intensive black. Dorsal fin catfish in a tiny, barely noticeable, no fatty fin, but the anal is very long. Continue reading

Choose aquarium fish
As a rule, the aquarium contains several species. Therefore, in the first place, choosing fish for the aquarium aquariums it is necessary to consider the conditions of feeding and the…

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Why the cuttlefish ink?
It is well known that the ability of cephalopods — cuttlefish, octopuses, squids — "to throw dust in the eyes". In a moment of danger, these animals throw themselves out…

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