Octopuses are amazing creatures that are still a mystery to scientists. These creatures have always attracted the attention of scientists-oceanographers their amazing body structure and of unusual mental abilities, it is believed that octopus along with cuttlefish and dolphins are the most intelligent marine species. However, these creatures are remarkable not only for its mental abilities.
Scientists have long noticed that octopuses are the owners of the eyes, is unique not only in structure, but also the relatively long dimensions of the body and visual capabilities. A large brain and large eyes allow the octopus to receive much more information about the world than any other animal on the planet. Octopus eye are still the subject of controversy in the scientific community and not all the details of the vision of the world and these animals clear a learned person, but still some staggering data scientists already have. Continue reading
To highly productive fishing industry is part of pond fish farming. Pond fish farming is based on the breeding and rearing of fish under the guidance of a person. The main objects in pond fish culture are domesticated fish and its hybrids.
Qualitative improvement of fish stocks in reservoirs and a number of measures that ensure the preservation, the increase of fish – these are the main features of fish farming.
Fish farming can develop in both natural pond waters. In natural waters fish farming includes the following points: first of all this reproduction, the improvement and increase of the species composition of the ichthyofauna in the lake, river, reservoir, lagoon, estuaries.
Pond fish farming is the natural and the artificial breeding of fish is carried out breeding work in conducting activities on acclimatization of new fish species. Pond fish farming is the rearing of fish in intensive technologies, monoculture, polyculture, aquaculture. Pond aquaculture is primarily characterized by a high degree of use of all components of the forage base ponds, the phytoplankton, zooplankton, benthos, aquatic vegetation. The availability of feed, the development of fish depends on the nature of the reservoir. Continue reading
Nowadays the waters, who build near or on the territory of the farms are classified into:
– with plants;
– with fish and plants.
– ornamental fish;
– fish of different kinds;
– non-decorative fish.
– a reservoir with a septum, which divides the pond as it were into two. In the first live ornamental fish, while in the second the wild. Continue reading