We continue to publish messages to students 4 “A” class. Today, under the heading the Corrs we offer to Your attention a story about the inhabitants of the red sea, which has prepared us for Khrebtova Natasha. Natasha as though he were about to go on a trip and that it went well, learned the most dangerous inhabitants of the red sea.
Shark – the largest and most dangerous predator of the red sea, this sea has about 30 shark species, 2nd most dangerous is the tiger shark that attacks people and long-winged shark. Some argue that even there white shark. the most dangerous shark in the world, but evidence of this until no. Can someone put these rumors to scare people. But no need to fear, these sharks are only in the open sea, and near the shores they don’t float.
Stingrays are inhabitants of the red sea they are of two types. electric scat and scat hvostokol. The first type has a property to let an electric discharge, it is dangerous because it is painful and possible pareticheski shock. And the second type at the end of the tail has a spike with poison. This injection very painful and the wound is healing long after the injection. Continue reading
Types of aquarium fish. Tips for choosing fish for a beginner aquarist.
The aquarium, with its fabulous inhabitants is very popular among us urban lovers of nature and animals, especially those who are always busy. Walking fish do not have a lot of time and effort to care for them is not required. A fascinating spectacle – the monitoring of floating beautiful creatures reduces stress and brings joy. There are a huge number of different aquarium fish. They are divided into families: carp, pelleve, solovinye, toothcarps, haratsinovye, aderinoye, okunevaya, homotaurine.
If you are a novice variomat, you can’t go wrong by having a representatives of the poeciliidae. A very common fish of this family are: swordtails, guppies, platys and mollies are one of the most unpretentious (with the exception of maybe the mollies velifera – it requires a lot of experience). These small bright fish get along well with other non-aggressive neighbors. Continue reading
Advanced technology: fish Farming
Diplostomum fish and their importance for pond culture
Diplomacy ( Diplostomoses ) is a widely common disease of freshwater fish caused by metacercariae of trematodes of the genus Diplostomum (family Diplostomatidae , a detachment Strigeata ). Metacercariae species in this genus is a highly pathogenic fish organisms, including for fishing and pond fish. To pathogens of susceptible diplostemonous all types of freshwater and anadromous fish, especially salmon, whitefish, sturgeon, carp. They are the most dangerous for larvae, fry and fingerlings of pond fish.
Diplotaenia diseases of pond fish in Kazakhstan are observed quite often. This primarily contributes to the creation of a pond and spawning and rearing farms in the vicinity of natural water bodies, where there are persistent pockets of diplostemonous. Continue reading