Vocabulary. poikilothermic пойкилотермное животное(имеющее непостоянную температуру тела) dissolution растворение

poikilothermic	пойкилотермное животное(имеющее непостоянную температуру тела)
dissolution	растворение, разжижение
respire	дышать
blood stream	кровообращение, кровоток
unionized ammonia (NH3)	аммиак
ionized ammonia (NH4)	ионизированный аммиак

9.5 Translate the given Russian words into the English ones:

1. The most important water quality variables are (температура, растворенный кислород и аммиак).

2. Aquaculture species are all (хладнокровные) or poikilothermic.

3. There are two primary types of culture species: (тепловодные и холодноводные).

4. (форель и лосось) are cold water species.

5. (карп, тиляпия и канальный сом) are warm water species.

9.6 Put down the corresponding adverbs and translate them using a dictionary:

Model: continuous – continuously

Word: low, high, rapid, usual, dramatic, general, particular, virtual, basic, current.

Answer the questions

1. What are the most important water quality variables?

2. What does it mean “cold –blooded” species?

3. What are examples of warm water species?

4. What are examples of cold water species?

5. What problems arise when temperature changes dramatically.

Choose and put down the words opposite in the meaning to the given ones. Translate the combinations.

Words: clear, low, marine, to absorb, cold

Model: warm water and cold water fish.

1) Warm water species -____________water species.

2) Cloudy days -___________days.

3) To dissolve oxygen-__________oxygen.

4) High concentration -__________concentration.

5) Fresh water shrimps -___________shrimps.

Find the meaning of the following words paying attention to the word-building elements.

Sufficient – insufficient

Ionized – unionized

Increase – decrease

Efficient – inefficient

Topics for discussion

1. Speak about meaning of oxygen to water organisms.

2. Speak about ammonia use in culture system.

UNIT 4

AQUACULTURAL MANAGEMENT

NUTRITION AND FEEDING

Part 1

Read the following international words and translate them. (Mind the part of speech).

Natural, ocean, organisms, culture, type, ingredients, organic, concentrations, interests, combination, final, product, diets, to synthesize, typical, vitamins, minerals, energy.