Hydrobiology

Lesson 2

1. Pronounce correctly:

[ai] - biology, science, divide

[o:] - organism, morphology, sought

[e] - development, lentic, freshwater

[ə:] – early, research, turnover

2. Read the words.

ecology

hydrobiology

taxonomy

biology

morphology

physiology

limnology

3. a) Cover the right column and read the English words. Translate them into Russian and check your translation.

b) Cover the left column and translate the Russian words back into English.

lotic water taxonomy water bloom indices EU European Union biocenose, cenosis

проточная вода систематика, таксономия "цветение" воды индексы ЕC (Европейский союз) биоценоз

4. Read the words and put down their Russian equivalents:

economic biology ________________________________

industrial biology ________________________________

sewage treatment ________________________________

water purification ________________________________

the microbial loop ________________________________

distinguishing aspect ______________________________

ionic composition ________________________________

flowing waters __________________________________

a sub-discipline _________________________________

acidification ____________________________________

5. Change the words according to the model. Translate the words.

Model: expansion, to expand – растягивать

generalization, to ________________ - ______________

classification, to _________________ - ______________

reflection, to ____________________ - ______________

relation, to _____________________ - ______________

impression, to __________________ - _______________

6. Put down the Russian for:

использование водных ресурсов __________________

гравитационный песочный фильтр ________________

кислотный дождь _______________________________

водоснабжение _________________________________

современный _________________________________

биогеоценоз __________________________________

гидробиолог __________________________________

биоценоз _____________________________________

фосфор ______________________________________

7. Master the words.

lentic - 1) стоячий (о воде) 2) обитающий в стоячих водоёмах

fertilization - 1) удобрение почвы, внесение удобрений Syn: fertilizing 1. 2) оплодотворение; опыление

the fertilization of the date-palms - опыление финиковой пальмы Syn: fecundation

limnology - лимнология (наука о физических, химических, биологических аспектах озер и пресных водоемах)

elucidation - консультирование, объяснение, разъяснение Syn: explanation, interpretation, clarification

eutrophication - эвтрофикация (зарастание водоёма водорослями)

8. Read and translate the text.

Hydrobiology is the science of life and life processes in water. Much of modern hydrobiology can be viewed as a sub-discipline of ecology but the sphere of hydrobiology includes taxonomy, economic biology, industrial biology, morphology, physiology etc. The one distinguishing aspect is that all relate to aquatic organisms. Much work is closely related to limnology and can be divided into lotic system ecology (flowing waters) and lentic system ecology (still waters).

One of the significant areas of current research is eutrophication. Special attention is paid to biotic interactions in plankton assemblage including the microbial loop, the mechanism of influencing water blooms, phosphorus load and lake turnover. Another subject of research is the acidification of mountain lakes. Long-term studies are carried out on changes in the ionic composition of the water of rivers, lakes and reservoirs in connection with acid rain and fertilization. One goal of current research is elucidation of the basic environmental functions of the ecosystem in reservoirs, which are important for water quality management and water supply.

Much of the early work of hydrobiologists concentrated on the biological processes utilized in sewage treatment and water purification especially slow sand filters. Other historically important work sought to provide biotic indices for classifying waters according to the biotic communities that they supported. This work continues to this day in Europe in the development of classification tools for assessing water bodies for the EU water framework directive.

9. Answer the questions:

1. What is hydrobiology?

2. What defines relationship between lotic system ecology and lentic system ecology?

3. Is one of the significant areas of current research eutrophication?

4. Another subject of research is the acidification of mountain lakes, isn't it?

5. What is important for water quality management?

6. What is the one distinguishing aspect of hydrobiology?

10. Define the meaning of Hydrobiology.

Дата добавления: 2014-12-26