Olshansk i y V.M.(1), Volkov S.V. (2) Institute of Ecology and Evolution

Russian Academy of Sciences, Moscow
1.vmolsh@yandex.ru, 2. mendur@mail.ru .
Mashkin P.V. Pushchino

State Institute of Natural Sciences, Pushchino, Moscow region.
pmashkin@yandex.ru

Development of system for «on line» water quality monitoring in rivers, lakes, fish farms, sewage treat plants with biosensors: fresh water mussels.

It provides the determination of different substances types and concentration

in water. The methods have rish methodic and devices base.
BUT:
it is impossible estimate biological effect of sinergetic influence of all chemical substances and physical factors on living organizms using only chemical methods

we can appreciate the real danger of water pollution only when testing the viability of aquatic organisms .

Water quality monitoring methods

organizms behavior reactions (moving activity, respiration, reaction of shells
closing,

changes in heart rate or electrical activity)
on differents types of water pollution.

Water organisms – fish and mussels – response «on line» on total influence - chemical and physical factors.

The biological methods can’t detect type of pollution,
it signals only about dangerous level for water animals.

river self purification system. It dominates in benthos biomass.
They are

species - indicator in rivers, can live in aquarium long time. They live under limit moving activity under experimental conditions, can live long time without food.
It is possible to registrate cardio rates of each shell by infrared optocouples (picture 1). Sensors could be fixed on shells near pericard without of injury.
It is possible to registrate shells valves disclosure with Hall sensors.
Difficulties of mussels viability monitoring: sometimes mussels close it shells for one — two hours even in clear water. They have individual physiological features, such as the shape and rate of cardio rhithm.

control of sea pollution with oil.
No research

data about sensitivity blue mussels to oil, only reclaim information.

Fresh waters:
AquaDect company (www.mermayde.nl) ( Holland).
Device : Mosselmonitor, Dreissena monitor ( 35 years on market)
Device was modificate in Poland. Used in Hungary (sewage treat factory).
In Russia used in Vladyvostok, Ekaterinburg on drinking water inlets. Used old prinsiple: it control only closing -opening shells. Now not in eploitation.
Device: Laser opto - fiber foto pletismograph Russia St. Petreburg. Used fresh water cray fishes.
Besids, in different countries there are experimental devices in the only exemplar.
Our experiments with Anodonta and Unio show that for effective water quality control have to use both parameteres: cardiograms and level of opening shells.

World analog of the devices

histogram of distribution time intervals between beads (right)

time. Right- distribution of heart beads period. Bottom - avarage

time of cardio cycles for every 10 minutes

sensors

mode.
The system supports the stability of the physical properties

of water.
Redirecting of water flows through the various test tanks is done automatically every 10 minutes.
Heart rate and the disclosure are tested continuously separately for each mussle.
The information about the status of each mollusc is displayed in real time on the monitor.
A summary of the status of all shellfish is displayed on a separate monitor in the form of plain equipment operator.

cardio signals and sensitivity to different pollutants of China

species. Growing most sensitive species in clear waters on fishery farms.
2 stage. Produce experimental seria new equipments: -for control drinking water quality on water inlet station (mussels and electric fishes).
-sewage water treat station, toxicology and veterenarian laboratories (mussles).
3 stage. Sertification all kinds of the devices in China, marketing study.
4 stage. Industrial producing all kinds of equipments for China and other countries.

protection organizations.
State toxicological and veterenarien laboratories.
Universities and institutes (for biological

practicums)
Schools and colleges (devices for children research study)
Busness persons.(Production serial devices)