I have a pure white Koi which is 12 ' long (very big). It is with me for the last 10 years. I have only one fish in my Tank of size 1.0 m length x 0.40m x 0.40m. It is very active and healthy. Recently I notice that after 2 weeks it becomes tired and lies down and then I can see the colour of the body and fins change to pink. I immediately change water. Half tank only.
Then it becomes active again for 2 weeks. I removed all the stones in the tank to make sure that no dirt gets accumulated under the stone. Not a single dirt in the Tank now 2. The heater is kept at 26 Deg C'. Placed additional air filter and Filter. Now 3 Air filters are working. I feed only once a day with KOI STICKS 5.
On this page you can read or download Pond Water Lab Answers in PDF format. Pond water contains a number of arthropods such as copepods, water fleas and ostracods (crustaceans). These types of microorganisms are visible to the naked eye (with the largest specimen exceeding 3 millimeters in length), and can therefore be seen without the use of a microscope.
Did not check the PH level or Oxygen levels yet. My house is Air conditioned and the average temp inside is around 22-25 deg. Still this scenario happens every 2 weeks. Can you suggest why? Thanks in advance for your advise Regards George Dubai.
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Typically, will contain a variety of microorganisms with a drop of the water carrying thousands of these single celled organisms. Some of the most common living in pond water include; Arthropods Pond water contains a number of arthropods such as copepods, water fleas and ostracods (crustaceans). These types of microorganisms are visible to the naked eye (with the largest specimen exceeding 3 millimeters in length), and can therefore be seen without the use of a microscope. Some of the other organisms in this group include among others; water mites, mosquito larvae, water bears (tardigrades) water shrimp and other larger crustaceans like the water louse. Depending on the type of arthropod, some will be found on the surface (most insects) while others can only survive in the water as is the case with most crustaceans. Bacteria are some of the smallest and abundant microorganisms in all aquatic systems. In favorable conditions (E.g.
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After rainfall) bacteria can multiply and increase dramatically to their millions (millions per milliliter) within a short period of time. In pond water, bacteria can be found on the surface of different types of decaying material such as leaves, metallic objects, rocks or wood. This is one of the reasons an individual may get a serious infection after being scratched by such objects. There are different types of bacteria that can be found in a pond including.
Whereas autotrophic often categorized as algae (bring primary producers) heterotrophic bacteria play a major role in the decomposition of organic matter. While heterotrophic bacteria are often categorized as 'algae' it is important to note that they are not closely related to algae. These not only make up the larger percentage of living organisms in such aquatic systems, but also tend to display the greatest range of metabolic group as compared to others. Nostac and anabaena are some of the most common bacteria that can be found in pond water. Being, they are also responsible for the greenish coloration of pond water.
Being animal like, protozoan are very similar to simple animals. These microorganisms make up the largest group of organisms in terms or numbers, diversity as well as biomass.
As such, protozoa widely vary in terms shape, size and features. Protozoa are also an example of microorganisms that may form clusters (colonies). Like bacteria, there are autotrophic and heterotrophic bacteria. Unlike bacteria however, these also tend to consume a variety of other organisms; including algae and other protists. With the other microorganisms found in pond water, protozoa makes up the bio-film that coats sediments as well as other had surfaces. Their ability to move makes it possible for them to move from one place to another without heavily relying on water movement.
As such, they can move around consuming other organisms. Some of the most common protozoa that can be found in pond water include, paramecium and a number of.
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Hydras Hydra belongs to the class hydrozoa, most members of which can be found in marine water. However, hydras are mostly found in pond water and tend to be predatory animals, which hunt their prey.
A majority of these microorganisms tend to be small, only growing to be about 30 mm long when they are fully extended. To the naked eyes, hydra can barely be seen, and therefore at least a hand lens would be required to get a good look at them. There are different types of hydra with colors ranging from green to brown. The green color of some of these microorganisms is as a result of green algae, with which they have a mutually beneficial relationship. It is as a result of this relationship that some students may mistake hydras as belonging to the plant kingdom. Although they will mostly be found attached to a given surface, they can detach and move from one spot to another either by gliding along the surface or simply by 'somersaulting' along the surface they are attached to (substratum).
Algae Algae are protists that can be found in pond water. Most of these microorganisms are green in color, while a few may be yellowish-brown.
Algae are also diverse, and may either be unicellular or multicellular. Some of the most common forms of algae that may be found in pond water include spongomonas, as well as chlamydomonas. While some of these microorganisms (chlamydomonas) swim freely in search of food, others (spongomonas) live in gelatinous matrices and use special features to collect food without moving from one point to another. Based on their characteristics, algae may be categorized as. algae - Algae that floats on the surface of pond water. Filamentous Algae - also referred to as pond scum, this type of algae rise to the surface of the water from the bottom.
Colonial - Tends to grow in colonies. Resistant algae - they have special features and characteristics that allow them to remain resistant and therefore hard to control. Toxic Algae - Blue-green bloom forming species of algae Conclusion Pond water is also fresh water. For this reason, the two terms may be used interchangeably when talk about the types of microorganisms found in pond water. On the other hand, given that there are a variety of microorganisms that can found in ponds, it is also important to keep in mind that not all microorganisms are protists. This is because of the fact that the term is only used to refer to the group of diverse eukaryotic, which may share certain traits with animal and plants.
For this reason, most bacteria cannot be described as protists because their traits and structures differentiate them from members of the. Related: and Take a look at our page on. /by Hayley Anderson at MicroscopeMaster.com All rights reserved 2010-2018 Amazon and the Amazon logo are trademarks of Amazon.com, Inc. Or its affiliates The material on this page is not medical advice and is not to be used for diagnosis or treatment. Although care has been taken when preparing this page, its accuracy cannot be guaranteed. Scientific understanding changes over time. Be sure to take the utmost precaution and care when performing a microscope experiment. MicroscopeMaster is not liable for your results or any personal issues resulting from performing the experiment.
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