marindro's blog

11 August, 2008

Pond Water Color – 03 – The Criterias

Posted by marindro at 8/11/2008 05:54:00 PM

The criterion of pond water color criterion which able to make a standard reference in pond water quality management are among others:

The pond water color is old green, it is mean show an existence of chlorophyceae dominancy with it characteristic more stable to change of environment and weather because having a long mortality period. Growth level which relative quickly very have potency to create booming plankton in the pond water.
The pond water color is brownish, it is mean show an existence of diatomae dominancy. This plankton type is one of natural feed supplier for shrimps, so that growth level of shrimps more quicker. The stability level of this plankton is not stable enough especially at season with high rainfall level, so that have potency to create a plankton collapse condition and if it’s management not accurately, so the stability of pond water quality will become fluctuate and will bother the level of comfortable of within pond water.
The pond water color is green to brownish, it is mean show that a dominancy which happened is mixing among chlorophyceae and diatomae which have stabilize character which supported with natural feed availability for shrimps.

The standard of pond water color like mentioned above is practical reference to identifying the kind of plankton as effort to detection of problem of water quality early. Besides the standard color there are some pond water colors which are ordinary to be met in shrimp culture activity, for examples:

The pond water color is yellowish, it is mean show the existence of dominancy of cyanophyceae phytoplankton type. At pond water like this, the shrimps have paler color and usually accompanied with degradation of shrimp’s appetite and if it is not anticipated immediately, it can generate damage to shrimp’s hepatopanchreas.
The pond water color is green to yellowish dominant which mean show the existence of dominancy of dynophyceae phytoplankton type which have an impact is same with point (1).
The pond water color is blue to greenness, it is mean show the existence of dominancy of blue green algae which have an impact is same with point (1).
Green color camouflage, at this condition the pond water is impressing greenness but basically it is not have/minimize contain the plankton. This matter happened usually at pond water which have plankton seed is very less but activity of fertilization move along, so that color which generated is color that created by influence of weather. This occurrence knowable by measure pond water transparency which usual have very high transparency, or with seeing the water color on the water wheel which is operated.

Practical identify of the plankton kind in pond water withy seeing pond water color be like have been discussed like mentioned above are need supported by periodical monitoring and laboratory analysis to get more accurate results. This activity is done by intake pond water sample and shrimp sample from the ponds both for having problem or no, so that can be taken its comparison.

If you liked this post, please push this button

Subscribe in a reader

Related Posts :

Pond Water Color – 02 – Analysis Aspects

Posted by marindro at 8/11/2008 05:42:00 PM

The aspect which needed to pay attention in assessing and analyze the pond water color mainly covers:

The kind of dominant plankton.
The abundance of dominant plankton
The condition and quality of shrimps.

Analysis to the kind of dominant plankton to be based on a characteristic and problems level which possibly generated within pond water and its influence to other organisms. The pond water which dominated by an beneficial plankton type and it have a comfortable and safe influence for other organisms, a decision which needed to take is how to maintain it, while if the plankton dominancy that created from a harmful plankton type hence needed a replacement of plankton dominancy with reducing pond water in big volume and process of beneficial plankton seed inoculation from other pond accompanied with fertilization.

The abundance of dominant plankton within pond water has a close relation with level of pond water transparency like have been discussed before all. The abundance which too high from the harmful plankton type will very endanger for shrimps and can generate the serious problem if it is not soon anticipated.

Pond water color analysis which related with dominancy of selected plankton type has to consider at quality and condition of shrimps which living within pond water. This situation can be interpreted that though plankton dominancy within pond water is a beneficial type but if condition and quality shrimps become degradation, hence is something problem within pond water so that needed to perform an identify and analyze to a problem maker accurately. On the contrary if pond water color monitoring show the existence of harmful plankton dominancy while the quality and condition of shrimps under normal condition, hence the process of pond water replacement need conducted step by step and continually in order not to generate stress for shrimps till to plankton dominancy within pond water replaced with new one and have beneficial character.

If you liked this post, please push this button

Subscribe in a reader

Related Posts :

Pond Water Color – 01 – Logical Basic

Posted by marindro at 8/11/2008 05:32:00 PM

Basically, pond water color happened caused by dominancy of selected kind of plankton which growing and expands within pond water. This parameter can used as one of practical standard of pond water quality thoroughly visual monitoring by paying attention the condition and quality of shrimps in the water under color of idea be like following as bellows:

Phytoplankton have a specific color which caused by content of chlorophyll which differ among the kinds one with other.
Plankton have a specific characteristic in conducting it activity process included biological, chemistry, physical and ecology which differ among the kinds one with other.
Phytoplankton is main producer in food chain within pond water, so it’s dominancy have an impact to life of other organisms.
There is not all of the plankton kinds which growing pond water have a beneficial character for the shrimps and other organisms or in pond water, so that dominancy from selected type will have an impact to comfortable level for other organisms within pond water.

The logical basic like mentioned above is showing that pond water color which caused by existence of dominancy of selected plankton type is referable on decision making concerning pond water quality. Plankton dominancy factors within pond water can happened because influence of plankton seed which entered into the pond and a treatment which applied in process of plant and management of plankton. At early forming of pond water, the plankton seed which entered into pond water is possibility has dominancy and then grows and expands within pond water later. At other case the plankton seed which entered into pond water not yet happened dominancy, but a treatment that applied enable happening of growth of selected plankton type so that dominant within pond water.

If you liked this post, please push this button

Subscribe in a reader

Related Posts :

08 August, 2008

Physical Condition of Pond Water

Posted by marindro at 8/08/2008 05:21:00 PM

Mainly a physical condition of pond water is a situation of pond water that evaluated from existence and vision of the physical particles which met in the water. The particles become emerge as process effect that happened within pond water ecosystem as well as caused by shrimp culture technical factors so that indirectly follow to influence for life of the organisms within it. The physical condition of pond water also can be made as one of a standard of pond water quality under color of idea as follows bellows:

Appearance of the particles can be made a signal that have happened an abnormal process (biology, chemistry, physical) within water.
In big number and long duration can cause annoyed of physiological function of shrimps and other organisms.

The particles can find in various measure there are small fairish and big that caused by accumulation process that happened within water. Appearance of the particles can find in water layer although appear at water surface. Through careful monitoring hence the particles appear will be able to seen even detected the cause of its problems since early. Some physical condition of pond water which ordinary to be met are among others:

A “dusty” pond water, this condition to describe that within pond water emerge a very smooth particles and drift because it is not dissolve or settle within pond water. The condition like this can result the trouble to shrimp gills and at specific time period can result disease of red gill. An applicable treatment to overcome this problem is by improving water circulation either from frequency side and its volume continually. Usage saponin at selected dose expected can fasten the particles within pond water.
A ”foamy” pond water, at this condition of pond water surface visible seen foamy and will be more clear looked when water wheel operated. This matter designate that in the water have happened plankton mass mortality which able to generate water ecosystem balance become collapse, pond water transparency tend to unstable, dirty pond bottom that caused by plankton carcass sediment. Technical treatment which able to be used to overcome this condition is by doing water circulation continually and at some stage can be done plankton seed inoculation continually from other pond accompanied with improvement of dose usage of fertilizer or usage of organic materials.
Appearance “klekap” (Indonesian terminology = dirty material on pond water surface). The “klekap: basically is mixture among pond bottom dirts with plankton carcass which upraised to water surface caused by oxidize process with constructed by sunshine. This condition happened because dirty of pond bottom and pond water transparency is too high. The “klekap” if have dropped again in pond bottom there will be deterioration and can cause increase of content of H2S and NH3 in pond water and can dangerous for shrimps. Appearance “klekap” on the pond water surface can be overcome with lifting them from pond water surface and cleaning the pond bottom which balanced with water circulation continually and reforming the pond water quality through plankton regeneration which have died by plankton seed inoculation and fertilizing with dose matching with requirement.
Growing of moss within pond. This condition happened because pond water transparency is too high and takes place old in a condition and accompanied with the fertilization process continually. The moss growing in pond will pursue activities and motion of shrimp also plankton plant process harder. Moss will lose if penetration of the sunshine that assists growth of moss blocked by plankton at selected water transparency.

The four conditions like mentioned above is the matter that often met at pond which in monitoring of pond water quality is not careful enough or giving of technical treatment which less precise at its target. The pond water with water quality and shrimp condition matching with balanced ecosystem will influence the profile and quality of physical condition of pond water and make it will awake by itself and also very depend on strive to maintain the condition.

If you liked this post, please push this button

Subscribe in a reader

Related Posts :

02 August, 2008

Pond Bottom Condition - 03 – Base of Consideration

Posted by marindro at 8/02/2008 06:38:00 PM

In order to anticipate the problems hence needed incidental monitoring to pond bottom such as have been explained above and periodic monitoring that is by lifting dirt and black mud especially which reside in water outlet with a water pump and spiral pipe by inhaling the dirt and the black mud and throw away it through water outlet channel. This activity better is also followed with monitoring of shrimps death level in pond bottom passing the way take sample of shrimp carcass and its quantity which met to be identified problems level as base of decision making. Some needed matters to consider before doing this activity are, among others:

The condition and quality of shrimps, because periodical lifting activity of dirt and black mud will give shake to water quality stability that it able to generate stress at shrimps. This activity better be conducted at the time of really good shrimps condition with high endurance level to stress, while at shrimps in mass moulting situation expected don't conduct this activity because the shrimps on weak condition and lower endurance level to stress.
The weather situation at that moment better reside in condition which able to support the return forming process of water quality after conducted lifting of dirt and mud of pond bottom.
The tide condition which support fluency of pond water replacement and throwing away of dirt and black mud to water outlet channel.
The reforming of pond water quality that experience of shake effect of the activity up at balance pond water ecosystem within pond.
Shrimp condition monitoring after conducted activity of lifting and cleaning of pond bottom.

After conducted pond bottom cleaning by lifting of dirt and black mud there is better be followed with giving of soft chalk into pond water with dose as according to need with a purpose to return/improve acidity level of pond bottom. The giving of this chalk can be conducted periodically besides to take care of pond bottom acidity also needed to support the process shrimp moulting which having periodic character.

Pond bottom condition which controlled and monitored as well and careful besides improve the pond water quality also will support at the time of later to harvest the shrimps. The cleanness pond bottom will facilitate the harvesting process and take an impact to shrimp quality; on the contrary dirty pond bottom and full of mud will complicate the harvesting process and can generate a degradation of the shrimp quality yielded. Besides pond bottom condition also follow to take an impact to other technical program implementation especially in course of the decision making which having the character of treatment and harvesting.

If you liked this post, please push this button

Subscribe in a reader

Related Posts :