Marimsys Charts
Marimsys Charts are made from client data by Marine Imaging Systems at our shore computer facility. Soundings are taken by the client vessel and saved to hard disk, while the vessel is fishing. These soundings are concentrated over the areas in which the vessel fishes - because that is where the vessel spends its time at sea. Thus charts are focussed on exactly the right area for the vessel or fleet. Marimsys BRIDGE has a menu option to export chartmaking data. That data is then transferred to us over the Internet.
When we make Marimsys Charts we use powerful computers and various software routines to interpolate in the blank areas between the soundings. You no longer see disconnected soundings here and there, with one or two contour lines drawn in - as you might on a conventional computer plotter, you see the seabed contours in great detail on a private bathymetric chart. This chart then forms the backdrop for all fishing activities. When you look at the contour line under the point of the vessel position arrow, it will match the number you see on your echosounder within a meter or two.
These detailed Marimsys Charts make it possible to "see" where you are going on the ocean floor for the first time. You can see ahead and make decisions about what you will do before you get there. You do not just see the bottom where you are now, and where you were a few minutes ago by looking at the depth track on the echosounder - you concentrate on where you are going to be a few minutes in the future - so that you go to exactly the right place to catch fish and avoid obstacles.
These highly detailed contour maps enable you to understand the bottom you are trawling over. Contour lines can be as tight as a meter or two, and Charts can cover areas as small as one mile by one mile. When you have these charts loaded into your BRIDGE system - it will change the way you fish. You will begin to make the connections as to habitat and fish captures - because you can now see the habitat on the screen. As you continue collecting new soundings in the same area, that data is added to your existing charts to create greater detail - they get better over time. New data from different areas is used to make new charts of those areas.
Logging includes trawl temperature, if a thermometer is in the circuit;
Obstacles are located down to tighter than GPS tolerances;
You can chart new areas before risking the net to trawl them.
Your catch reports display over the Marimsys Chart (or any other chart loaded in the system) to GPS accuracy.
Your catch icons show if your best results are on the top, or side of hills, or down in the gullies.
Compare the seasons and times of day and tide where the fish are located.
Do statistical surveys, of water temperature, catch records and depth.
Bottom logging is automatic at the time interval you select.
It will take some weeks to gather the data to make Marimsys Charts, depending upon the size of the area you fish, and the number of soundings needed. When there are a sufficient number of soundings, we prepare Marimsys Charts at a shore commuter facility. Then when you get the image files back from Marine Imaging, you load and Auto-calibrate the image (takes about 10 seconds) and then select the charts you want to view. This Chart shows a great amount of detail of the bottom because:
It can represent only a small area, down to less than a mile square, or,
the chart can cover the Atlantic Ocean South of the Equator,
The client selects the spacing between contours - down to sub 1 meter contours,
Marimsys charts can be rapidly and accurately zoomed to many multiples of their normal size,
The chart is colored to accent the contours, features or specific contour levels that are important to the Client.
As you are fishing over the chart, you can display a graph of trawl level temperature or surface water temperature depending upon what instruments you have available. This will help you to know when you are getting to the target temperatures and increase the odds of encountering the correct species of the size desired. Additionally, you can display a depth graph, which indicates the contours that you have recently passed over.
While 95% of our charting is Marimsys Charts, that is charts of the bottom, we plot some other interesting phenomenon in the other 5%. We can create charts based upon temperature readings and latitude and longitude. This process will take the actual temperature readings from your tracks back and forth over an area, and interpolate the temperatures found between the tracks. This can be printed on a transparency and placed over a Satellite Temperature Chart or Bottom Chart of equal scale. With this method we can show both the two dimensions of Chart reference (latitude and longitude) and any or all of depth, bottom temperature and surface temperature. This use of three to five dimensional plots can be quite useful to compare variables. There is a caveat - temperature measurements must be taken over a short time period, or they will change!
With Marimsys Charts you can trawl over "Net eating" bottoms like you avoid potholes in an automobile. You can "see" the obstructions. The high cost of net repair is mostly in the vessel overhead and depreciation that tick away much faster than the labor and twine which go into the repair. Avoiding this can save significant costs. On the other side, you can get into more productive fishing areas - many fish species live in the hard bottom and only dart out onto the flat areas to feed - you can see new routes in between the obstacles which were not possible to trawl before. There are many places in the world's oceans that have been "First Fished" with Marimsys Charts - others tried before our clients did it with Marimsys Charts - the difference is that our clients brought their nets back up in one piece - and generally with quite a few tons of fish in them!
Click the image to look at a Marimsys Chart pull up the text describing this image Marimsys Chart Text and see how reasonably they are priced Marimsys Charts - production pricing. Then you will want to read about Marimsys BRIDGE the system that makes it all happen.