Note: If the 3D Map does not work, you require a "Google Earth Plugin". It can be downloaded here.
Click on a heading below to open it
The HMAP Historical Atlas of Marine Ecosystems employs the popular Google Earth engine to provide a 3D experience. This global atlas of historical fishing grounds develops global perspectives of how marine life and ecosystems in the oceans have changed over time. The atlas identifies areas of historical human-environment interactions and assesses the cumulative, long-term impact of fishing and climate change upon these areas or marine ecosystems.
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The HMAP Datasets may be presented visually to offer a different perspective on past marine animal populations. Developments in visualisation technology facilitate GIS Mapping (Aquamaps, Arc GIS, etc.), standard data charting (Microsoft Excel, Microsoft Project, etc.), Statistical data analysis (IBM SPSS, QSR NVivo, etc.) and our uniquely developed HMAP Google Earth plugin. Google Earth should be installed in order to use this facility.
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| Download DIVA-GIS - a free license, open source, public domain basic GIS package. |
GIS data may be extracted from HMAP datasets and utilised in commercially available mapping software. Alternately, preformatted and ready to use Disaggregated data may be applied.
Salmon Catches in the Swedish Baltic Sea 1900 to 2000
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The image on the left graphically depicts fishing grounds off the Swedish coast where Salmon have been typically caught (red dots). Based on the size of the red dots, the volume of salmon caught between 1900 and 1925 is indicated. The volume of fish caught, on average per year during this period, ranges from up to 20,000 tonnes (small red dot) to over 200,000 tonnes per year (largest red dot). What we see here is a rough depiction of actual data that have been researched in HMAP Dataset 8: Swedish Baltic Catches. NOW... HOVER OVER THE IMAGE WITH YOUR MOUSE Notice how the map changes to show the period 1925 to 1950. This is the same region (Swedish Baltic) but we can clearly make out that many of the red dots are noticeably larger than before. Here we have a clear indication that between 1925 and 1950, catches of Salmon increased in average compared with the previous 25 years. But this is not where the story ends. Look at what follows...
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Here we have the same region again but depicted from 1950 to 1975. There has clearly been a radical reduction in the volume of salmon caught. Notice that only a few red dots remain, showing us that the grounds of the past were no longer fished during this period. Why is this? What happened to the fish? What happened to the fishermen? HMAP is dedicated to addressing these sorts of questions, which is why this data is being collected and collated for serious scientific and historical research. NOW... HOVER OVER THE IMAGE WITH YOUR MOUSE From 1975 to 2000 the fishing grounds that yielded Salmon virtually ground to a halt. This is the situation we find ourselves in today. Is this the end of the fishing industry? What about all the other species of fish that have been caught? Is their story the same? If you would like to investigate this further, download Dataset 8: Swedish Baltic Catches on the Data Store page. Look at the data for yourself and draw your own conclusions. There are many more datasets to download, and many other data files that contain valuable information for you to examine.
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