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Regel 9: | Regel 9: | ||
|Heading nl=Conclusions foreshore rubble |
|Heading nl=Conclusions foreshore rubble |
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|Heading en=Conclusions foreshore rubble |
|Heading en=Conclusions foreshore rubble |
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+ | }} |
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+ | {{Paragraph |
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+ | |Paragraph number=1 |
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+ | |Paragraph language=Dutch-English |
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+ | |Paragraph subheading=Hard substrate |
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+ | |Paragraph=The results show that after the first year (T1), the foreshore rubble has already resembled similar or more species than in 2014 (T0). Both at the east and the western transect, the hydroids and Bryozoans form are the most abundant, followed by sea squirts, anemones, polychaete and other groups. This order remains the same in both years. |
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+ | As expected the coverage of hard substrate species is lower after the construction work, there is a shift visible in the most dominant species in coverage from Japanese oyster to Bryozoans. Species are developing better on the ecotop substrates of sandstone/quartzite and limestone, compared to gravel. On the gravel now communities of species are developing during the measurement period. This shows the significant increase of ecological potential caused by the used ecotop. |
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+ | }} |
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+ | {{Paragraph |
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+ | |Paragraph number=2 |
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+ | |Paragraph language=Dutch-English |
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+ | |Paragraph subheading=Soft substrate |
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+ | |Paragraph=Measurements show that the presents of the ecotops structures (reef shape structures) support the development of soft sediment deposition. In the most eastern part of the study area 10-30 cm sediment layers are present. At this locations it was possible to determine the contents of soft sediment species. Results show a fast recovery of soft substrate species. At the shallow parts 5-10 different species were present, and at the deeper parts 15-25 species. |
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+ | }} |
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+ | {{Paragraph |
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+ | |Paragraph number=3 |
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+ | |Paragraph language=Dutch-English |
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+ | |Paragraph subheading=European lobster |
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+ | |Paragraph=The development of the European lobster population show a slow recovery in number of species over the period 2015 (T1) and 2016 (T2). The number of individuals per cage was 0.13-0.95 over a three day measurement period. There was no significant increase in number over the two measurements. |
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Bfn Conclusions foreshore rubble | |
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Context | Bfn Building for Nature project |
Type | Outcome |
Decompositie type | IOR |
The results show that after the first year (T1), the foreshore rubble has already resembled similar or more species than in 2014 (T0). Both at the east and the western transect, the hydroids and Bryozoans form are the most abundant, followed by sea squirts, anemones, polychaete and other groups. This order remains the same in both years. As expected the coverage of hard substrate species is lower after the construction work, there is a shift visible in the most dominant species in coverage from Japanese oyster to Bryozoans. Species are developing better on the ecotop substrates of sandstone/quartzite and limestone, compared to gravel. On the gravel now communities of species are developing during the measurement period. This shows the significant increase of ecological potential caused by the used ecotop.
Measurements show that the presents of the ecotops structures (reef shape structures) support the development of soft sediment deposition. In the most eastern part of the study area 10-30 cm sediment layers are present. At this locations it was possible to determine the contents of soft sediment species. Results show a fast recovery of soft substrate species. At the shallow parts 5-10 different species were present, and at the deeper parts 15-25 species.
The development of the European lobster population show a slow recovery in number of species over the period 2015 (T1) and 2016 (T2). The number of individuals per cage was 0.13-0.95 over a three day measurement period. There was no significant increase in number over the two measurements.
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Onderdeel van | Bfn Desiging and researching ecological potential foreshore rubble |
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