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Scientific results

Samples have been already pretreated, and now are being analised. As data would appear it will be published here.



ANOTHER MYSTERIOUS ALGA
5.11.2010

As survey of Svalbard's intertidal zone continues new mysterious being was encounted. Small green bushes inhabited muddy Adventelva's tidal flat (the very end of Adventfjodren), and weren't observed before (at least according to what we know).
After closer look it turned out its tube dwelling diatom belonging to Gyrosigma genus, we suppose.

Please find some pictures below. (links open in new window/tab)


habitat

10x overview

10x bottom part

40x tube

tube with cells

tube 2

60x cell burned

60x cell burned 2




GAMMARUS INDEX

We associate presence of Gammarus oceanicus with warmer atlantic waters, and Gammarus setosus with colder arctic water masses. The figure below show occurence of those two species ratios at stations.




Occurrence of Gammarus oceanicus (orange - atlantic water) and Gammarus setosus (blue - arctic water) at stations.




SPECIES OCCURENCE AND QUANTITIES AT STATIONS

Please find here tables of species identified at stations. Those are raw data. Two stations are still lacking, but will be soon available (as soon as we finish its examination). Two formats of data are presented - density in case of macrofauna or wet weight per square meter for macrophytes.





Jump to station:
STATION 104.1
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
skjerra 2 Fabricia sabella 48 x


Littorina shell + +


Mollusca sp. 32 x


Oligochaeta sp. algal 592 x


Semibalanus balanoides 240 x


Acrosiphonia flagellata x 0,8


Delamarea attenuata x 22,50


Detrytus x 44,14


Enteromorpha porifera x 0,58


Fucus sp. Juv. x 9,54


Pilayella litoralis x 11,22

3 Fabricia sabella 48 x


Margerites helicinus 32 x


Oligochaeta 320 x


Onisimus litorallis 16 x


Semibalanus balanoides 944 x


Turbelaria sp. dotted 80 x


Delamarea attenuata x 6,58


Detrytus x 11,04


Enteromorpha porifera x 0,72


Fucus sp. x 1,66


Pilayella litoralis x 25,26
STATION 106.1
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
skjerra 1 Gammarus oceanicus 512 x


Littorina saxatilis 5888 x


Oligochaeta 2048 x


Dictiosiphon foeniculaceus P P


Fucus cf. Fucus evanescens x 680,2

2 Gammarus oceanicus 13312 x


Littorina saxatilis 25600 x


Oligochaeta 512 x


Dictiosiphon foeniculaceus x P


Fucus cf. Fucus evanescens x 680,44

3 Buccinidae sp. juv. 512 x


Fabricia sabella 4608 x


Gammarus oceanicus 3072 x


Littorina saxatilis 31744 x


Oligochaeta 5120 x


Dictiosiphon foeniculaceus x P


Fucus cf. Fucus evanescens x 446,76
STATION 113.3
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
beach 1 Turbelaria sp. white 3584 x


Gammarus setosus 32 x


Oligochaeta 32 x


Gammarus sp. juv. 16 x

2 Turbelaria sp. white 7632 x


Oligochaeta 176 x


Gammarus setosus 96 x


Bryozoa unid. Present x

3 Turbelaria sp. white 4736 x


Oligochaeta 789,33 x


Gammarus setosus 592 x
STATION 113.4
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
beach 1 Oligochaeta 144 x


Turbelaria sp. white 96 x


Onisimus litorallis 80 x

2 Oligochaeta 80 x


Onisimus litorallis 48 x


Turbelaria sp. white 48 x

3 Oligochaeta 656 x


Turbelaria sp. white 80 x


Onisimus litorallis 32 x
STATION 120.1
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
beach 1 Turbelaria sp. dotted 19584 x


Turbelaria sp. white 896 x

2 Turbelaria sp. dotted 11722,67 x


Turbelaria sp. white 1418,67 x


Oligochaeta 74,67 x

3 Turbelaria sp. dotted 7141,33 x


Turbelaria sp. white 693,33 x


Oligochaeta 69,33 x
STATION 120.9
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
beach 1 Turbelaria sp. dotted 21760 x


Oligochaeta 5168 x


Turbelaria sp. white 816 x

2 Turbelaria sp. dotted 18816 x


Turbelaria sp. white 1920 x


Oligochaeta 768 x

3 Turbelaria sp. dotted 65920 x


Oligochaeta 4352 x


Turbelaria sp. white 1792 x
STATION 122.2
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
beach 1 Turbelaria sp. white 496 x


Oligochaeta 48 x

2 Oligochaeta 208 x


Turbelaria sp. white 48 x

3 void 0 x
STATION 126.1
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
skjerra 1 Fabricia sabella 2560 x


Gammarus oceanicus 768 x


Oligochaeta 2048 x


Delamarea attenuata x 12,22


Fucus sp. cf F. Evanescens x 187,62


Scytosiphon tortilis x 11,26

2 Capitella capitata 4960 x


Fabricia sabella 63840 x


Dictiosiphon foeniculus x -9999


Fucus sp. x 62,96


Nitkowate x 392,48


Sphacelaria plumosa x -9999

3 Fabricia sabella 448 x


Gammarus oceanicus 256 x


Oligochaeta 80 x


Fucus sp. cf F. Evanescens x 2,43


Pilayella litoralis x 2,08
STATION 127.1
PLACE REP TAXON DENSITY WET WEIGHT



[ind/m2] [g/m2]
beach 1 Turbelaria sp. white 80 x


Turbelaria sp. dotted 32 x

2 Turbelaria sp. dotted 96 x


Turbelaria sp. white 96 x

3 Turbelaria sp. white 80 x










skjerra 1 Oligochaeta 8912 x


Gammarus oceanicus 560 x


Fabricia sabella 16 x


Pilayella litoralis x 165,12


Acrosiphonia flagellata x 6,72


Fucus sp. x 0,64


Scytosiphon lomentaria x 0,16

2 Oligochaeta 160 x


Turbelaria sp. white 48 x


Gammarus oceanicus 32 x


Pilayella litoralis x 20,96


Acrosiphonia flagellata x 25,12


Scytosiphon lomentaria x Present

3 Oligochaeta 416 x


Turbelaria sp. dotted 64 x


Gammarus setosus 32 x


Pilayella litoralis x 62,08
To be continued...