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)
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.
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Jump to station:
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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...