SIP-2015

Scientific results

Table 1. Number of individuals collected with hand net during low tide on stations, July/August 2015
station nr	station name	Gammarus setosus	Gammarus oceanicus
1	Agskjera, Isfjorden	0	42
2	Hamburgbukta	0	71
3	Gravneset, Magdalenefjorden	5	51
4	Bjornhamna, Sorgattet	56	2
5	Sallyhamna	5	57
6	Grahuken	16	4
7	Verlegenhuken	75	5
8	Ringpollen, Sorgfjorden	51	3
9	Tommelpynten, Hinlopenstretet	57	2
10	Binnebukta, Wilhelmoya	32	0
11	Koristkabreen, Kapp Payer	43	0
12	Heimland, Barentsoya	41	0
13	Teistpynten, Mohnbukta	4	0
14	Crollbreen	13	0
15	Isbukta, S shore	41	0
16	Sorkapp	4	67
17	Palffyodden	0	41
18	Calypsobyen, Bellsund	8	52
19	Steinneset, Bellsund	2	46
20	Lewinodden, Isfjorden	5	55
	Ny Alesund	30	38

Gammarus species distribution
around Spitsbergen intertidal zone in 1980-85, after Węsławski (1994)

Gammarus species distribution
around Spitsbergen intertidal zone in 2014-2015 - this project

Gammarus setosus

Gammarus oceanicus

Range extension of a boreal amphipod Gammarus oceanicus in the warming Arctic.
Węsławski J.M., Dragańska-Deja K., Legeżyńska J., Walczowski W. 2018, Paper submited to Ecology & Evolution

Table 2. Localisation and habitat description of sampling sites at which *Gammarus oceanicus* and *Gammarus setosus* individuals
were collected during the 1980-1993 and 2000-2016 sampling campaingns.
ICE: ice situation as was assessed from www.meteo.no/ice and archival own data and codded according the following scale: 1- fast ice occurrence <1 month, 2 - fast ice occurrence 1-5 months, 3 - fast ice occurrence >6 month. ALGAE: algae cover on the intertidal was assessed from the visual survey of Svalbard intertidal project (www.iopan.gda.pl/projects/SIP/) and codded according the following scale: 1 - none (bare rocks or stones), 2 - microbial film of green algae- microphytobenthos on hard surfaces, 3 – thick macroalgal cover (turfs of green and brown algae). WAVES: exposure to waves was assessed from the sea charts and observation of the coast (www.iopan.gda.pl/projects/SIP/) and codded according the following scale: 1- very exposed - open coast with direct oceanic waves, 2 - partly sheltered fjords and large bays affected by local waves, 3 - shetlered areas - innermost fjord basins, sheltered with islands with little exposure to local waves WATER MASSES: presence of Atlantic (ATL) and Arctic (ARC) waters was assessed from the hydrographic studies of present authors and literature FRESH: fresh water ccurrence was assessed from the hydrographic studies and observations of present autohrs and codded as: 0 - sites outside fresh water influence, 1 - sites influenced by rivers, lakes or glacial outflow. GAMMARUS columns show the number of individuals identified to species level from the particular site.
Collection	Site name	Latitude	Longitude	ICE	ALGAE	WAVES	WATER ATL	MASSES ARC	FRESH	G. oceanicus	G. setosus
1980-1993	Schonrockfjellet	77.3572	17.5375	3	1	2	0	1	0	0	15
1980-1993	Brimoden	77.3092	17.4475	3	1	2	0	1	0	0	15
1980-1993	Crollbreen	77.2062	17.3638	3	1	2	0	1	0	0	15
1980-1993	Hambergbukta	77.0505	17.2426	3	1	1	0	1	1	0	15
1980-1993	Isbukta	76.8326	16.9404	3	1	1	0	1	1	0	15
1980-1993	Skolthuken	76.7064	17.1436	2	1	2	0	1	0	0	15
1980-1993	Kikutodden	76.6027	16.9612	2	1	2	0	1	0	0	15
1980-1993	Moloen	76.5851	16.8797	2	2	2	0	1	0	25	75
1980-1993	Skjemmeneset	76.5656	16.5854	3	3	1	0	1	0	15	85
1980-1993	Tokrossoya	76.5600	16.2989	1	3	2	1	1	0	85	15
1980-1993	Langstranda	76.6297	16.3169	1	2	3	1	1	1	75	25
1980-1993	Breineset	76.8006	15.7847	1	2	3	1	0	0	15	0
1980-1993	Palffyodden	76.8985	15.5192	1	2	3	1	0	0	15	0
1980-1993	Lisbetelva	76.9192	15.6767	1	3	3	1	0	1	15	0
1980-1993	Hofferpynten	76.9458	15.2570	1	3	2	1	0	1	10	90
1980-1993	Stone City	76.9622	15.9393	1	2	2	1	0	1	0	15
1980-1993	Samarinvagen	76.9667	16.1902	3	1	1	1	0	1	0	15
1980-1993	Bauten	76.7211	16.1562	3	1	1	1	0	1	0	15
1980-1993	Selbukta	77.0100	16.2700	3	1	1	1	0	1	0	15
1980-1993	Hyrneodden	77.0267	16.0578	2	2	1	1	0	0	0	15
1980-1993	Luciapynten	77.0500	15.9100	2	2	1	1	0	1	0	15
1980-1993	Gnalodden	77.0152	15.8784	2	1	1	1	0	1	0	15
1980-1993	Isbjornhamna	77.0058	15.5981	1	2	2	1	0	1	10	90
1980-1993	Rotjespynten	77.0058	15.3172	1	2	3	1	0	0	90	10
1980-1993	Hyttevika	77.0503	15.1431	1	3	3	1	0	0	15	0
1980-1993	Nottinghambukta	77.0650	15.1081	1	3	3	1	0	1	15	0
1980-1993	Vimsodden	77.1117	15.0294	1	1	3	1	0	1	15	0
1980-1993	Kapp Borthen	77.1714	14.4489	1	2	3	1	0	0	15	0
1980-1993	Steinodden	77.2844	14.2639	1	2	3	1	0	0	15	0
1980-1993	Dunderbukta	77.4789	13.9953	1	2	3	1	0	0	50	50
1980-1993	Klokkeodden	77.5583	14.0764	1	3	3	1	0	0	15	0
1980-1993	Calypsobyen	77.5594	14.5178	1	3	3	1	0	0	75	25
1980-1993	Vestervagen	77.5167	14.5239	2	1	1	1	0	1	0	15
1980-1993	Fagerbukta	77.5056	14.7669	2	1	1	1	0	1	25	75
1980-1993	Malbukta	77.5503	14.9253	1	3	2	1	0	0	0	15
1980-1993	Ingebritsenbukta	77.5439	15.0989	3	2	2	0	0	0	0	15
1980-1993	Slettebu	77.5353	15.3422	3	2	1	0	0	0	0	15
1980-1993	Sore Nathorstmorenna	77.8561	16.0794	3	1	1	0	0	1	0	15
1980-1993	Mullerneset	78.4878	12.3542	2	2	2	1	0	0	20	80
1980-1993	Kaffioyra	78.6294	11.9425	2	2	2	1	0	1	10	90
1980-1993	Ossian Sarsfjellet	78.9669	12.4611	3	1	1	1	0	1	0	15
1980-1993	Kapp Guissez	79.0689	11.6597	2	2	2	1	0	0	10	90
1980-1993	Ministerodden	79.2661	12.0381	3	1	1	0	0	1	0	15
1980-1993	Smeerenburg	79.6239	11.4033	1	2	2	1	0	0	10	90
1980-1993	Idrottnesset	79.8300	12.1958	1	2	3	1	0	0	0	15
1980-1993	Einsteinodden	79.0431	16.2894	3	2	1	0	0	1	0	15
1980-1993	Dirksodden	79.6906	15.6858	2	2	2	1	0	0	0	15
1980-1993	Bangenhuk	79.8739	15.7003	1	2	3	1	0	0	10	90
1980-1993	Verlegenhuken	80.0583	16.2383	1	1	3	1	0	0	5	90
1980-1993	Eremitten	79.1672	19.2497	3	1	2	0	1	1	0	15
1980-1993	Tumlingodden	78.9687	20.4034	3	1	2	0	1	1	0	15
1980-1993	Lewinodden. Isfjorden	78.0798	13.7203	1	3	3	1	0	1	15	0
1980-1993	Gronfjorden	78.0968	13.9655	1	1	2	1	0	0	80	20
1980-1993	IsfjordRadio	78.0609	13.6256	1	3	3	1	0	0	50	50
1980-1993	Colesbukta	78.1097	15.0197	2	1	2	0	0	1	10	90
1980-1993	Longyearbyen	78.2253	15.6328	1	1	1	0	0	1	0	30
1980-1993	Grumant	78.1753	15.1053	1	2	2	0	0	0	0	30
1980-1993	Piramiden	78.6544	16.3658	3	1	1	0	0	1	0	30
1980-1993	Skotehytta	78.6997	16.6078	2	2	1	0	0	1	0	30
1980-1993	Bohemanflya	78.3820	14.6610	2	3	2	1	0	1	0	30
1980-1993	Erdmanpynten	78.2483	14.0882	2	2	2	1	0	0	80	20
1980-1993	Tryghamna	78.2217	13.8342	2	2	1	1	0	1	50	50
1980-1993	Diabasodden	78.3628	16.1353	2	2	2	0	0	0	0	20
1980-1993	Vindodden	78.3350	16.5669	2	2	2	0	0	1	0	20
2000-2016	Wilczekodden	77.0000	15.5300	1	2	2	1	0	0	31	0
2000-2016	Agskjera. Isfjorden	78.2022	12.9901	1	2	2	1	0	0	42	0
2000-2016	Hamburgbukta	79.5262	10.6939	1	3	1	1	0	0	71	0
2000-2016	Calypsobyen. Bellsund	77.5468	14.5630	1	1	2	1	0	1	8	52
2000-2016	Steinneset. Bellsund	77.7538	14.4392	1	2	2	1	0	1	46	2
2000-2016	Lewinodden. Isfjorden	78.0798	13.7203	1	3	3	1	0	0	55	5
2000-2016	Ny Alesund	78.9277	11.9312	1	1	2	1	0	1	38	30
2000-2016	Erdmanpynten	78.2483	14.0882	1	2	2	1	0	0	80	20
2000-2016	Bohemanflya	78.3820	14.6610	1	3	2	1	0	0	30	0
2000-2016	Piramiden	78.6530	16.3647	1	2	1	1	0	0	0	60
2000-2016	Gronfjorden	78.0968	13.9655	1	2	2	1	0	0	80	0
2000-2016	Linneelva	78.0797	13.7408	1	1	2	1	0	0	500	3
2000-2016	inneelva W	78.0797	13.7194	1	2	2	1	0	1	10	0
2000-2016	Isfjordradio W	78.0558	13.5808	1	2	3	1	0	0	10	0
2000-2016	Randvika	78.0719	13.6756	1	1	2	1	0	0	10	0
2000-2016	Tryghamna S	78.2070	13.8145	1	3	1	1	0	0	10	0
2000-2016	Tryghamna N	78.2501	13.7478	1	3	1	1	0	0	10	0
2000-2016	Ymerbukta S	78.2529	13.9250	1	1	1	1	0	1	10	0
2000-2016	Gronfjord NW	78.0752	14.0391	1	2	1	1	0	0	10	0
2000-2016	Linneelva E	78.0837	13.7521	1	1	3	1	0	1	10	0
2000-2016	Gronfjord SW	77.9994	14.1819	1	2	2	1	0	0	10	0
2000-2016	Gronfjord S	77.9642	14.2544	1	2	1	1	0	0	10	0
2000-2016	Gronfjord E	78.0035	14.2911	1	2	3	1	0	0	10	0
2000-2016	IsfjordRadio SW	78.0331	13.6105	1	3	3	1	0	0	10	0
2000-2016	IsfjordRadio SW1	78.0534	13.5763	1	3	3	1	0	0	10	0
2000-2016	IsfjordRadio	78.0609	13.6256	1	3	3	1	0	0	10	0
2000-2016	Longyearbyen.	78.2253	15.6328	1	1	1	1	0	1	0	30
2000-2016	Fuglehuken Fyrr (FF)	78.8964	10.4667	1	2	3	1	0	0	7	4
2000-2016	E.Coast 0.5 km from FF	78.8987	10.5056	1	2	3	1	0	0	10	28
2000-2016	Carmichelpynten	78.8894	10.5720	1	2	3	1	0	0	29	8
2000-2016	E.Coast 3km from FF	78.8868	10.6608	1	2	2	1	0	0	38	5
2000-2016	E.coast 4.5 km from FF	78.8818	10.7355	1	2	2	1	0	0	20	0
2000-2016	E. Coast 6km. Aberdeenflya	78.8754	10.7889	1	2	2	1	0	0	24	0
2000-2016	W Coast 400m from Lighthouse	78.8897	10.4682	1	2	3	1	0	0	6	6
2000-2016	Fuglehuken Fyrr	78.8972	10.4652	1	2	3	1	0	0	9	2
2000-2016	E.Coast 2 km from FF	78.8894	10.5720	1	2	3	1	0	0	18	2
2000-2016	Ymerbukta	78.3019	13.9481	1	2	2	1	0	1	1	35
2000-2016	Ny Alesund harbor	78.9300	11.8723	1	1	2	1	0	0	9	29
2000-2016	Ny Alesund beach	78.9286	11.9341	1	1	2	1	0	0	15	10
2000-2016	Fuglefjelet - Isfjorden	78.1961	15.1844	1	1	2	1	0	0	3	28
2000-2016	Bohemannesset - Isfjorden	78.3819	14.7533	1	2	2	1	0	0	3	0
2000-2016	Russekjella	78.0800	13.7200	1	2	2	1	0	0	265	0
2000-2016	Kapp Linne	78.0600	13.5800	1	1	3	1	0	0	40	0
2000-2016	Bohemanflya	78.3800	14.6600	1	2	2	1	0	0	69	0
2000-2016	W Bohemannest	78.3800	14.6600	1	2	2	1	0	0	675	0
2000-2016	Brimerpyten	78.5500	16.2600	1	2	2	1	0	0	0	29
2000-2016	Festningodden	78.1000	13.9700	1	2	3	1	0	0	42	0
2000-2016	Russekjella	78.0800	13.7400	1	2	2	1	0	0	23	0