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Ehrlich, André; Wendisch, Manfred; Lüpkes, Christof; Crewell, Susanne; Mech, Mario (2011): (Table 1) Abundance of unicellular eukaryotes in ice cores collected during the July 2008 CCGS Amundsen cruise in Darnley Bay. PANGAEA, https://doi.org/10.1594/PANGAEA.817323, Supplement to: Mundy, Christopher John; Gosselin, Michel; Ehn, Jens K; Belzile, Claude; Poulin, Michel; Alou, Eva; Roy, Suzanne; Hop, Haakon; Lessard, Sylvie; Papakyriakou, Tim N; Barber, David G; Stewart, Jeremy (2011): Characteristics of two distinct high-light acclimated algal communities during advanced stages of sea ice melt. Polar Biology, 34(12), 1869-1886, https://doi.org/10.1007/s00300-011-0998-x

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Abstract:
Influence of methanogenic populations in Holocene lacustrine sediments revealed by clone libraries and fatty acid biogeochemistry.Biological characteristics of ice-associated algal communities were studied in Darnley Bay (western Canadian Arctic) during a 2-week period in July 2008 when the landfast ice cover had reached an advanced stage of melt. We found two distinct and separate algal communities: (1) an interior ice community confined to brine channel networks beneath white ice covers; and (2) an ice melt water community in the brackish waters of both surface melt ponds and the layer immediately below the ice cover. Both communities reached maximum chlorophyll a concentrations of about 2.5 mg/m**3, but with diatoms dominating the interior ice while flagellates dominated the melt water community. The microflora of each community was diverse, containing both unique and shared algal species, the latter suggesting an initial seeding of the ice melt water by the bottom ice community. Absorption characteristics of the algae indicated the presence of mycosporine-like amino acids (MAAs) and carotenoid pigments as a photoprotective strategy against being confined to high-light near-surface layers. Although likely not contributing substantially to total annual primary production, these ice-associated communities may play an important ecological role in the Arctic marine ecosystem, supplying an accessible and stable food source to higher trophic levels during the period of ice melt.
Coverage:
Median Latitude: 69.820000 * Median Longitude: -123.641665 * South-bound Latitude: 69.815000 * West-bound Longitude: -123.650000 * North-bound Latitude: 69.825000 * East-bound Longitude: -123.633330
Date/Time Start: 2008-06-08T00:00:00 * Date/Time End: 2008-06-18T00:00:00
Event(s):
Amundsen_Gulf08 * Latitude Start: 69.825000 * Longitude Start: -123.633330 * Latitude End: 69.815000 * Longitude End: -123.650000 * Date/Time Start: 2008-06-08T00:00:00 * Date/Time End: 2008-06-18T00:00:00 * Location: Amundsen Gulf, Canada * Device: Sea ice corer (SEAICEC) * Comment: CCGS Amundsen cruise
Comment:
Data extracted in the frame of a joint ICSTI/PANGAEA IPY effort, see http://doi.pangaea.de/10.1594/PANGAEA.150150
Parameter(s):
#NameShort NameUnitPrincipal InvestigatorMethodComment
1LocationLocationMundy, Christopher John
2DATE/TIMEDate/TimeGeocode
3Sample commentSample commentMundy, Christopher John
4DiatomsDiatoms#/lMundy, Christopher JohnBacillariophyta total
5DiatomsDiatoms#/lMundy, Christopher JohnCoscinodiscophyceae total
6Arcocellulus cornucervisA. cornucervis#/lMundy, Christopher John
7Attheya septentrionalisA. septentrionalis#/lMundy, Christopher John
8Attheya cf. septentrionalisA. cf. septentrionalis#/lMundy, Christopher John
9Chaetoceros cf. convolutusC. cf. convolutus#/lMundy, Christopher Johnforma trisetosa
10Chaetoceros cf. minimusC. cf. minimus#/lMundy, Christopher John
11Chaetoceros neogracileC. neogracile#/lMundy, Christopher John
12Chaetoceros similisC. similis#/lMundy, Christopher John
13Chaetoceros simplexC. simplex#/lMundy, Christopher John
14Chaetoceros socialisC. socialis#/lMundy, Christopher Johncells
15Chaetoceros socialisC. socialis#/lMundy, Christopher Johnspores
16Chaetoceros tenuissimusC. tenuissimus#/lMundy, Christopher John
17Chaetoceros vistulaeC. vistulae#/lMundy, Christopher John
18Chaetoceros wighamiiC. wighamii#/lMundy, Christopher John
19Chaetoceros sp.Chaetoceros sp.#/lMundy, Christopher Johnsp. 1
20Chaetoceros sp.Chaetoceros sp.#/lMundy, Christopher Johnsp. 2
21Chaetoceros spp.Chaetoceros spp.#/lMundy, Christopher John<=5 µm
22Chaetoceros spp.Chaetoceros spp.#/lMundy, Christopher John6-10 µm
23Chaetoceros spp.Chaetoceros spp.#/lMundy, Christopher John>=11 µm
24Chaetoceros spp.Chaetoceros spp.#/lMundy, Christopher Johnhypnospores
25Eucampia groenlandicaE. groenlandica#/lMundy, Christopher John
26Thalassiosira nordenskioeldiiT. nordenskioeldii#/lMundy, Christopher John
27Thalassiosira sp.Thalassiosira sp.#/lMundy, Christopher Johnsp. 1
28Thalassiosira spp.Thalassiosira spp.#/lMundy, Christopher John10-20 µm
29Thalassiosira spp.Thalassiosira spp.#/lMundy, Christopher John21-50 µm
30DiatomsDiatoms#/lMundy, Christopher JohnFragilariophyceae total
31Synedropsis hyperboreaS. hyperborea#/lMundy, Christopher John
32DiatomsDiatoms#/lMundy, Christopher JohnBacillariophyceae total
33Cylindrotheca closteriumC. closterium#/lMundy, Christopher John
34Ephemera planamembranaceaE. planamembranacea#/lMundy, Christopher John
35Fragilariopsis cylindrusF. cylindrus#/lMundy, Christopher John
36Fragilariopsis oceanicaF. oceanica#/lMundy, Christopher John
37Fragilariopsis spp.Fragilariopsis spp.#/lMundy, Christopher John10-20 µm
38Gyrosigma conciliansG. concilians#/lMundy, Christopher John
39Navicula gelidaN. gelida#/lMundy, Christopher John
40Navicula gelida var. radissoniiN. gelida var. radissonii#/lMundy, Christopher John
41Navicula pagophila var. manitounukensisN. pagophila var. manitounukensis#/lMundy, Christopher John
42Navicula pelagicaN. pelagica#/lMundy, Christopher John
43Navicula transitansN. transitans#/lMundy, Christopher John
44Navicula transitans var. derasaN. transitans var. derasa#/lMundy, Christopher John
45Navicula spp.Navicula spp.#/lMundy, Christopher John20-50 µm
46Nitzschia frigidaN. frigida#/lMundy, Christopher John
47Nitzschia promareN. promare#/lMundy, Christopher John
48Nitzschia spp.Nitzschia spp.#/lMundy, Christopher John20-50 µm
49Nitzschia spp.Nitzschia spp.#/lMundy, Christopher John>50 µm
50Pinnularia quadratarea var. minorP. quadratarea var. minor#/lMundy, Christopher John
51Pseudogomphonema arcticumP. arcticum#/lMundy, Christopher John
52Pseudo-nitzschia cf. pseudodelicatissimaP-n cf. pseudodelicatissima#/lMundy, Christopher John
53Stauroneis radissoniiS. radissonii#/lMundy, Christopher John
54Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher JohnPennate sp. 1
55Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher JohnPennate sp. 2
56Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher JohnPennate sp. 3
57Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher JohnPennate sp. 4
58Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher JohnPennate sp. 6
59Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher John<=10 µm
60Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher John11-20 µm
61Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher John21-50 µm
62Diatoms, pennales indeterminataDiatom pen indet#/lMundy, Christopher John>50 µm
63DinoflagellatesDinofl#/lMundy, Christopher JohnDinophyceae total
64Amphidinium spp.Amphidinium spp.#/lMundy, Christopher John
65Gymnodinium sp.Gymnodinium sp.#/lMundy, Christopher Johnsp. 5
66Gyrodinium cf. resplendensG. cf. resplendens#/lMundy, Christopher John
67Gymnodinium spp.Gymnodinium spp.#/lMundy, Christopher John10-20 µm; including Gyrodinium spp.
68Gymnodinium spp.Gymnodinium spp.#/lMundy, Christopher John21-50 µm; including Gyrodinium spp.
69Heterocapsa arcticaH. arctica#/lMundy, Christopher John
70Heterocapsa cf. nieiH. cf. niei#/lMundy, Christopher John
71Heterocapsa sp.Heterocapsa sp.#/lMundy, Christopher Johnsp. 2
72Polarella glacialisP. glacialis#/lMundy, Christopher Johncyst
73Protoperidinium bipesP. bipes#/lMundy, Christopher John
74Dinoflagellate indeterminataDinofl indet#/lMundy, Christopher John10-20 µm, Dinophyceae spp.
75Dinoflagellate indeterminataDinofl indet#/lMundy, Christopher John21-50 µm, Dinophyceae spp.
76Dinoflagellate indeterminataDinofl indet#/lMundy, Christopher John>50 µm, Dinophyceae cyst
77ChlorophyceaeChlorophyceae#/lMundy, Christopher Johntotal
78Polytoma spp.Polytoma spp.#/lMundy, Christopher John
79Chlorophyceae indeterminataChlorophyceae indet#/lMundy, Christopher John11-20 µm
80ChrysophyceaeChrysophyceae#/lMundy, Christopher Johntotal
81Dinobryon balticumD. balticum#/lMundy, Christopher John
82Dinobryon faculiferumD. faculiferum#/lMundy, Christopher John
83Dinobryon spp.Dinobryon spp.#/lMundy, Christopher John
84Chrysophyceae indeterminataChrysophyceae indet#/lMundy, Christopher John<=5 µm
85Chrysophyceae indeterminataChrysophyceae indet#/lMundy, Christopher John6-10 µm
86Chrysophyceae indeterminataChrysophyceae indet#/lMundy, Christopher John>10 µm
87Chrysophyceae cystsChrysoph cysts#/lMundy, Christopher John
88DictyochophyceaeDictyochophyceae#/lMundy, Christopher Johntotal
89Pseudopedinella spp.Pseudopedinella spp.#/lMundy, Christopher John<=5 µm
90Pseudopedinella spp.Pseudopedinella spp.#/lMundy, Christopher John6-10 µm
91CryptophyceaeCryptophyceae#/lMundy, Christopher Johntotal
92Plagioselmis prolonga var. nordicaP. prolonga var. nordica#/lMundy, Christopher John
93Cryptophyceae indeterminataCryptophyceae indet#/lMundy, Christopher John<=5 µm
94Cryptophyceae indeterminataCryptophyceae indet#/lMundy, Christopher John6-10 µm
95Cryptophyceae indeterminataCryptophyceae indet#/lMundy, Christopher John>10 µm
96EuglenophyceaeEuglenophyceae#/lMundy, Christopher Johntotal
97Euglenophyceae indeterminataEuglenophyceae indet#/lMundy, Christopher John10-20 µm
98Euglenophyceae indeterminataEuglenophyceae indet#/lMundy, Christopher John>20 µm
99PrasinophyceaePrasinophyceae#/lMundy, Christopher Johntotal
100Dolichomastix nummuliferaD. nummulifera#/lMundy, Christopher John
101Pyramimonas disomataP. disomata#/lMundy, Christopher John
102Pyramimonas sp.Pyramimonas sp.#/lMundy, Christopher Johnsp. 1
103Pyramimonas sp.Pyramimonas sp.#/lMundy, Christopher Johnsp. 2
104Pyramimonas spp.Pyramimonas spp.#/lMundy, Christopher John<=5 µm
105Pyramimonas spp.Pyramimonas spp.#/lMundy, Christopher John6-10 µm
106Pyramimonas spp.Pyramimonas spp.#/lMundy, Christopher John>10 µm
107Prasinophyceae indeterminataPrasinophyceae indet#/lMundy, Christopher John6-10 µm
108PrymnesiophyceaePrymnesio#/lMundy, Christopher John
109Chrysochromulina spp.Chrysochromulina spp.#/lMundy, Christopher John<=5 µm
110Chrysochromulina spp.Chrysochromulina spp.#/lMundy, Christopher John6-10 µm
111Chrysochromulina spp.Chrysochromulina spp.#/lMundy, Christopher John>10 µm
112Dicrateria spp.Dicrateria spp.#/lMundy, Christopher Johnincluding Imantonia spp.
113Prymnesiophyceae indeterminataPrymnesiophyceae indet#/lMundy, Christopher Johnsp. 1
114Prymnesiophyceae indeterminataPrymnesiophyceae indet#/lMundy, Christopher John<=5 µm
115Prymnesiophyceae indeterminataPrymnesiophyceae indet#/lMundy, Christopher John6-10 µm
116Prymnesiophyceae indeterminataPrymnesiophyceae indet#/lMundy, Christopher John>10 µm
117Flagellates indeterminataFlag indet#/lMundy, Christopher Johntotal
118Flagellates indeterminataFlag indet#/lMundy, Christopher Johnsp. 2
119Flagellates indeterminataFlag indet#/lMundy, Christopher Johnsp. 3
120Flagellates indeterminataFlag indet#/lMundy, Christopher John<=5 µm
121Flagellates indeterminataFlag indet#/lMundy, Christopher John6-10 µm
122Flagellates indeterminataFlag indet#/lMundy, Christopher John11-20 µm
123Flagellates indeterminataFlag indet#/lMundy, Christopher John>20 µm
124RaphidophyceaeRaphidophyceae#/lMundy, Christopher Johntotal
125Chattonella spp.Chattonella spp.#/lMundy, Christopher John
126Raphidophyceae indeterminataRaphidophyceae indet#/lMundy, Christopher John>=10 µm
127Flagellates, heterotrophicHFL#/lMundy, Christopher Johntotal
128Bodo cf. curvifilusB. cf. curvifilus#/lMundy, Christopher John
129Bodo spp.Bodo spp.#/lMundy, Christopher John
130Leucocryptos marinaL. marina#/lMundy, Christopher John
131Notosolenus sp.Notosolenus sp.#/lMundy, Christopher Johnsensu Berard-Therriault et al. (1999)
132Quadricilia rotundataQ. rotundata#/lMundy, Christopher John
133Rhynchomonas nasutaR. nasuta#/lMundy, Christopher John
134Telonema subtileT. subtile#/lMundy, Christopher John
135Telonema sp.Telonema sp.#/lMundy, Christopher Johnsp. 1
136Vanella cf. simplexV. cf. simplex#/lMundy, Christopher John
137Flagellates indeterminataFlag indet#/lMundy, Christopher Johnsp. A
138Flagellates, heterotrophicHFL#/lMundy, Christopher John6-10 µm
139Flagellates, heterotrophicHFL#/lMundy, Christopher John>10 µm
140ChoanoflagellidaChoanoflagellida#/lMundy, Christopher Johntotal
141Bicosta spp.Bicosta spp.#/lMundy, Christopher John
142Calliacantha longicaudataC. longicaudata#/lMundy, Christopher John
143Calliacantha natansC. natans#/lMundy, Christopher John
144Monosiga sp.Monosiga sp.#/lMundy, Christopher Johnsensu Berard-Therriault et al. (1999)
145Parvicorbicula socialisP. socialis#/lMundy, Christopher John
146Choanoflagellatea indeterminataChoanoflag indet#/lMundy, Christopher John<=5 µm
147Choanoflagellatea indeterminataChoanoflag indet#/lMundy, Christopher John6-10 µm
148Choanoflagellatea indeterminataChoanoflag indet#/lMundy, Christopher John>10 µm
149CiliatesCiliates#/lMundy, Christopher Johntotal
150Lohmanniella oviformisL. oviformis#/lMundy, Christopher John
151Strombidium spp.Strombidium spp.#/lMundy, Christopher John21-50 µm
152Ciliates indeterminataCiliates indet#/lMundy, Christopher Johnsp. 3
153Ciliates indeterminataCiliates indet#/lMundy, Christopher John11-20 µm
154Ciliates indeterminataCiliates indet#/lMundy, Christopher John21-50 µm
155Ciliates indeterminataCiliates indet#/lMundy, Christopher John>50 µm
156Indeterminable: unknownInd.unkn#/lMundy, Christopher Johnall unidentified auto- and heterotrophic cells
157Indeterminable: unknownInd.unkn#/lMundy, Christopher Johncyst sp. 1 (17 µm)
158Indeterminable: unknownInd.unkn#/lMundy, Christopher Johncysts 10-20 µm
159Indeterminable: unknownInd.unkn#/lMundy, Christopher Johncysts 21-50 µm
160Indeterminable: unknownInd.unkn#/lMundy, Christopher Johncell sp. 1 (3-5 µm)
161Indeterminable: unknownInd.unkn#/lMundy, Christopher Johncells <=5 µm
162Indeterminable: unknownInd.unkn#/lMundy, Christopher Johncells 6-10 µm
163Indeterminable: unknownInd.unkn#/lMundy, Christopher Johncells 11-20 µm
164Number of speciesSpec No#Mundy, Christopher John
165Number of taxaTaxa#Mundy, Christopher John
Size:
818 data points

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