Citation:

s00300-011-0998-x

Name: (Table 1) Abundance of unicellular eukaryotes in ice cores collected during the July 2008 CCGS Amundsen cruise in Darnley Bay
Creator: Christopher John Mundy
Published: 2011
License: https://creativecommons.org/licenses/by/3.0/

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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.

Project(s):

International Polar Year (2007-2008) (IPY)

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 * Method/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):

#	Name	Short Name	Unit	Principal Investigator	Comment
1	Location	Location		Mundy, Christopher John
2	DATE/TIME	Date/Time			Geocode
3	Sample comment	Sample comment		Mundy, Christopher John
4	Diatoms	Diatoms	#/l	Mundy, Christopher John	Bacillariophyta total
5	Diatoms	Diatoms	#/l	Mundy, Christopher John	Coscinodiscophyceae total
6	Arcocellulus cornucervis	A. cornucervis	#/l	Mundy, Christopher John
7	Attheya septentrionalis	A. septentrionalis	#/l	Mundy, Christopher John
8	Attheya cf. septentrionalis	A. cf. septentrionalis	#/l	Mundy, Christopher John
9	Chaetoceros cf. convolutus	C. cf. convolutus	#/l	Mundy, Christopher John	forma trisetosa
10	Chaetoceros cf. minimus	C. cf. minimus	#/l	Mundy, Christopher John
11	Chaetoceros neogracile	C. neogracile	#/l	Mundy, Christopher John
12	Chaetoceros similis	C. similis	#/l	Mundy, Christopher John
13	Chaetoceros simplex	C. simplex	#/l	Mundy, Christopher John
14	Chaetoceros socialis	C. socialis	#/l	Mundy, Christopher John	cells
15	Chaetoceros socialis	C. socialis	#/l	Mundy, Christopher John	spores
16	Chaetoceros tenuissimus	C. tenuissimus	#/l	Mundy, Christopher John
17	Chaetoceros vistulae	C. vistulae	#/l	Mundy, Christopher John
18	Chaetoceros wighamii	C. wighamii	#/l	Mundy, Christopher John
19	Chaetoceros sp.	Chaetoceros sp.	#/l	Mundy, Christopher John	sp. 1
20	Chaetoceros sp.	Chaetoceros sp.	#/l	Mundy, Christopher John	sp. 2
21	Chaetoceros spp.	Chaetoceros spp.	#/l	Mundy, Christopher John	<=5 µm
22	Chaetoceros spp.	Chaetoceros spp.	#/l	Mundy, Christopher John	6-10 µm
23	Chaetoceros spp.	Chaetoceros spp.	#/l	Mundy, Christopher John	>=11 µm
24	Chaetoceros spp.	Chaetoceros spp.	#/l	Mundy, Christopher John	hypnospores
25	Eucampia groenlandica	E. groenlandica	#/l	Mundy, Christopher John
26	Thalassiosira nordenskioeldii	T. nordenskioeldii	#/l	Mundy, Christopher John
27	Thalassiosira sp.	Thalassiosira sp.	#/l	Mundy, Christopher John	sp. 1
28	Thalassiosira spp.	Thalassiosira spp.	#/l	Mundy, Christopher John	10-20 µm
29	Thalassiosira spp.	Thalassiosira spp.	#/l	Mundy, Christopher John	21-50 µm
30	Diatoms	Diatoms	#/l	Mundy, Christopher John	Fragilariophyceae total
31	Synedropsis hyperborea	S. hyperborea	#/l	Mundy, Christopher John
32	Diatoms	Diatoms	#/l	Mundy, Christopher John	Bacillariophyceae total
33	Cylindrotheca closterium	C. closterium	#/l	Mundy, Christopher John
34	Ephemera planamembranacea	E. planamembranacea	#/l	Mundy, Christopher John
35	Fragilariopsis cylindrus	F. cylindrus	#/l	Mundy, Christopher John
36	Fragilariopsis oceanica	F. oceanica	#/l	Mundy, Christopher John
37	Fragilariopsis spp.	Fragilariopsis spp.	#/l	Mundy, Christopher John	10-20 µm
38	Gyrosigma concilians	G. concilians	#/l	Mundy, Christopher John
39	Navicula gelida	N. gelida	#/l	Mundy, Christopher John
40	Navicula gelida var. radissonii	N. gelida var. radissonii	#/l	Mundy, Christopher John
41	Navicula pagophila var. manitounukensis	N. pagophila var. manitounukensis	#/l	Mundy, Christopher John
42	Navicula pelagica	N. pelagica	#/l	Mundy, Christopher John
43	Navicula transitans	N. transitans	#/l	Mundy, Christopher John
44	Navicula transitans var. derasa	N. transitans var. derasa	#/l	Mundy, Christopher John
45	Navicula spp.	Navicula spp.	#/l	Mundy, Christopher John	20-50 µm
46	Nitzschia frigida	N. frigida	#/l	Mundy, Christopher John
47	Nitzschia promare	N. promare	#/l	Mundy, Christopher John
48	Nitzschia spp.	Nitzschia spp.	#/l	Mundy, Christopher John	20-50 µm
49	Nitzschia spp.	Nitzschia spp.	#/l	Mundy, Christopher John	>50 µm
50	Pinnularia quadratarea var. minor	P. quadratarea var. minor	#/l	Mundy, Christopher John
51	Pseudogomphonema arcticum	P. arcticum	#/l	Mundy, Christopher John
52	Pseudo-nitzschia cf. pseudodelicatissima	P-n cf. pseudodelicatissima	#/l	Mundy, Christopher John
53	Stauroneis radissonii	S. radissonii	#/l	Mundy, Christopher John
54	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	Pennate sp. 1
55	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	Pennate sp. 2
56	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	Pennate sp. 3
57	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	Pennate sp. 4
58	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	Pennate sp. 6
59	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	<=10 µm
60	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	11-20 µm
61	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	21-50 µm
62	Diatoms, pennales indeterminata	Diatom pen indet	#/l	Mundy, Christopher John	>50 µm
63	Dinoflagellates	Dinofl	#/l	Mundy, Christopher John	Dinophyceae total
64	Amphidinium spp.	Amphidinium spp.	#/l	Mundy, Christopher John
65	Gymnodinium sp.	Gymnodinium sp.	#/l	Mundy, Christopher John	sp. 5
66	Gyrodinium cf. resplendens	G. cf. resplendens	#/l	Mundy, Christopher John
67	Gymnodinium spp.	Gymnodinium spp.	#/l	Mundy, Christopher John	10-20 µm; including Gyrodinium spp.
68	Gymnodinium spp.	Gymnodinium spp.	#/l	Mundy, Christopher John	21-50 µm; including Gyrodinium spp.
69	Heterocapsa arctica	H. arctica	#/l	Mundy, Christopher John
70	Heterocapsa cf. niei	H. cf. niei	#/l	Mundy, Christopher John
71	Heterocapsa sp.	Heterocapsa sp.	#/l	Mundy, Christopher John	sp. 2
72	Polarella glacialis	P. glacialis	#/l	Mundy, Christopher John	cyst
73	Protoperidinium bipes	P. bipes	#/l	Mundy, Christopher John
74	Dinoflagellate indeterminata	Dinofl indet	#/l	Mundy, Christopher John	10-20 µm, Dinophyceae spp.
75	Dinoflagellate indeterminata	Dinofl indet	#/l	Mundy, Christopher John	21-50 µm, Dinophyceae spp.
76	Dinoflagellate indeterminata	Dinofl indet	#/l	Mundy, Christopher John	>50 µm, Dinophyceae cyst
77	Chlorophyceae	Chlorophyceae	#/l	Mundy, Christopher John	total
78	Polytoma spp.	Polytoma spp.	#/l	Mundy, Christopher John
79	Chlorophyceae indeterminata	Chlorophyceae indet	#/l	Mundy, Christopher John	11-20 µm
80	Chrysophyceae	Chrysophyceae	#/l	Mundy, Christopher John	total
81	Dinobryon balticum	D. balticum	#/l	Mundy, Christopher John
82	Dinobryon faculiferum	D. faculiferum	#/l	Mundy, Christopher John
83	Dinobryon spp.	Dinobryon spp.	#/l	Mundy, Christopher John
84	Chrysophyceae indeterminata	Chrysophyceae indet	#/l	Mundy, Christopher John	<=5 µm
85	Chrysophyceae indeterminata	Chrysophyceae indet	#/l	Mundy, Christopher John	6-10 µm
86	Chrysophyceae indeterminata	Chrysophyceae indet	#/l	Mundy, Christopher John	>10 µm
87	Chrysophyceae cysts	Chrysophyceae cysts	#/l	Mundy, Christopher John
88	Dictyochophyceae	Dictyochophyceae	#/l	Mundy, Christopher John	total
89	Pseudopedinella spp.	Pseudopedinella spp.	#/l	Mundy, Christopher John	<=5 µm
90	Pseudopedinella spp.	Pseudopedinella spp.	#/l	Mundy, Christopher John	6-10 µm
91	Cryptophyceae	Cryptophyceae	#/l	Mundy, Christopher John	total
92	Plagioselmis prolonga var. nordica	P. prolonga var. nordica	#/l	Mundy, Christopher John
93	Cryptophyceae indeterminata	Cryptophyceae indet	#/l	Mundy, Christopher John	<=5 µm
94	Cryptophyceae indeterminata	Cryptophyceae indet	#/l	Mundy, Christopher John	6-10 µm
95	Cryptophyceae indeterminata	Cryptophyceae indet	#/l	Mundy, Christopher John	>10 µm
96	Euglenophyceae	Euglenophyceae	#/l	Mundy, Christopher John	total
97	Euglenophyceae indeterminata	Euglenophyceae indet	#/l	Mundy, Christopher John	10-20 µm
98	Euglenophyceae indeterminata	Euglenophyceae indet	#/l	Mundy, Christopher John	>20 µm
99	Prasinophyceae	Prasinophyceae	#/l	Mundy, Christopher John	total
100	Dolichomastix nummulifera	D. nummulifera	#/l	Mundy, Christopher John
101	Pyramimonas disomata	P. disomata	#/l	Mundy, Christopher John
102	Pyramimonas sp.	Pyramimonas sp.	#/l	Mundy, Christopher John	sp. 1
103	Pyramimonas sp.	Pyramimonas sp.	#/l	Mundy, Christopher John	sp. 2
104	Pyramimonas spp.	Pyramimonas spp.	#/l	Mundy, Christopher John	<=5 µm
105	Pyramimonas spp.	Pyramimonas spp.	#/l	Mundy, Christopher John	6-10 µm
106	Pyramimonas spp.	Pyramimonas spp.	#/l	Mundy, Christopher John	>10 µm
107	Prasinophyceae indeterminata	Prasinophyceae indet	#/l	Mundy, Christopher John	6-10 µm
108	Prymnesiophyceae	Prymnesio	#/l	Mundy, Christopher John
109	Chrysochromulina spp.	Chrysochromulina spp.	#/l	Mundy, Christopher John	<=5 µm
110	Chrysochromulina spp.	Chrysochromulina spp.	#/l	Mundy, Christopher John	6-10 µm
111	Chrysochromulina spp.	Chrysochromulina spp.	#/l	Mundy, Christopher John	>10 µm
112	Dicrateria spp.	Dicrateria spp.	#/l	Mundy, Christopher John	including Imantonia spp.
113	Prymnesiophyceae indeterminata	Prymnesiophyceae indet	#/l	Mundy, Christopher John	sp. 1
114	Prymnesiophyceae indeterminata	Prymnesiophyceae indet	#/l	Mundy, Christopher John	<=5 µm
115	Prymnesiophyceae indeterminata	Prymnesiophyceae indet	#/l	Mundy, Christopher John	6-10 µm
116	Prymnesiophyceae indeterminata	Prymnesiophyceae indet	#/l	Mundy, Christopher John	>10 µm
117	Flagellates indeterminata	Flag indet	#/l	Mundy, Christopher John	total
118	Flagellates indeterminata	Flag indet	#/l	Mundy, Christopher John	sp. 2
119	Flagellates indeterminata	Flag indet	#/l	Mundy, Christopher John	sp. 3
120	Flagellates indeterminata	Flag indet	#/l	Mundy, Christopher John	<=5 µm
121	Flagellates indeterminata	Flag indet	#/l	Mundy, Christopher John	6-10 µm
122	Flagellates indeterminata	Flag indet	#/l	Mundy, Christopher John	11-20 µm
123	Flagellates indeterminata	Flag indet	#/l	Mundy, Christopher John	>20 µm
124	Raphidophyceae	Raphidophyceae	#/l	Mundy, Christopher John	total
125	Chattonella spp.	Chattonella spp.	#/l	Mundy, Christopher John
126	Raphidophyceae indeterminata	Raphidophyceae indet	#/l	Mundy, Christopher John	>=10 µm
127	Flagellates, heterotrophic	HFL	#/l	Mundy, Christopher John	total
128	Bodo cf. curvifilus	B. cf. curvifilus	#/l	Mundy, Christopher John
129	Bodo spp.	Bodo spp.	#/l	Mundy, Christopher John
130	Leucocryptos marina	L. marina	#/l	Mundy, Christopher John
131	Notosolenus sp.	Notosolenus sp.	#/l	Mundy, Christopher John	sensu Berard-Therriault et al. (1999)
132	Quadricilia rotundata	Q. rotundata	#/l	Mundy, Christopher John
133	Rhynchomonas nasuta	R. nasuta	#/l	Mundy, Christopher John
134	Telonema subtile	T. subtile	#/l	Mundy, Christopher John
135	Telonema sp.	Telonema sp.	#/l	Mundy, Christopher John	sp. 1
136	Vanella cf. simplex	V. cf. simplex	#/l	Mundy, Christopher John
137	Flagellates indeterminata	Flag indet	#/l	Mundy, Christopher John	sp. A
138	Flagellates, heterotrophic	HFL	#/l	Mundy, Christopher John	6-10 µm
139	Flagellates, heterotrophic	HFL	#/l	Mundy, Christopher John	>10 µm
140	Choanoflagellida	Choanoflagellida	#/l	Mundy, Christopher John	total
141	Bicosta spp.	Bicosta spp.	#/l	Mundy, Christopher John
142	Calliacantha longicaudata	C. longicaudata	#/l	Mundy, Christopher John
143	Calliacantha natans	C. natans	#/l	Mundy, Christopher John
144	Monosiga sp.	Monosiga sp.	#/l	Mundy, Christopher John	sensu Berard-Therriault et al. (1999)
145	Parvicorbicula socialis	P. socialis	#/l	Mundy, Christopher John
146	Choanoflagellatea indeterminata	Choanoflag indet	#/l	Mundy, Christopher John	<=5 µm
147	Choanoflagellatea indeterminata	Choanoflag indet	#/l	Mundy, Christopher John	6-10 µm
148	Choanoflagellatea indeterminata	Choanoflag indet	#/l	Mundy, Christopher John	>10 µm
149	Ciliates	Ciliates	#/l	Mundy, Christopher John	total
150	Lohmanniella oviformis	L. oviformis	#/l	Mundy, Christopher John
151	Strombidium spp.	Strombidium spp.	#/l	Mundy, Christopher John	21-50 µm
152	Ciliates indeterminata	Ciliates indet	#/l	Mundy, Christopher John	sp. 3
153	Ciliates indeterminata	Ciliates indet	#/l	Mundy, Christopher John	11-20 µm
154	Ciliates indeterminata	Ciliates indet	#/l	Mundy, Christopher John	21-50 µm
155	Ciliates indeterminata	Ciliates indet	#/l	Mundy, Christopher John	>50 µm
156	Indeterminable: unknown	Ind.unkn	#/l	Mundy, Christopher John	all unidentified auto- and heterotrophic cells
157	Indeterminable: unknown	Ind.unkn	#/l	Mundy, Christopher John	cyst sp. 1 (17 µm)
158	Indeterminable: unknown	Ind.unkn	#/l	Mundy, Christopher John	cysts 10-20 µm
159	Indeterminable: unknown	Ind.unkn	#/l	Mundy, Christopher John	cysts 21-50 µm
160	Indeterminable: unknown	Ind.unkn	#/l	Mundy, Christopher John	cell sp. 1 (3-5 µm)
161	Indeterminable: unknown	Ind.unkn	#/l	Mundy, Christopher John	cells <=5 µm
162	Indeterminable: unknown	Ind.unkn	#/l	Mundy, Christopher John	cells 6-10 µm
163	Indeterminable: unknown	Ind.unkn	#/l	Mundy, Christopher John	cells 11-20 µm
164	Number of species	Spec No	#	Mundy, Christopher John
165	Number of taxa	Taxa	#	Mundy, Christopher John

License:

Creative Commons Attribution 3.0 Unported (CC-BY-3.0)

Size:

818 data points

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