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"", "partNumber": "", "partTitle": "", "pages": "", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "", "DOI": "", "citationKey": "", "url": "", "accessDate": "", "PMID": "", "PMCID": "", "ISSN": "", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2016-08-15T22:20:52Z", "dateModified": "2016-08-15T22:21:14Z" } }, { "key": "HIV2MUND", "version": 55, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/HIV2MUND", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/HIV2MUND", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", 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"2016-08-15T21:37:54Z" } }, { "key": "TH2PHEW7", "version": 54, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/TH2PHEW7", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/TH2PHEW7", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } }, "creatorSummary": "Ekstrøm", "parsedDate": "2016-06-21", "numChildren": 0 }, "data": { "key": "TH2PHEW7", "version": 54, "itemType": "computerProgram", "title": "MESS: Miscellaneous Esoteric Statistical Scripts", "creators": [ { "creatorType": "programmer", "firstName": "Claus", "lastName": "Ekstrøm" } ], "abstractNote": "", "seriesTitle": "", "versionNumber": "R package version 0.4-3", "date": "June 21, 2016", "system": "R", "company": "", "place": "", "programmingLanguage": "", "rights": "", "citationKey": "", "url": "", "accessDate": "", "DOI": "", "ISBN": "", "archive": "", "archiveLocation": "", "libraryCatalog": "", "callNumber": "", "shortTitle": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2016-08-15T21:16:31Z", "dateModified": "2016-08-15T21:29:57Z" } }, { "key": "QZF6ZAB2", "version": 52, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/QZF6ZAB2", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/QZF6ZAB2", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": 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Charles", "lastName": "Kerfoot" }, { "creatorType": "author", "firstName": "Judith W.", "lastName": "Budd" }, { "creatorType": "author", "firstName": "Sarah A.", "lastName": "Green" }, { "creatorType": "author", "firstName": "James B.", "lastName": "Cotner" }, { "creatorType": "author", "firstName": "Bopaiah A.", "lastName": "Biddanda" }, { "creatorType": "author", "firstName": "David J.", "lastName": "Schwab" }, { "creatorType": "author", "firstName": "Henry A.", "lastName": "Vanderploeg" } ], "abstractNote": "Contrary to expectations of fairly uniform and unstratified waters, sea-viewing wide field-of-view sensor (SeaWiFS) and moderate-resolution imaging spectroradiometer (MODIS) imagery revealed a spatially complex chlorophyll a pattern, termed the “doughnut,” in southern Lake Michigan during March to April. Phosphorus-rich coastal waters and sediments are entrained along gyre convergence zones and moved into deeper waters, stimulating a ring of production. Cross-lake surveys (April 2001 and April 2006) with two separate profiling instruments (vertical Seabird CTD casts, horizontal Acrobat tows) uncovered columnar patterns for Chl a, temperature, and other variables (colored dissolved organic matter, transmissivity) consistent with a spatially complex, rotating gyre structure. Optical plankton counter transects, plankton net tows, and sonar documented that the spatial heterogeneity extends to higher levels of food webs (zooplankton). The horizontal and vertical patterns suggest a previously unrecognized coupling between late-winter storm-induced gyre formation, coastal water plus sediment capture, and deep-water productivity. The pulse may explain how certain zooplankton species characteristic of the Great Lakes can successfully overwinter through what was previously perceived as a very unproductive and resource-stressful period. The magnitude of the winter pulse may be linked to climate change, as higher temperatures and more frequent winter storms suppress coastal ice formation and encourage movement of nutrient-enriched waters and sediments into deeper waters.", "publicationTitle": "Limnology and Oceanography", "publisher": "", "place": "", "date": "March 1, 2008", "volume": "53", "issue": "2", "section": "", "partNumber": "", "partTitle": "", "pages": "589-604", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Limnol. 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"extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2016-08-15T21:23:10Z", "dateModified": "2016-08-15T21:24:09Z" } }, { "key": "7Z8BX4RM", "version": 49, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/7Z8BX4RM", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/7Z8BX4RM", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } }, "creatorSummary": "Bates et al.", "parsedDate": "2015-10", "numChildren": 0 }, "data": { "key": "7Z8BX4RM", "version": 49, "itemType": "journalArticle", "title": "Fitting Linear Mixed-Effects Models Using lme4", "creators": [ { "creatorType": 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"library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/NMZ5CUST", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/NMZ5CUST", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/625981/items/UJICDQWU", "type": "application/json" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "NMZ5CUST", "version": 44, "parentItem": "UJICDQWU", "itemType": "attachment", "linkMode": "linked_url", "title": "Snapshot", "accessDate": "2016-08-15T21:19:14Z", "url": "https://www.jstatsoft.org/article/view/v067i01", "note": "", "contentType": "text/html", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:19:14Z", "dateModified": "2016-08-15T21:19:14Z" } }, { "key": "8ENUGN5D", "version": 40, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/8ENUGN5D", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/8ENUGN5D", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } }, "creatorSummary": "Benson et al.", "parsedDate": "2012-05", "numChildren": 2 }, "data": { "key": "8ENUGN5D", "version": 40, "itemType": "journalArticle", "title": "Extreme events, trends, and variability in Northern Hemisphere lake-ice phenology (1855–2005)", "creators": [ { "creatorType": "author", "firstName": "Barbara J.", "lastName": "Benson" }, { "creatorType": "author", "firstName": "John J.", "lastName": "Magnuson" }, { "creatorType": "author", "firstName": "Olaf P.", "lastName": "Jensen" }, { "creatorType": "author", "firstName": "Virginia M.", "lastName": "Card" }, { "creatorType": "author", "firstName": "Glenn", "lastName": "Hodgkins" }, { "creatorType": "author", "firstName": "Johanna", "lastName": "Korhonen" }, { "creatorType": "author", "firstName": "David M.", "lastName": "Livingstone" }, { "creatorType": "author", "firstName": "Kenton M.", "lastName": "Stewart" }, { "creatorType": "author", "firstName": "Gesa A.", "lastName": "Weyhenmeyer" }, { "creatorType": "author", "firstName": "Nick G.", "lastName": "Granin" } ], "abstractNote": "Often extreme events, more than changes in mean conditions, have the greatest impact on the environment and human well-being. Here we examine changes in the occurrence of extremes in the timing of the annual formation and disappearance of lake ice in the Northern Hemisphere. Both changes in the mean condition and in variability around the mean condition can alter the probability of extreme events. Using long-term ice phenology data covering two periods 1855–6 to 2004–5 and 1905–6 to 2004–5 for a total of 75 lakes, we examined patterns in long-term trends and variability in the context of understanding the occurrence of extreme events. We also examined patterns in trends for a 30-year subset (1975–6 to 2004–5) of the 100-year data set. Trends for ice variables in the recent 30-year period were steeper than those in the 100- and 150-year periods, and trends in the 150-year period were steeper than in the 100-year period. Ranges of rates of change (days per decade) among time periods based on linear regression were 0.3−1.6 later for freeze, 0.5−1.9 earlier for breakup, and 0.7−4.3 shorter for duration. Mostly, standard deviation did not change, or it decreased in the 150-year and 100-year periods. During the recent 50-year period, standard deviation calculated in 10-year windows increased for all ice measures. For the 150-year and 100-year periods changes in the mean ice dates rather than changes in variability most strongly influenced the significant increases in the frequency of extreme lake ice events associated with warmer conditions and decreases in the frequency of extreme events associated with cooler conditions.", "publicationTitle": "Climatic Change", "publisher": "", "place": "", "date": "May 2012", "volume": "112", "issue": "2", "section": "", "partNumber": "", "partTitle": "", "pages": "299-323", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Climatic Change", "DOI": "10.1007/s10584-011-0212-8", "citationKey": "", "url": "http://link.springer.com/article/10.1007/s10584-011-0212-8", "accessDate": "2016-08-15T21:13:33Z", "PMID": "", "PMCID": "", "ISSN": "0165-0009, 1573-1480", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "en", "libraryCatalog": "link.springer.com", "callNumber": "", "rights": "", "extra": "", "tags": [], 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"stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "NSCFWPQE", "version": 39, "parentItem": "KN7C23J6", "itemType": "attachment", "linkMode": "linked_url", "title": "Full Text PDF", "accessDate": "2016-08-15T21:12:54Z", "url": "http://onlinelibrary.wiley.com/store/10.1002/iroh.201111466/asset/233_ftp.pdf?v=1&t=irwje9ch&s=e7e701f578681c4c11a735378096db0157be1693", "note": "", "contentType": "application/pdf", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:12:54Z", "dateModified": "2016-08-15T21:12:54Z" } }, { "key": "KN7C23J6", "version": 39, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/KN7C23J6", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/KN7C23J6", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } }, "creatorSummary": "Gu", "parsedDate": "2012-06-01", "numChildren": 2 }, "data": { "key": "KN7C23J6", "version": 39, "itemType": "journalArticle", "title": "Stable isotopes as indicators for seasonally dominant nitrogen cycling processes in a subarctic lake", "creators": [ { "creatorType": "author", "firstName": "Binhe", "lastName": "Gu" } ], "abstractNote": "Nitrogen stable isotopes (δ15N) of dissolved inorganic nitrogen (DIN = NH4+ and NO3–), dissolved organic nitrogen (DON), and particulate organic nitrogen (PON) were measured in Smith Lake, Alaska to assess their usefulness as proxies for the biological nitrogen cycling processes, nutrient concentration, and lake productivity. Large seasonal variations in δ15NH4+, δ15NO3– and δ15NPON occurred in response to different processes of nitrogen transformation that dominated a specific time period of the annual production cycle. In spring, 15N depletion in all three pools was closely related to the occurrences of a N2-fixing cyanobacterial bloom (Anabaena flos-aquae). In summer, δ15NPON increased as phytoplankton community shifted to use NH4+ and decreased as a brief N2-fixing bloom (Aphanizomenon flos-aquae) occurred in August. In early and mid-winter, microbial nitrogen processes were dominated by nitrification that resulted in the largest isotope fractionation between NO3– and NH4+ in the annual cycle. This was followed by denitrification that led to the highest 15N enrichment in NO3–. A peak of NH4+ assimilation by phytoplankton along with the elevated δ15NPON and Chl a concentration occurred just before the ice break due to increased light penetration. The δ15NDON displayed little temporal and spatial variations. This suggests that the DON pool was not altered by biological transformations of nitrogen as the results of its large size and possibly refractory nature. There was a positive correlation between Chl a concentration and δ15NPON, and a negative correlation between NH4+ and δ15NPON, suggesting that δ15NPON is a useful proxy for nitrogen productivity and ammonium concentration. (© 2012 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim)", "publicationTitle": "International Review of Hydrobiology", "publisher": "", "place": "", "date": "June 1, 2012", "volume": "97", "issue": "3", "section": "", "partNumber": "", "partTitle": "", "pages": "233-243", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "International Review of Hydrobiology", "DOI": "10.1002/iroh.201111466", "citationKey": "", "url": "http://onlinelibrary.wiley.com/doi/10.1002/iroh.201111466/abstract", "accessDate": "2016-08-15T21:12:54Z", "PMID": "", "PMCID": "", "ISSN": "1522-2632", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "en", "libraryCatalog": "Wiley Online Library", "callNumber": "", "rights": "", "extra": "", "tags": [ { "tag": "Nitrification", "type": 1 }, { "tag": "cyanobacteria", "type": 1 }, { "tag": "denitrification", "type": 1 }, { "tag": "lacustrine system", "type": 1 }, { "tag": "nitrogen fixation", "type": 1 }, { "tag": "phytoplankton", "type": 1 } ], "collections": [], "relations": {}, "dateAdded": "2016-08-15T21:12:54Z", "dateModified": "2016-08-15T21:12:54Z" } }, { "key": "37ED5JNN", "version": 39, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/37ED5JNN", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/37ED5JNN", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/625981/items/KN7C23J6", "type": "application/json" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "37ED5JNN", "version": 39, "parentItem": "KN7C23J6", "itemType": "attachment", "linkMode": "linked_url", "title": "Snapshot", "accessDate": "2016-08-15T21:12:54Z", "url": "http://onlinelibrary.wiley.com/doi/10.1002/iroh.201111466/abstract", "note": "", "contentType": "text/html", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:12:54Z", "dateModified": "2016-08-15T21:12:54Z" } }, { "key": "X6VN2CU2", "version": 38, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/X6VN2CU2", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/X6VN2CU2", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/625981/items/48UR837S", "type": "application/json" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "X6VN2CU2", "version": 38, "parentItem": "48UR837S", "itemType": "attachment", "linkMode": "linked_url", "title": "NRC Research Press Snapshot", "accessDate": "2016-08-15T21:11:48Z", "url": "http://www.nrcresearchpress.com/doi/abs/10.1139/f78-173#.V7IwEpgrLt4", "note": "", "contentType": "text/html", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:11:48Z", "dateModified": "2016-08-15T21:11:48Z" } }, { "key": "48UR837S", "version": 38, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/48UR837S", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/48UR837S", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } }, "creatorSummary": "Liao and Lean", "parsedDate": "1978-08-01", "numChildren": 2 }, "data": { "key": "48UR837S", "version": 38, "itemType": "journalArticle", "title": "Seasonal Changes in Nitrogen Compartments of Lakes Under Different Loading Conditions", "creators": [ { "creatorType": "author", "firstName": "C. F.-H.", "lastName": "Liao" }, { "creatorType": "author", "firstName": "D. R. S.", "lastName": "Lean" } ], "abstractNote": "To develop a better conceptual picture for nitrogen dynamics in lake ecosystems, the seasonal changes in the concentrations of nitrate, ammonia, dissolved organic and particulate nitrogen were monitored in the water contained in three limnocorrals located in the Bay of Quinte, Ontario. Following the decline in summer particulate N, there was an increase in ammonia. This was followed by an increase in nitrate throughout the winter suggesting that nitrification was a significant process. To assess the potential contribution of the sediments, ammonia, nitrate, and dissolved organic N were measured for pore waters and total N, exchangeable ammonia, and nitrate in the solid fraction. The influence of nutrient addition was evaluated by comparing corral I, receiving no nutrient additions, with corral II to which phosphate was added (0.92 g P/m2 per yr) and corral III which received the same amount of phosphate plus nitrate at an N:P weight ratio of 13. Increases and decreases in phosphorus, nitrogen, and chlorop..., Pour se faire une meilleure idée du cycle de l'azote dans les écosystèmes lacustres, les auteurs ont mesuré les variations saisonnières de la concentration des nitrates, de l'ammoniaque, des particules azotées et de l'azote organique dissous dans trois enceintes situées dans la baie de Quinte, en Ontario. Après une diminution du nombre de particules azotées en été, la concentration d'ammoniaque s'est élevée. Durant l'hiver, les nitrates ont augmenté, ce qui porte à croire qu'il se produit une importante nitrification. Pour déterminer si les sédiments prenaient part au cycle, on a dosé l'ammoniaque, les nitrates et l'azote organique dissous dans les eaux intersticielles, ainsi que l'azote total, l'ammoniaque et les nitrates mobiles dans la fraction solide. On a aussi évalué l'effet des éléments nutritifs en comparant les résultats de l'enceinte témoin I à ceux de l'addition de 0,92 g de P à phosphates par m2 dans l'enceinte II, et à ceux de l'addition de la même quantité de phosphates que ci-dessus plus de...", "publicationTitle": "Journal of the Fisheries Research Board of Canada", "publisher": "", "place": "", "date": "August 1, 1978", "volume": "35", "issue": "8", "section": "", "partNumber": "", "partTitle": "", "pages": "1095-1101", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "J. Fish. Res. Bd. Can.", "DOI": "10.1139/f78-173", "citationKey": "", "url": "http://www.nrcresearchpress.com/doi/abs/10.1139/f78-173", "accessDate": "2016-08-15T21:11:48Z", "PMID": "", "PMCID": "", "ISSN": "0015-296X", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "NRC Research Press", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2016-08-15T21:11:48Z", "dateModified": "2016-08-15T21:11:48Z" } }, { "key": "IHV7U6FM", "version": 38, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/IHV7U6FM", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/IHV7U6FM", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/625981/items/48UR837S", "type": "application/json" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "IHV7U6FM", "version": 38, "parentItem": "48UR837S", "itemType": "attachment", "linkMode": "linked_url", "title": "NRC Research Press PDF fulltext", "accessDate": "2016-08-15T21:11:48Z", "url": "http://www.nrcresearchpress.com/doi/pdfplus/10.1139/f78-173", "note": "", "contentType": "application/pdf", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:11:48Z", "dateModified": "2016-08-15T21:11:48Z" } }, { "key": "52UNHVUS", "version": 37, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/52UNHVUS", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/52UNHVUS", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/625981/items/V3MDEAPM", "type": "application/json" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "52UNHVUS", "version": 37, "parentItem": "V3MDEAPM", "itemType": "attachment", "linkMode": "linked_url", "title": "NRC Research Press PDF fulltext", "accessDate": "2016-08-15T21:11:21Z", "url": "http://www.nrcresearchpress.com/doi/pdfplus/10.1139/f74-047", "note": "", "contentType": "application/pdf", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:11:21Z", "dateModified": "2016-08-15T21:11:21Z" } }, { "key": "T3EDCW4H", "version": 37, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/T3EDCW4H", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/T3EDCW4H", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/625981/items/V3MDEAPM", "type": "application/json" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "T3EDCW4H", "version": 37, "parentItem": "V3MDEAPM", "itemType": "attachment", "linkMode": "linked_url", "title": "NRC Research Press Snapshot", "accessDate": "2016-08-15T21:11:21Z", "url": "http://www.nrcresearchpress.com/doi/abs/10.1139/f74-047#.V7Iv9pgrLt4", "note": "", "contentType": "text/html", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:11:21Z", "dateModified": "2016-08-15T21:11:21Z" } }, { "key": "V3MDEAPM", "version": 37, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/V3MDEAPM", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/V3MDEAPM", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } }, "creatorSummary": "Gächter et al.", "parsedDate": "1974-03-01", "numChildren": 2 }, "data": { "key": "V3MDEAPM", "version": 37, "itemType": "journalArticle", "title": "Seasonal Variations of Temperature and Nutrients in the Surface Waters of Lakes Ontario and Erie", "creators": [ { "creatorType": "author", "firstName": "R.", "lastName": "Gächter" }, { "creatorType": "author", "firstName": "R. A.", "lastName": "Vollenweider" }, { "creatorType": "author", "firstName": "W. A.", "lastName": "Glooschenko" } ], "abstractNote": "During 1970, temperature and nutrient distributions were measured in surface waters of lakes Ontario (12 cruises) and Erie (10 cruises). Nutrient patterns are compared and discussed in relation to temperature, primary production, and nutrient sources.In Lake Erie, due to the early onset of the phytoplankton spring bloom, nutrient concentration started to decrease much earlier than in Lake Ontario. During spring, patterns of nutrients, chlorophyll a, and primary production were influenced by the thermal bar in Lake Ontario. In Lake Erie the nutrient supply controlled such patterns. In Lake Erie inorganic nutrients were depleted lake-wide in summer; in Lake Ontario, nutrients were highest in regions where upwelling occurred or inputs were high. Due to the earlier onset of fall overturn in Lake Erie, the nutrient concentration started to increase earlier in the fall than in Lake Ontario., Au cours de 1970, nous avons étudié la distribution des températures et des substances nutritives dans les eaux de surface des lacs Ontario (12 croisières) et Erié (10 croisières). Nous comparons dans ce travail les caractéristiques de la répartition des substances nutritives en relation avec la température, la production primaire et les sources de substances nutritives.Dans le lac Erié, par suite de l'arrivée hâtive de la poussée printanière du phytoplancton, la concentration des substances a commencé à diminuer plus tôt que dans le lac Ontario. Au printemps, la distribution des substances nutritives, la chlorophylle a et la production primaire ont été influencées par la barrière thermique dans le lac Ontario. Dans le lac Erié, cette distribution a été contrôlée par l'approvisionnement en substances nutritives. Dans le lac Erié, les substances nutritives inorganiques étaient épuisées à la grandeur du lac en été; dans le lac Ontario, les substances nutritives étaient à leur maximum dans les régions de rem...", "publicationTitle": "Journal of the Fisheries Research Board of Canada", "publisher": "", "place": "", "date": "March 1, 1974", "volume": "31", "issue": "3", "section": "", "partNumber": "", "partTitle": "", "pages": "275-290", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "J. Fish. Res. Bd. Can.", "DOI": "10.1139/f74-047", "citationKey": "", "url": "http://www.nrcresearchpress.com/doi/abs/10.1139/f74-047", "accessDate": "2016-08-15T21:11:21Z", "PMID": "", "PMCID": "", "ISSN": "0015-296X", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "", "libraryCatalog": "NRC Research Press", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2016-08-15T21:11:21Z", "dateModified": "2016-08-15T21:11:21Z" } }, { "key": "5Q8X8C89", "version": 36, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/5Q8X8C89", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/5Q8X8C89", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/625981/items/GG9ZUJFX", "type": "application/json" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "5Q8X8C89", "version": 36, "parentItem": "GG9ZUJFX", "itemType": "attachment", "linkMode": "linked_url", "title": "Snapshot", "accessDate": "2016-08-15T21:10:33Z", "url": "http://link.springer.com/article/10.1023/B:HYDR.0000008582.61851.76", "note": "", "contentType": "text/html", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:10:33Z", "dateModified": "2016-08-15T21:10:33Z" } }, { "key": "GSPKX6JA", "version": 36, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/GSPKX6JA", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/GSPKX6JA", "type": "text/html" }, "up": { "href": "https://api.zotero.org/groups/625981/items/GG9ZUJFX", "type": "application/json" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } } }, "data": { "key": "GSPKX6JA", "version": 36, "parentItem": "GG9ZUJFX", "itemType": "attachment", "linkMode": "linked_url", "title": "Full Text PDF", "accessDate": "2016-08-15T21:10:33Z", "url": "http://link.springer.com/content/pdf/10.1023%2FB%3AHYDR.0000008582.61851.76.pdf", "note": "", "contentType": "application/pdf", "charset": "", "tags": [], "relations": {}, "dateAdded": "2016-08-15T21:10:33Z", "dateModified": "2016-08-15T21:10:33Z" } }, { "key": "GG9ZUJFX", "version": 36, "library": { "type": "group", "id": 625981, "name": "undericeBGC", "links": { "alternate": { "href": "https://www.zotero.org/groups/undericebgc", "type": "text/html" } } }, "links": { "self": { "href": "https://api.zotero.org/groups/625981/items/GG9ZUJFX", "type": "application/json" }, "alternate": { "href": "https://www.zotero.org/groups/undericebgc/items/GG9ZUJFX", "type": "text/html" } }, "meta": { "createdByUser": { "id": 789246, "username": "stephlabou", "name": "", "links": { "alternate": { "href": "https://www.zotero.org/stephlabou", "type": "text/html" } } }, "creatorSummary": "Pettersson et al.", "numChildren": 2 }, "data": { "key": "GG9ZUJFX", "version": 36, "itemType": "journalArticle", "title": "Seasonality of chlorophyll and nutrients in Lake Erken – effects of weather conditions", "creators": [ { "creatorType": "author", "firstName": "Kurt", "lastName": "Pettersson" }, { "creatorType": "author", "firstName": "Karin", "lastName": "Grust" }, { "creatorType": "author", "firstName": "Gesa", "lastName": "Weyhenmeyer" }, { "creatorType": "author", "firstName": "Thorsten", "lastName": "Blenckner" } ], "abstractNote": "The seasonality of nutrients and chlorophyll a in Lake Erken (Sweden) was monitored during 1994 to 2001 (warm period) and compared to the time period 1975 to 1979 (cold period). The coupling to weather conditions and potentially influencing factors, such as water temperature, light conditions, and stratification were evaluated. During the warm period the ice cover period was considerably shorter and the ice breakup about one month earlier than in the cold period. The decrease in thickness and duration of snow cover resulted in considerably better light conditions during winter, favouring phytoplankton growth under the ice. The nitrate concentrations were much lower in late winter during the warm period. There were elevated phosphate and ammonium concentrations in the hypolimnion during August. Significantly higher phosphate and chlorophyll a levels were noticed in autumn during the warm period, compared to the cold period.", "publicationTitle": "Hydrobiologia", "publisher": "", "place": "", "date": "", "volume": "506-509", "issue": "1-3", "section": "", "partNumber": "", "partTitle": "", "pages": "75-81", "series": "", "seriesTitle": "", "seriesText": "", "journalAbbreviation": "Hydrobiologia", "DOI": "10.1023/B:HYDR.0000008582.61851.76", "citationKey": "", "url": "http://link.springer.com/article/10.1023/B:HYDR.0000008582.61851.76", "accessDate": "2016-08-15T21:10:33Z", "PMID": "", "PMCID": "", "ISSN": "0018-8158, 1573-5117", "archive": "", "archiveLocation": "", "shortTitle": "", "language": "en", "libraryCatalog": "link.springer.com", "callNumber": "", "rights": "", "extra": "", "tags": [], "collections": [], "relations": {}, "dateAdded": "2016-08-15T21:10:33Z", "dateModified": "2016-08-15T21:10:33Z" } } ]