Scimago Journal & Country Rank


Country United States  - SIR icon SIR Ranking of United States
H Index
Subject Area and CategoryAgricultural and Biological Sciences
Aquatic Science
Plant Science
PublisherAllen Press Inc.
Publication typeJournals
Coverage1981, 1983-1984, 1988-ongoing
Scope Phycologia, the journal of the International Phycological Society, is published bimonthly in English covering all aspects of algal biology: original research articles, major topical reviews, research notes, commentaries, book reviews, announcements of meetings and field courses and memorials of prominent phycologists. Subscriptions include the occasional supplement on a particular phycological topic or abstracts of papers presented at the Society’s congresses.
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The set of journals have been ranked according to their SJR and divided into four equal groups, four quartiles. Q1 (green) comprises the quarter of the journals with the highest values, Q2 (yellow) the second highest values, Q3 (orange) the third highest values and Q4 (red) the lowest values.

Aquatic Science1999Q2
Aquatic Science2000Q2
Aquatic Science2001Q2
Aquatic Science2002Q2
Aquatic Science2003Q2
Aquatic Science2004Q1
Aquatic Science2005Q2
Aquatic Science2006Q2
Aquatic Science2007Q2
Aquatic Science2008Q2
Aquatic Science2009Q2
Aquatic Science2010Q2
Aquatic Science2011Q1
Aquatic Science2012Q2
Aquatic Science2013Q2
Aquatic Science2014Q2
Aquatic Science2015Q2
Aquatic Science2016Q2
Aquatic Science2017Q2
Plant Science1999Q1
Plant Science2000Q2
Plant Science2001Q1
Plant Science2002Q1
Plant Science2003Q1
Plant Science2004Q1
Plant Science2005Q1
Plant Science2006Q1
Plant Science2007Q1
Plant Science2008Q2
Plant Science2009Q2
Plant Science2010Q1
Plant Science2011Q1
Plant Science2012Q1
Plant Science2013Q1
Plant Science2014Q1
Plant Science2015Q1
Plant Science2016Q2
Plant Science2017Q2

The SJR is a size-independent prestige indicator that ranks journals by their 'average prestige per article'. It is based on the idea that 'all citations are not created equal'. SJR is a measure of scientific influence of journals that accounts for both the number of citations received by a journal and the importance or prestige of the journals where such citations come from It measures the scientific influence of the average article in a journal, it expresses how central to the global scientific discussion an average article of the journal is.

Citations per document

This indicator counts the number of citations received by documents from a journal and divides them by the total number of documents published in that journal. The chart shows the evolution of the average number of times documents published in a journal in the past two, three and four years have been cited in the current year. The two years line is equivalent to journal impact factor ™ (Thomson Reuters) metric.

Cites per documentYearValue
Cites / Doc. (4 years)19991.505
Cites / Doc. (4 years)20001.359
Cites / Doc. (4 years)20011.264
Cites / Doc. (4 years)20021.498
Cites / Doc. (4 years)20031.573
Cites / Doc. (4 years)20041.843
Cites / Doc. (4 years)20051.678
Cites / Doc. (4 years)20061.468
Cites / Doc. (4 years)20071.659
Cites / Doc. (4 years)20081.471
Cites / Doc. (4 years)20091.388
Cites / Doc. (4 years)20101.834
Cites / Doc. (4 years)20111.810
Cites / Doc. (4 years)20121.974
Cites / Doc. (4 years)20132.223
Cites / Doc. (4 years)20142.050
Cites / Doc. (4 years)20151.888
Cites / Doc. (4 years)20162.071
Cites / Doc. (4 years)20171.760
Cites / Doc. (3 years)19991.505
Cites / Doc. (3 years)20001.085
Cites / Doc. (3 years)20011.282
Cites / Doc. (3 years)20021.633
Cites / Doc. (3 years)20031.549
Cites / Doc. (3 years)20041.670
Cites / Doc. (3 years)20051.462
Cites / Doc. (3 years)20061.503
Cites / Doc. (3 years)20071.507
Cites / Doc. (3 years)20081.308
Cites / Doc. (3 years)20091.385
Cites / Doc. (3 years)20101.809
Cites / Doc. (3 years)20111.870
Cites / Doc. (3 years)20121.930
Cites / Doc. (3 years)20132.119
Cites / Doc. (3 years)20141.994
Cites / Doc. (3 years)20151.844
Cites / Doc. (3 years)20161.895
Cites / Doc. (3 years)20171.893
Cites / Doc. (2 years)19991.366
Cites / Doc. (2 years)20001.120
Cites / Doc. (2 years)20011.311
Cites / Doc. (2 years)20021.654
Cites / Doc. (2 years)20031.403
Cites / Doc. (2 years)20041.622
Cites / Doc. (2 years)20051.341
Cites / Doc. (2 years)20061.246
Cites / Doc. (2 years)20071.333
Cites / Doc. (2 years)20081.207
Cites / Doc. (2 years)20091.217
Cites / Doc. (2 years)20102.022
Cites / Doc. (2 years)20111.769
Cites / Doc. (2 years)20121.693
Cites / Doc. (2 years)20131.910
Cites / Doc. (2 years)20141.958
Cites / Doc. (2 years)20151.760
Cites / Doc. (2 years)20161.893
Cites / Doc. (2 years)20171.784
Total Cites 

Evolution of the total number of citations and journal's self-citations received by a journal's published documents during the three previous years.
Journal Self-citation is defined as the number of citation from a journal citing article to articles published by the same journal.

Self Cites199940
Self Cites200040
Self Cites200145
Self Cites200234
Self Cites200336
Self Cites200434
Self Cites200540
Self Cites200631
Self Cites200739
Self Cites200826
Self Cites200912
Self Cites201022
Self Cites201124
Self Cites201223
Self Cites201323
Self Cites201430
Self Cites201526
Self Cites201637
Self Cites201745
Total Cites1999298
Total Cites2000179
Total Cites2001223
Total Cites2002294
Total Cites2003302
Total Cites2004314
Total Cites2005288
Total Cites2006296
Total Cites2007309
Total Cites2008272
Total Cites2009259
Total Cites2010293
Total Cites2011258
Total Cites2012276
Total Cites2013339
Total Cites2014339
Total Cites2015332
Total Cites2016343
Total Cites2017354
External Cites per Doc 
Cites per Doc

Evolution of the number of total citation per document and external citation per document (i.e. journal self-citations removed) received by a journal's published documents during the three previous years. External citations are calculated by subtracting the number of self-citations from the total number of citations received by the journal’s documents.

External Cites per document19991.303
External Cites per document20000.842
External Cites per document20011.023
External Cites per document20021.444
External Cites per document20031.364
External Cites per document20041.489
External Cites per document20051.259
External Cites per document20061.345
External Cites per document20071.317
External Cites per document20081.183
External Cites per document20091.321
External Cites per document20101.673
External Cites per document20111.696
External Cites per document20121.769
External Cites per document20131.975
External Cites per document20141.818
External Cites per document20151.700
External Cites per document20161.691
External Cites per document20171.652
Cites per document19991.505
Cites per document20001.085
Cites per document20011.282
Cites per document20021.633
Cites per document20031.549
Cites per document20041.670
Cites per document20051.462
Cites per document20061.503
Cites per document20071.507
Cites per document20081.308
Cites per document20091.385
Cites per document20101.809
Cites per document20111.870
Cites per document20121.930
Cites per document20132.119
Cites per document20141.994
Cites per document20151.844
Cites per document20161.895
Cites per document20171.893
% International Collaboration

International Collaboration accounts for the articles that have been produced by researchers from several countries. The chart shows the ratio of a journal's documents signed by researchers from more than one country; that is including more than one country address.

YearInternational Collaboration
Citable documents 
Non-citable documents

Not every article in a journal is considered primary research and therefore "citable", this chart shows the ratio of a journal's articles including substantial research (research articles, conference papers and reviews) in three year windows vs. those documents other than research articles, reviews and conference papers.

Non-citable documents19993
Non-citable documents20004
Non-citable documents20015
Non-citable documents20023
Non-citable documents20035
Non-citable documents20046
Non-citable documents20055
Non-citable documents20064
Non-citable documents20074
Non-citable documents20087
Non-citable documents200911
Non-citable documents201010
Non-citable documents201112
Non-citable documents201210
Non-citable documents201310
Non-citable documents201410
Non-citable documents20157
Non-citable documents20168
Non-citable documents20176
Citable documents1999198
Citable documents2000165
Citable documents2001174
Citable documents2002180
Citable documents2003195
Citable documents2004188
Citable documents2005197
Citable documents2006197
Citable documents2007205
Citable documents2008208
Citable documents2009187
Citable documents2010162
Citable documents2011138
Citable documents2012143
Citable documents2013160
Citable documents2014170
Citable documents2015180
Citable documents2016181
Citable documents2017187
Cited documents 
Uncited documents

Ratio of a journal's items, grouped in three years windows, that have been cited at least once vs. those not cited during the following year.

Uncited documents199979
Uncited documents200084
Uncited documents200183
Uncited documents200263
Uncited documents200387
Uncited documents200463
Uncited documents200577
Uncited documents200682
Uncited documents200777
Uncited documents200888
Uncited documents200978
Uncited documents201047
Uncited documents201152
Uncited documents201254
Uncited documents201353
Uncited documents201463
Uncited documents201565
Uncited documents201664
Uncited documents201756
Cited documents1999122
Cited documents200085
Cited documents200196
Cited documents2002120
Cited documents2003113
Cited documents2004131
Cited documents2005125
Cited documents2006119
Cited documents2007132
Cited documents2008127
Cited documents2009120
Cited documents2010125
Cited documents201198
Cited documents201299
Cited documents2013117
Cited documents2014117
Cited documents2015122
Cited documents2016125
Cited documents2017137
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