Marine Environmental Research

Marine Environmental Research publishes original research papers on chemical, physical, and biological interactions in the oceans and coastal waters. The journal serves as a forum for new information on biology, chemistry, and toxicology and syntheses that advance understanding of marine environmental processes. Submission of multidisciplinary studies is encouraged. Studies that utilize experimental approaches to clarify the roles of anthropogenic and natural causes of changes in marine ecosystems are especially welcome, as are those studies that represent new developments of a theoretical or conceptual aspect of marine science. All papers published in this journal are reviewed by qualified peers prior to acceptance and publication. Examples of topics considered to be appropriate for the journal include, but are not limited to, the following: – The extent, persistence, and consequences of change and the recovery from such change in natural marine systems – The biochemical, physiological, and ecological consequences of contaminants to marine organisms and ecosystems – The biogeochemistry of naturally occurring and anthropogenic substances – Models that describe and predict the above processes – Monitoring studies, to the extent that their results provide new information on functional processes – Methodological papers describing improved quantitative techniques for the marine sciences.

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Quartiles

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.

Category	Year	Quartile
Aquatic Science	1999	Q2
Aquatic Science	2000	Q1
Aquatic Science	2001	Q2
Aquatic Science	2002	Q2
Aquatic Science	2003	Q2
Aquatic Science	2004	Q1
Aquatic Science	2005	Q2
Aquatic Science	2006	Q1
Aquatic Science	2007	Q2
Aquatic Science	2008	Q1
Aquatic Science	2009	Q2
Aquatic Science	2010	Q2
Aquatic Science	2011	Q2
Aquatic Science	2012	Q2
Aquatic Science	2013	Q2
Aquatic Science	2014	Q1
Aquatic Science	2015	Q1
Aquatic Science	2016	Q1
Aquatic Science	2017	Q1
Aquatic Science	2018	Q1
Aquatic Science	2019	Q1
Aquatic Science	2020	Q1
Aquatic Science	2021	Q1
Aquatic Science	2022	Q1
Aquatic Science	2023	Q1
Medicine (miscellaneous)	1999	Q1
Medicine (miscellaneous)	2000	Q1
Medicine (miscellaneous)	2001	Q1
Medicine (miscellaneous)	2002	Q1
Medicine (miscellaneous)	2003	Q1
Medicine (miscellaneous)	2004	Q1
Medicine (miscellaneous)	2005	Q1
Medicine (miscellaneous)	2006	Q1
Medicine (miscellaneous)	2007	Q1
Medicine (miscellaneous)	2008	Q1
Medicine (miscellaneous)	2009	Q1
Medicine (miscellaneous)	2010	Q1
Medicine (miscellaneous)	2011	Q1
Medicine (miscellaneous)	2012	Q1
Medicine (miscellaneous)	2013	Q1
Medicine (miscellaneous)	2014	Q1
Medicine (miscellaneous)	2015	Q1
Medicine (miscellaneous)	2016	Q1
Medicine (miscellaneous)	2017	Q1
Medicine (miscellaneous)	2018	Q1
Medicine (miscellaneous)	2019	Q1
Medicine (miscellaneous)	2020	Q1
Medicine (miscellaneous)	2021	Q2
Medicine (miscellaneous)	2022	Q2
Medicine (miscellaneous)	2023	Q1
Oceanography	1999	Q2
Oceanography	2000	Q1
Oceanography	2001	Q2
Oceanography	2002	Q2
Oceanography	2003	Q2
Oceanography	2004	Q1
Oceanography	2005	Q2
Oceanography	2006	Q1
Oceanography	2007	Q2
Oceanography	2008	Q1
Oceanography	2009	Q2
Oceanography	2010	Q2
Oceanography	2011	Q2
Oceanography	2012	Q2
Oceanography	2013	Q2
Oceanography	2014	Q2
Oceanography	2015	Q1
Oceanography	2016	Q1
Oceanography	2017	Q1
Oceanography	2018	Q1
Oceanography	2019	Q1
Oceanography	2020	Q1
Oceanography	2021	Q1
Oceanography	2022	Q1
Oceanography	2023	Q1
Pollution	1999	Q2
Pollution	2000	Q1
Pollution	2001	Q2
Pollution	2002	Q2
Pollution	2003	Q1
Pollution	2004	Q1
Pollution	2005	Q2
Pollution	2006	Q1
Pollution	2007	Q1
Pollution	2008	Q1
Pollution	2009	Q2
Pollution	2010	Q2
Pollution	2011	Q2
Pollution	2012	Q2
Pollution	2013	Q1
Pollution	2014	Q1
Pollution	2015	Q1
Pollution	2016	Q1
Pollution	2017	Q1
Pollution	2018	Q1
Pollution	2019	Q1
Pollution	2020	Q1
Pollution	2021	Q2
Pollution	2022	Q2
Pollution	2023	Q2

SJR

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.

Year	SJR
1999	0.682
2000	1.130
2001	0.644
2002	0.715
2003	0.829
2004	1.309
2005	0.775
2006	1.357
2007	0.894
2008	0.989
2009	0.832
2010	0.839
2011	0.898
2012	0.928
2013	0.974
2014	0.949
2015	1.099
2016	1.128
2017	1.057
2018	1.081
2019	0.984
2020	1.041
2021	0.814
2022	0.865
2023	0.876

Total Documents

Evolution of the number of published documents. All types of documents are considered, including citable and non citable documents.

Year	Documents
1999	56
2000	228
2001	52
2002	146
2003	57
2004	150
2005	62
2006	135
2007	78
2008	144
2009	65
2010	114
2011	77
2012	118
2013	124
2014	146
2015	139
2016	141
2017	180
2018	227
2019	163
2020	295
2021	232
2022	204
2023	363

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 document	Year	Value
Cites / Doc. (4 years)	1999	1.192
Cites / Doc. (4 years)	2000	1.561
Cites / Doc. (4 years)	2001	0.902
Cites / Doc. (4 years)	2002	1.387
Cites / Doc. (4 years)	2003	1.506
Cites / Doc. (4 years)	2004	1.785
Cites / Doc. (4 years)	2005	1.926
Cites / Doc. (4 years)	2006	2.605
Cites / Doc. (4 years)	2007	2.017
Cites / Doc. (4 years)	2008	2.386
Cites / Doc. (4 years)	2009	2.205
Cites / Doc. (4 years)	2010	2.130
Cites / Doc. (4 years)	2011	2.603
Cites / Doc. (4 years)	2012	2.603
Cites / Doc. (4 years)	2013	2.837
Cites / Doc. (4 years)	2014	3.099
Cites / Doc. (4 years)	2015	3.439
Cites / Doc. (4 years)	2016	3.696
Cites / Doc. (4 years)	2017	3.580
Cites / Doc. (4 years)	2018	4.074
Cites / Doc. (4 years)	2019	3.518
Cites / Doc. (4 years)	2020	4.114
Cites / Doc. (4 years)	2021	3.901
Cites / Doc. (4 years)	2022	3.659
Cites / Doc. (4 years)	2023	3.416
Cites / Doc. (3 years)	1999	1.192
Cites / Doc. (3 years)	2000	1.601
Cites / Doc. (3 years)	2001	0.802
Cites / Doc. (3 years)	2002	1.390
Cites / Doc. (3 years)	2003	1.397
Cites / Doc. (3 years)	2004	2.353
Cites / Doc. (3 years)	2005	1.734
Cites / Doc. (3 years)	2006	2.520
Cites / Doc. (3 years)	2007	1.905
Cites / Doc. (3 years)	2008	2.364
Cites / Doc. (3 years)	2009	2.025
Cites / Doc. (3 years)	2010	2.111
Cites / Doc. (3 years)	2011	2.452
Cites / Doc. (3 years)	2012	2.656
Cites / Doc. (3 years)	2013	2.673
Cites / Doc. (3 years)	2014	2.950
Cites / Doc. (3 years)	2015	3.492
Cites / Doc. (3 years)	2016	3.462
Cites / Doc. (3 years)	2017	3.566
Cites / Doc. (3 years)	2018	3.941
Cites / Doc. (3 years)	2019	3.323
Cites / Doc. (3 years)	2020	3.751
Cites / Doc. (3 years)	2021	3.542
Cites / Doc. (3 years)	2022	3.697
Cites / Doc. (3 years)	2023	3.465
Cites / Doc. (2 years)	1999	1.107
Cites / Doc. (2 years)	2000	1.517
Cites / Doc. (2 years)	2001	0.542
Cites / Doc. (2 years)	2002	1.121
Cites / Doc. (2 years)	2003	1.611
Cites / Doc. (2 years)	2004	2.177
Cites / Doc. (2 years)	2005	1.522
Cites / Doc. (2 years)	2006	2.311
Cites / Doc. (2 years)	2007	1.782
Cites / Doc. (2 years)	2008	2.117
Cites / Doc. (2 years)	2009	1.874
Cites / Doc. (2 years)	2010	1.900
Cites / Doc. (2 years)	2011	2.525
Cites / Doc. (2 years)	2012	2.492
Cites / Doc. (2 years)	2013	2.426
Cites / Doc. (2 years)	2014	3.017
Cites / Doc. (2 years)	2015	3.137
Cites / Doc. (2 years)	2016	3.435
Cites / Doc. (2 years)	2017	3.211
Cites / Doc. (2 years)	2018	3.626
Cites / Doc. (2 years)	2019	2.914
Cites / Doc. (2 years)	2020	3.110
Cites / Doc. (2 years)	2021	3.493
Cites / Doc. (2 years)	2022	3.685
Cites / Doc. (2 years)	2023	3.032

Total Cites

Self-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.

Cites	Year	Value
Self Cites	1999	19
Self Cites	2000	46
Self Cites	2001	20
Self Cites	2002	31
Self Cites	2003	20
Self Cites	2004	43
Self Cites	2005	22
Self Cites	2006	40
Self Cites	2007	31
Self Cites	2008	30
Self Cites	2009	28
Self Cites	2010	33
Self Cites	2011	27
Self Cites	2012	40
Self Cites	2013	56
Self Cites	2014	71
Self Cites	2015	96
Self Cites	2016	90
Self Cites	2017	90
Self Cites	2018	101
Self Cites	2019	97
Self Cites	2020	156
Self Cites	2021	90
Self Cites	2022	88
Self Cites	2023	120
Total Cites	1999	335
Total Cites	2000	405
Total Cites	2001	344
Total Cites	2002	467
Total Cites	2003	595
Total Cites	2004	600
Total Cites	2005	612
Total Cites	2006	678
Total Cites	2007	661
Total Cites	2008	650
Total Cites	2009	723
Total Cites	2010	606
Total Cites	2011	792
Total Cites	2012	680
Total Cites	2013	826
Total Cites	2014	941
Total Cites	2015	1355
Total Cites	2016	1416
Total Cites	2017	1519
Total Cites	2018	1813
Total Cites	2019	1821
Total Cites	2020	2138
Total Cites	2021	2426
Total Cites	2022	2551
Total Cites	2023	2533

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.

Cites	Year	Value
External Cites per document	1999	1.125
External Cites per document	2000	1.419
External Cites per document	2001	0.755
External Cites per document	2002	1.298
External Cites per document	2003	1.350
External Cites per document	2004	2.184
External Cites per document	2005	1.671
External Cites per document	2006	2.372
External Cites per document	2007	1.816
External Cites per document	2008	2.255
External Cites per document	2009	1.947
External Cites per document	2010	1.997
External Cites per document	2011	2.368
External Cites per document	2012	2.500
External Cites per document	2013	2.492
External Cites per document	2014	2.727
External Cites per document	2015	3.245
External Cites per document	2016	3.242
External Cites per document	2017	3.354
External Cites per document	2018	3.722
External Cites per document	2019	3.146
External Cites per document	2020	3.477
External Cites per document	2021	3.410
External Cites per document	2022	3.570
External Cites per document	2023	3.301
Cites per document	1999	1.192
Cites per document	2000	1.601
Cites per document	2001	0.802
Cites per document	2002	1.390
Cites per document	2003	1.397
Cites per document	2004	2.353
Cites per document	2005	1.734
Cites per document	2006	2.520
Cites per document	2007	1.905
Cites per document	2008	2.364
Cites per document	2009	2.025
Cites per document	2010	2.111
Cites per document	2011	2.452
Cites per document	2012	2.656
Cites per document	2013	2.673
Cites per document	2014	2.950
Cites per document	2015	3.492
Cites per document	2016	3.462
Cites per document	2017	3.566
Cites per document	2018	3.941
Cites per document	2019	3.323
Cites per document	2020	3.751
Cites per document	2021	3.542
Cites per document	2022	3.697
Cites per document	2023	3.465

% 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.

Year	International Collaboration
1999	12.50
2000	18.86
2001	19.23
2002	19.86
2003	24.56
2004	24.67
2005	27.42
2006	20.74
2007	24.36
2008	27.08
2009	24.62
2010	27.19
2011	24.68
2012	32.20
2013	28.23
2014	31.51
2015	45.32
2016	45.39
2017	48.33
2018	40.97
2019	45.40
2020	38.98
2021	43.53
2022	38.24
2023	30.58

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.

Documents	Year	Value
Non-citable documents	1999	1
Non-citable documents	2000	3
Non-citable documents	2001	5
Non-citable documents	2002	4
Non-citable documents	2003	12
Non-citable documents	2004	13
Non-citable documents	2005	24
Non-citable documents	2006	14
Non-citable documents	2007	12
Non-citable documents	2008	1
Non-citable documents	2009	2
Non-citable documents	2010	3
Non-citable documents	2011	5
Non-citable documents	2012	7
Non-citable documents	2013	7
Non-citable documents	2014	6
Non-citable documents	2015	7
Non-citable documents	2016	7
Non-citable documents	2017	7
Non-citable documents	2018	5
Non-citable documents	2019	3
Non-citable documents	2020	2
Non-citable documents	2021	1
Non-citable documents	2022	1
Non-citable documents	2023	2
Citable documents	1999	280
Citable documents	2000	250
Citable documents	2001	424
Citable documents	2002	332
Citable documents	2003	414
Citable documents	2004	242
Citable documents	2005	329
Citable documents	2006	255
Citable documents	2007	335
Citable documents	2008	274
Citable documents	2009	355
Citable documents	2010	284
Citable documents	2011	318
Citable documents	2012	249
Citable documents	2013	302
Citable documents	2014	313
Citable documents	2015	381
Citable documents	2016	402
Citable documents	2017	419
Citable documents	2018	455
Citable documents	2019	545
Citable documents	2020	568
Citable documents	2021	684
Citable documents	2022	689
Citable documents	2023	729

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.

Documents	Year	Value
Uncited documents	1999	117
Uncited documents	2000	82
Uncited documents	2001	261
Uncited documents	2002	152
Uncited documents	2003	201
Uncited documents	2004	58
Uncited documents	2005	106
Uncited documents	2006	53
Uncited documents	2007	96
Uncited documents	2008	67
Uncited documents	2009	108
Uncited documents	2010	70
Uncited documents	2011	76
Uncited documents	2012	51
Uncited documents	2013	54
Uncited documents	2014	60
Uncited documents	2015	62
Uncited documents	2016	60
Uncited documents	2017	58
Uncited documents	2018	67
Uncited documents	2019	91
Uncited documents	2020	64
Uncited documents	2021	94
Uncited documents	2022	77
Uncited documents	2023	94
Cited documents	1999	164
Cited documents	2000	171
Cited documents	2001	168
Cited documents	2002	184
Cited documents	2003	225
Cited documents	2004	197
Cited documents	2005	247
Cited documents	2006	216
Cited documents	2007	251
Cited documents	2008	208
Cited documents	2009	249
Cited documents	2010	217
Cited documents	2011	247
Cited documents	2012	205
Cited documents	2013	255
Cited documents	2014	259
Cited documents	2015	326
Cited documents	2016	349
Cited documents	2017	368
Cited documents	2018	393
Cited documents	2019	457
Cited documents	2020	506
Cited documents	2021	591
Cited documents	2022	613
Cited documents	2023	637