What is the Impact Factor of Extremophiles?

According to the latest Clarivate Journal Citation Reports (JCR), the Journal Impact Factor of Extremophiles is 2.20, ranking in quartile Q4 of Web of Science (SCIE).

Is Extremophiles indexed in Web of Science or Scopus?

Yes, Extremophiles is indexed in Web of Science (SCIE, Q4 quartile). Furthermore, in Scopus (SCImago), it holds an SJR rating of 0.578 (Q2) and an H-index of 105.

Who publishes Extremophiles and what is the Article Processing Charge (APC)?

Extremophiles is published by Springer Japan. The estimated Article Processing Charge (APC) is approximately $3,067 USD, subject to institutional waivers and corresponding author affiliations.

What is the ISO-4 abbreviation and acronym of Extremophiles?

The official ISO-4 abbreviation of Extremophiles is "EXTREMOPHILES" with common acronym "extremo". This standardized title abbreviation is used in citation lists conforming to IEEE, APA, Harvard, or Vancouver styles.

WoS SCIE Q4Scopus Q2SCImago #10,247Hybrid

Extremophiles

Acronym:extremo

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Abbreviation (ISO):EXTREMOPHILES

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Identifier (ISSN):1431-0651(Print)/1433-4909(Online)

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Publisher:Springer Japan

Official Website Submission Portal Compare

Clarivate IF (2026)

2.2↓ -0.4

Journal Impact Factor

IF Trend↓

WoS Quartile

WoS SCIEJCR Quartile

Clarivate WoS JCR

WoS Categories↓

JCR Release Date: 2026-06-17

Impact Factor Trend (2018–2026)

Clarivate IF trend for Extremophiles

WoS Q4

Annual Impact Factor Metric

Current (2026):2.2

Scopus SJR & RankScopus Q2

0.578

#10,247

SCImago Journal Rank citation prestige weighting

Scopus Year: 2025

H-Index (2025)

105

105 papers with at least that number of citations each

WoS: SCIE / JCRQ4

Self-Citation Rate7.7%

Safe Level (< 15%)Warning Level (> 20%)

Self-citation below 15% indicates strong scholarly independence.

Volume & Open AccessHybrid

38articles/year

18.7% Gold OA•89.19% Original Research

Aims & Scope

Extremophiles features original research articles, reviews, and method papers on the biology, molecular biology, structure, function, and applications of microbial life at high or low temperature, pressure, acidity, alkalinity, salinity, or desiccation; or in the presence of organic solvents, heavy metals, normally toxic substances, or radiation.

Topics Covered (Recognized by AI)

Biology99.6%Genetics96.5%Chemistry95.4%Biochemistry91.5%Geology87.8%Paleontology86.3%Bacteria84.9%Gene73.7%Organic chemistry71.6%Physics62.6%Nuclear magnetic resonance55.3%Enzyme54.2%Ecology34.8%Archaea30.5%Microbiology26.6%Medicine25.2%16S ribosomal RNA24.3%Botany23.3%Thermophile23%

Primary Research Areas

Biology Biochemistry & Molecular Biology

Official Website NLM PubMed Catalog Submission Portal SCImago Profile

0 calls

Special Issues

Calls for Papers

No active Calls for Papers found for this journal.

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WoS Categories & Quartiles

Detailed JCR / JCI category rankings and quartile breakdown from Clarivate

Clarivate JCR & JCI

JCRSCIE2026

BIOCHEMISTRY & MOLECULAR BIOLOGY

Rank258/328

IndexSCIE

JCRSCIE2026

MICROBIOLOGY

Rank127/167

IndexSCIE

JCISCIE2026

BIOCHEMISTRY & MOLECULAR BIOLOGY

Rank209/328

IndexSCIE

JCISCIE2026

MICROBIOLOGY

Rank115/167

IndexSCIE

Category	Index	Rank	Quartile
BIOCHEMISTRY & MOLECULAR BIOLOGY	JCRSCIE	258/328	Q4
MICROBIOLOGY	JCRSCIE	127/167	Q4
BIOCHEMISTRY & MOLECULAR BIOLOGY	JCISCIE	209/328	Q3
MICROBIOLOGY	JCISCIE	115/167	Q3

Annual Historical Statistics & Publications

Track annual publication volume, total citations, and Impact Factor evolution

12 year

2026Latest

IF2.2

Articles / Year27

Total Citations6

2025

IF2.6

Articles / Year37

Total Citations67

2024

IF2.6

Articles / Year52

Total Citations266

2023

IF2.9

Articles / Year49

Total Citations256

2022

IF3.035

Articles / Year68

Total Citations536

Year	Impact Factor	Articles / Year	Total Citations
2026	2.2	27	6
2025	2.6	37	67
2024	2.6	52	266
2023	2.9	49	256
2022	3.035	68	536
2021	2.395	45	701
2020	2.462	55	1,103
2019	2.046	81	1,777
2018	2	94	1,846
2017	—	105	2,440
2016	—	151	2,443
2015	—	83	2,429

SCImago & Scopus Journal Intelligence

Global SCImago ranking, SJR prestige index, Scopus coverage, and societal policy impact

Rank #10,247Scopus Q2SCImago Profile

Scopus Coverage:1997-2026

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Scopus Broad Areas:Biochemistry, Genetics and Molecular BiologyImmunology and MicrobiologyMedicine

Scopus Citation Rank (SJR)Q2

0.578

Weighted prestige citation metric per document indexed in the Scopus database.

Quartile: Scopus Q2

Citations / Doc (2 years)

2.34

Average citations received per document published in the 2-year window.

2-Year Citation Window

Estimated Publication Fee (APC)

$3,067 USD

Estimated Article Processing Charge for Open Access publication.

Estimated cost / article

Scopus 3-Year Publication & Citation Window

3-Year Citations300

3-Year Documents113

Citable Documents112

Aggregated from Scopus database across the 3-year SJR evaluation window.

Societal Impact & Inclusivity (SCImago)

Policy Citations (Overton)0

Citations in government and international policy documents

Female Author Rate41.9%

Percentage of female authors published in the journal

Real-world societal policy reach and author gender diversity tracked by SCImago.

Scopus Subject Categories

Medicine (miscellaneous)Q2

MicrobiologyQ3

Molecular MedicineQ3

Academic Metric Intelligence

Journal Metrics & Citation Visualizations

Total Cites vs Self-Cites

Evaluation of scholarly independence and citation reach

Total citations steady growth

Self-citation: 7.7%

Citations per Document

Citation metric windows across 2, 3, and 4 years

Cites / Doc (4 years)Cites / Doc (3 years)Cites / Doc (2 years)

Chinese Academy of Sciences (CAS) Classification

Major / minor zone classification and CAS Early Warning List history

Major Category (Broad Field):

3区 (Zone 3)Biology

Minor Category (Specific Field):

3区BIOCHEMISTRY & MOLECULAR BIOLOGY

CAS Early Warning List History:

Updated annually: 2020 – 2024

2020

Not warned

2021

Not warned

2022

Not warned

2023

Not warned

2024

Not warned

Academic Intelligence Overview & Context

ImpaQ Analysis

Extremophiles (acronym: extremo, abbr: EXTREMOPHILES, ISSN: 1431-0651) is a peer-reviewed international scholarly journal in the field of Biology, published by Springer Japan in Japan since 1997. The periodical holds a Journal Impact Factor (JIF) of 2.20, ranking in quartile Q4 of Web of Science (SCIE), a Scopus SJR indicator of 0.578 (Q2), an H-index of 105.

The journal enforces rigorous peer evaluation with a publication frequency of Bimonthly, an annual output of approximately 38 scientific articles. In terms of accessibility and author fees, it operates under the Hybrid model with an estimated APC of $3,067 USD. It serves as a benchmark publication platform for academics, researchers, and doctoral candidates seeking global research visibility.