Journal profile · MARINE & FRESHWATER BIOLOGY-OCEANOGRAPHY
THALASSAS
ISSN 0212-5919 · eISSN 2366-1674 · Springer International Publishing · SPAIN · Semiannual · Founded 2016
THALASSAS: CAS Zone 4 · Biology (2025 upgraded edition); impact factor 1; hybrid open access; APC about USD 3,090; median 117 days to acceptance (114 articles, last 24 months); community-reported acceptance: about 75%; 230 articles in 2025; indexed in SCIE and Scopus.
Scope
Aims, scope and focus
THALASSAS is published by Springer International Publishing and is in Zone 4 of Biology in the CAS Journal Ranking (2025 upgraded edition). By OpenAlex counts of its recent articles, its largest topics are Fish Biology and Ecology Studies, Marine and fisheries research and Marine Biology and Ecology Research, together about 33.5% of its articles. Its main subfields are Global and Planetary Change. (generated from OpenAlex topic counts and CAS ranking data)
Thalassas is an international journal devoted to multidisciplinary studies in marine sciences, covering the deep sea to coastal environments. It accepts papers concerning marine and coastal biology, chemistry, geology and physics, especially if a multidisciplinary approach is followed.Information on Open Research Funding and Support may be found here: https://www.springernature.com/gp/open-research/institutional-agreements
From the journal's Aims & Scope
Research area (LetPub): MARINE & FRESHWATER BIOLOGY-OCEANOGRAPHY
Editor-in-chief Manuel J. ReigosaPublisher website
Editorial board by country: 2 in mainland China (about 13%); most named Spain 4, United States 3, Mainland China 2, Argentina 2, India 1 (16 members with a country) Editorial board ↗Publisher website ·
Main research topics OpenAlex counts of recent articles; shares are approximate
- Fish Biology and Ecology StudiesAgricultural and Biological Sciences13.9%
- Marine and fisheries researchEnvironmental Science12.3%
- Marine Biology and Ecology ResearchEarth and Planetary Sciences7.3%
- Identification and Quantification in FoodBiochemistry, Genetics and Molecular Biology7.3%
- Ichthyology and Marine BiologyEnvironmental Science7.1%
- Marine Ecology and Invasive SpeciesEnvironmental Science5.6%
- Coral and Marine Ecosystems StudiesEnvironmental Science5.5%
- Marine Bivalve and Aquaculture StudiesEnvironmental Science4.7%
Rankings & indexing
CAS ranking and database indexing
CAS Journal Ranking
CAS Journal Ranking, upgraded edition (March 2025)Biology Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Biology | Zone 4 |
| Minor | Marine & Freshwater Biology | Zone 4 |
| Minor | Oceanography | Zone 4 |
Top journal: noReview journal: no
CAS Xinrui Journal Ranking (March 2026)Biology Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Biology | Zone 4 |
| Minor | Marine & Freshwater Biology | Zone 4 |
| Minor | Oceanography | Zone 4 |
Top journal: noReview journal: not marked
CAS Journal Ranking, previous upgraded edition (December 2023)Earth Sciences Zone 4
| Level | Category | Zone |
|---|---|---|
| Major | Earth Sciences | Zone 4 |
| Minor | Marine & Freshwater Biology | Zone 4 |
| Minor | Oceanography | Zone 4 |
Top journal: noReview journal: no
Database indexing
SCIEScopusLetPub
International journal early-warning lists: not listed in any editionLetPub
Indexing the journal's website claims
Google Scholar, EBSCO, ProQuest, Dimensions, CNKI, Baidu, Astrophysics Data System, Naver, OCLC, Portico, CLOCKSS, Semantic ScholarPublisher website
As the journal's website lists them, not checked against each database; for Web of Science editions the records above apply.
Editions, and major and minor categories, are shown separately and never merged into one zone; check which edition your institution uses before you submit or report.
Metrics
Impact metrics and publication volume
Impact
- Impact factor
- 1LetPub ·
- Impact factor (publisher) 2025
- 1Publisher website ·
- 5-year impact factor (publisher) 2025
- 1Publisher website ·
- CiteScore 2026-06
- 1.5LetPub ·
- SJR 2026-06
- 0.27LetPub ·
- SNIP 2026-06
- 0.61LetPub ·
- h-index
- 10LetPub ·
- h-index
- 21OpenAlex ·
- i10-index
- 136OpenAlex ·
- 2-year mean citedness
- 1.01OpenAlex ·
- Self-citation rate
- 20%LetPub ·
- Share of gold OA articles
- 7.3%LetPub ·
Volume
- Articles per year
- 238LetPub ·
- Articles per year (publisher)
- 2,025Publisher website ·
- Downloads per year (publisher) 2025
- 104,700Publisher website ·
Articles by year OpenAlex count · 1,429 in total · the current year is incomplete
| Year | Articles | Open access | Citations |
|---|---|---|---|
| 2026 | 223 | 32 | 37 |
| 2025 | 230 | 22 | 248 |
| 2024 | 140 | 21 | 315 |
| 2023 | 130 | 19 | 357 |
| 2022 | 136 | 11 | 511 |
| 2021 | 103 | 9 | 493 |
Sources count differently and were observed at different times, so each source's own value is kept; "publisher" marks figures from the journal's website.
Review & acceptance
Review time and acceptance
Review time from article dates manuscript dates registered with Crossref · to
117 daysMedian, submission to acceptance · P25–P75 73 days – 170 days
- Acceptance to online
- median 13 days (114 articles)
- Submission to online
- median 139 days
- Sample
- 114 articles with submission and acceptance dates (473 in the window); the latest was accepted on
Only articles that were accepted and published are counted, not the time spent on rejected manuscripts, so this usually runs longer than a publisher's "time to first decision".
Other sources
- Average review time (community reports)
- about 3 monthsLetPub ·
- Average acceptance (community reports)
- 75%LetPub ·
- Submission to first decision
- 6 daysPublisher website ·
- Peer review
- Double anonymous peer reviewPublisher website
Community reports come from authors' own submissions (confidence 0.5) and are not a promise from the journal; for publisher figures, the journal's own definitions apply.
Fees & open access
APC and open-access policy
Hybrid open accessLetPub
A subscription journal in which authors can pay to publish their article open access.
| Source | APC | Fee waiver | License | Observed |
|---|---|---|---|---|
| OpenAlex | USD 3,090 / EUR 2,490 / GBP 2,190 | — | — |
A hybrid journal charges the APC only when the author chooses open access; publishing under the subscription model is usually free.
The journal's website is authoritative for fees; sources were observed at different times and each keeps its own value, without averaging.
Submission
Article types and submission policies (journal website)
What to prepare4 items from the author guidelines
- Abstract
- 150–250 words
- Keywords
- ≥ 4
- Reference style
- Author–date
- Suggested reviewers
- Optional
Policy excerpts from the journal's websiteAI use, Authorship, Conflicts of interest, Data availability, Publication ethics, License & copyright, Open access
- AI use Generative AI Images
Please check Springer’s policy on generative AI images and make sure your work adheres to the principles described therein. Back to top
Source ↗Publisher website ·- Authorship Authorship principles
These guidelines describe authorship principles and good authorship practices to which prospective authors should adhere to. Authorship clarified The Journal and Publisher assume all authors agreed with the content and that all gave explicit consent to submit and that they obtained consent from the responsible authorities at the institute/organization where the work has been carried out, before th…
Source ↗Publisher website ·- Conflicts of interest Disclosures and declarations
All authors are requested to include information regarding sources of funding, financial or non-financial interests, study-specific approval by the appropriate ethics committee for research involving humans and/or animals, informed consent if the research involved human participants, and a statement on welfare of animals if the research involved animals (as appropriate). The decision whether such …
Source ↗Publisher website ·- Data availability Data availability statements
All original research must include a data availability statement. This statement should explain how to access data supporting the results and analysis in the article, including links/citations to publicly archived datasets analysed or generated during the study. Please see our full policy here. If it is not possible to share research data publicly, for instance when individual privacy could be com…
Source ↗Publisher website ·- Publication ethics Compliance with Ethical Standards
To ensure objectivity and transparency in research and to ensure that accepted principles of ethical and professional conduct have been followed, authors should include information regarding sources of funding, potential conflicts of interest (financial or non-financial), informed consent if the research involved human participants, and a statement on welfare of animals if the research involved an…
Source ↗Publisher website ·- License & copyright Copyright
Open Choice articles do not require transfer of copyright as the copyright remains with the author. In opting for open access, the author(s) agree to publish the article under a Creative Commons license. Details of the OA licences offered to authors can be found on the individual journal website, in the journal's How to publish with us guide. Back to top
Source ↗Publisher website ·- Open access Open access publishing
To find out more about publishing your work Open Access in Thalassas: An International Journal of Marine Sciences, including information on fees, funding and licences, visit our Open access publishing page. Back to top
Source ↗Publisher website ·
Excerpts are quoted from the journal's website; "model summary" lines are written by Workers AI and checked against the text. The journal's website is authoritative.
Profile
Publication details and official links
- Publisher
- Springer International Publishing
- Country or region
- SPAIN
- Language
- English
- Frequency
- Semiannual
- Founded
- 2016
- ISSN
- 0212-5919
- Electronic ISSN
- 2366-1674
- Official links
- Journal homepage ↗OpenAlex
- Submission system ↗LetPub
- Author guidelines ↗LetPub
- Special issues ↗Publisher website
FAQ
Frequently asked questions about THALASSAS
What CAS zone is THALASSAS in?
In the 2025 upgraded edition of the CAS Journal Ranking, THALASSAS is in Zone 4 of Biology, and in Zone 4 of the minor category Marine & Freshwater Biology / Oceanography. In the 2026 Xinrui edition it is in Zone 4 of Biology. Zones from different editions, and from major and minor categories, are not interchangeable.
What is the impact factor of THALASSAS?
The latest impact factor listed by LetPub is 1; CiteScore 1.5, h-index 21.
How long does peer review take at THALASSAS?
Based on the dates recorded on 114 articles published between October 2024 and October 2026 (the last 24 months), the median time from submission to acceptance is 117 days (interquartile range 73–170 days); authors report an average review time of about 3 months; the community-reported acceptance is “about 75%”. Article statistics cover accepted papers only, publisher figures follow the journal's own definitions, and community reports come from authors' own submissions; none is a promise from the journal.
What are the manuscript requirements of THALASSAS?
According to the journal's author guidelines: Abstract: 150–250 words; Keywords: ≥ 4; Reference style: Author–date; Suggested reviewers: Optional. A model extracted these from the author guidelines and each was checked against the text; check the latest version on the journal's website before submitting.
Where are the editorial board members of THALASSAS based?
Of the 16 board members whose country the journal's board page names, 2 (about 13%) are in mainland China; the countries named most often are Spain (4), United States (3) and Mainland China (2). Counted from the institutions listed on the board page; for reference only.
Which databases index THALASSAS?
According to LetPub and DOAJ records, THALASSAS is indexed in SCIE and Scopus.
Is THALASSAS open access, and what is the APC?
THALASSAS is a hybrid journal. For open-access publication: APC about USD 3,090.
Sources and updates
The facts on this page come from LetPub, OpenAlex, Publisher website; every figure is tagged with its source and the date it was observed, and conflicting values are kept per source. LetPub source page: view ↗ (archived 2026-08-25). Last updated: .