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Author Guidelines


Latin American Journal of Aquatic Research - LAJAR is an “Open Access” journal that publishes in English language, original research articles, reviews and short communications on aquatic science, which contain results of research conducted in aquaculture or in oceanic and coastal marine waters of Latin America.

Types of manuscripts

LAJAR publishes research articles, review articles and scientific short communications.

Research Article. An article should contain an abstract (250 words maximum) and keywords, followed by a text with a defined structure, details of which are given below. Preferably, the manuscript should not exceed 30 pages, including figures and tables.

Review Article. Reviews should contain an abstract (250 words maximum) on the state of knowledge of a specific topic of research and keywords, followed by a continuous freestyle text. This manuscript should not exceed 30 pages, including figures and tables.

Short Communication. These are short papers on a specific topic that describe preliminary results, new findings or new methodologies. Communications must include an abstract (200 words maximum) and keywords. Different segments of the paper (introduction, methodology, results and discussion) should be written continuously in a single section. Length of the manuscript should be under 10 pages, including figures and tables.

Article structure

Structure of the manuscript should follow the following order:

Title: Brief and descriptive. A running head of no more than 50 characters should be provided.

Author names and affiliation: Indicate name, last name (paternal only, when applicable), affiliation, city, country, ORCID code and e- mail address of the authors.

Abstract: Must contain a maximum of 250 words, indicating purpose, main results or findings and conclusions presented in the manuscript.

Keywords: Maximum of six, arranged in order of importance.


Materials and Methods



Conclusions (optional)


Citations: Consider only published works or in press. References must be ordered chronologically indicating first author's last name and year of publication (e.g. Muñoz et al. 2009, Alvarez 2010, Johnson & Smith 2013, Palmer 2015a,b).

References: Include only documents mentioned in the text, references must be organized alphabetically based on the first author's last name. In the case of two or more authors, initials must be indicated after their last names; use a comma to separate each author.

Examples of different formats for different types of frequently used references:

a)  References of articles cited in the text must indicate: author(s), year of publication, article title, complete name of the journal, volume and page numbers. Add doi number if pertinent, to facilitate internet search.

Huang, D. & Roy, K. 2013. Anthropogenic extinction threats and future loss of evolutionary history in reef corals. Ecology and Evolution, 3: 1-10. doi: 10.1002/ece3.527

Andrade,I., Sangrá, P., Hormazábal, S.E. & Correa-Ramírez, M.A. 2014. Island mass effect in the Juan Fernández Archipelago (33°S), Southeastern Pacific. Deep-Sea Research I, 84: 86-99. doi: 10.1016/j.dsr.2013.10.009

b) Book references must indicate: Author(s), year of publication, book title, editorial, city.

Randall, J.E. & Cea, A. 2011. Shore fishes of Easter Island. University of Hawaii Press, Honolulu.

c) Articles published in books must indicate: Author(s), year of publication, article title, book title, editorial, city, number of pages.

Andersen, R.A. & Kawachi, M. 2005. Traditional microalgae isolation techniques. In: Andersen, R.A. (Ed.). Algal culturing techniques. Academic Press,New York, pp. 83-89.

d) Articles published on the Internet must indicate: Author(s), year of publication, article title, full URL, date of last review.

R Core Team. 2016. R: a language and environment for statistical computing. R Foundation for Statistical Computing. []. Reviewed: June 12, 2018.

e) Thesis references must indicate: author(s), year of publication, thesis title, thesis academic degree, university/institute, city.

Hall, A.E. 2015. Top-down control, trophic interactions, and the importance of predatory fishes on coral reefs. Ph.D. Thesis, James Cook University, Queensland.

Figures and tables

Graphics, maps, schemes, drawings or photographs must be referred to as Figure, abbreviated in the text as Fig.

Figures should be numbered consecutively using Arabic numerals; captions should be self-explanatory. Texts and symbols inside a figure must be written in Arial characters and have a size that guarantees legibility in case of downsizing. If the figure includes more than one image, these must be characterized with lowercase letters (e.g. a, b, c, etc.). Figures should be preferably sized as close to the final version as possible. Figures can be a maximum of 15 cm wide by 21 cm high (including caption).

Images (photographs) must be in JPG or PNG format (black and white or color) and be in high resolution (keep to a minimum of 300 dpi) considering an adequate range of tones and contrasts.

Tables in Excel or Word must be numbered consecutively with Arabic numerals. Captions should be self-explanatory. The heading of each column must express clearly its content and measurement units.


- Manuscripts are to be submitted exclusively online on the Journal’s website ( (Online Submissions). The manuscript must be written in English, in Microsoft Word format, in Times New Roman size 12, with 1.5 spacing, on letter size paper.

- Tables and figures should be included at the end of the text.

- Authors should suggest a minimum of six potential reviewers of recognized competence in the area of knowledge of the proposed, indicating name, e-mail address, name of the institution and country. The reviewers should not be from the same institution where the authors of the article are from.

- Authors must ensure that any submitted article has not been published previously and is not under consideration for publication elsewhere.

Research data

Please submit an excel file with the data that supports your article or the link to the dataset.

Review Process

Manuscripts are to be submitted exclusively online on the Journal’s website ( Reception of articles will be acknowledged by e-mail to the corresponding author. Before its acceptance, all submitted manuscripts will be assessed by the editor and co-editor in order to determine if they are suitable for the Journal. Documents considered as adequate will enter an evaluation process led by associate editors with recognized competence in the proposed area of knowledge, considering the opinion of at least two or three international researchers, considered experts in the proposed subject of the manuscript.

Manuscripts will be evaluated as excellent, good, regular or poor, according to the following aspects:

- Originality.

- Relevance to scientific knowledge in aquatic research.

- Formal Aspects: Correct and understandable language. Title and abstract should be sufficiently informative. References must be properly cited.

- Background: Theoretical background is adequate, with clear hypothesis and objectives.

- Methodology: Materials and methods are appropriate and adequately described.

- Results: Data is concise and sufficient. The use of statistics analysis is appropriate.

- Figures: Figures and/or photographs are clear and of good quality, and include only data essential for its comprehension.

- Discussion: Is clear and correctly interpreted.

- References: 70% or more of the references are up to date.

The reviewed article may be: accepted; acceptable with minor changes; acceptable with major changes; or rejected (doesn’t meet journal’s editorial standards, preliminary results, plagiarism).

If the paper is accepted with minor o major changes, authors will be informed and will have a maximum of 60 days to reply all observations and return a new, corrected version of the manuscript to the corresponding associate editor for a final review.


Once accepted for publication, authors must forward the final text with all corrections made and accepted by the assigned associate editor.


Proofs will be sent by the editor to the corresponding author for a final review. Final correction of the manuscript is the exclusive responsibility of the corresponding author and any modification must be informed to the editor of the journal.


Papers accepted are subjected to a publication charge of US$450.00 for Review and Research Articles, and US$350.00 for Short Communications. This amount must be paid once the corresponding author has received the print proofs.


LAJAR subscribes to the CRediT authorship initiative (Contributor Roles Taxonomy) which is an initiative of CASRAI (Consortia Advancing Standards in Research Administration) that aims to differentiate and recognize the contribution of each author who signs an academic research article. 

This taxonomy distributes participation roles into 14 typologies through which an author obtains recognition in the publication, identifying themselves in one of the following categories: 

  1. Conceptualization - Ideas, formulation or evolution of research objectives. 
  2. Data curation - Management activities to annotate (produce metadata), clean data and maintain research data (including software code, where necessary to interpret the data itself) for initial use and subsequent reuse. 
  3. Formal analysis - Application of statistical, mathematical, computational or other techniques to record, analyze or synthesize study data. 
  4. Funding acquisition - Acquisition of financial support for the project leading to publication. 
  5. Investigation - Execution of research, specifically performing experiments or collecting data/evidence. 
  6. Methodology - Development or design of methodology. 
  7. Project administration - Management and coordination responsibility for planning and conducting research activity. 
  8. Resources - Provision of study materials, reagents, materials, patients, laboratory samples, animals, instrumentation, computing resources or other analysis tools. 
  9. Software - Programming, software development, computer program design, implementation of computer code and supporting algorithms, testing existing code components. 
  10. Supervision - Oversight and leadership responsibility in planning and conducting research activities, including external mentoring to the core team. 
  11. Validation - Verification, either as part of the activity or separately, of the overall replicability/reproducibility of results/experiments or other research products. 
  12. Visualization - Preparation, creation or presentation of published work, specifically visualization/presentation of data. 
  13. Writing - original draft - Preparation, creation or presentation of published work, specifically writing the initial draft (including substantive translation). 
  14. Writing - review & editing - Preparation, creation or presentation of published work by members of the original research group, specifically critical review, comment or revision - pre- or post-publication stages should be included.


Submission Preparation Checklist

As part of the submission process, authors are required to check off their submission's compliance with all of the following items, and submissions may be returned to authors that do not adhere to these guidelines.

  1. I have the Chief-Editor presentation letter, signed by corresponding autor.
  2. I have the 6 experienced reviewer names required (Name, address, and email), NOTE: you must use the field below entitled "Coments to editor / Reviewer proposal" at the end of this page.
  3. The file is in MS Word file type, interlined text at 1.5, Font: Times New Roman 12 pt.
  4. I have the short title in the main language of the article.
  5. The article title is included in English.
  6. The article abstract length is under 250 words, in English, and highlights results and obtained discoveries.
  7. I added the 6 keywords required in English ordered by relevance.
  8. Article contents are ordered in the following chapters, i.e.

    • Introduction
    • Materials and methods
    • Results
    • Discussion
    • Conclusions (optional)
    • Aknowledgement
    • References
  9. Tables are included in Excel or Word File Type, and their leyends are in English.
  10. Figures have 300 dpi as a minimum resolution, placed at the end of the article text with their leyends in English written beneath it, and in the following file types; CorelDRaw, Excel, Surfer, Sigma plot, JPG or PNG.
  11. I accept to pay US$450.00/350.00 once upon I receive the galley proofs of my article.

Privacy Statement

Names and email addresses entered in the journal’s site will be used exclusively for the stated purposes of this journal and will not be made available for any other purpose or to any other site.