Types of paper 

1-   Research Papers should report the results of original research. The material should not have been previously published elsewhere. Articles are expected to contribute new information (e.g. novel methods of analysis with added new insights and impacts) to the knowledge base in the field, not just to confirm previously published work.
2- Review Articles can cover either narrow disciplinary subjects or broad issues requiring interdisciplinary discussion. They should provide objective critical evaluation of a defined subject. Reviews should not consist solely of a summary of published data. Evaluation of the quality of existing data, the status of knowledge, and the research required to advance knowledge of the subject are essential.

3- Short Communications are used to communicate results that represent a major breakthrough or startling new discovery and which should therefore be published quickly. They should not be used for preliminary results. Papers must contain sufficient data to establish that the research has achieved reliable and significant results.
4- Technical Papers should present new methods and procedures for either research methodology or culture-related techniques.

Declaration of interest

All authors are requested to disclose any actual or potential conflict of interest including any financial, personal or other relationships with other people or organizations that could inappropriately influence, or be perceived to influence, their work.

Changes to authorship

Authors are expected to consider carefully the list and order of authors before submitting their manuscript and provide the definitive list of authors at the time of the original submission. Any addition, deletion or rearrangement of author names in the authorship list should be made only before the manuscript has been accepted and only if approved by the journal Editor. To request such a change, the Editor must receive the following from the corresponding author:

(a) the reason for the change in author list and

(b) written confirmation (e-mail, letter) from all authors that they agree with the addition, removal or rearrangement.

In the case of addition or removal of authors, this includes confirmation from the author being added or removed.

Only in exceptional circumstances will the Editor consider the addition, deletion or rearrangement of authors after the manuscript has been accepted. While the Editor considers the request, publication of the manuscript will be suspended.

Language 

Text should be written in good English (American or British usage is accepted, but not a mixture of these).

Referees 

Please submit the names and e-mail addresses of at least two potential referees.

Use of word processing software 

It is important that the file be saved in the native format of the word processor used. The text should be in single-column format. Keep the layout of the text as simple as possible. Most formatting codes will be removed and replaced on processing the article.

Article structure

Abstract 
A concise and factual abstract is required. The abstract should state briefly the purpose of the research, the principal results and major conclusions. An abstract is often presented separately from the article, so it must be able to stand alone. For this reason, References should be avoided. Also, non-standard or uncommon abbreviations should be avoided. The abstract should be not longer than 400 words.

Key words 

Immediately after the abstract, provide a maximum of 4-6 keywords, avoiding general and plural terms. Be sparing with abbreviations: only abbreviations firmly established in the field may be eligible. These keywords will be used for indexing purposes.

Introduction 

State the objectives of the work and provide an adequate background, avoiding a detailed literature survey or a summary of the results.

Materials and methods 

Provide sufficient detail to allow the work to be reproduced. Methods already published

should be indicated by a reference: only relevant modifications should be described.

Results 

Results should be clear and concise.

Discussion 

This should explore the significance of the results of the work, not repeat them. Avoid extensive citations and discussion of published literature.

Conclusions 

The main conclusions of the study may be presented in a short Conclusions section, which may stand alone or form a part of the Discussion.

Arabic summary

Preparation of manuscripts

Authors should consult a recent issue of Egyptian Journal of Aquatic Biology and Fisheries for details of style and presentation. If their manuscript does not follow the format of the Journal, it will be returned to them unreviewed. Manuscripts must be double-spaced throughout; all pages must be numbered, including tables, figure legends and reference lists. Use a font size ≥ 12 Times New Roman. Do not save files in PDF (portable document format) format. Title page (as a separate page), Abstract and Key Words (as a separate page), Introduction, Materials and Methods, Results, Discussion (a combined Results and Discussion is not acceptable and Conclusions as a heading is only acceptable in Review Papers), Acknowledgements, References, Tables (with captions), Figure captions, Arabic summary. All Latin words should be in italics.  Do not duplicate information in tables and figures, or vice versa or in text and figures. Do not repeat table headings and figure legends in the text. Punctuation should be consistent and only a single space inserted between words and after punctuation. Text should be typed without end of line hyphenation, except for compound words. Names of genera, species and subspecies must be typed in italics followed by the authority when the name is first mentioned in the text. Generic names should be written out when first mentioned in the text then their abbreviations are used with the specific name.

Essential title page information

• Title. Concise and informative. Avoid abbreviations and formulae where possible.
•Author names and affiliations.  The family name (surname) followed by the initials of forenames, Present the authors' affiliation addresses (where the actual work was done) below the names. Indicate all affiliations with a lower-case superscript letter immediately after the author's name and in front of the appropriate address. Provide the full postal address of each affiliation, including the country name and, if available, the e-mail address of each author.

• Corresponding author. Clearly indicate who will handle correspondence at all stages of refereeing and publication, also post-publication. Ensure that phone numbers (with country and area code) are provided in addition to the e-mail address and the complete postal address. Contact details must be kept up to date by the corresponding author.

Acknowledgements 

The acknowledgements in a separate section at the end of the article before the references and do not, therefore, include them on the title page, as a footnote to the title or otherwise. List here those individuals who provided help during the research (e.g., providing language help, writing assistance or proof reading the article, etc.).

Formatting of funding sources 

List funding sources in this standard way to facilitate compliance to funder's requirements:

Funding: This work was supported by the National Institutes of Health [grant numbers xxxx, yyyy]; the Bill & Melinda Gates Foundation, Seattle, WA [grant number zzzz]; and the United States Institutes of Peace [grant number aaaa].

Nomenclature and units 

Follow internationally accepted rules and conventions: use the international system of units (SI).

Math formulae 

Please submit math equations as editable text and not as images. Present simple formulae in line with normal text where possible and use the solidus (/) instead of a horizontal line for small fractional terms, e.g., X/Y. In principle, variables are to be presented in italics.

Give the meaning of all symbols immediately after the equation in which they are first used. In chemical formulae, valence of ions should be given as, e.g. Ca²⁺ and not Ca⁺⁺. Isotope numbers should precede the symbols, e.g., ¹⁸O. The repeated writing of chemical formulae in the text is to be avoided where reasonably possible; instead, the name of the compound should be given in full. Exceptions may be made in the case of a very long name occurring very frequently or in the case of a compound being described as the end product of a gravimetric determination (e.g., phosphate as P₂O₅).

llustrations

Photographs should be selected only to illustrate something that cannot adequately be displayed in any other manner. Magnification should be given in actual terms and all stains used should be described in full. Number figures consecutively using Arabic numerals [Fig. 1, 2, etc.: subdivide by (a), (b), etc.], in order of their mention in the text. A fully descriptive caption must be provided for every figure and the complete list of captions typed together on a separate page. Captions must not be included on the figures. All relevant information, e.g. keys to the symbols and formulae, should be included in the caption. Please make sure that artwork files are in an acceptable format (TIFF or  JPEG) and with the correct resolution. The Color or grayscale photographs should be in TIFF (or JPEG) format and keep to a minimum of 300 dpi. 

Tables

Number consecutively in Arabic numbers, in the order of their mention in the text. Captions for tables should be typed directly above each table, not on a separate page. Footnotes to tables should be indicated by superscripts and typed at the bottom of the tables. Tables and figures must ‘stand alone’ and so all abbreviations must be defined in the figure captions and as footnotes in the tables. Tables, figures and figure captions should be saved in separate files from the main text of the manuscript.

References

Citation in text 

Please ensure that every reference cited in the text is also present in the reference list (and vice versa). Unpublished results and personal communications are not recommended in the reference list. Citation of a reference as 'in press' implies that the item has been accepted for publication.

Reference formatting 

The reference style used by the journal is author(s) name(s), year of publication, journal title/book title, chapter title/article title, volume number/book chapter and the pagination must be present. Use of DOI is highly encouraged. Note that missing data will be highlighted at proof stage for the author to correct. If you do wish to format the references yourself they should be arranged according to the following examples:

Reference style 

In Text: All citations in the text are written in bold and should refer to: 

1. Single author: the author's surname (without initials) and the year of publication Ex: 'as demonstrated by Emam (2010a, 2010b).

2. Two authors: both authors' names and the year of publication Ex: (Emam & Saad, 2012).

3. Three or more authors: first author's name followed by 'et al. (italic)' and the year of publication Ex: Emam et al. (2010) have recently shown ....' 

Citations may be made directly (or parenthetically). Groups of references should be listed chronologically. 

In List: References should be arranged first alphabetically and then further sorted chronologically if necessary. More than one reference from the same author(s) in the same year must be identified by the letters 'a', 'b', 'c', etc., placed after the year of publication. 
Examples: 

Reference to a journal publication: 

Pizzi C, Caraglia M, Cianciulli M, Fabbrocini A, Libroia A, Matano E, Contegiacomo A, Del Prete S, Abbruzzese A, Martignetti A, et al. 2002. Low-dose recombinant IL-2 induces psychological changes: monitoring by Minnesota Multiphasic Personality

Reference to a book: 

Strunk, Jr. W. and White, E.B. 2000.The Elements of Style, fourth ed. Longman, New York.

Reference to a chapter in an edited book:

Mettam, G.R. and Adams, L.B. 2009. How to prepare an electronic version of your article. In: "Introduction to the Electronic Age." Jones, B.S.& Smith, R.Z. (Eds.).E-Publishing Inc., New York, pp. 281–304.

After acceptance

Online proof correction 

Corresponding authors will receive an e-mail with allowing annotation and correction of proofs online. The environment is similar to MS Word: in addition to editing text, you can also comment on figures/tables and answer questions from the Copy Editor.

It is important to ensure that all corrections are sent back to us in one communication. Please check carefully before replying, as inclusion of any subsequent corrections cannot be guaranteed. Proof reading is solely your responsibility.

Publication fees

For Egyptian Authors: Authors should pay 1000 Egyptian pounds including online publishing and 10 offprints (for 15 text pages). There are an extra 40 Egyptian pounds for each additional text page and 100 Egyptian pounds for the coloured plate.

For Authors from outside Egypt:

The article costs $ 100 including online publishing and 10 offprints (15 text pages). There are an an extra $ 10 for each additional page.

Payment methods:

1- After contact with journal editor who will tell you the cost that you can pay by swift to account number: 14900100805108 Bank Masr, Ain Shams University branch, Abbassia, Cairo, Egypt. 

2-   By direct pay to the editorial office of the journal at the Zoology Department, Faculty of Science, Ain Shams University, Egypt. 

The main author has to sign the copyright form that will be sent by email to him and return it back to Editor in-Chief after scanned.