Please use continuous line numbering throughout your manuscript, 12 point font, double spacing and numbered sections. Manuscripts that do not use correct English grammar, spelling and punctuation will be returned to authors without review; if you are not a native English speaker, you should have the text edited by someone who is, before submitting your manuscript. You may also wish to consult a 'How to' book such as Day & Gastel (2011; How to write and publish a scientific paper, 7th edn. Greenwood Press, Santa Barbara, CA).
Section headings
Main sections (IMRAD) should be numbered '1. INTRODUCTION’, ‘2. MATERIALS & METHODS’, etc. Subsections should be numbered as e.g. '2.1. Study site', ‘2.2. Sample collection’, etc. Avoid going beyond third-level subsections (e.g. 3.1.1.).
Verbosity
Please eliminate verbiage; example:
Verbose – 'The speed was chosen because past studies by Miller (1995) and Smith (1998) have shown this to be slightly greater than the maximum sustained swimming speed.'
Not verbose – 'The speed is slightly greater than the maximum sustained swimming speed (Miller 1995, Smith 1998).'
Verbose – 'It has been shown that boat noise affects whale behaviour (Smith 1994).' (and similar phrases such as 'it has been reported/found that', 'it is possible/suspected that', 'results show that')
Not verbose – 'Boat noise influences whale behaviour (Smith 1994).'
Genus and species names
Genus and species names must be in italics; write the genus name in full at first mention in each section (Abstract, Introduction, Materials & Methods, Results, Discussion) and abbreviate whenever mentioned again in the same section. When referring to a species, do not use the genus name alone, unless you have previously defined it that way; be precise when using 'sp.' (singular) and 'spp.' (plural).
At first mention in a section – 'The filter feeding of blue mussels Mytilus edulis was examined'.
After first mention in a section – 'Filter feeding rates of M. edulis increased with increasing temperature.'
Abbreviations
Define abbreviations and acronyms in the Abstract and at first mention in the main text, and thereafter use only the abbreviation / acronym.
Equations and units
Use standard SI units. Relations or concentrations (e.g. mg per l) must be given as 'mg l–1' (not mg/l). Variables are usually italicised (except for Greek letters). Italicisation should be consistent in normal, superscript, and subscripted text. Example of proper spacing: 'p = 0.047, r2 = 0.879' (not 'p=0.047, r2=0.879'); but: 'we studied organisms of size <0.5 µm'
Figures and tables
Figures, tables, and their legends should be self-explanatory; e.g. any abbreviations and acronyms used in figures or tables must be defined there. Tables need to be editable (not embedded as an image). Legends should succinctly describe table/figure content, but not summarize methods or results. Legends must not be embedded in the tables or figures but be presented as regular text above tables or below figures. For table footnotes, use superscripted lower case letters; asterisks can be used to indicate statistical significance (must be defined in the legend).
Please consult 'Figures' for details on figure preparation.
Statistics
In the Materials & Methods, clearly state which statistical analyses you performed and the programme(s) (name and version number as well as reference where applicable) used; report how any relevant assumptions (e.g. for parametric statistics) were tested, the outcome and the solution (e.g. data transformation or an alternate test); state the significance value (alpha) you used. In the Results, clarify which analysis a result is from and report all relevant values (e.g. for most tests, the test-statistic, df value(s) and p-value); ideally, report exact p-values (not levels) to 3 decimal places (exception: p < 0.001 or < 0.0001 for very small values).
Sequence data
Full sequence information is required when molecular methods are used. The sequences of novel primers must be given. Novel nucleotide or protein sequences must be deposited in the GenBank, EMBL or DDBJ databases and an accession number obtained.
Conservation evidence
If your study is testing for an intervention, please check the existing evidence for your intervention at www.conservationevidence.com. State whether or not relevant evidence is available there, and if so, briefly summarise it in your Introduction. Otherwise, search for individual studies testing the action, and summarise any relevant evidence. If Conservation Evidence does not yet cover the topic and no individual studies exist, please state this; you may briefly reference other relevant literature, but this is not essential.
Ethical use of monitoring technology
Where your research involves the use of monitoring devices (e.g. drones, camera traps, audio recorders or other devices) that could — intentionally or not — collect data on people, please take steps to ensure that the research is conducted in a socially responsible manner that does not violate privacy or cause other unnecessary harm. The same applies to the use of data on people’s behaviour or opinions derived from e.g. social media. We encourage you to adopt existing guidelines (summary flyer available here): Sandbrook et al. (2021) Principles for the socially responsible use of conservation monitoring technology and data, Sharma et al. (2020) Conservation and people: towards an ethical code of conduct for the use of camera traps in wildlife research, and Di Minin et al. (2021) How to address data privacy concerns when using social media data in conservation science.
Ocean acidification data reporting
When presenting methods and results reporting ocean acidification the 'Guide to best practices for ocean acidification research and data reporting' must be followed. Specifics for reporting ocean acidification data in scientific journals are outlined in Annex 1 of the 2015 addendum.