This README file was generated on 2024-05-02 by Louise C. Flensborg.

GENERAL INFORMATION

1. Title of Dataset: Scale-dependent effects of biodiversity and stability on marine ecosystem dynamics

2. Author Information

A. Principal Investigator Contact Information

Name: Louise C. Flensborg

Institution: National Insitute for Aquatic resources - Denmark Technical University

Address: Kgs. Lyngby, Denmark

Email: loufl@aqua.dtu.dk

3. Date of data collection (single date, range, approximate date): 1982-2019

4. Geographic location of data collection: Baltic Sea, Bay of Biscay, North Sea, Scotish Sea, French Channel, Outer Irish Sea and Inner Irish Sea.

SHARING/ACCESS INFORMATION

1. Licenses/restrictions placed on the data: CC0 1.0 Universal (CC0 1.0) Public Domain

2. Links to publications that cite or use the data:

Louise C. Flensborg, Marcel Montanyès, Antoni Vivó Pons, Fernanda Carolina Da Silva1, Martin Lindegren (2024) "Scale-dependent effects of biodiversity and stability on marine ecosystem dynamics"

3. Links to other publicly accessible locations of the data: (https://www.ices.dk/data/data-portals/Pages/DATRAS.aspx)(https://doi.pangaea.de/10.1594/PANGAEA.900866)

4. Links/relationships to ancillary data sets: None

5. Was data derived from another source? No

6. Recommended citation for this dataset:

Louise C. Flensborg, Marcel Montanyès, Antoni Vivó Pons, Fernanda Carolina Da Silva1, Martin Lindegren (2024) "Scale-dependent effects of biodiversity and stability on marine ecosystem dynamics"

DATA & FILE OVERVIEW

1. File List:

A) ICESsurvey10Aug_withq.RData

B) TraitCollectionFishNEPacifiContShelf.txt

c) Ecoregions

Script folder

d) Data_preparation

e) PCA_Dissimilarity_analysis

r) 3-plots

Ecoregions.txt - The different scales used in the study

2. Relationship between files, if important: The file list contains the raw data used in the analyses performed in the scripts.

3. Additional related data collected that was not included in the current data package: None

4. Are there multiple versions of the dataset? No

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DATA-SPECIFIC INFORMATION FOR: ICESsurveyAug10.RData

1. Number of variables: 17 variables

2. Number of cases/rows: 448976

3. Final variable List:

• Statrec: ices rectangles
• HaulID: Numerical identifier for each unique sampling station
• Survey: Area of ICES survey
• Gear: Trawl gear used for the survey
• year: sampling year (1982-2019)
• month: sampling month
• Shootlon: longitude value (decimal degrees)
• Shootlat: latitude value (decimal degrees)
• Area.swept: Swept area in km²
• depth: sampling depth at each station (m)
• Family: Species taxon
• Species: all species and genus names included in the analysis
• Wgth: wet weight (g) of each taxon found in that specific sample
• Wgthcpue: wet weight (g) of each taxon found in that specific sample corrected with CPUE
• Wgth_q :wet weight (g) of each taxon found in that specific sample corrected for gear
• Wtcpue_q: wet weight (g) of each taxon found in that specific sample corrected for gear abd CPUE
• Quarter: Quarter of the year

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DATA-SPECIFIC INFORMATION FOR: TraitCollectionFishNEPacifiContShelf.txt

Data structure: The data is delimited by tab characters (\\t), and commas (,) are used as decimal separators.

Raw trait modalities information for all species.

1. Number of variables: 12

2. Number of cases/rows: 6214

3. Variable List: In this case each column accounts for a specific trait

selected traits description:

• Family - species family
• Genus - species genus
• Species - species name
• Taxon - species taxon
• Offspring size (mm) - Offspring size represents the egg diameter for fish, length of egg case for skates and rays or body length of a new-born pup for sharks
• Age at maturity (year) - Age at which 50% of the population becomes mature
• Fecundity (No. Eggs /year) - number of eggs or offspring produced per year by female
• Growth coefficient (1/year) - Von Bertalanffy growth coefficient K
• Maximum length (cm) - Maximum species length recorded
• Feeding mode - Herbivorous, Benthivorous, Generalist, Planktivorous, Piscivorous
• Body shape - Compressiform, Short and/or deep, Flat, Elongated, Fusiform, Eel-like
• Fin shape - Truncate, Rounded, Heterocercal, Forked, Lunate, Pointed

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DATA-SPECIFIC INFORMATION FOR: Ecoregions.txt

Raw spatial information in 3 different scales. rectangle, survey and ecoregion

1. Number of variables: 3

2. Number of cases/rows: 584

3. variable list:

• rectangle - ICES Statistical Rectangles (1°longitude by 0.5° latitude grid cells, ~6000 km2)
• survey - intermediate scale (rectangles of 2° in longitude by 1° in latitude ~24000 km2)
• ecoregion - ICES ecoregions and advisory areas - seven areas (North Sea(NS-IBTS),Scottish West Coast(SWC-IBTS), Bay of Biscay(EVHOE), Ireland(IE-IGFS), East English Channel(FR-CGFS), Irish Sea(NIGFS), Baltic Sea(BITS) )