﻿This site-environmental-readme.txt file was generated on 2026-03-24 by Roel Lammerant


DATA-SPECIFIC INFORMATION FOR: site-environmental.xlsx

## Data processed by Nishant Nishant, Tvärminne Zoological Station, Finland - in collaboration Roel Lammerant, Jenna Hölttä, Janina Pykäri, Anna Villnäs, Sofia Wikström, Alf Norkko & Camilla Gustafsson.
## Correspondence concerning these data should be directed to Roel Lammerant (Roel.lammerant@outlook.be).

## Description: 
Spatial field survey in August 2023, where macrophyte material was destructively harvested at 20 sites along a salinity and exposure gradient in the Pojo-Hanko archipelago, Finland.   
Salinity data was collected during site scouting and sediment characteristics were analyzed using TGA701 Thermo-gravimetric Analyzer for LOI and a particle size analyzer for the sand and clay fraction.

Data file:

1. Number of variables: 
6

2. Number of cases/rows: 
20

3. Variable List: 
<list variable name(s), description(s), unit(s)and value labels as appropriate for each>
# site - Site number combined with exposure category
# exposure - Exposure categories (Exposed, Semi, Sheltered and Pojo)
# salinity - Salinity of surface water in ppt 
# loi - Organic matter content as loss on ignition of the top 1cm of sediment in %
# sand - Sand content of the top 1cm of sediment in %
# clay - Clay content of the top 1cm of sediment in %

4. Missing data codes: 
<list code/symbol and definition>
none

5. Specialized formats or other abbreviations used: 
