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AxIOM: Amphipod crustaceans from insular Posidonia oceanica seagrass meadows

Citation

Michel L, Sturaro N, Heughebaert A (2019). AxIOM: Amphipod crustaceans from insular Posidonia oceanica seagrass meadows. Version 1.4. University of Liège. Sampling event dataset https://doi.org/10.15468/nnjtke accessed via GBIF.org on 2022-05-24.

Description

AxIOM is a sample-based dataset (n = 187 samples) documenting occurrences of amphipod crustaceans associated to Posidonia oceanica seagrass meadows from Mediterranean Islands (Corsica, Sardinia). In total, it contains 10720 records of specimens belonging to 72 species spanning 29 families. Samples were collected over different periods 3 consecutive years, both during the day and during the night. A nested hierarchical sampling design was set up, and multiple sampling methods were combined to ensure a holistic view of the taxocenosis. The dataset package is composed of two data files: one describing sampling events, and the other reporting occurrence data of amphipod crustaceans.

Sampling Description

Study Extent

The dataset 187 sampling events, spanning 3 consecutive years. Sampling took place in two regions: Corsica (Calvi Bay) and Sardinia (Tavolara-Punta Coda Cavallo Marine Protected Area). To acknowledge temporal variation of communities, samples were taken during different periods of the year (November, March, June, July, August) and during both day and night. Sampling stations encompass various levels of environmental protection and anthropogenic pressure, including integral reserve, partial reserve, general reserve , unprotected pristine zone and heavily impacted zone.

Sampling

All sampling was performed by SCUBA diving at depths ranging from 10.4 to 15 metres. 4 complementary methods were used: hand-towed net, litter collection, air-lift and 2 slightly different types of light traps. In both investigated regions, a nested hierarchical sampling design was setup to fully capture the spatial variability of amphipod community structure over multiple scales spanning four orders of magnitude (1 to 1000 metres).

Quality Control

Sampling protocols were standardized to avoid biases. After identification, specimens were randomly selected to be re-examined by either first or last author in order to check identification accuracy. Species names were matched against the authoritative, expert-driven World Register of Marine Species (WoRMS).

Method steps

  1. After collection, all samples were sieved on 400 µm nylon mesh to eliminate sediment and fine particulate organic matter. They were subsequently fixed for >24 hours in a formaldehyde solution (4% in 0.22 µm-filtered seawater). Samples were then sorted to isolate amphipods and transfer them to a preservation solution consisting of 70% ethanol in distilled water to which 1% glycerine was added to prevent evaporation. After identification, specimens were stored in this preservation solution in airtight vials.

Taxonomic Coverages

This dataset comprises 72 amphipod species (including 2 subspecies of Caprella acanthifera) belonging to 51 genera and 29 families.
  1. Animalia
    common name: Animals rank: kingdom
  2. Arthropoda
    common name: Arthropods rank: phylum
  3. Crustacea
    common name: Crustaceans rank: subphylum
  4. Malacostraca
    rank: class
  5. Eumalacostraca
    rank: subclass
  6. Peracarida
    rank: superorder
  7. Amphipoda
    common name: Amphipods rank: order

Geographic Coverages

AxIOM contains samples taken in Posidonia oceanica seagrass meadows from Mediterranean Islands. Two regions were investigated: Corsica (Calvi Bay) and Sardinia (Tavolara-Punta Coda Cavallo marine protected area)

Bibliographic Citations

Contacts

Loïc Michel
originator
position: Postdoctoral researcher
University of Liège
Allee du 6 Aout 15
Liège
4000
BE
Telephone: +3243662836
email: loicnmichel@gmail.com
homepage: https://www.researchgate.net/profile/Loic_Michel
userId: http://orcid.org/0000-0003-0988-7050
Loïc Michel
metadata author
position: Postdoctoral researcher
University of Liège
Allee du 6 Aout 15
Liège
4000
BE
Telephone: +3243662836
email: loicnmichel@gmail.com
homepage: https://www.researchgate.net/profile/Loic_Michel
userId: http://orcid.org/0000-0003-0988-7050
Nicolas Sturaro
metadata author
position: Postdoctoral researcher
University of Liège
Allee du 6 Aout 15
Liège
4000
BE
email: nicolas.sturaro@ulg.ac.be
homepage: https://www.researchgate.net/profile/Nicolas_Sturaro
userId: http://scholar.google.com/citations?user=wfMttwoAAAAJ
André Heughebaert
metadata author
position: Node Manager
Belgian Biodiversity Platform
Av Louise 231 Louizalaan
Bruxelles
1050
BE
Telephone: +3222383796
email: a.heughebaert@biodiversity.be
userId: http://orcid.org/0000-0002-7839-5300
Loïc Michel
administrative point of contact
position: Postdoctoral researcher
University of Liège
Allee du 6 Aout 15
Liège
4000
BE
Telephone: +3243662836
email: loicnmichel@gmail.com
homepage: https://www.researchgate.net/profile/Loic_Michel
userId: http://orcid.org/0000-0003-0988-7050
Nicolas Sturaro
administrative point of contact
position: Postdoctoral researcher
University of Liège
Allee du 6 Aout 15
Liège
4000
BE
email: nicolas.sturaro@ulg.ac.be
homepage: https://www.researchgate.net/profile/Nicolas_Sturaro
userId: http://scholar.google.com/citations?user=wfMttwoAAAAJ
Gilles Lepoint
administrative point of contact
position: F.R.S.-FNRS research associate
University of Liège
Allee du 6 Aout 15
Liège
4000
BE
email: G.Lepoint@ulg.ac.be
homepage: http://labos.ulg.ac.be/oceanologie/gilles-lepoint/
userId: http://orcid.org/0000-0003-4375-0357
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