Les bancs de ma├½rl de la r├®gion Bretagne, 1968-2007 (multisource)
Description
This comprehensive map of maerl beds in Brittany is the synthesis of various studies carried out by :
- L. Cabioch (Roscoff Biological Station, 1968),
- P. Hommeril (Geological laboratory of the Rouen Sciences university, 1968),
- P. Giresse (Geological center of the Rouen University) and P. Hommeril (Geological laboratory of the Rouen Sciences university, 1969),
- C. Chass├® and M. Gl├®marec (Universit├® de Bretagne Occidentale, 1976),
- C. R├®ti├¿re (Mus├®um National d'Histoire Naturelle, 1979),
- E. Houlgatte (Bureau d'Etudes g├®ologiques) and C. Augris (Ifremer, 1996),
- A. Ehrhold (Ifremer, 1999),
- J. Grall (Universit├® de Bretagne Occidentale/IUEM, 1999),
- C. Augris, M. Blanchard (Ifremer), C. Bonnot-Courtois (CNRS) and E. Houlgatte (Bureau d'Etudes g├®ologiques, 2000),
- J. Grall and C. Hily (Universit├® de Bretagne Occidentale/IUEM, 2002).
A number of different methods were used to produce these data sets : point observations, (grad and dredge samples, core sample) or side scan sonar surveys.
The whole set of paper maps was processed in 2003, as part of the REBENT programme, i.e. the surveying network for the benthic flora and fauna). This included digitization, labelling and validation. Maerl types are shown in the "ORIG_HAB" attribute field.
See also the "Fiche biologique de synth├¿se sur le ma├½rl" (d├®cembre 2003) : http://www.rebent.org/documents/index.php, under "Fiches biologiques de synth├¿se".
This product is meant to be updated, completed and harmonized as new data are made available.
The harmonization with the EUNIS typology was made in 2006, as part of the REBENT and Interreg-MESH programmes.
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Tags
- france
- western-channel;-bay-of-biscay;-celtic-sea
- rebent