Recruitment preferences of blue mussel spat (Mytilus edulis) for different substrata and microhabitats in the White Sea (Russia)

Sergey Dobretsov, Martin Wahl

Research output: Contribution to journalArticle

35 Citations (Scopus)

Abstract

We tested the assumption that fouling pressure by the blue mussel Mytilus edulis on a small spatial scale - especially onto a given substratum type - is homogeneous. Artificial substrata were exposed to natural recruitment within and outside different microhabitats. These microhabitats were monospecific patches (diameter in the meter range) in a mixed subtidal community composed of the brown algae Laminaria saccharina, and Chorda tomentosa, the green filamentous alga Cladophora rupestris, and the blue mussel Mytilus edulis. While mussel spat settled in all microhabitats, recruitment was far from homogeneous. Within microhabitats, artificial substrata were preferred over living surfaces. Recruitment also differed between microhabitats exhibiting identical preference gradients on living surfaces and associated artificial substrata: recruitment preference for microhabitats increased in the order Laminaria saccharina <control area (stone or mud) <Chorda tomentosa <Cladophora rupestris <Mytilus edulis. In a second experimental approach on a smaller spatial scale (cm range), we assessed mussel recruitment in the vicinity of identical aliquots of some of the microhabitat-constituting species. Again, Laminaria proved to be of least, Cladophora of highest attractiveness. We conclude that primary settlement of mussel spat is not only influenced by the structure of the substratum (e.g. filamentous forms) but additionally by nearby macroorganisms - presumably by exuded chemical cues as suggested by the second experiment.

Original languageEnglish
Pages (from-to)27-35
Number of pages9
JournalHydrobiologia
Volume445
DOIs
Publication statusPublished - Feb 15 2001

Fingerprint

spit
Mytilus edulis
microhabitat
microhabitats
Russia
Cladophora
mussels
algae
Laminaria
filamentous alga
Phaeophyceae
chemical cue
brown alga
fouling
sea
green alga
mud

Keywords

  • Attraction
  • Blue mussel
  • Fouling
  • Microhabitats
  • Mytilus edulis
  • Recruitment
  • Repellence
  • Small scale variability of colonisation

ASJC Scopus subject areas

  • Aquatic Science

Cite this

Recruitment preferences of blue mussel spat (Mytilus edulis) for different substrata and microhabitats in the White Sea (Russia). / Dobretsov, Sergey; Wahl, Martin.

In: Hydrobiologia, Vol. 445, 15.02.2001, p. 27-35.

Research output: Contribution to journalArticle

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