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The ecosystem service value of living versus dead biogenic reef
Sheehan, E.V.; Bridger, D.; Attrill, M.J. (2015). The ecosystem service value of living versus dead biogenic reef. Est., Coast. and Shelf Sci. 154: 248-254. https://dx.doi.org/10.1016/j.ecss.2014.12.042
In: Estuarine, Coastal and Shelf Science. Academic Press: London; New York. ISSN 0272-7714; e-ISSN 1096-0015, more
Peer reviewed article  

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  • Sheehan, E.V.
  • Bridger, D.
  • Attrill, M.J., more

Abstract
    Mixed maerl beds (corralline red algae) comprise dead thalli with varying amounts of live maerl fragments, but previously it was not known whether the presence of the live maerl increases the ecosystemservice ‘habitat provision’ of the dead maerl for the associated epibenthos. A ‘flying array’ towed sled with high definition video was used to film transects of the epibenthos in dead maerl and mixed maerlbeds in two locations to the north and south of the English Channel (Falmouth and Jersey). Mixed maerl beds supported greater number of taxa and abundance than dead beds in Falmouth, while in Jersey, mixed and dead beds supported similar number of taxa and dead beds had a greater abundance of epifauna. Scallops tended to be more abundant on mixed beds than dead beds. Tube worms were more abundant on mixed beds in Falmouth and dead beds in Jersey. An increasing percentage occurrence oflive maerl thalli correlated with increasing number of taxa in Falmouth but not Jersey. It was concluded that while live thalli can increase the functional role of dead maerl beds for the epibenthos, this isdependent on location and response variable. As a result of this work, maerl habitat in SE Jersey has been protected from towed demersal fishing gear.

Datasets (2)
  • Sheehan, Emma V.; University of Plymouth School of Marine and Biological Sciences, UK (2015) Species composition and sediment properties of maerl bed habitats in Falmouth Harbour, UK using towed underwater video and diver cores., more
  • University of Plymouth (2021): 2012 University of Plymouth Jersey towed underwater video Epifauna survey. v1.1. Marine Biological Association. Dataset/Samplingevent., more

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