Field clearance of an intertidal bivalve bed

relative significance of the co-occurring blue mussel Mytilus edulis and Pacific oyster Crassostrea gigas

Bent Vismann, Mark Wejlemann Holm, Jens Davids, Per Dolmer, Morten Foldager Pedersen, Elisa Blanda, Helle Torp Christensen, Pernille Nielsen, Benni Winding Hansen

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Resumé

At an approximately 12000 m2 sheltered intertidal bivalve bed in the western part of the Limfjord, Denmark, the Pacific oyster Crassostrea gigas co-occurs with the blue mussel Mytilus edulis. The relative significance of the impact of the 2 species on phytoplankton density during a tidal cycle was estimated by combining field measurements of clearance rates and modelling of the bivalve bed (topography, biomass distribution, temporal and spatial water coverage and depth). The average density of C. gigas and M. edulis was 35 ± 36 and 1001 ± 685 ind. m-2, respectively. The water volume cleared during a tidal cycle was estimated at 45838 m3, of which C. gigas and M. edulis contributed 9169 and 36669 m3, respectively. Therefore, M. edulis contributed 4 times as much as C. gigas to the bivalve bed’s clearance, and the 2 bivalves were estimated to clear the water volume 1.9 times during each tidal cycle. However, the estimated water column cleared during low tide is overestimated due to phytoplankton depletion. Hence, it is concluded that the bivalve bed clears the water close to 1 time each tidal cycle. This, together with a low dry weight of soft parts, indicates that the bivalve bed, in general, is food-limited.
OriginalsprogEngelsk
TidsskriftAquatic Biology
Vol/bind25
Sider (fra-til)107-119
ISSN1864-7782
DOI
StatusUdgivet - 2016

Citer dette

Vismann, Bent ; Holm, Mark Wejlemann ; Davids, Jens ; Dolmer, Per ; Pedersen, Morten Foldager ; Blanda, Elisa ; Torp Christensen, Helle ; Nielsen, Pernille ; Hansen, Benni Winding. / Field clearance of an intertidal bivalve bed : relative significance of the co-occurring blue mussel Mytilus edulis and Pacific oyster Crassostrea gigas. I: Aquatic Biology. 2016 ; Bind 25. s. 107-119.
@article{4107e4070185498191791a22271211ba,
title = "Field clearance of an intertidal bivalve bed: relative significance of the co-occurring blue mussel Mytilus edulis and Pacific oyster Crassostrea gigas",
abstract = "At an approximately 12000 m2 sheltered intertidal bivalve bed in the western part of the Limfjord, Denmark, the Pacific oyster Crassostrea gigas co-occurs with the blue mussel Mytilus edulis. The relative significance of the impact of the 2 species on phytoplankton density during a tidal cycle was estimated by combining field measurements of clearance rates and modelling of the bivalve bed (topography, biomass distribution, temporal and spatial water coverage and depth). The average density of C. gigas and M. edulis was 35 ± 36 and 1001 ± 685 ind. m-2, respectively. The water volume cleared during a tidal cycle was estimated at 45838 m3, of which C. gigas and M. edulis contributed 9169 and 36669 m3, respectively. Therefore, M. edulis contributed 4 times as much as C. gigas to the bivalve bed’s clearance, and the 2 bivalves were estimated to clear the water volume 1.9 times during each tidal cycle. However, the estimated water column cleared during low tide is overestimated due to phytoplankton depletion. Hence, it is concluded that the bivalve bed clears the water close to 1 time each tidal cycle. This, together with a low dry weight of soft parts, indicates that the bivalve bed, in general, is food-limited.",
author = "Bent Vismann and Holm, {Mark Wejlemann} and Jens Davids and Per Dolmer and Pedersen, {Morten Foldager} and Elisa Blanda and {Torp Christensen}, Helle and Pernille Nielsen and Hansen, {Benni Winding}",
year = "2016",
doi = "10.3354/ab00661",
language = "English",
volume = "25",
pages = "107--119",
journal = "Aquatic Biology",
issn = "1864-7782",
publisher = "Inter-Research",

}

Field clearance of an intertidal bivalve bed : relative significance of the co-occurring blue mussel Mytilus edulis and Pacific oyster Crassostrea gigas. / Vismann, Bent; Holm, Mark Wejlemann; Davids, Jens; Dolmer, Per; Pedersen, Morten Foldager; Blanda, Elisa; Torp Christensen, Helle ; Nielsen, Pernille ; Hansen, Benni Winding.

I: Aquatic Biology, Bind 25, 2016, s. 107-119.

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

TY - JOUR

T1 - Field clearance of an intertidal bivalve bed

T2 - relative significance of the co-occurring blue mussel Mytilus edulis and Pacific oyster Crassostrea gigas

AU - Vismann, Bent

AU - Holm, Mark Wejlemann

AU - Davids, Jens

AU - Dolmer, Per

AU - Pedersen, Morten Foldager

AU - Blanda, Elisa

AU - Torp Christensen, Helle

AU - Nielsen, Pernille

AU - Hansen, Benni Winding

PY - 2016

Y1 - 2016

N2 - At an approximately 12000 m2 sheltered intertidal bivalve bed in the western part of the Limfjord, Denmark, the Pacific oyster Crassostrea gigas co-occurs with the blue mussel Mytilus edulis. The relative significance of the impact of the 2 species on phytoplankton density during a tidal cycle was estimated by combining field measurements of clearance rates and modelling of the bivalve bed (topography, biomass distribution, temporal and spatial water coverage and depth). The average density of C. gigas and M. edulis was 35 ± 36 and 1001 ± 685 ind. m-2, respectively. The water volume cleared during a tidal cycle was estimated at 45838 m3, of which C. gigas and M. edulis contributed 9169 and 36669 m3, respectively. Therefore, M. edulis contributed 4 times as much as C. gigas to the bivalve bed’s clearance, and the 2 bivalves were estimated to clear the water volume 1.9 times during each tidal cycle. However, the estimated water column cleared during low tide is overestimated due to phytoplankton depletion. Hence, it is concluded that the bivalve bed clears the water close to 1 time each tidal cycle. This, together with a low dry weight of soft parts, indicates that the bivalve bed, in general, is food-limited.

AB - At an approximately 12000 m2 sheltered intertidal bivalve bed in the western part of the Limfjord, Denmark, the Pacific oyster Crassostrea gigas co-occurs with the blue mussel Mytilus edulis. The relative significance of the impact of the 2 species on phytoplankton density during a tidal cycle was estimated by combining field measurements of clearance rates and modelling of the bivalve bed (topography, biomass distribution, temporal and spatial water coverage and depth). The average density of C. gigas and M. edulis was 35 ± 36 and 1001 ± 685 ind. m-2, respectively. The water volume cleared during a tidal cycle was estimated at 45838 m3, of which C. gigas and M. edulis contributed 9169 and 36669 m3, respectively. Therefore, M. edulis contributed 4 times as much as C. gigas to the bivalve bed’s clearance, and the 2 bivalves were estimated to clear the water volume 1.9 times during each tidal cycle. However, the estimated water column cleared during low tide is overestimated due to phytoplankton depletion. Hence, it is concluded that the bivalve bed clears the water close to 1 time each tidal cycle. This, together with a low dry weight of soft parts, indicates that the bivalve bed, in general, is food-limited.

U2 - 10.3354/ab00661

DO - 10.3354/ab00661

M3 - Journal article

VL - 25

SP - 107

EP - 119

JO - Aquatic Biology

JF - Aquatic Biology

SN - 1864-7782

ER -