Resuspension and growth ofOstrea edulis: A field experiment

Grant, Jon E.; Enright, Catherine; Griswold, A.

doi:10.1007/bf01313157

Cited by 66 publications

(29 citation statements)

References 43 publications

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“…Because scallops are mobile active suspension feeders, their epibionts experience changes in environmental conditions. Increased water flow produced by scallop movements and respiratory activity leads to the resuspension of bottom sediments and, thereby, improves the oxygen conditions and food supply of endobionts, including spionid polychaetes (Grant et al 1990, Hentschel 2004). Wisshak & Neumann (2006) also found that the boring Polydora complex similarly takes advantage of organic matter resuspended by echinoid Echinocorys ovata locomotion and feeding activity.…”

Section: Topical Relationshipsmentioning

confidence: 99%

Topical and trophic relationships in a boring polychaete–scallop association: fatty acid biomarker approach

Silina¹,

Zhukova²

2009

Mar. Ecol. Prog. Ser.

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The association between the Japanese scallop Patinopecten yessoensis and the scallopshell-boring polychaete worm Polydora brevipalpa was investigated in the natural environment. Fatty acid analyses were performed on the scallop, polychaete, and potential food materials available in the environment, with the aim of determining the main food sources of these animals and the trophic relationships between species. The scallop and the polychaete showed a similarity in their fatty acid compositions. High concentrations of 20:5n-3 and 14:0, substantial concentrations of 16:2n-4, 16:3n-4, and 16:4n-1, and ratios of 16:1n-7 to 16:0 close to 1 indicated significant contributions of diatoms in the diets of both mollusk and polychaete. Detectable levels of 18:4n-3 suggest that dinoflagellates also contributed to the diet of the animals. The fatty acid markers showed that the scallop and polychaete feed extensively on a mixed, but probably diatom-dominated phytoplankton diet. Additionally, the elevated level of bacterially derived fatty acids and saturated (mainly 18:0) acids in polychaete lipids point to an additional dietary source, detritus and bacteria. Elevated amounts of 22:6n-3 and 18:1n-9 in the scallop digestive gland are indicative of zooplankton consumption. The similarity of the diets is a major determinant of the feeding competition between these species in the community. The decrease in the scallop internal volume concurrent with an increase in the degree of shell occupation by polychaetes suggests a reduction in water-filtering potential by the scallop. Linear regressions of the degree of polychaete occupation against scallop weight and shell height revealed negative relations in both cases. With high levels of shell occupation by polychaetes, the commensal relationship between scallop and polychaete acquires some elements of parasitism. KEY WORDS: Community · Inter-specific relationships · Trophic biology · Fatty acids · Mollusks · Polychaetes Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 394: [125][126][127][128][129][130][131][132][133][134][135][136] 2009 dominant among such organisms. For instance, in muddy bottom areas of Peter the Great Bay of the Sea of Japan, the shell surface of the benthic mobile Japanese scallop Patinopecten (= Mizuhopecten) yessoensis (Jay) is free of epibionts (Silina 2002), and generally only one species (the boring polychaete Polydora brevipalpa Zachs) occurs in association with the scallop shell (Silina 2003(Silina , 2006.The effect of boring worms on oysters, abalones, scallops, clams and mussels have mainly been studied in mariculture conditions. Some researchers have shown that boring worms affect the health and growth of mollusks (Lleonart et al. 2003), whereas others did not find such an effect (Caceres-Martinez & Tinoco-Orta 2001, Calvo et al. 2001, Handley & Bergquist 1997. We investigated the association of the Japanese scallop Patinopecten yessoensis and the polychaete worm Polydora brevipalpa that inhabit...

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Section: Topical Relationshipsmentioning

confidence: 99%

Topical and trophic relationships in a boring polychaete–scallop association: fatty acid biomarker approach

Silina¹,

Zhukova²

2009

Mar. Ecol. Prog. Ser.

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“…The presence of suspended clay (20 mg/L) interferes with the ability of juvenile eastern oysters to preferentially ingest algae, but does not reduce the overall amount of algae ingested (Urban and Kirchman 1992). The summer growth of European oysters (Ostrea edulis) in the field was enhanced at low levels of sediment resuspension and inhibited as sediment deposition increased (Grant, Enright, and Griswold 1990). Sediment chlorophyll in suspension at low levels may act as a food supplement, thus enhancing growth, but at higher concentrations may dilute planktonic food resources and suppress food ingestion.…”

Section: Juvenile and Adult Stagesmentioning

confidence: 99%

Assessment of Potential Impacts of Dredging Operations Due to Sediment Resuspension.

Clarke¹,

Engler²,

Wilber³

2000

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PURPOSE:This technical note summarizes the known biological responses of estuarine and coastal fish and shellfish to suspended sediments and relates these findings to suspended-sediment conditions associated with dredging projects. An objective approach toward evaluation of sediment resuspension impacts is proposed that requires full consideration of (a) the existing state of knowledge concerning the effects of suspended sediments on fish and shellfish, including recognition of the gaps therein, and (b) concentration-exposure duration combinations likely to be encountered by organisms in the vicinity of dredging operations. This note focuses upon the exposure of organisms to sediments in the water column. Effects of deposited sediments will be treated separately.

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“…The threshold is determined by sediment grain size, sediment density and the influence of biota on sediment strength. In a laboratory experiment, Grant et al (1990) demonstrated that low concentrations of suspended sediment, when swirled up 0.1 cm/day, can contribute to nutrient intake and, as such, have a positive effect on the growth speed of Ostrea edulis, but that sediment churned up to 0.8 cm per day reduces growth. Tolerance of sea bed motion of up to 0.8 cm/day is therefore assumed.…”

Section: Sea Bed Motionmentioning

confidence: 99%

Flat oysters on offshore wind farms : opportunities for the development of flat oyster populations on existing and planned wind farms in the Dutch section of the North Sea

Smaal¹,

Kamermans²,

Kleissen³

et al. 2017

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Resuspension and growth ofOstrea edulis: A field experiment

Abstract: Field experiments with Ostrea edulis L. were conducted to examine the effects of resuspension on subtidal oyster growth in a small cove in malifax County, Nova Scotia.

Cited by 66 publications

References 43 publications

Topical and trophic relationships in a boring polychaete–scallop association: fatty acid biomarker approach

Topical and trophic relationships in a boring polychaete–scallop association: fatty acid biomarker approach

Assessment of Potential Impacts of Dredging Operations Due to Sediment Resuspension.

Flat oysters on offshore wind farms : opportunities for the development of flat oyster populations on existing and planned wind farms in the Dutch section of the North Sea

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