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Prins, T.C.; Smaal, A.C.; Dame, Richard F.

doi:10.1023/a:1009924624259

Cited by 255 publications

(41 citation statements)

References 67 publications

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“…This is consistent with the hypothesis that MPB development is stimulated by the release of dissolved organic and inorganic matter and biodeposits excreted by the oysters. As such, oysters and MPB would be connected in a local positive feedback loop with oysters "fertilizing" their main food source (Prins et al, 1997;Kasim and Mukai, 2006). Clear MPB seasonal dynamics consistent with the ecosystem location were also shown, and could be associated with variations in MPB patch shape.…”

Section: Discussionmentioning

confidence: 88%

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Satellite remote sensing reveals a positive impact of living oyster reefs on microalgal biofilm development

et al. 2018

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Abstract. Satellite remote sensing (RS) is routinely used for the large-scale monitoring of microphytobenthos (MPB) biomass in intertidal mudflats and has greatly improved our knowledge of MPB spatio-temporal variability and its potential drivers. Processes operating on smaller scales however, such as the impact of benthic macrofauna on MPB development, to date remain underinvestigated. In this study, we analysed the influence of wild Crassostrea gigas oyster reefs on MPB biofilm development using multispectral RS. A 30-year time series combining high-resolution (30 m) Landsat and SPOT data was built in order to explore the relationship between C. gigas reefs and MPB spatial distribution and seasonal dynamics, using the normalized difference vegetation index (NDVI). Emphasis was placed on the analysis of a before-after control-impact (BACI) experiment designed to assess the effect of oyster killing on the surrounding MPB biofilms. Our RS data reveal that the presence of oyster reefs positively affects MPB biofilm development. Analysis of the historical time series first showed the presence of persistent, highly concentrated MPB patches around oyster reefs. This observation was supported by the BACI experiment which showed that killing the oysters (while leaving the physical reef structure, i.e. oyster shells, intact) negatively affected both MPB biofilm biomass and spatial stability around the reef. As such, our results are consistent with the hypothesis of nutrient input as an explanation for the MPB growth-promoting effect of oysters, whereby organic and inorganic matter released through oyster excretion and biodeposition stimulates MPB biomass accumulation.MPB also showed marked seasonal variations in biomass and patch shape, size and degree of aggregation around the oyster reefs. Seasonal variations in biomass, with higher NDVI during spring and autumn, were consistent with those observed on broader scales in other European mudflats. Our study provides the first multi-sensor RS satellite evidence of the promoting and structuring effect of oyster reefs on MPB biofilms.

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Section: Discussionmentioning

confidence: 88%

“…nutrient recycling) and negative (e.g. biomass regulation) impacts on local primary producers (Prins et al, 1997;Troost, 2010).…”

Section: Introductionmentioning

confidence: 99%

Satellite remote sensing reveals a positive impact of living oyster reefs on microalgal biofilm development

et al. 2018

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“…Bivalves also promote the structures of ecosystems with their biomass, skeletons and burrowing activity (Dame 1996) and therefore contribute to the increase in habitat heterogeneity for fishs and invertebrates (Gutiérrez et al 2003, Coen et al 2007). They can also transfer chemical elements and nutrients from the water and seston to other trophic levels and to the sediments, linking benthic and pelagic ecosystems (Prins et al 1998, Newell 2004. Moreover, many bivalve species play important economic roles through fisheries and aquaculture.…”

Section: Introductionmentioning

confidence: 99%

Reproduction and size at first maturity in a Mediterranean exploited <em>Callista chione</em> bivalve bed

et al. 2015

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Summary:The smooth clam Callista chione is an Atlantic-Mediterranean species that is commercially exploited in several European countries. Several aspects of its reproduction were studied in a coastal location of the northwestern Mediterranean as a tool for sustainable fisheries management. Gonadal development was classified into 6 different stages, ranging from immature to degradation of the remaining sexual structures. Results showed that C. chione was able to reproduce throughout the year but a main spawning period occurred in spring. First records of hermaphrodites were found for this species. The mature spermatozoa measured 4. Keywords: gonads; first maturity; hermaphroditism; Veneridae; commercial mollusks. Reproducción y talla de primera madurez en un banco de Callista chione explotado en el MediterráneoResumen: La concha fina Callista chione es una especie atlántico-mediterránea comercialmente explotada en distintos paí-ses europeos. Se estudiaron varios aspectos de su reproducción en una localidad costera del noroeste Mediterráneo como herramienta para la gestión sostenible de su pesquería. El desarrollo gonadal se clasificó en 6 estadios distintos, que engloban desde individuos inmaduros a la degradación de las estructuras sexuales remanentes. Los resultados mostraron que C. chione se podía reproducir durante todo el año con un periodo de máxima puesta en primavera. Se observaron hermafroditas de esta especie por primera vez. Los espermatozoos maduros midieron 4.70±0.66 µm (sin el flagelo) incluyendo un corto acrosoma de 0.75±0.09 µm. La pieza media de los espermatozoos estaba compuesta por 5 mitocondrias. Los ovocitos maduros median entre 60-80 µm de longitud. La talla de primera maduración (SL 50

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“…Although measurements on biodeposit degradation are essential to understand and quantify bivalve-ecosystem interactions, relatively little has been published on bivalve biodeposit quality and specific mineralization and decay rates (see review by McKindsey et al 2011). The ecological importance of biodeposit mineralization is the availability of regenerated nutrients for primary producers (Prins et al 1998). …”

Section: Introductionmentioning

confidence: 99%

Seasonal variation in mineralization rates (C-N-P-Si) of mussel Mytilus edulis biodeposits

et al. 2012

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To determine seasonal variability in mineralization dynamics of mussel biodeposits, we applied a multiple-element approach measuring mineralization rates of carbon (C), nitrogen (N), phosphorus (P) and silicate (Si) during three periods (March, August and November). The results of this study showed that mineralization rates vary between seasons and between elements and that mineralization dynamics were influenced by both temperature and biodeposit nutrient composition. Mineralization rates were 3.2 ± 0.4 mmol C, 0.17 ± 0.04 mmol N, 0.06 ± 0.02 mmol P and 3.91 ± 3.75 mmol Si per gram biodeposit (DW) per day, which represented 24 % of the particulate organic C and 17 % of the particulate organic N in mussel biodeposits. Seasonal variability was largest for Si mineralization with 60–80-fold higher rates measured in March compared to August and November. This difference is most likely related to the difference in biodeposit nutrient composition. It was furthermore shown that the labile fraction of biodeposits became mineralized after, respectively, 18, 9 and 13 days during the experimental periods in March, August and November. This indicates that temperature enhances biodeposit decomposition with approximately 2–3 times faster turnover at a 10 °C temperature interval (Q10).

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Untitled

Cited by 255 publications

References 67 publications

Satellite remote sensing reveals a positive impact of living oyster reefs on microalgal biofilm development

Satellite remote sensing reveals a positive impact of living oyster reefs on microalgal biofilm development

Reproduction and size at first maturity in a Mediterranean exploited <em>Callista chione</em> bivalve bed

Seasonal variation in mineralization rates (C-N-P-Si) of mussel Mytilus edulis biodeposits

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