Measuring the Flow of Energy and Matter in Marine Benthic Animal Populations

Meer, Jan Roelof van der; Heip, C.H.R.; Herman, P.M.J.; Moens, Tom; Oevelen, Dick van

doi:10.1002/9780470995129.ch8

Cited by 22 publications

(24 citation statements)

References 395 publications

(341 reference statements)

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“…Static energy budgets have many limitations and shortcomings (Kooijman 2000, Van der Meer et al 2005, but offer the advantage that most parameters can be readily measured. Dynamic energy budget models (Kooijman 2000) offer a more conceptual approach and recognize, for instance, that not all energy budget terms draw upon the entire carbon pool of an animal's body, or have the same body-mass dependence.…”

Section: Marine Nematodes and Energy Flowmentioning

confidence: 99%

3. Ecology of free-living marine nematodes

Moens¹,

Braeckman²,

Derycke³

et al. 2013

Nematoda

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Section: Marine Nematodes and Energy Flowmentioning

confidence: 99%

3. Ecology of free-living marine nematodes

Moens¹,

Braeckman²,

Derycke³

et al. 2013

Nematoda

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“…Nevertheless, bioturbators generally make the sediment less resistant to erosion by loosening it with their activities (Willows, et al, 1998;Ciutat, et al, 2007;Montserrat, et al, 2008;Volkenborn, et al, 2009;van Prooijen, et al, 2011;Rakotomalala, et al, 2015;Cozzoli, et al, 2018a;Joensuu, et al, 2018). The effect of bioturbators on cohesive sediment resuspension impacts the short-and long-term development of coastal morphology (Le Hir, et al, 2007;Orvain, et al, 2012;Winterwerp, et al, 2018), and should hence be taken into account when forecasting the evolution of landscapes and ecosystems Orvain, 2005;Orvain, et al, 2012;Bouma, et al, 2014;Queirós, et al, 2015;Nasermoaddeli, et al, 2018).…”

Section: Accepted Manuscript Introductionmentioning

confidence: 99%

A process based model of cohesive sediment resuspension under bioturbators' influence

Cozzoli

Gjoni

Pasqua

et al. 2019

Science of The Total Environment

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Macrozoobenthos may affect sediment stability and erodibility via their bioturbating activities, thereby impacting both the short-and long-term development of coastal morphology. Process-based models accounting for the effect of bioturbation are needed for the modelling of erosion dynamics. With this work, we explore whether the fundamental allometric principles of metabolic activity scaling with individual and population size may provide a framework to derive general patterns of bioturbation effect on cohesive sediment resuspension. Experimental flumes were used to test this scaling approach across different species of marine, soft-sediment bioturbators. The collected dataset encompasses a range of bioturbators functional diversity, individual densities, body sizes and overall population metabolic rates. Measurements were collected on a range of hydrodynamic stress from 0.02 to 0.25 Pa. Overall, we observed that bioturbators are able to slightly reduce the sediment resuspension at low hydrodynamic stress, whereas they noticeably enhance it at higher levels of stress. Along the whole hydrodynamic stress gradient, the quantitative effect of bioturbators on sediment resuspension can be efficiently described by the overall metabolic rate of the bioturbating benthic communities, with significant variations across the bioturbators' taxonomic and functional diversity. One of the tested species (the gallery-builder Polychaeta Hediste diversicolor) had an effect that was partially deviating from the general trend, being able to markedly reduce sediment resuspension at low hydrodynamic stress compared to other species. By combining this trend with hydrodynamic forces, we were able to produce a process-based model of biota-mediated sediment resuspension.

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“…The daily mortality rate z was calculated as:

z = ln (N_{t} / (N_{t + 1}) / d

with N t being the density of cockles at the first sampling date, N t+1 the density at the subsequent sampling date, and d the number of days elapsed between the two consecutive sampling dates (after Van der Meer et al . ). Linear regression analysis was used to test for significant trends in mortality rates over time.…”

Section: Methodsmentioning

confidence: 97%

The riddle of the sands: how population dynamics explains causes of high bivalve mortality

Callaway

Burdon

Deasey

et al. 2013

Journal of Applied Ecology

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Summary1. Large-scale bivalve mortalities in estuarine and coastal habitats are a major environmental and economic concern. They may have obvious causes such as extremely cold winter temperatures, but in the absence of an apparent chain of cause and effect, a rigorous, objective approach is needed to define a probable set of factors responsible for such mortalities. This study interrogates recurrent mortalities of the cockle Cerastoderma edule L. in the Burry Inlet (South Wales, UK), where the causes of the observed die-offs were obscure. 2. Spatial and temporal patterns in cockle population dynamics were analysed to determine whether mortalities were episodic or continuous, and related to cockle density. Laboratory survival experiments complemented the field studies to indicate the fitness of the cockles. The population dynamics of other species were studied to test for environmental disturbances affecting the entire benthic community. 3. High cockle mortalities occurred throughout the estuary in a specific cohort, namely 1-year-old cockles after their first winter. The mortalities did not appear to be episodic, but happened over the spring to early summer months. Cockle densities played a minor role in the decline. 4. The laboratory experiments showed that cockles from the Burry Inlet had higher survival rates than those collected from other areas at early life stages (0-year class). However, by the time they reached the end of their first year (1-year class), their survival rates declined significantly. Results suggested a physiological weakness in the cohort after the first winter. 5. Other benthic species did not suffer unusual mortalities. 6. Synthesis and applications. We emphasize that (i) interrogating patterns in population dynamics allows us to limit the number of likely causes of high bivalve mortality and generate more specific hypotheses; (ii) extending studies to other benthic species indicates the likelihood of environmental problems that affect the entire ecosystem; (iii) joined-up field and laboratory studies suggested that probable causes of cockle mortality were primarily species-, or even cohort-specific, biological factors; and (iv) well-designed monitoring systems will indicate the population dynamics of the target species on spatio-temporal scales suitable for assessing shifts in the populations, such as unexpected extirpation.

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Measuring the Flow of Energy and Matter in Marine Benthic Animal Populations

Cited by 22 publications

References 395 publications

3. Ecology of free-living marine nematodes

3. Ecology of free-living marine nematodes

A process based model of cohesive sediment resuspension under bioturbators' influence

The riddle of the sands: how population dynamics explains causes of high bivalve mortality

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