The influence of Cu contamination on Nereis diversicolor bioturbation

Fernandes, Sandra; Meysman, Filip J. R.; Sobral, Paula

doi:10.1016/j.marchem.2005.12.002

Cited by 29 publications

(20 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Radionuclides and isotopically labelled particles are usually quantified using alpha or gamma spectrometry (Goldberg & Koide 1962, Thomson et al 2000, Schmidt et al 2007), while metal-doped sediment particles are analyzed using instrumentation neutron activation analysis , and chl a using HPLC (Sun et al 1991, Gérino et al 1998). All visually distinguishable tracers, such as microtektites, glass beads, microtaggants and luminophores, are either classically counted under a dissecting microscope (Glass et al 1973, Wheatcroft 1991, Blair et al 1996, Madsen et al 1997, Fernandes et al 2006), or quantified using automated image acquisition and analysis techniques (Gilbert et al 2003, Solan et al 2004, Maire et al 2006). The quantification of particle tracers within the sediment column can become difficult when their distribution is patchy or when the concentration approaches the detection limit.…”

Section: Particle-tracer Recovery Methodsmentioning

confidence: 99%

“…Isotope labelling and metal doping have, however, rarely been used , possibly due to constraints in the preparation and analysis of the sediment. In contrast, the use of exotic particles such as luminophores and microspheres is much more widespread (Gérino 1990, François et al 1999, Solan et al 2004, Mermillod-Blondin et al 2005, Fernandes et al 2006, Maire et al 2006. Luminophores are at present the most often used exotic particles for assessing sediment reworking.…”

Section: Tracer Characteristics and Inherent Limitationsmentioning

confidence: 99%

“…Usually, luminophore particles and microspheres are visually counted under a microscope, which can be tedious and time consuming (Mahaut & Graf 1987, Gérino 1990, François et al 1999, Ciutat et al 2005, Fernandes et al 2006. However, image analysis techniques have been recently introduced to facilitate this operation (Gilbert et al 2003, Solan et al 2004, Maire et al 2006.…”

Section: Deliberately Introduced Tracersmentioning

confidence: 99%

See 2 more Smart Citations

Quantification of sediment reworking rates in bioturbation research: a review

Maire¹,

Lécroart²,

Meysman³

et al. 2008

Aquat. Biol.

111

View full text Add to dashboard Cite

This review lists and discusses the different methods currently available to assess sediment reworking by benthic infauna. Direct methods are used to estimate the amount of sediment transported by infauna at the sediment-water interface during a given period of time. Particle-tracer methods are used to quantify the vertical distribution of particle tracers within the sediment column. Tracers are classified based on their mode of introduction at the sediment -water interface (i.e. whether they occur naturally or are deliberately introduced at the onset of the experiment). The main characteristics of each method, including modelling aspects, are presented, and their respective advantages and drawbacks are outlined with a particular emphasis on their accuracy, spatial (i.e. both horizontal and vertical) and temporal resolutions. Direct and particle-tracer methods assess different components of sediment reworking. Selection of the most appropriate approach depends on the specific question(s) to be answered, as well as other factors, including the behaviour of the organisms studied, the spatial and temporal scales considered, and whether the experiments are carried out in situ or under controlled laboratory conditions.

show abstract

Section: Particle-tracer Recovery Methodsmentioning

confidence: 99%

Section: Tracer Characteristics and Inherent Limitationsmentioning

confidence: 99%

Section: Deliberately Introduced Tracersmentioning

confidence: 99%

See 1 more Smart Citation

Quantification of sediment reworking rates in bioturbation research: a review

Maire¹,

Lécroart²,

Meysman³

et al. 2008

Aquat. Biol.

111

View full text Add to dashboard Cite

show abstract

“…The amphipods not only incorporated less carbon from N. spumigena, but they also mixed down into the sediment less, indicating a lower bioturbation activity than in the Aphanizomenon treatment. Bioturbation activity can be a sensitive indicator of contaminant effects (e.g., polychaetes exposed to toxins stop reworking the sediment) (Fernandes et al 2006). Decreased bioturbation by M. affinis could influence mineralization rates and reduce the availability of freshly deposited organic matter to sub-surface-feeding organisms (Tuominen et al 1999;van de Bund et al 2001).…”

Section: )mentioning

confidence: 99%

Incorporation and burial of carbon from settling cyanobacterial blooms by deposit‐feeding macrofauna

Karlson

Nascimento

Elmgren

2008

Limnology & Oceanography

View full text Add to dashboard Cite

Abstract-Summer blooms of filamentous, nitrogenfixing cyanobacteria are typical of the Baltic Sea, and recent findings indicate that cyanobacteria may be an important food source for the benthos below the euphotic zone. In a 2-week laboratory experiment, we measured incorporation of cyanobacterial carbon by the depositfeeding amphipod Monoporeia affinis when exposed to 14 Cradiolabeled, natural blooms of cyanobacteria dominated by either the toxic Nodularia spumigena or nontoxic Aphanizomenon sp. Carbon from both cyanobacterial blooms was used, with greater incorporation from Aphanizomenon-dominated bloom material than from N. spumigena, indicating that the latter is less suitable as food. However, neither cyanobacterium supported significant amphipod growth. Also, less cyanobacterial carbon was mixed down in the sediment in the N. spumigena treatment, indicating lower bioturbation activity in this treatment. Long-term effects on feeding and survival remain to be studied, especially for the toxic N. spumigena.

show abstract

“…Fornes et al, 2001;Wheatcroft, 2006;Crusius and Kenna, 2007) or inert tracer particles, such as luminophores (e.g. Solan et al, 2004;Fernandes et al, 2006;Maire et al, 2007). The most popular model is the biodiffusion model, which assumes that Ficks' laws of diffusion apply to bioturbation.…”

Section: Introductionmentioning

confidence: 99%