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Rodríguez, Pilar; Martinez-Madrid, Maite; Arrate, Jesús Angel; Navarro, Enrique

doi:10.1023/a:1013199507341

Cited by 65 publications

(19 citation statements)

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“…Brinkhurst, Chua, & Kaushik, 1972;McCall & Fisher, 1980). Tubificid worms feed selectively on fine particles; they ingest them at depth in sediments and egest faecal pellets rich in water content and organic matter at the sediment surface (McCall & Tevesz, 1982;Rodriguez, Martinez-Madrid, Arrate, & Navarro, 2001). Several field and laboratory experiments highlighted that worms modify the sediment stratigraphy by depositing faecal pellets in the top sediment layer, which are prone to resuspension by water current (Ciutat, Weber, Gérino, & Boudou, 2006;Li et al, 2016;McCall & Tevesz, 1982;Zhang, Shang, He, You, & Fan, 2014).…”

Section: Introductionmentioning

confidence: 99%

Influence of tubificid worms on sediment structure, benthic biofilm and fauna in wetlands: A field enclosure experiment

et al. 2018

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Bioturbation activities of tubificid worms play a major role in nutrient cycling and microbial processes occurring at water–sediment interfaces of freshwater environments. Nevertheless, evidence of significant contributions of worms to ecosystem functioning largely arises from experiments performed at laboratory scales, because studies exploring the role of tubificid worms in the field are scarce. Therefore, this study aimed to test the influence of tubificid worms on benthic habitat structure and functioning in field experiments. According to literature, we predicted that feeding activities of tubificid worms would increase the percentage of clay and silt particles, the bacterial growth and microbial activities in the top sediment layer. The experiment was performed at the water–sediment interface of a shallow wetland. Enclosures with and without addition of the tubificid worm Limnodrilus hoffmeisteri were used to quantify the influences of tubificid worms on the sedimentary habitat (sediment grain size distribution, water‐filled porosity using microtomography), the biofilm (algal biomass, bacterial abundance, total organic carbon and total nitrogen, microbial enzymatic activity, photosynthetic activity and efficiency of the photosystem II) and the benthic fauna. Measures were performed before worm addition and at the end of the experiment. After 6 weeks, the proportion of fine sediment particles (<63 μm) and the water‐filled porosity were significantly modified by the bioturbation activities of tubificid worms. The bacterial abundance was stimulated by twofold, the microbial hydrolytic activity by +35% and the algal biomass by +40%. The field enclosures with and without L. hoffmeisteri showed differences in benthic invertebrate assemblages, especially for nematodes that were excluded from enclosures with worms. Our results indicate that bioturbation mechanisms and impacts reported from laboratory experiments with tubificid worms are not only significant at a field scale, but also highlight unpredicted interactions with other benthic organisms (autotrophic compartment of the biofilm and invertebrates).

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Section: Introductionmentioning

confidence: 99%

Influence of tubificid worms on sediment structure, benthic biofilm and fauna in wetlands: A field enclosure experiment

et al. 2018

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“…Tubificidae oligochaetes were also a common component in rivers and beaches, with higher densities in rivers. This result is probably related to higher concentrations of fine grains, which commonly favor populations of those worms (RODRIGUEZ et al, 2001). Regarding environmental impacts, oligochaetes had greater participation in the abundance of rivers and beaches in sectors with the greatest impact.…”

Section: Evaluation Of Species/bioindicator Groupsmentioning

confidence: 97%

Benthic macroinvertebrates as bioindicators of environmental quality of Pará River estuary, a wetland of Eastern Amazon

Pinto

Tavares

Pinheiro

et al. 2020

Rev. Bras. Ciênc. Ambient. (Online)

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The study characterized and evaluated the use of the benthic macroinvertebrate community as an indicator of impacts in different estuarine environments around the Industrial Port Complex (IPC) of Vila do Conde (Pará State, Amazon region). Fauna of beaches and rivers, in sectors of the estuary under different degrees of environmental impact (high, medium, and low), was compared in different seasonal periods. Macrofauna was composed of typically fresh-water and estuarine groups. Beaches presented sediment with a texture ranging from medium to coarse sand, with a less rich macrofauna ( = 4.5 ± SE 0.3 taxa/sample) and dense ( = 1,838.1 ± 164.8 ind./m2) of organisms when compared to rivers ( = 5.9 ± 0.3 taxa/sample, and 3,248.9 ± 77.0 ind./m2), which were environments more muddy. For both environments, sites in the high-impact sector were less rich ( = 4.7 ± 0.3 taxa/sample) and dense ( = 2,812.9 ± 232.7 ind./m2) when compared to those in the low-impact sector ( = 7.6 ± 0.4 taxa/sample, and 3,314.3 ± 230.1 ind./m2). Richness ( = 6.4 ± 0.3 taxa/sample) and density ( = 3,859.4 ± 190.2 ind./m2) were higher in the rainier season when compared to the less rainy season ( = 4.8 ± 0.3 taxa/sample, and 1,933.0 ± 172.1 ind./m2). However, there were no significant seasonal changes in composition. Results indicated that the structure of the benthic macroinvertebrate community surrounding the IPC responds to the loss of environmental quality, with extreme effects of a drop in abundance and diversity. Taxa that are more tolerant (Namalycastis caetensis, Cirolana sp., Pseudosphaeroma sp., Tubificidae, and Chironomidae) and sensitive (Hydropsychidae and Eteone sp.) to impact conditions were identified and evaluated as potential bioindicators.

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“…The particle size is one of determinants of oligochaete distribution. The particles size distribution of faecal pellets produced by the T. tubifex was measured in the laboratory [4]. They suggested that this species actively select the silt-clay fraction, avoiding larger sand particles.…”

Section: Review On Biological Monitoring With Oligochaetesmentioning

confidence: 99%

Development of Environmental Monitoring System Using Oligochaetes in Aquatic Ecosystems

2015

International Conference on Biological, Environment and Food Engineering (BEFE-2015) May 15-16, 2015 Singapore

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Sustainable ecosystem management is one of the major issues. This is based on the appropriate assessment of target ecosystems. Recently, besides of physicochemical factors for ecosystem assessment, the importance of biological monitoring and assessment approaches have continuously been suggested and nowadays commonly applied. Among various organisms, oligochaetes which are easily found and have high abundance in freshwater to brackish water have been considered as one of the representatives to monitor or detect various contaminants such as toxicants, organism pollution, etc. In this study, we review the approaches of biological monitoring using aquatic oligochaetes, present trends of biological monitoring techniques, and provide perspectives for the future development.

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Cited by 65 publications

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Influence of tubificid worms on sediment structure, benthic biofilm and fauna in wetlands: A field enclosure experiment

Influence of tubificid worms on sediment structure, benthic biofilm and fauna in wetlands: A field enclosure experiment

Benthic macroinvertebrates as bioindicators of environmental quality of Pará River estuary, a wetland of Eastern Amazon

Development of Environmental Monitoring System Using Oligochaetes in Aquatic Ecosystems

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