The Life History of Branchiura sowerbyi

Carroll, John H.; Dorris, Troy C.

doi:10.2307/2423572

Cited by 18 publications

(7 citation statements)

References 9 publications

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“…Indeed, it allowed extrapolating effects on individual growth, survival, and maturity in population-level outputs, notably by including the potential increase in age at first brood (eq ) what was generally ignored in population risk assessment. Yet, life span, growth, and reproduction are highly plastic in natural populations of B. sowerbyi , being mainly determined by temperature and food availability . The influence of those modulating factors was not accounted for in our models.…”

Section: Discussionmentioning

confidence: 98%

“…Among tubificids, Branchiura sowerbyi has been recognized as a valuable alternative to the standard species Tubifex tubifex from both the ecological and the toxicological points of view . Indeed, this worldwide-distributed species is one of the most pollutant-sensitive freshwater oligochaete species . Effects of toxicants on B. sowerbyi have mostly been characterized in 96-h mortality tests (see for instance refs and ).…”

Section: Introductionmentioning

confidence: 99%

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From Individual to Population Level Effects of Toxicants in the Tubicifid Branchiura sowerbyi Using Threshold Effect Models in a Bayesian Framework

Ducrot

Billoir

Péry

et al. 2010

Environ. Sci. Technol.

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Effects of zinc were studied in the freshwater worm Branchiura sowerbyi using partial and full life-cycle tests. Only newborn and juveniles were sensitive to zinc, displaying effects on survival, growth, and age at first brood at environmentally relevant concentrations. Threshold effect models were proposed to assess toxic effects on individuals. They were fitted to life-cycle test data using Bayesian inference and adequately described life-history trait data in exposed organisms. The daily asymptotic growth rate of theoretical populations was then simulated with a matrix population model, based upon individual-level outputs. Population-level outputs were in accordance with existing literature for controls. Working in a Bayesian framework allowed incorporating parameter uncertainty in the simulation of the population-level response to zinc exposure, thus increasing the relevance of test results in the context of ecological risk assessment.

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Section: Discussionmentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

From Individual to Population Level Effects of Toxicants in the Tubicifid Branchiura sowerbyi Using Threshold Effect Models in a Bayesian Framework

Ducrot

Billoir

Péry

et al. 2010

Environ. Sci. Technol.

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“…Stable isotopic compositions of oligochaetes were measured without species identification in the present study. Previous studies showed a total of 13 species of oligochaetes were observed in Lake Kasumigaura (Ohtaka 2014), and their life cycles and ecological behaviors were different among species (e.g., Carroll and Dorris 1972; Yasuda and Okino 1987; Ohtaka 1992; Ohtaka and Kikuchi 1997), suggesting interspecific differences may affect variability of δ 13 C and δ 15 N. In future studies, interspecific differences of methane‐derived carbon contributions should be examined to understand ecological roles of oligochaetes in methane dynamics.…”

Section: Discussionmentioning

confidence: 99%

Variability of benthic methane‐derived carbon along seasonal, biological, and sedimentary gradients in a polymictic lake

Tsuchiya

Komatsu

Shinohara

et al. 2020

Limnology & Oceanography

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The spatial and seasonal variations of methane-derived carbon contributions to Chironomus plumosus larvae and oligochaetes biomass at four stations in a polymictic, eutrophic lake were examined to determine which factors (CH 4 and/or dissolved oxygen) affect the methane-derived carbon contributions, and quantify impacts of benthic methane-derived carbon on the lake food web. Methane-derived carbon contributions were estimated by a two-source mixing model using δ 13 C values of monthly particulate organic matter (−29.5 to −20.8‰) and methane-oxidizing bacteria (−85.7‰). Large spatial and seasonal variability of methane-derived carbon contributions to C. plumosus and oligochaetes within the lake (0-38% and 0-32%, respectively) were observed, where contributions varied spatially along a gradient of sediment CH 4 concentration, but not dissolved oxygen. The results suggest that for both C. plumosus and oligochaetes, spatial variabilities of the methane-derived carbon contributions are regulated by CH 4. Seasonal variability of methane-derived carbon contributions to C. plumosus revealed increases in summer and autumn following increases in CH 4. Methane-derived biomass (methanederived carbon% × biomass) of C. plumosus were also higher in summer and autumn, suggesting transfer of methane-derived carbon to higher trophic organisms may be larger during those seasons, and limited in winter and spring. Although oligochaetes did not show seasonal variability of methane-derived carbon contributions, they provided a consistent source of methane-derived biomass to higher trophic levels throughout the year. Our study demonstrates that two major macroinvertebrates complementarily contribute to fueling methane-derived carbon cycling through trophic transfer in a polymictic lake.

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“…Among the Oligochaeta, Branchiura sowerbyi Beddard, 1892 is recommended by some authors as live food for fish (Aston and Milner ; Aston et al ; Aston ). The species is widely distributed in fine sediments with a higher content of organic debris (Aston ), located in the margins of rivers and lakes of the tropical and temperate regions (Carroll and Dorris ). B. sowerbyi is easily identified as it shows gill filaments on the back of the body, while the adults can reach a length of 9–11 cm (OECD ).…”

mentioning

confidence: 99%

“…The amount of organic matter present in the sediment influences the reproductive activity of B. sowerbyi , because sites rich in organic matter provide reproduction of individuals even in colder temperatures, that does not happen in sites with lower availability of organic matter (Carroll and Dorris ). Sobhana and Nair () suggested that high densities can extend reproduction periods of Tubificidae (actually classified as Tubificinae) worms, however higher densities, above 35,000 worms/m 2 , although not prevent the reproduction, can delay maturation.…”

mentioning

confidence: 99%

Density and Organic Matter Influence on Egg‐laying and Hatching of Branchiura sowerbyi (Oligochaeta)

Rech

Guereschi

Nuñer

et al. 2013

J World Aquaculture Soc

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This study aimed to assess the combined effects of density of adults of Branchiura sowerbyi and the source of organic matter on the production of eggs and young species. The experimental units used were 250-mL beakers with 100 mL of fine sand (0.074-0.210 mm) and 150 mL of chlorine-free water with constant aeration at the temperature 25 C. The experiment was conducted based on a two-factor model with six treatments and three repetitions, applied in a completely random design. The densities 5 individuals/38.5cm 2 (D5; 1298/m 2 ) and 8 individuals/38.5cm 2 (D8; 2078/m 2 ) were assessed with commercial fish feed (FF), commercial poultry feed (PF), and turkey manure (TM) as sources of organic matter. A total of 1223 cocoons and 2138 eggs were produced, with average hatching of 40.0 ± 15.1%. The highest number of cocoons and eggs was found with the use of PF, D8 having produced the highest number of cocoons and eggs. The hatching rate was not influenced by the source of organic matter or density and no influence was registered from the density of adults on the survival. The PF provided the highest growth of adults, and generally the use of TM provided the worst performance.

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The Life History of Branchiura sowerbyi

Cited by 18 publications

References 9 publications

From Individual to Population Level Effects of Toxicants in the Tubicifid Branchiura sowerbyi Using Threshold Effect Models in a Bayesian Framework

From Individual to Population Level Effects of Toxicants in the Tubicifid Branchiura sowerbyi Using Threshold Effect Models in a Bayesian Framework

Variability of benthic methane‐derived carbon along seasonal, biological, and sedimentary gradients in a polymictic lake

Density and Organic Matter Influence on Egg‐laying and Hatching of Branchiura sowerbyi (Oligochaeta)

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