Dynamic filter-feeding responses in fouling organisms

Pascoe, P. L.; Parry, Helen; Hawkins, Ajs

doi:10.3354/ab00022

Cited by 13 publications

(9 citation statements)

References 36 publications

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“…Armsworthy et al (2001) also noted that IR increased linearly with food concentration in the ascidian Halocynthia pyriformis. Pascoe et al (2007) also revealed that CR was maximal around 5 x10 cells/mL, whereas we did not observe a clear maximum for either species tested (Fig. 2b).…”

Section: Discussioncontrasting

confidence: 48%

“…3 dashed line) was surprising given the broad range of food concentrations provided to Hoxha et al 11 study animals. However, Pascoe et al (2007) observed that C. intestinalis exhibited a strong positive relationship between ingestion rate and food concentration up to 6 cells/mL of Isochrysis galbana. Armsworthy et al (2001) also noted that IR increased linearly with food concentration in the ascidian Halocynthia pyriformis.…”

Section: Discussionmentioning

confidence: 89%

“…Robbins 1983;Petersen and Riisgård 1992;Sigsgaard et al 2003;Petersen 2007). At high suspended particulate load, a reduction in IR associated with satiation (Pascoe et al 2007) could be active rejection (ie. squirting; Robbins 1984;Petersen 2007) or a reduction in lateral cilia beat frequency (Petersen 2007).…”

Section: Discussionmentioning

confidence: 99%

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Comparative feeding rates of native and invasive ascidians

Hoxha

Crookes

Lejeusne

et al. 2018

Marine Pollution Bulletin

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Ascidians have a recent history of species introductions globally, often with strong ecological impacts. Comparisons of per capita effects of invaders and comparable natives are useful to assess such impacts. Here, we explore ingestion rates (IR) and clearance rates (CR) of Ciona intestinalis and Ciona robusta, co-occurring native and non-native ascidians, respectively, from Brittany, France. IR was positively related to food concentration, with the invader responding more strongly to increasing food concentration. CR also differed by species, with the invader demonstrating higher values. C. robusta exhibited a higher functional response (Type I) than did C. intestinalis (Type II). Relative impact measured using seasonal abundance and IR revealed that C. robusta has a much greater impact than C. intestinalis at all food concentrations tested, though the former has a constrained distribution which limits its regional impact. Nevertheless, when abundant, we expect C. robusta to exert a greater impact on algal foods.

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Section: Discussioncontrasting

confidence: 48%

Section: Discussionmentioning

confidence: 89%

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Comparative feeding rates of native and invasive ascidians

Hoxha

Crookes

Lejeusne

et al. 2018

Marine Pollution Bulletin

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“…Suspension feeder; scavenger O'Gorman (2010a), Johnson and Attramadal (1982), Kudinova-Pasternak (1991), Dennell (1937), Blazewicz-Paszkowycz and Ligowski (2002), Drumm (2005), Holdich and Jones (1983) (continued ) Ascidiella aspersa Suspension feeder Tillin et al (2006), Hunt (1925), Hily (1991), Pascoe et al (2007), Randlov and Riisgard (1979), Millar (1970) …”

Section: Apseudes Talpamentioning

confidence: 98%

Manipulating Interaction Strengths and the Consequences for Trivariate Patterns in a Marine Food Web

O’Gorman¹,

Emmerson

2010

Advances in Ecological Research

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“…Widdows & Staff 2006), but also in other active filter-feeders such as ascidians and bryozoans (e.g. Pascoe et al 2007, Montalto et al 2017. The decline in I. galbana cell concentration was monitored using a Model Z2 Coulter Counter (Beck man Coulter).…”

Section: Ecophysiology and Community Composition Of Biofoulingmentioning

confidence: 99%

Functional role of biofouling linked to aquaculture facilities in Mediterranean enclosed locations

Montalto¹,

Mangano

Sarà

et al. 2020

Aquacult. Environ. Interact.

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Biofouling is generally considered a serious threat for human coastal activities such as aquaculture, and the ecological role of fouling organisms associated with fish-farm cages re mains one of the most debated topics in the ecological field. However, although biofouling may cause significant problems related to human health, environmental impact and financial losses, in the past decade there has been an increasing interest in developing methods to promote the growth of biofouling on artificial structures as a strategy to mitigate human impacts and reduce the organic enrichment caused by net-cage fish farming. Here we investigated the filtration activity of biofouling assemblages colonizing artificial substrata located within a harbor. The main objective of the study was to determine if and how changes in composition and functioning of biofouling may be affected by hypoxic conditions that periodically occur within the port site selected for this study. To this purpose, artificial panels were used as biofouling collectors and were brought back to the laboratory seasonally where they were divided in 3 subgroups and acclimated at 3 different oxygen levels to mimic the naturally occurring oxygenic conditions. Clearance and respiration rates of each community were measured 6 and 24 h after the beginning of each treatment. Regardless of experimental conditions, performance of the communities was affected by the seasonality and the amount of biomass recruiting on the panels, mainly composed of crustaceans, ascidians, polychaetes, seaweeds and several introduced species. Our study demonstrated that, in particular cases, fouling assemblages linked to aquaculture facilities may contribute to reducing environmental impact and at the same time may serve as input for their re-use in different disciplines.

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Dynamic filter-feeding responses in fouling organisms

Cited by 13 publications

References 36 publications

Comparative feeding rates of native and invasive ascidians

Comparative feeding rates of native and invasive ascidians

Manipulating Interaction Strengths and the Consequences for Trivariate Patterns in a Marine Food Web

Functional role of biofouling linked to aquaculture facilities in Mediterranean enclosed locations

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