A semi-closed recirculating system for the in situ study of feeding and respiration of benthic suspension feeders

Ribes, Marta; Coma, Rafel; Gili, Josep-Marı́a; Svoboda, A.; Julià, A.; Parera, J.; Diagonal, Avda

doi:10.3989/scimar.2000.64s1265

Cited by 18 publications

(10 citation statements)

References 40 publications

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“…While we only considered picoplankton in this study, other important possible sources of carbon for sponges include DOM and DOC [33] , [48] , as well as other forms of POC, from both live (i.e. planktonic organisms) and detrital sources [49] . Yahel et al [32] found considerable DOC uptake (more than 90% of their daily intake) by a sponge from the Red Sea, and De Goeij et al [48] found similar high levels of DOC uptake by several more sponge species in the Caribbean.…”

Section: Discussionmentioning

confidence: 99%

Estimates of Particulate Organic Carbon Flowing from the Pelagic Environment to the Benthos through Sponge Assemblages

2012

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Despite the importance of trophic interactions between organisms, and the relationship between primary production and benthic diversity, there have been few studies that have quantified the carbon flow from pelagic to benthic environments as a result of the assemblage level activity of suspension-feeding organisms. In this study, we examine the feeding activity of seven common sponge species from the Taputeranga marine reserve on the south coast of Wellington in New Zealand. We analysed the diet composition, feeding efficiency, pumping rates, and the number of food particles (specifically picoplanktonic prokaryotic cells) retained by sponges. We used this information, combined with abundance estimates of the sponges and estimations of the total amount of food available to sponges in a known volume of water (89,821 m3), to estimate: (1) particulate organic carbon (POC) fluxes through sponges as a result of their suspension-feeding activities on picoplankton; and (2) the proportion of the available POC from picoplankton that sponges consume. The most POC acquired by the sponges was from non-photosynthetic bacterial cells (ranging from 0.09 to 4.69 g C d−1 with varying sponge percentage cover from 0.5 to 5%), followed by Prochlorococcus (0.07 to 3.47 g C d−1) and then Synechococcus (0.05 to 2.34 g C d−1) cells. Depending on sponge abundance, the amount of POC that sponges consumed as a proportion of the total POC available was 0.2–12.1% for Bac, 0.4–21.3% for Prochlo, and 0.3–15.8% for Synecho. The flux of POC for the whole sponge assemblage, based on the consumption of prokaryotic picoplankton, ranged from 0.07–3.50 g C m2 d−1. This study is the first to estimate the contribution of a sponge assemblage (rather than focusing on individual sponge species) to POC flow from three groups of picoplankton in a temperate rocky reef through the feeding activity of sponges and demonstrates the importance of sponges to energy flow in rocky reef environments.

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Section: Discussionmentioning

confidence: 99%

Estimates of Particulate Organic Carbon Flowing from the Pelagic Environment to the Benthos through Sponge Assemblages

2012

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“…This approach greatly reduced disturbance to the organism during subsequent experimental work. The chambers had inlet and outlet apertures, allowing the system to be operated in an open or closed mode (see Ribes et al 2000 for a detailed description of the system). An electric pump at the outlet aperture forced water through the system at a speed of 0.024 l s -1 during the experiments.…”

Section: Methodsmentioning

confidence: 99%

Natural feeding of the temperate asymbiotic octocoral-gorgonian Leptogorgia sarmentosa (Cnidaria: Octocorallia)

Ribes¹,

Coma²,

Rossi³

2003

Mar. Ecol. Prog. Ser.

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“…was also evaluated from feeding experiments. A modified form of the incubator developed by the Institut de Ciències del Mar (Ribes et al 1998a(Ribes et al , 2000 was used to study the diet of benthic suspension feeders. The incubator consists of a chamber of 5 l volume in which the colony is placed, and an empty control chamber (Fig.…”

Section: Methodsmentioning

confidence: 99%

The role of the small planktonic communities in the diet of two Antarctic octocorals (Primnoisis antarctica and Primnoella sp.)

Orejas¹,

Gili²,

Arntz³

2003

Mar. Ecol. Prog. Ser.

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The diet composition of 2 Antarctic octocorals, Primnoisis antarctica and Primnoella sp., from the shelf of the eastern Weddell Sea (Antarctica) is studied here for the first time. Although mesozooplankton is very scarce in the diet of these organisms, it seems to be important because of its high carbon content. Feeding experiments showed that components of the seston, including the finer fraction of suspended organic matter (ciliates, dinoflagellates and phytoplankton), are also an important part of the octocoral diet. In P. antarctica, the diatom Fragillariopsis spp. accounted for 77% of the total number of cells captured, followed by dinoflagellates (20%), Nitzschia spp. (2%) and ciliates (1%). In Primnoella sp., dinoflagellates were consumed preferentially (92%), followed by ciliates (6%) and centric diatoms (2%). Biomass consumed, however, was low (1.11 × 10 -5 mg C polyp -1 d -1for P. antarctica and 1.34 × 10 -4 mg C polyp -1 d -1 for Primnoella sp.). In P. antarctica, small plankton food covers approximately 49% of the daily energy demand. The ability of these suspension feeders to capture small cells at lower concentrations may allow them to remain seasonally active for considerably longer periods than previously thought. KEY WORDS: Feeding ecology · Suspension feeders · Antarctic gorgonians · Small-plankton communitiesResale or republication not permitted without written consent of the publisher

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A semi-closed recirculating system for the in situ study of feeding and respiration of benthic suspension feeders

Cited by 18 publications

References 40 publications

Estimates of Particulate Organic Carbon Flowing from the Pelagic Environment to the Benthos through Sponge Assemblages

Estimates of Particulate Organic Carbon Flowing from the Pelagic Environment to the Benthos through Sponge Assemblages

Natural feeding of the temperate asymbiotic octocoral-gorgonian Leptogorgia sarmentosa (Cnidaria: Octocorallia)

The role of the small planktonic communities in the diet of two Antarctic octocorals (Primnoisis antarctica and Primnoella sp.)

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