Glass sponge reefs as a silicon sink

Chu, Jackson W. F.; Maldonado, Manuel; Yahel, Gitai; Leys, Sally P.

doi:10.3354/meps09381

Cited by 65 publications

(54 citation statements)

References 58 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Sauer et al 2006;Siipola et al 2013). Some attempts have been made (Kamatani 1971;Maldonado et al 2005;Chu et al 2011), and it has tentatively been shown that even the group or species origin of the BSi may influence dissolution rates. It is likely that significant occurrence of pedogenic, amorphous Si in the Kuutsjärvi sediments would have shown up in the extraction used.…”

Section: Lithogenic Amorphous Si?mentioning

confidence: 99%

High concentrations of amorphous, biogenic Si (BSi) in the sediment of a small high-latitude lake: implications for biogeochemical Si cycling and for the use of BSi as a paleoproxy

et al. 2014

View full text Add to dashboard Cite

The concentration of biogenic silica (BSi) in soils and sediments may be studied for several purposes, most notably either as a paleo-environmental proxy or to clarify the transport of weathering-derived Si within the biogeosphere. With this in mind, we explored the reasons behind the very high BSi concentration (average 250 mg Si g -1 dry mass) in the sediment of a small, highlatitude lake in Finnish Lapland, Lake Kuutsjärvi, using bulk BSi and stable Si isotope analysis of major Si pools in the lake and its drainage area. The high BSi content of the sediment was relatively stable over the past few hundred years and recent changes in the food web of the lake were not clearly reflected in the data. The origin of the sedimentary BSi was not solely autochthonous diatom production: extraneous sources accounted for possibly as much as 54-88 % (isotope analysis). A main reason for the high BSi content appeared to be the transport of older deposits of diatom material from the drainage area into the current lake basin, although other factors such as good preservation conditions may have contributed. Although our results indicate that small high-latitude lakes may be hot-spots in the burial of BSi, more information is needed on the processes that affect the translocation of BSi from the drainage area to the aquatic system. Caution is advisable when past lake conditions are inferred from sedimentary BSi only.

show abstract

Section: Lithogenic Amorphous Si?mentioning

confidence: 99%

High concentrations of amorphous, biogenic Si (BSi) in the sediment of a small high-latitude lake: implications for biogeochemical Si cycling and for the use of BSi as a paleoproxy

et al. 2014

View full text Add to dashboard Cite

show abstract

“…Recent studies have suggested the idea that siliceous sponges are relevant DSi users at a large ecological scale, a role traditionally neglected by nutrient ecologists and biogeochemists and that is biasing the advance toward a realistic understanding of silicon cycling in marine systems, and particularly on continental margins (Reincke & Barthel, 1997;Maldonado et al, 2005Maldonado et al, , 2010aMaldonado et al, , 2011Chu et al, 2011).…”

Section: Introductionmentioning

confidence: 99%

Experimental silicon demand by the sponge Hymeniacidon perlevis reveals chronic limitation in field populations

Maldonado¹,

Cao²,

Cao³

et al. 2011

Ancient Animals, New Challenges

View full text Add to dashboard Cite

“…; Chu et al. ) and live in a low‐resource environment (Yahel et al. ); thus, organic‐based defences (chemicals) would be a more energetically costly strategy.…”

Section: Discussionmentioning

confidence: 99%

“…; Chu et al. ). Because of the high content of siliceous skeleton and low amounts of living tissue found in glass sponges, they are of relatively low mass‐specific nutritional value, and thus few animals are expected to feed on them (Barthel ).…”

mentioning

confidence: 97%

The dorid nudibranchs Peltodoris lentiginosa and Archidoris odhneri as predators of glass sponges

Chu

Leys

2012

Invertebrate Biology

View full text Add to dashboard Cite

The dorid nudibranchs Peltodoris lentiginosa and Archidoris odhneri were found on glass sponges (Porifera, Hexactinellida) during remotely operated vehicle surveys of three reefs in the Strait of Georgia, British Columbia, Canada. Eight nudibranchs were sampled from 2009 to 2011. Identification of sponge spicules found in their gut and fecal contents confirmed the nudibranchs to be predators of the reef‐forming hexactinellids Aphrocallistes vastus and Heterochone calyx, as well as of the demosponge Desmacella austini, which encrusts skeletons of the glass sponges. Four of five nudibranchs dissected for gut content analysis had stomachs containing sponge spicules. Counts from high‐definition video footage taken during systematic surveys done in 2009 showed that nudibranchs were found in only two of the three glass sponge reefs. These data provide the first quantitative evidence of a molluscan predator on glass sponges found outside of Antarctica, and establish the first trophic link between glass sponges and their associated community of animals in a sponge reef ecosystem on the western Canadian continental shelf.

show abstract

Glass sponge reefs as a silicon sink

Abstract: Resale or republication not permitted without written consent of the publisher Aphrocallistes vastus and Heterochone calyx are reef-building glass sponges, whose heavily silicified skeletons create a large reservoir of silicon. Photo: S. P. Leys, V. Tunnicliffe, and ROPOS

Cited by 65 publications

References 58 publications

High concentrations of amorphous, biogenic Si (BSi) in the sediment of a small high-latitude lake: implications for biogeochemical Si cycling and for the use of BSi as a paleoproxy

High concentrations of amorphous, biogenic Si (BSi) in the sediment of a small high-latitude lake: implications for biogeochemical Si cycling and for the use of BSi as a paleoproxy

Experimental silicon demand by the sponge Hymeniacidon perlevis reveals chronic limitation in field populations

The dorid nudibranchs Peltodoris lentiginosa and Archidoris odhneri as predators of glass sponges

Contact Info

Product

Resources

About