Trophic structure of megabenthic food webs along depth gradients in the South China Sea and off northeastern Taiwan

Lin, Heshan; Lin, Pengfei; Chang, Ni-Na; Shiao, Jen‐Chieh; Kao, Shuh‐Ji

doi:10.3354/meps10681

Cited by 12 publications

(4 citation statements)

References 70 publications

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“…Interestingly, in sediment, a shorter carbon chain and more chloride atoms of C 10 Cl 9–10 became the predominant component of CPs, which may resulted from microbial transformations of CPs. , Moreover, seawater and biotas shared similar patterns of CPs’ composition characteristics and were distinguished from those in sediments, as reflected by rules of chlorine and carbon homologue abundance profiles of CPs (Figure ). In addition, previous studies pointed out that the high hydrophobicity of CPs made them easy to absorb into suspended particles which can be crucial food sources for deep-sea benthic biotas. , Hence, CPs in benthic biota may originate from the particles of seawater in our study. Moreover, homologous compositions of CPs in seawater (SCCPs 36.4%, MCCPs 63.0%, and LCCPs 0.7%) were very similar to those found in the dominant technical CP product of CP52 in China (SCCPs 39%, MCCPs 57%, and LCCPs 4%) .…”

Section: Resultsmentioning

confidence: 65%

“…In addition, previous studies pointed out that the high hydrophobicity of CPs made them easy to absorb into suspended particles which can be crucial food sources for deep-sea benthic biotas. 7,52 Hence, CPs in benthic biota may originate from the particles of seawater in our study. Moreover, homologous compositions of CPs in seawater (SCCPs 36.4%, MCCPs 63.0%, and LCCPs 0.7%) were very similar to those found in the dominant technical CP product of CP52 in China (SCCPs 39%, MCCPs 57%, and LCCPs 4%).…”

Section: Occurrence Of Cps Inmentioning

confidence: 68%

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Bioaccumulation and Trophic Transfer of Short-, Medium-, and Long-Chain-Chlorinated Paraffins in Benthic Biotas of the Haima Cold Seep, South China Sea

Lyu,

Chen,

Fang

et al. 2024

ACS EST Water

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The bioaccumulation and trophic transfer of chlorinated paraffins (CPs) in deep-sea environments are vital, but no information is currently available. In the present study, CPs were analyzed in seawater, sediments, and benthic biotas from the Haima cold seeps, South China Sea. Total CP concentrations in biota ranged from 264.7 to 12874.4 ng/g of lipid weight, and their average concentrations, ranked from the highest to lowest, are as follows: sea cucumber ≈ slim tubeworm > crab > brittle star ≈ snail ≈ shrimp ≈ mussel > clam ≈ giant tubeworm. Benthic biotas displayed high accumulation abilities for SCCPs, MCCPs, and LCCPs, exhibiting at least medium-level pollution in the Haima cold seeps. Seawater was considered to be the primary source of CPs for biotas. Higher bioaccumulation potentials occurred in nonchemosymbiotic biotas than in chemosymbiotic biotas. Biomagnification for SCCPs and MCCPs and biodilution for LCCPs were observed between snails and mussels. No trophic transfer patterns were found in the whole benthic biota of the Haima cold seeps. This is the first report of CP bioaccumulation in the deep-sea environment. The results will provide insights into further studying the biological trophodynamics and ecological risks of CPs in deep-sea environments.

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Section: Resultsmentioning

confidence: 65%

Section: Occurrence Of Cps Inmentioning

confidence: 68%

Bioaccumulation and Trophic Transfer of Short-, Medium-, and Long-Chain-Chlorinated Paraffins in Benthic Biotas of the Haima Cold Seep, South China Sea

Lyu,

Chen,

Fang

et al. 2024

ACS EST Water

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“…It is well known that differences in food supply and hydrographic conditions can affect the trophic structure of benthic communities (e.g. Bergmann et al 2009;Iken et al 2010;Feder et al 2011;Tecchio et al 2013;Lin et al 2014). We hypothesize that higher food supply and higher bottom-current speeds at the Mingulay reef complex result in a relatively higher biomass of suspension/filter feeders and relatively higher biomass assembled in the lower trophic levels than observed at the Logachev mounds.…”

Section: Introductionmentioning

confidence: 81%

“…Knowledge about trophic structure is necessary in order to understand important aspects of ecosystem functioning such as competition for food resources (e.g. Carlier et al 2009;Iken et al 2010;Lin et al 2014) and elemental (re)cycling (Hoffmann et al 2009;Maldonado et al 2012;Perea-Blázquez et al 2012;White et al 2012;de Goeij et al 2013).…”

Section: Introductionmentioning

confidence: 99%

The trophic structure ofSpongosorites coralliophaga-coral rubble communities at two northeast Atlantic cold water coral reefs

Kazanidis

Witte

2016

Marine Biology Research

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We examined the isotopic signatures (δ 13 C, δ 15 N) of fauna living in association with the sponge Spongosorites coralliophaga colonizing coral rubble on cold-water coral reefs in the northeast Atlanticthe shallow inshore (122-131 m collection depth) Mingulay 01 area and the deep offshore (683-800 m) Logachev 02 mound. The δ 15 N signatures of suspended particulate organic matter and three primary consumers, i.e. Spongosorites coralliophaga, Reteporella beaniana and Parazoanthus anguicomus were used as trophic baselines and the resulting trophic structure was compared. In both regions four trophic levels were distinguished. However, the use of S. coralliophaga or R. beaniana as baselines resulted in a skewed trophic structure due to the enriched δ 15 Ν signatures of these two species on the Logachev 02 mound. Using suspended particulate organic matter and P. anguicomus as baselines, the Mingulay 01 area communities were characterized by elevated relative biomass of lower trophic levels compared to the Logachev 02 mound. Relative biomass of suspension/filter feeders was also higher at the Mingulay 01 area. The two regions differed significantly with regard to the prevailing environmental conditions: apart from the difference in depth and distance from shore, the Mingulay 01 area was characterized by higher primary production in surface waters, tight pelagic-benthic coupling and higher velocity of bottom currents, and it is hypothesized that these characteristics were the main drivers of the observed differences. This study highlighted that multiple trophic baselines can provide a better interpretation of food-web structure and that the use of sponges or bryozoans as baselines across bathymetric gradients should be avoided.

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Trophic relationships of hydrothermal vent and non-vent communities in the upper sublittoral and upper bathyal zones off Kueishan Island, Taiwan: a combined morphological, gut content analysis and stable isotope approach

Wang

Chan

2014

Mar Biol

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Trophic structure of megabenthic food webs along depth gradients in the South China Sea and off northeastern Taiwan

Cited by 12 publications

References 70 publications

Bioaccumulation and Trophic Transfer of Short-, Medium-, and Long-Chain-Chlorinated Paraffins in Benthic Biotas of the Haima Cold Seep, South China Sea

Bioaccumulation and Trophic Transfer of Short-, Medium-, and Long-Chain-Chlorinated Paraffins in Benthic Biotas of the Haima Cold Seep, South China Sea

The trophic structure ofSpongosorites coralliophaga-coral rubble communities at two northeast Atlantic cold water coral reefs

Trophic relationships of hydrothermal vent and non-vent communities in the upper sublittoral and upper bathyal zones off Kueishan Island, Taiwan: a combined morphological, gut content analysis and stable isotope approach

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