2019
DOI: 10.1016/j.ecss.2019.106464
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Preferential assimilation of seagrass detritus by two coexisting Mediterranean sea cucumbers: Holothuria polii and Holothuria tubulosa

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Cited by 31 publications
(22 citation statements)
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References 58 publications
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“…The pattern emerging from our study led us to hypothesise that a trophic link with the seagrass detritus food-chain may explain both the macro-mesoscale association with seagrass species and the microscale cross-boundary distribution. In fact, seagrass detritus is highly refractory, since it is largely exported to the nearby areas where it can represent the major food source for other invertebrates (Boncagni et al, 2019a;Danovaro, 1996). This hypothesis is consistent with the stomach contents observations reported by Davenport and co-authors (2011) indicating detritus as the bulk component, accounting for 95% of the total ingested material.…”
Section: Habitat Association and Trophic Ecologysupporting
confidence: 89%
See 1 more Smart Citation
“…The pattern emerging from our study led us to hypothesise that a trophic link with the seagrass detritus food-chain may explain both the macro-mesoscale association with seagrass species and the microscale cross-boundary distribution. In fact, seagrass detritus is highly refractory, since it is largely exported to the nearby areas where it can represent the major food source for other invertebrates (Boncagni et al, 2019a;Danovaro, 1996). This hypothesis is consistent with the stomach contents observations reported by Davenport and co-authors (2011) indicating detritus as the bulk component, accounting for 95% of the total ingested material.…”
Section: Habitat Association and Trophic Ecologysupporting
confidence: 89%
“…These processes take time, and while the matter is transported, heterotrophic bacteria grow exponentially, turning it into a high quality and protein enriched food for consumers. Hence, bacteria adhering to seagrass detritus may play a key role in this benthic food chain and sediment-water interface consumers may incorporate more energy from associated microbes than from the detritus itself (Boncagni et al, 2019b;Danovaro et al, 1998;Rakaj et al, 2019Rakaj et al, , 2018. On the basis of these considerations, it is reasonable to conclude that the quantity, composition and origin of the suspended particles are regulated by a drift mechanism and that this mechanism may explain local densities of P nobilis as a response to sinking rates and resuspension effects.…”
Section: Habitat Association and Trophic Ecologymentioning
confidence: 99%
“…However, using stable isotopes and simulated feeding experiments, Floren et al (2021) found that 61-70% of the diet of H. scabra and Holothuria atra-leucospilota in the tropical Andaman Sea was derived from the seagrasses E. acoroides, T. hemprichii, and Halophila ovalis. A similar result was found in temperate Mediterranean seagrass meadow wherein the diets of Holothuria poli and Holothuria tubulosa were derived from the seagrasses Cymodocea nodosa and P. oceanica at 63-74% (Boncagni et al, 2019). These findings were supported by an earlier study done in a temperate Northwest Mediterranean seagrass meadow wherein the diet of H. poli and Holothuria tubulosa-mamatta complex was derived mainly from the seagrass P. oceanica (Ricart et al, 2015).…”
Section: Interactions Of Factorssupporting
confidence: 86%
“…However, and in spite of the ecological relevance of these species and risk of overexploitation, these traits are fairly described for the most relevant species in the trade market (e.g., Mercier et al, 2000;Shiell, 2007;Morgan, 2011;Dissanayake and Stefansson, 2012;Purcell et al, 2012Purcell et al, , 2016Kashio et al, 2016) but for others are sparse and scarce. Emergent target species (from the Mediterranean and NE-Atlantic) are less studied, or not at all, or have a strong regional or habitat focus (e.g., Simunovic et al, 2000;Navarro et al, 2014;Siegenthaler et al, 2015Siegenthaler et al, , 2017Marquet et al, 2017;Aydin, 2019b;Boncagni et al, 2019;DomĂ­nguez-Godino and GonzĂĄlez-WangĂŒemert, 2020). The introduction of these species in the international trade markets is the result of a stock depletion of traditional commercial species, mainly from the Indo-Pacific, increasing demand and consequent fisheries expansion to new areas (Purcell et al, 2013;Conand, 2017;GonzĂĄlez-WangĂŒemert et al, 2018;Dereli and Aydın, 2021).…”
Section: Introductionmentioning
confidence: 99%