Potential effects of invasive <i>Pterois volitans</i> in coral reefs

Maji, Banamali; Bhattacharyya, Joydeb; Pal, Samares

doi:10.1080/23737867.2016.1213146

Cited by 3 publications

(2 citation statements)

References 18 publications

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“…The difference in relevance of these new findings for aquatic organisms is presumably linked with the fact that the observation of feeding events or collection of feces is generally less feasible in the aquatic ecosystems, and therefore, previous knowledge was more limited (e.g., Waap et al, ). Examples of such relevant novelties include the surprising finding of cartilaginous prey in the diet of the Australian fur seals Arctocephalus pusillus doriferus (Deagle, Kirkwood, & Jarman, ); the cannibalistic predation of the red lionfish Pterois volitans and its ecological meaning (Valdez‐Moreno, Quintal‐Lizama, Gómez‐Lozano, & García‐Rivas, , which led to the subsequent works of Côté, Green, Morris Jr, Akins, & Steinke, ; Dahl et al, ; Maji, Bhattacharyya, & Pal, ); the confirmation of the occurrence of ontogenetic shifts in the dietary preferences in the largemouth sea bass Micropterus salmoides and sunfish Mola mola (Jo et al, 2014; Sousa et al, ); the detection of a much more diverse prey range than expected for the Adelie penguins P. adeliae and the sunfish revealing a much more generalist feeding behavior for these species (Jarman et al, ; Sousa et al, ); or more recently the high diversity and frequency of bony fishes in the diet of Mobula rays (Bessey et al, ). From new diet compositions to the revelation of novel feeding strategies, we expect that similar novelties will likely continue in future studies on aquatic taxa.…”

Section: Confirmation Of Terrestrial Dietary Preferences and A Paradimentioning

confidence: 99%

DNA metabarcoding in diet studies: Unveiling ecological aspects in aquatic and terrestrial ecosystems

2019

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Effective conservation of species and ecosystems requires the understanding of important ecological traits, such as dietary habits, food webs, and trophic niches. In diet studies, the visual identification of partially digested prey has been enhanced with the recent more powerful and accurate technique, DNA barcoding. Here, we summarize the contribution of this recent methodology to the investigation of both terrestrial and aquatic taxa diet, and compare the level of novelty uncovered through the use of this technique regarding species' ecology. From a total of 150 studies analyzed, focusing on more than 250 vertebrate wild species, seven domesticated taxa, and humans, we suggest that barcoding has led to more significant findings for aquatic taxa and ecosystems, where direct observations of feeding events and consequent trophic niche understanding are typically limited. Finally, we introduce the term dietary DNA (dDNA) to describe environmental approaches that use DNA extracted from gut, stomach, or fecal contents, aiming to assess both species dietary habits and describe local biodiversity. Particularly, we highlight the complementarity of environmental DNA (eDNA) and dDNA as a new tool for biodiversity assessments in remote areas, including most of the aquatic realm.

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Section: Confirmation Of Terrestrial Dietary Preferences and A Paradimentioning

confidence: 99%

DNA metabarcoding in diet studies: Unveiling ecological aspects in aquatic and terrestrial ecosystems

2019

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“…The biodiversity, productivity and resilience of marine ecosystems worldwide are threatened by an imbalance in the ecological parameters regulating population outbreaks. Mass occurrences of micro‐ and macroalgae, cnidarians, ctenophores, molluscs, echinoderms, tunicates and fish appear with increasing frequency and intensity at a global scale in recent decades (Breithaupt, ; Lucas & Dawson, ; Maji, Bhattacharyya, & Pal, ). Despite mass occurrences and mass mortality events are widespread—and can provide major implications for marine ecosystem health—predictions have remained challenging because of an incomplete understanding of underlying demographic processes (Fey et al, ).…”

Section: Introductionmentioning

confidence: 99%

Ecological drivers of jellyfish blooms – The complex life history of a ‘well‐known’ medusa (Aurelia aurita)

Goldstein

Steiner

2020

Journal of Animal Ecology

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Jellyfish blooms are conspicuous demographic events with significant ecological and socio‐economic impact. Despite worldwide concern about an increased frequency and intensity of such mass occurrences, predicting their booms and busts remains challenging. Forecasting how jellyfish populations may respond to environmental change requires considering their complex life histories. Metagenic life cycles, which include a benthic polyp stage, can boost jellyfish mass occurrences via asexual recruitment of pelagic medusae. Here we present stage‐structured matrix population models with monthly, individual‐based demographic rates of all life stages of the moon jellyfish Aurelia aurita L. (sensu stricto). We investigate the life‐stage dynamics of these complex populations under low and high food conditions to illustrate how changes in medusa density depend on non‐medusa stage dynamics. We show that increased food availability can be an important ecological driver of jellyfish mass occurrences, as it can temporarily shift the population structure from polyp‐ to medusa‐dominated. Projecting populations for a winter warming scenario additionally enhanced the booms and busts of jellyfish blooms. We identify demographic key variables that control the intensity and frequency of jellyfish blooms in response to environmental drivers such as habitat eutrophication and climate change. By contributing to an improved understanding of mass occurrence phenomena, our findings provide perspective for future management of ecosystem health.

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Ecological drivers of jellyfish blooms – the complex life history of a ‘well-known’ medusa (Aurelia aurita)

Goldstein

Steiner

2017

Preprint

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Potential effects of invasive Pterois volitans in coral reefs

Cited by 3 publications

References 18 publications

DNA metabarcoding in diet studies: Unveiling ecological aspects in aquatic and terrestrial ecosystems

DNA metabarcoding in diet studies: Unveiling ecological aspects in aquatic and terrestrial ecosystems

Ecological drivers of jellyfish blooms – The complex life history of a ‘well‐known’ medusa (Aurelia aurita)

Ecological drivers of jellyfish blooms – the complex life history of a ‘well-known’ medusa (Aurelia aurita)

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