Successes and challenges in jellyfish ecology: examples from Aequorea spp.

Purcell, Jennifer E.

doi:10.3354/meps12213

Cited by 16 publications

(12 citation statements)

References 187 publications

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“…Remarks: Aequorea is a difficult genus as can be suspected from the complex synonymy given above. A comprehensive revision of its species is needed (Purcell, 2018). Kramp (1961) plainly expressed "The species are more or less doubtful."…”

Section: Remarksmentioning

confidence: 99%

Hydromedusae observed during night dives in the Gulf Stream

Schuchert

Collins²

2021

Revue suisse de Zoologie

960

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Section: Remarksmentioning

confidence: 99%

Hydromedusae observed during night dives in the Gulf Stream

Schuchert

Collins²

2021

Revue suisse de Zoologie

960

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“…A ctenophore relevant to our study, Beroe spp., mainly consumes other ctenophores (Finenko et al 2001). In contrast, copepods and ostracods can account for up to 87% of prey in chaetognaths (Froneman et al 1998), and scyphomedusae, hydromedusae, and siphonophores have a wide range of diets, including copepods, fish larvae, pteropods, heteropods, and other gelatinous zooplankton (Purcell 2018). Additionally, the trophic position within a species might shift with ontogeny and life stages (Fleming et al 2015).…”

mentioning

confidence: 99%

Tackling the jelly web: Trophic ecology of gelatinous zooplankton in oceanic food webs of the eastern tropical Atlantic assessed by stable isotope analysis

Chi

Dierking

Hoving

et al. 2020

Limnology & Oceanography

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Gelatinous zooplankton can be present in high biomass and taxonomic diversity in planktonic oceanic food webs, yet the trophic structuring and importance of this "jelly web" remain incompletely understood. To address this knowledge gap, we provide a holistic trophic characterization of a jelly web in the eastern tropical Atlantic, based on δ 13 C and δ 15 N stable isotope analysis of a unique gelatinous zooplankton sample set. The jelly web covered most of the isotopic niche space of the entire planktonic oceanic food web, spanning > 3 trophic levels, ranging from herbivores (e.g., pyrosomes) to higher predators (e.g., ctenophores), highlighting the diverse functional roles and broad possible food web relevance of gelatinous zooplankton. Among gelatinous zooplankton taxa, comparisons of isotopic niches pointed to the presence of differentiation and resource partitioning, but also highlighted the potential for competition, e.g., between hydromedusae and siphonophores. Significant differences in spatial (seamount vs. open ocean) and depth-resolved patterns (0-400 m vs. 400-1000m) pointed to additional complexity, and raise questions about the extent of connectivity between locations and differential patterns in vertical coupling between gelatinous zooplankton groups. Added complexity also resulted from inconsistent patterns in trophic ontogenetic shifts among groups. We conclude that the broad trophic niche covered by the jelly web, patterns in niche differentiation within this web, and substantial complexity at the spatial, depth, and taxon level call for a more careful consideration of gelatinous zooplankton in oceanic food web models. In light of climate change and fishing pressure, the data presented here also provide a valuable baseline against which to measure future trophic observations of gelatinous zooplankton communities in the eastern tropical Atlantic.

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“…Other methods advancing jellyfish research include the use of drones to survey blooms (Schaub et al 2018) and the use of statocysts to age jellyfish (Heins et al 2018). (Halsband et al 2018), and Arctic ice (Purcell et al 2018). How environmental factors and swimming ability may determine distributions of cubozoans was investigated by Schlaefer et al (2018).…”

Section: Introductionmentioning

confidence: 99%

Jellyfish blooms: advances and challenges

Fuentes¹,

Purcell²,

Condon³

et al. 2018

Mar. Ecol. Prog. Ser.

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Research on gelatinous zooplankton (hereafter 'jellyfish') has burgeoned over the past decade. In particular, researchers are increasingly studying the impacts of nuisance outbreaks of jellyfish for human activities. Significant advances in jellyfish research are related to updated technology, molecular and predictive tools, and development of global databases on jellyfish (e.g. Jellyfish Database Initiative, Condon et al. 2014a). Recent studies have identified benefits of jellyfish for ecosystem services (e.g. fisheries) and have led to a greater appreciation by the wider scientific community of the significance of jellyfish in marine food webs and large-scale oceanic processes (e.g. the biological pump, Burd et al. 2016). This is clearly an exciting and challenging time for the jellyfish community to build on these discoveries by establishing new theories and paradigms at an ecosystem scale and to understand the natural and anthropogenic mechanisms driving fluctuations in jellyfish populations across multiple spatiotemporal scales. Undoubtedly, the impetus for jellyfish research and the establishment of a multidecadal knowledge base on jellyfish ecology were stimulated from discussions and sentinel papers presented at the first 4 jellyfish symposia held in

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Successes and challenges in jellyfish ecology: examples from Aequorea spp.

Cited by 16 publications

References 187 publications

Hydromedusae observed during night dives in the Gulf Stream

Hydromedusae observed during night dives in the Gulf Stream

Tackling the jelly web: Trophic ecology of gelatinous zooplankton in oceanic food webs of the eastern tropical Atlantic assessed by stable isotope analysis

Jellyfish blooms: advances and challenges

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