Unmasking<i>Aurelia</i>species in the Mediterranean Sea: an integrative morphometric and molecular approach

Scorrano, Simonetta; Aglieri, Giorgio; Boero, Ferdinando; Dawson, Michael N; Piraino, Stefano

doi:10.1111/zoj.12494

Cited by 546 publications

(143 citation statements)

References 73 publications

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“…Since then, very few sightings of P. camtschatica have been reported. A taxonomic survey integrating morphological and molecular genetic data would be appropriate to establish whether P. camtschatica represents a cryptic species complex, as recently demonstrated for other Mediterranean jellyfish that were supposed to have a cosmopolitan distribution (Scorrano et al, 2017). It is known to prey on other jellyfish species, notably on moon jellies Aurelia spp., and to provide shelter to the juveniles of a number of carangid and gadid fish species.…”

Section: Notes On Infrequent Gelatinous Visitors To the Central Meditmentioning

confidence: 99%

New Mediterranean Biodiversity Records 2019

et al. 2019

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This paper is a collection of novel distributional records of 20 species belonging to 8 phyla (Chlorophyta, Rhodophyta, Cnidaria, Ctenophora, Annelida, Mollusca, Arthropoda and Chordata) from 11 Mediterranean countries, namely, Spain: an additional record of the Canary dentex Dentex canariensis is reported from Spain (Valencia), this is the northernmost record of this species in the Mediterranean; Algeria: the first documented record of Caulerpa chemnitzia is reported from the Algerian coast; France: the first record of the Spotted sea hare Aplysia dactylomela is reported from the eastern coast of Corsica; Italy: the first records of the Lessepsian polychaete Dorvillea similis and the alien bivalve Isognomon legumen are reported from Italian waters while additional records of Mnemiopsis leidyi in the south Adriatic are provided; Libya: the first record of an alien mollusc Crepidula fornicata is reported from Libyan waters; Malta: multiple sightings of gelatinous species Apolemia uvaria, Phacellophora camtschatica and Physophora hydrostatica are reported for the first time from Maltese waters, as well as the first tentative record of the Orange-spotted grouper Epinephelus cfr. coioides; Greece: an occurrence of a rare Bigeye thresher shark Alopias superciliosus is reported from Hellenic Ionian waters, while the first records of the alien Mertens’ prawn-goby Vanderhorstia mertensi, the recently described cyclopoid copepod Oithona davisae and the alien red seaweed Asparagopsis armata are reported from the Aegean Sea. The presence of the micromollusc Euthymella colzumensis is confirmed for Greece; Cyprus: the first record of the red cornetfish Fistularia petimba is reported from Cyprus; Turkey: the first record of the alien jellyfish Marivagia stellata is reported from south-eastern Turkey; Israel: the first records of the sea nettle Chrysaora sp. in the Levant are reported.

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Section: Notes On Infrequent Gelatinous Visitors To the Central Meditmentioning

confidence: 99%

New Mediterranean Biodiversity Records 2019

et al. 2019

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“…Schnedler-Meyer, Kiørbøe, & Mariani, 2018). Although the temporal and spatial patterns of abundance in each life stage may vary according to jellyfish species (Lucas et al, 2012;Scorrano, Aglieri, Boero, Dawson, & Piraino, 2016) and even across populations of the same species (Dawson et al, 2015), our observations on the moon jellyfish are likely describing general trends. Field evidence for a strong positive correlation between medusa density and prey abundance in two distinct A. aurita populations from the UK (Dawson et al, 2015, their figure 4d) implies that observed population outbreaks in response to increased food supply are common across the Aurelia species complex and other metagenic jellyfish species.…”

Section: Food Availability As a Key Driver Of Jellyfish Bloomsmentioning

confidence: 79%

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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“…For the purpose of this study, no phylogenetic analysis was performed to clarify the identity of the specimens from the investigated area. In addition, our dataset consists of data collected before the publication of SCORRANO et al, (2016); therefore, we denoted Aurelia specimens as Aurelia spp. Biometric measurements of jellyfish were performed when they were found in larger numbers.…”

Section: Observations and Estimation Of Schyphomedusae Abundancementioning

confidence: 99%

“…Recently, in the southern and middle Adriatic scyphozoans mass occurrences have been rarely identified (LUČIĆ, D., unpublished data). The exception is the constant high abundance of Aurelia relicta (SCORRANO et al, 2016) in the salt lakes of Mljet Island, Croatia (BENOVIĆ et al, 2000;ALVAREZ COLOMBO et al, 2009, KOGOVŠEK et al, 2012.…”

Section: Introductionmentioning

confidence: 99%

Recent changes (2013-2017) in scyphomedusan fauna in the Boka Kotorska Bay, Montenegro (Southeast Adriatic)

Violić

Kogovšek

Pestorić

et al. 2019

Acta Adriat. (Online)

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A semi- quantitative time series (2013-2017) was used to present the recent events of scyphomedusae appearance and abundance in the Boka Kotorska Bay, Montenegro, Southeast Adriatic. Six meroplanktonic species were recorded: Aurelia spp, Chrysaora hysoscella, Cotylorhiza tuberculata ̧ Discomedusa lobata, Drymonema dalmatinum and Rhizostoma pulmo. Among them, C. hysoscella and D. lobata dominated in the water column during winter and spring, forming dense aggregations in March and May, and February to May, respectively. Our description of the D. lobata blooms are actually the first known records of blooms for this species. C. tuberculata was observed in the Bay principally in August and September. The bloom was occurred only in 2017, being the first information of C. tuberculata mass appearance in this area. We hypothesized that global warming phenomena could trigger the observed changes, and in this respect, long-term trends of sea surface temperature (SST) fluctuations were analysed. The scyphomedusae blooms coincided with high positive SST anomalies, noted in the last seven years for this area. To better understand the mechanisms underlying changes in their phenology and abundance, detailed studies on benthic stages in the Bay are essential.

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UnmaskingAureliaspecies in the Mediterranean Sea: an integrative morphometric and molecular approach

Cited by 546 publications

References 73 publications

New Mediterranean Biodiversity Records 2019

New Mediterranean Biodiversity Records 2019

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

Recent changes (2013-2017) in scyphomedusan fauna in the Boka Kotorska Bay, Montenegro (Southeast Adriatic)

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