Medusozoans reported in Portugal and its ecological and economical relevance

Rodrigues, Tomás; Domínguez-Pérez, Dany; Almeida, Daniela; Matos, Ana Lemos de; Antunes, Agostinho

doi:10.1016/j.rsma.2020.101230

Cited by 8 publications

(7 citation statements)

References 91 publications

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“…6). Despite frequent mass strandings of V. velella (Sibley, 2007;Purcell et al, 2015), little is known about their potential impact on the trophic web; the colonies mainly capture non-motile prey as fish eggs and euphausiid eggs, as well as fish and euphausiid larvae, copepods and cladocerans (Purcell et al, 2015;Zeman et al, 2018;Rodrigues et al, 2020). Moreover, little is known about its ecology (colony and hydromedusa stages) and the ecological impact of their mass stranding.…”

Section: Taxonomic Compositionmentioning

confidence: 99%

Jellyfish diversity, trends and patterns in Southwestern Mediterranean Sea: a citizen science and field monitoring alliance

Gueroun

Piraino

Yahia

et al. 2022

Journal of Plankton Research

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Jellyfish (Cnidaria and Ctenophora) are an essential component of marine ecosystems and represent a potential effect, positive or negative, for several economic activities. Jellyfish blooms and non-indigenous species (NIS) introduction can shift ecological community structure and energy transfer. Despite their importance in ecosystem function and services, knowledge of jellyfish fauna diversity and phenology are largely lacking for the southern Mediterranean Sea. Here, we present an overview of the current state of jellyfish biodiversity in Tunisia. Based on a comprehensive literature survey, historical records and unpublished data, 66 jellyfish species, including 11 non-indigenous species, have been recorded in Tunisia between 1994 and 2020. Additionally, based on field surveys and a citizen science sighting program between 2004 and 2020, we present data on the spatial distribution of 13 conspicuous jellyfish taxa and the phenology of the eight most frequently detected species (Aurelia solida, Cotylorhiza tuberculata, Pelagia noctiluca, Phyllorhiza punctata, Rhizostoma pulmo, Rhopilema nomadica, Olindias muelleri and Velella velella) in Tunisian two ecoregions, the Western Mediterranean and the Tunisian Plateau. The 17 year survey showed a shift in R. pulmo, A. solida and P. noctiluca phenology. Additionally, citizen science revealed an increase in the spatial range of P. punctata (NIS) and the distinct phenologies of populations in the two ecoregions.

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Section: Taxonomic Compositionmentioning

confidence: 99%

Jellyfish diversity, trends and patterns in Southwestern Mediterranean Sea: a citizen science and field monitoring alliance

Gueroun

Piraino

Yahia

et al. 2022

Journal of Plankton Research

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“…These comprise the main body of knowledge. Recent publications from SE Asia, e.g., [9,30,33,34] and America [35][36][37] update and complement them. Several international initiatives were covered in Brotz [10] and Brotz and Pauly [31], but EU efforts emerge from this survey as almost nonexistent (Figure 2), which provides us with a rare opportunity to lay the foundations for a sustainable practice before the establishment of a commercial fishery.…”

Section: Literature Surveymentioning

confidence: 99%

“…In Africa, Adongo [45] described jellyfish belonging to four families (Catostylidae, Chirodropidae, Rhizostomatidae, and Pelagiidae), bycaught in artisanal net fisheries landings in Ghana as a potential resource. In Europe, Cruz [46] described the nonindigenous Blackfordia virginica as a potential food source in Portugal and Rodriguez et al [37] added Cyanea capillata, Cyanea lamarckii, and Rhizostoma luteum to the list of species for a potential fishery. Risk-based approaches to the health and safety of jellyfish (e.g., Catostylus tagi, Aurelia coerulea, Cotylorhiza tuberculata, Rhizostoma pulmo) consumption were developed and reviewed by several groups [24,[47][48][49][50][51], and palatability and potential western markets for jellyfish were tested [14].…”

Section: Literature Surveymentioning

confidence: 99%

“…Brotz [10] listed 39 jellyfish taxa which have been commercially utilized for food purposes. The present review adds several species that show potential for a commercial jellyfish fishery, although they are not yet consumed by humans on a large scale, namely, Rhacostoma atlanticum, Chiropsalmus quadrumanus in Brazil [36], Cyanea capillata, Cyanea lamarckii and Rhizostoma luteum in the eastern Atlantic [37], and Aurelia coerulea, Mnemiopsis leidyi, and Chrysaora hysoscella in European Seas (present review). Most commercially exploited species belong to the order Rhizostomeae, characterized by large and rigid bells, which are more amenable to processing [57].…”

Section: Edible Jellyfish Speciesmentioning

confidence: 99%

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Jellyfishing in Europe: Current Status, Knowledge Gaps, and Future Directions towards a Sustainable Practice

et al. 2021

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Jellyfish are often described as a nuisance species, but as our understanding shifts to more ecosystem-based conceptions, they are also recognized as both important components of marine ecosystems and a resource for humans. Here, we describe global jellyfish fisheries and review production, fishing methods, and applications based on the existing literature. We then focus on future development of a European jellyfish fishery based on current and recent EU research initiatives. Jellyfish have been a staple food in East Asia for eons and now show a potential for non-food applications as well. The main fishing methods are mostly traditional, with set-nets, driftnets, hand-nets, and scoop-nets utilizing small crafts or beach-seines. All require a lot of manual labor, thus providing vital, albeit seasonal, occupation to weaker populations. Larger commercial vessels such as purse seines and trawlers are newly introduced métiers which may enable a larger catch per unit effort and total catch, but pose questions of selectivity, bycatch, vessel stability, and transshipment. Social concerns arising from the seasonality of jellyfish fisheries must be met in SE Asia, Latin America, and in any location where new fisheries are established. In the EU, we recognize at least 15 species showing potential for commercial harvesting, but as of 2021, a commercial fishery has yet to be developed; as in finfish fisheries, we advise caution and recognition of the role of jellyfish in marine ecosystems in doing so. Sustainable harvesting techniques and practices must be developed and implemented for a viable practice to emerge, and social and ecological needs must also be incorporated into the management plan. Once established, the catch, effort, and stock status must be monitored, regulated, and properly reported to FAO by countries seeking a viable jellyfish fishery. In the near future, novel applications for jellyfish will offer added value and new markets for this traditional resource.

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“…Stinging jellyfish pose a global issue due to their threat to human health and their subsequent economic impacts [1][2][3][4][5][6][7][8][9][10]. Cubozoan jellyfish, known for their potent venom, are the class of most concern [4,[11][12][13].…”

Section: Introductionmentioning

confidence: 99%

Use of eDNA to Determine Source Locations of Deadly Jellyfish (Cubozoa) in an Open Coastal System

Morrissey,

Jerry,

Kingsford

2024

Coasts

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Challenges associated with cubozoan jellyfish detection and the limitations of current detection techniques limit the ability of scientists to fill critical knowledge gaps surrounding their ecology. Environmental DNA (eDNA), however, has proven useful as an ecological survey tool to detect and study these deadly jellyfish. This study aimed to leverage the power of eDNA to detect and explore the distribution of the Australian box jellyfish (Chironex fleckeri), encompassing both its medusae and polyp life history stages, within an open coastal bay (Horseshoe Bay) of Magnetic Island, Queensland, Australia. Our investigation focused on a hypothesis concerning the source locations of the jellyfish within Horseshoe Bay and, through a comparison of both life history stage distributions, aimed to determine potential population stock boundaries. eDNA results aligned with the predicted nearshore distribution of medusae. Further, the elusive benthic polyp stage was also detected. These findings confirmed Horseshoe Bay as a source location of the jellyfish. Moreover, our evidence supported a model that the area likely represents a population stock of the species. This adds to growing evidence suggesting some cubozoan jellyfish have population stocks of small spatial scales in both open and relatively closed ecosystems such as estuaries. In conclusion, this study serves as a notable example of eDNA’s ability to resolve critical knowledge gaps surrounding cubozoan ecology and to enhance the management ability of these deadly jellyfish to reduce envenomations.

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Medusozoans reported in Portugal and its ecological and economical relevance

Cited by 8 publications

References 91 publications

Jellyfish diversity, trends and patterns in Southwestern Mediterranean Sea: a citizen science and field monitoring alliance

Jellyfish diversity, trends and patterns in Southwestern Mediterranean Sea: a citizen science and field monitoring alliance

Jellyfishing in Europe: Current Status, Knowledge Gaps, and Future Directions towards a Sustainable Practice

Use of eDNA to Determine Source Locations of Deadly Jellyfish (Cubozoa) in an Open Coastal System

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