Jellyfish in ecosystems, online databases, and ecosystem models

  title={Jellyfish in ecosystems, online databases, and ecosystem models},
  author={Daniel Pauly and William M. Graham and Simone Libralato and Lyne Morissette and M. L. Deng Palomares},
There are indications that pelagic cnidarians and ctenophores (‘jellyfish’) have increased in abundance throughout the world, or that outbreaks are more frequent, although much uncertainty surrounds the issue, due to the scarcity of reliable baseline data. Numerous hypotheses have been proposed for the individual increases or outbreaks that are better documented, but direct experimental or manipulative studies at the ecosystem scale cannot be used for testing them. Thus, ecological modeling… 
Inclusion of jellyfish in 30+ years of Ecopath with Ecosim models
A review of the functional role of jellyfish in Ecopath with Ecosim (EwE) models by Pauly et al. [Pauly, D., Graham, W., Libralato, S., Morissette, L., and Deng Palomares, M. L. 2009. Jellyfish in
Jellyfishes in a changing ocean
  • N. Henschke
  • Environmental Science
    Predicting Future Oceans
  • 2019
Not all jellyfish are equal: isotopic evidence for inter- and intraspecific variation in jellyfish trophic ecology
Investigating the trophic ecology of three co-occurring scyphozoan jellyfish species within a temperate, coastal food-web in the NE Atlantic supports previous assertions that jellyfish require more robust inclusion in marine fisheries or ecosystem models.
Increasing jellyfish populations: trends in Large Marine Ecosystems
Of the 66 LMEs defined thus far that cover the world’s coastal waters and seas, trends of jellyfish abundance after 1950 (increasing, decreasing, or stable/variable) were identified for 45, with variable degrees of confidence.
Ecological and Societal Benefits of Jellyfish
This discussion ranges from the role of jellyfish in carbon capture and advection to the deep ocean through to the creation of microhabitat for developing fishes and the advancement of citizen science programmes.
Resolving the role of jellyfish in marine food webs
To understand the context in which jellyfish consumption occurred a high throughput sequencing (HTS) approach using two universal primers was developed, and it was shown that jellyfish were consumed as part of a generalised diet during summer months.
Extension of methods for jellyfish and ctenophore trophic ecology to large-scale research
Science has rapidly expanded its frontiers with new technologies in the 20th Century. Oceanography now is studied routinely by satellite. Predictive models are on global scales. At the same time,
Beyond the jellyfish joyride and global oscillations: advancing jellyfish research
Recommendations for advancing jellyfish research include directing research toward better managing jellyfish impacts, expanding research into socio-economic consequences to grow the money available for research, building more operational and ecosystem models for tactical and strategic management, filling in the gaps in biological knowledge for supporting models, improving surveillance using observing systems and making Jellyfish research more rigorous.
Jellyfication of marine ecosystems as a likely consequence of overfishing small pelagic fishes: Lessons from the Benguela
Changes in two contrasting ecosystems of the Benguela upwelling region, one dominated at mid-trophic level by jellyfishes (Namibia, northern Benguela ecosystem, where small pelagic fish abundance has
Role of jellyfish in the plankton ecosystem revealed using a global ocean biogeochemical model
Abstract. Jellyfish are increasingly recognised as important components of the marine ecosystem, yet their specific role is poorly defined compared to that of other zooplankton groups. This paper


Climate effects on formation of jellyfish and ctenophore blooms: a review
  • J. Purcell
  • Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 2005
In eleven species studied from subtropical, temperate and subarctic environments, warm temperatures were related to large population sizes; three scyphozoan species in the North Sea, and one mesopelagic hydromedusan were exceptions to that trend.
Increases in jellyfish biomass in the Bering Sea: implications for the ecosystem
The hypothesis that the presence of these large carnivores has affected fisheries resources, either through direct predation on larval stages, or through compe- tition for zooplankton prey is examined.
Anthropogenic causes of jellyfish blooms and their direct consequences for humans: a review
Although recent articles state that jellyfish populations are increasing, most available evidence shows that jellyfish abundances fluctuate with climatic cycles. Reports of increasing prob- lems with
Jellyfish blooms: are populations increasing globally in response to changing ocean conditions?
  • C. Mills
  • Environmental Science
  • 2004
Over recent decades, man's expanding influence on the oceans has begun to cause real change and there is reason to think that in some regions, new blooms of jellyfish are occurring in response to some of the cumulative effects of these impacts.
Predation on pelagic coelenterates: a review
  • M. Arai
  • Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 2005
Coelenterates (cnidaria and ctenophores) are well recognized as predators in food webs of marine ecosystems but are less often considered as prey but may provide sources of energy comparable to better recognized prey such as arthropods.
Ecopath, Ecosim, and Ecospace as tools for evaluating ecosystem impact of fisheries
Since its development in the early 1980s, the mass-balance approach incorporated in the Ecopath software has been widely used for constructing food-web models of marine and other ecosystems.
Jellyfish overtake fish in a heavily fished ecosystem
Interactions of pelagic cnidarians and ctenophores with fish: a review
Medusae, siphonophores and ctenophores (here grouped as `pelagic coelenterates') interact with fish in several ways. Some interactions are detrimental to fish populations, such as predation by