Jellyfish Blooms: Ecological and Societal Importance

  title={Jellyfish Blooms: Ecological and Societal Importance},
  author={Jennifer E. Purcell and William M. Graham and Henri J. Dumont},
  booktitle={Developments in Hydrobiology},
With larger human population numbers and their need for recreation, contact between humans and jellyfish is increasing. The pathogenesis of cnidarian stings is discussed here and some of the factors influencing the variability in adverse reactions they produce are mentioned. The pharmakinetics of venom delivery determines the organ site of damage and the extent of abnormality. Since venoms can injure man by allergic or toxic reactions, the differences between these processes is elucidated… 
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
[Causes of jellyfish blooms and their influence on marine environment].
The results showed that jellyfish blooms had a close contact with its physiological structure and life history, which had favorable characteristics including simple body struc- ture, rapid growth, thriving reproduction and short generation interval to tolerate harsh environment better.
Effect of neurotoxic compounds on ephyrae of Aurelia aurita jellyfish
Results highlighted how these compounds reported a high toxicity for marine organisms and exerted their toxic effect on this innovative biological model, which proved to be more sensitive than other marine invertebrates commonly used for ecotoxicological bioassays.
Trophic interactions of the freshwater jellyfish Craspedacusta sowerbii
The results show that both food chains can co-occur in lakes because of a weak interaction between these top predators, fish and jellyfish, with simultaneous impacts on the zooplankton structure.
Jelly surge in the Mediterranean Sea: threat or opportunity?
The rise in water temperature in the Mediterranean Sea, and associated migrations of temperate marine biota, are occurring in the context of a global warming causing an expansion of the tropical
Jellyfish blooms and ecological interactions
Research highlights presented in this volume include studies on jellyfish blooms at various spatiotemporal scales, jellyfish population dynamics, physiology and ecology, interactions between jellyfish and predators, Jellyfish age, growth and diversity, and the fate of jellyfish biomass.
Substrate choice and settlement preferences of planula larvae of five Scyphozoa (Cnidaria) from German Bight, North Sea
It is suggested that the early developmental stages in the cnidarian life cycle, the planula larvae, and the polyps, play the key role in the development of jellyfish outbursts.
Predation assessment of the invasive ctenophore Mnemiopsis leidyi in a French Mediterranean lagoon
The less mobile preys such as mollusks and barnacles were the most impacted and the ctenophore predation pressure on the zooplankton assemblage could lead at time to a release of grazing pressure on phytoplankon and favor the eutrophication of the lagoon.
Salinity and temperature influence on Scyphozoan jellyfish abundance in the Western Gulf of Mexico
Increasing jellyfish abundance has been documented worldwide, though few studies have used standardized long-term data to examine jellyfish abundance across environmental gradients. Such datasets can


Evidence is presented which indicates that all three of these forms are casual visitors to the inland coastal waterways of New Jersey, and the three ctenophores are shown to be able to withstand salinities in the bays which are considerably below those of the ocean lanes from which the animals came.
Ecological Studies on the Jelly-fish, Aurelia aurita in Urazoko Bay, Fukui Prefecture-XIII
The author was able to collect fairly sufficient data on the monthly changes in the bell-length composition of this Scyphomedusa, enough to discuss its breeding season, growth and longevity.
Chemical defense in a scyphomedusa
S. meleagris subjected to a simulated small predator bite released clouds of nematocysts which drove off small fish (potential predators), but did not drive off the associated predacious crabs, which appear to be forms of chemical defense.
Feeding in coronate medusae (class scyphoza, order coronatae)
Observations of the unusual feeding behavior of Nausithoe punctata Kolliker and Linuche unguiculata (Schwartz) are presented and it is likely that Atolla spp.
Marine flora and fauna of the Northeastern United States. Protozoa : Sarcodina : amoebae
This manual contain8 a key to 15 families of freshwater and marine amoebae, of which only one, the Echinamoebidac, docs not contain a known marine species. Diagnostic features for 49 genera, of which
Ultrastructural observations on prey capture and digestion in the scyphomedusa Aurelia aurita
Aurelia aurita medusae are able to catch their prey with their entire body surface and discharged nematocysts on the prey's skin indicate different functions of the two types.
Biochemical composition of ctenophores