Jellyfish swarms, tourists, and the Christ-child

@article{Dawson2004JellyfishST,
  title={Jellyfish swarms, tourists, and the Christ-child},
  author={Michael N. Dawson and Laura Eugenia Acosta Mart{\'i}n and Lolita Penland},
  journal={Hydrobiologia},
  year={2004},
  volume={451},
  pages={131-144}
}
One of the most remarkable sights in the Western Pacific is a perennial swarm of 1.5 million golden medusae (Mastigias sp.) crowded into a land-locked marine lake in Palau, Micronesia. This `Jellyfish Lake' became a popular off-gassing stopover for SCUBA divers and a destination in its own right for non-diving tourists in the mid-1980s. Since then, tourism in Palau has boomed, increasing 500% between 1986 and 1997. However, in December 1998, the golden-medusae disappeared. Apart from patchy… 
Jellyfish distribution and abundance in relation to the physical habitat of Jellyfish Lake, Palau
Abstract: Animals often select for habitats that increase their chance of survival by balancing the need to acquire food, reproduce and avoid predation. Perennial blooms of golden jellyfish
Ecological and acoustic investigations of jellyfish (Scyphozoa and Hydrozoa)
TLDR
The abundance of medusae in regions of the North Sea to climatic fluctuations, as quantified by the North Atlantic Oscillation Index, is linked and shown to be important indicators of regional ecosystem change.
Jellyfish blooms: Crambionella orsini (Scyphozoa: Rhizostomeae) in the Gulf of Oman, Iran, 2002–2003
  • R. Daryanabard, M. Dawson
  • Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 2008
In 2002, a jellyfish bloom occurred throughout the Gulf of Oman and the Persian Gulf causing decreased catch in artisanal and industrial fisheries, damage to fishing gear, interrupted operation of
First record of Mastigias sidereus Chun, 1896 and Phyllorhiza punctata von Lendenfeld, 1884 (Cnidaria: Scyphozoa) from Sri Lanka
TLDR
In the “Waya-jel-Survey” conducted at several coastal localities of Sri Lanka, a Mastigias species was netted off the Laccadive Sea coast and Bay of Bengal coast from 2017 to 2020, while a Phyllorhiza species was sampled off the Dorset Sea coast in 2017 and 2018, both had never been recorded from Sri Lanka.
Influence of pelagic invertebrate predators on the zooplankton in the Baltic Sea and the North Sea
The annual cycle of abundance and distribution of the scyphozoan medusae Aurelia aurita and Cyanea capillata was studied in the Bornholm Basin (central Baltic Sea) in 2002. Seasonal changes in prey
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
TLDR
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.
Marine Lake Mogilnoe (Kildin Island, the Barents Sea): one hundred years of solitude
TLDR
It is argued that the idealised model of an isolated steady-state ecosystem can be applied to a marine lake with caution and a model of fluctuating abiotic environment and partial biological isolation portrays the real situation better.
Marine lakes of karst islands in Ha Long Bay (Vietnam)
Ha Long Bay in North Vietnam is characterized by karst towers and bigger islands totalling more than 3000 isles. Karst processes carved hundreds of caves out of the limestone and contributed to the
Five new subspecies of Mastigias (Scyphozoa: Rhizostomeae: Mastigiidae) from marine lakes, Palau, Micronesia
  • M. Dawson
  • Environmental Science
    Journal of the Marine Biological Association of the United Kingdom
  • 2005
TLDR
Each marine lake population in Palau is described as a new subspecies of Mastigias cf.
...
...

References

SHOWING 1-10 OF 41 REFERENCES
Long‐distance horizontal migrations of zooplankton (Scyphomedusae: Mastigias)1
Perennial swarms of sexually immature medusae of the germs Mastigias occur at high densities in three marine lakes in Palau, Western Caroline Islands. Numbers per lake are 1.76 ± 0.10 × 105, 1.61 ±
In situ estimation of ephyrae liberated from polyps of Aurelia aurita using settling plates in Tokyo Bay, Japan
The continuous changes in the number of newly established polyps of Aurelia aurita (L.) on settling plates under natural conditions were observed from August 1998 to September 1999 in Tokyo Bay,
Reproduction and life history strategies of the common jellyfish, Aurelia aurita, in relation to its ambient environment
TLDR
The aims of this review are to determine the role of reproduction and life history strategies of the benthic and pelagic phases of A. aurita in governing populations of medusae, with special attention given to the dynamic interaction between A. Aurita and its surrounding physical and biological environment.
Sun-compass migration by Aurelia aurita (Scyphozoa): population retention and reproduction in Saanich Inlet, British Columbia
TLDR
Observations of spawning A. aurita in these swarms suggest that sun-compass migration and aggregative behavior may have evolved to facilitate reproduction and to maintain the population within this fjord throughout the year.
Daily photosynthesis, respiration, and carbon budgets in a tropical marine jellyfish (Mastigias sp.)
TLDR
The carbon budgets calculated for these lake medusae indicate that carbon fixed photosynthetically by zooxanthellae and made available to the host may satisfy up to 100% of the host's daily metabolic carbon demand (CZAR).
The physical, chemical, and biological characteristics of a stratified, saline, sulfide lake in Palau1
TLDR
An unusual horizontal and vertical swimming behavior of Mastigias appears related to light and to the nutrient requirements of its symbiotic zooxanthellae, and other zooplankton show normal vertical diurnal migration patterns.
Microscopic observations of recovery in the reef-building scleractinian coral, Montastrea annularis, after bleaching on a Cayman reef
TLDR
Once reconstituted, the previously bleached gastrodermis, repopulated with algal symbionts, is indistinguishable from unbleached tissue in the coral colony.
Ecological and socioeconomic impacts of 1998 coral mortality in the Indian Ocean: an ENSO impact and a warning of future change?
TLDR
If the observed global trends in temperature rises continue, there will be an increased probability of a recurrence of the phenomenon observed in 1998 on the coral reefs of the Indian Ocean, as well as in other parts of the tropical oceans in coming years.
Changes in zooxanthellae characteristics in the coral Stylophora pistillata during the 1998 bleaching event
TLDR
It is suggested that pigment degradation in zooxanhellae and subsequent cell shrinkage, rather than zooxanthellae expulsion, was the mechanism involved in S. pistillata bleaching.
...
...