scholarly journals The ecology of Scyphozoan jellyfish in Lake Illawarra

2006 ◽  
Vol 21 (2) ◽  
pp. 118 ◽  
Author(s):  
Kylie A. Pitt ◽  
Klaus Koop ◽  
David Rissik ◽  
M. J. Kingsford
Keyword(s):  
Scyphozoan Jellyfish ◽  
Lake Illawarra

scholarly journals Shorter, warmer winters may inhibit production of ephyrae in a population of the moon jellyfish Aurelia aurita

Hydrobiologia ◽  
2020 ◽  
Author(s):  
Alexandra Loveridge ◽  
Cathy H. Lucas ◽  
Kylie A. Pitt
Keyword(s):  
Incubation Time ◽  
Life Stage ◽  
Aurelia Aurita ◽  
The Moon ◽  
Minimum Period ◽  
Moon Jellyfish ◽  
Winter Conditions ◽  
Scyphozoan Jellyfish ◽  
Significant Production ◽  
Planula Larvae

AbstractScyphozoan jellyfish blooms display high interannual variability in terms of timing of appearance and size of the bloom. To understand the causes of this variability, the conditions experienced by the polyps prior to the production of ephyrae in the spring were examined. Polyps reared from planula larvae of Aurelia aurita medusae collected from southern England (50°49′58.8; − 1°05′36.9) were incubated under orthogonal combinations of temperature (4, 7, 10 °C) and duration (2, 4, 6, 8 weeks), representing the range of winter conditions in that region, before experiencing an increase to 13 °C. Timing and success of strobilation were recorded. No significant production of ephyrae was observed in any of the 2- and 4-week incubations, or in any 10 °C incubation. Time to first ephyra release decreased with longer winter incubations, and more ephyrae were produced following longer and colder winter simulations. This experiment indicates that A. aurita requires a minimum period of cooler temperatures to strobilate, and contradicts claims that jellyfish populations will be more prevalent in warming oceans, specifically in the context of warmer winter conditions. Such investigations on population-specific ontogeny highlights the need to examine each life stage separately as well as in the context of its environment.

scholarly journals Observations on the Feeding of Drymonema dalmatinum in the Gulf of Trieste

Diversity ◽  
2021 ◽  
Vol 13 (4) ◽  
pp. 163
Author(s):  
Saul Ciriaco ◽  
Lisa Faresi ◽  
Marco Segarich
Keyword(s):  
Mediterranean Sea ◽  
Adriatic Sea ◽  
Gulf Of Trieste ◽  
The Mediterranean ◽  
Scyphozoan Jellyfish

The largest scyphozoan jellyfish of the Mediterranean Sea, Drymonema dalmatinum was first described by Haeckel [1] from material collected off the Dalmatian coast of the Adriatic Sea [...]

scholarly journals The health of Lake Illawarra - a status report

2006 ◽  
Vol 21 (2) ◽  
pp. 203
Author(s):  
R. J. Morrison ◽  
R. J. West
Keyword(s):  
Status Report ◽  
Lake Illawarra

scholarly journals Fish biodiversity in Lake Illawarra: A review of three recent surveys

2006 ◽  
Vol 21 (2) ◽  
pp. 168
Author(s):  
R. J. Williams ◽  
B. Louden ◽  
M. Jones
Keyword(s):  
Fish Biodiversity ◽  
Lake Illawarra

scholarly journals Trace metals in sediments from Lake Illawarra, New South Wales, Australia

2006 ◽  
Vol 21 (2) ◽  
pp. 217 ◽  
Author(s):  
Bryan E. Chenhall ◽  
Brian G. Jones ◽  
Craig R. Sloss ◽  
Mark O'Donnell ◽  
Marrack Payne ◽  
...  
Keyword(s):  
Trace Metals ◽  
New South ◽  
New South Wales ◽  
South Wales ◽  
Lake Illawarra
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