Event Details

Date:
Thursday, 16 May 2019 - Thursday, 16 May 2019
Time:
1:00 pm - 2:00 pm
Room:
257
UQ Location:
Goddard Building (St Lucia)
URL:
https://marine.uq.edu.au/content/seminar-series
Event category(s):

Event Contact

Name:
Gabriella Scata
Phone:
490887277
Email:
g.scata@uq.edu.au
Org. Unit:
Marine Science

Event Description

Full Description:
Hi everyone,
The Centre for Marine Science is hosting a seminar next Thursday 16th May 2019, at 1pm in Goddard 257 (building 8).

Our speakers are two students, Clarisse Louvard and Amy Streets.
Please find the details of their talks below and poster on our Facebook page 'Uq Marine'.

Lost in transmission: the role of planktonic molluscs in life-cycle completion of trematodes infecting large pelagic fishes
Clarisse Louvard, PhD Student at Marine Parasitology laboratory

Trematodes (parasitic flatworms) of the superfamily Hemiuroidea are major endoparasites of commercially important pelagic fishes like tunas.
Their complex life-cycles involve 34 hosts; they presumably infect a gastropod mollusc first, and then are transmitted along the food chain as metacercariae until consumed by their definitive fish-hosts. Despite their richness in pelagic fishes, however, no full pelagic trematode life-cycle has ever been elucidated. In particular, identities of their first-intermediate hosts remain a mystery.
My project aims to resolve this knowledge gap. We hypothesise that these hosts are a combination of various pelagic gastropod groups.
Sampling at Lizard, Heron and Stradbroke islands examining planktonic, neustonic (blue dragons) and pleustonic (violet snails) molluscs, as well as the cnidarian (by-the-wind sailors and Portuguese man-o-war) and chaetognathan faunas, yielded a surprising diversity of metacercariae
spanning at least two families and several species. We demonstrate for the first time the unexpected role of these molluscs as second, rather than first, intermediate hosts, and hypothesise that the neuston and pleuston play a significant and under-appreciated role in the transmission of this parasite fauna.

Colour vision in mantis shrimp
Amy Streets, PhD Student at Sensory neurobiology group, QBI
Stomatopods, or mantis shrimp, have the most complex retina in the world known so far, with independent eye movements, the potential for trinocular vision, receptors for different types of polarized light, and up to 12 colour receptors. However, behavioural experiments show that these animals have poor colour discrimination. So what are they doing with 12 spectral sensitivities?

We hope to see you there and would appreciate if you can indicate your attendance (Facebook page 'UQ Marine' - events section).
We are also looking for presenters for the next semester, so if you are a honours, bachelors' masters or PhD student carrying out research in the marine field at Uq, we would love to hear from you!
Thank you!
The Centre for Marine Sciences

Directions to UQ

Google Map:
Directions:
To St Lucia Campus, UQ Ipswich, and UQ Gatton.

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