‘Where there is an ocean, a marine biologist is never on holiday‘ (Bond, James Bond, 1977)
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Experiment testing if and how the presence of Gracilaria seaweeds affects survival of seagrass transplants
Bull kelp holdfast without epifauna
Bull kelp holdfast without infauna
Bull kelp holdfast with epifauna
Bull kelp holdfast with infauna
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A massive mat of the invasive seaweed Gracilaria vermiculophylla in Virginia
How we try to attract students to phycology and invasion biology
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‘Mudflat’ in Avon Heathcote, New Zealand, turned into Ulva and Gracilaria meadows (attached to the cockle Austrovenus that is buried in the sediment)
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Graveyard of shells from the invasive snail Batillaria australis in Swan River Estuary, Perth

 

 

 

Shark encounter
Shark encounter
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Co-existence of mussels and invasive Undaria kelps; facilitation or similar habitat requirements?
A long habitat cascade in Avon Heathcote estuary, Austrovenus (bivalve) provide habitat to Gracilaria (red seaweed) that provide habitat to Ulva (green Seaweed) that provide habitat to Micrelenchus (snail) that provide habitat to Gigartina (red seaweed)....
A long habitat cascade in Avon Heathcote Estuary; Austrovenus (bivalve) provide habitat to Gracilaria (red seaweed) that provide habitat to Ulva (green seaweed) that provide habitat to Micrelenchus (snail) that provide habitat to Gigartina (red seaweed)….
Cockle predation experiment (here in open cages)
Cockle predation experiment (comparing survival of Austrovenus in open vs. closed cages)
Kelp clearance experiments
Removing kelps to simulate how storms affect community succession along a latitudinal gradient
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Blue crabs are common in seaweed mats in intertidal mudflats, Virginia (these mats are dominated by invasive Codium fragile and Gracilaria vermiculphylla and native Ulva species)
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Gracilaria seaweed transplants (with orange tag) attracts 100s of trochid snails from the surrounding seagrass bed
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Doing biomechanical break tests on the kelp Ecklonia radiata on a low budget, in Kalbarri, Western Australia, 2000. A decade later the extensive local kelp forest was wiped out by a marine heatwave.
Laboratory experiment testing for interaction effects between elevated temperatures, invasive snails and drifting seaweeds on seagrass performance
Laboratory experiment testing for interaction effects between elevated temperatures, invasive snails and drifting seaweeds on seagrass performance
Tagging Caulerpa species in Western Australia
Tagging different Caulerpa seaweed species in Western Australia
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A few fronds of the invasive seaweed Undaria pinnatifida (front) within a large bed of bull kelps (Durvellia)
A facilitation cascade that is not size structured: A 3 cm cockle (buried in sediment) faciliate a 1.75 m Ulva seaweed that facilitate a 1.71 m researcher