Islay Marsden | |
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Institutions | University of Canterbury |
Islay Diane Marsden is a New Zealand academic marine biologist and toxicologist,and is a professor emerita at the University of Canterbury. Marsden's research focuses on Crustacea and bivalves. She has researched physiology of oxygen uptake and energy use,and is also interested in environmental factors that affect survival and reproduction of estuarine species,and the cultural values of estuarine habitats.
Marsden is a marine biologist and toxicologist. She is interested in physiological ecology of marine invertebrates,and focuses especially on molluscs and Crustacea. She has worked on understanding adaptations that allow survival in intertidal habitats,looking at traits such as oxygen uptake,and energy use. [1] She has also worked on how environmental factors such as microplastics,heavy metals,and toxins from certain dinoflagellates have on the reproduction and survival of marine and estuarine species. [1] She has also published on the use of marine invertebrate populations as indicators of environmental stress. [1] Marsden is interested in mahinga kai (the value of natural resources [2] ) and the cultural values of estuaries and beaches in New Zealand. [3]
Marsden completed her PhD at the University of London in 1974. [4] She then joined the faculty of the University of Canterbury,rising to full professor. [5] She was appointed professor emerita in 2019. [6] [1] Marsden is on the board of the Avon-Heathcote Estuary Ihutai Trust. [3] She is on the international advisory board of the Journal of Biological Education,and was a general council member of the New Zealand Marine Sciences Society until 2020. [7] [8]
The New Zealand pea crab, is a species of small, parasitic crab that lives most commonly inside New Zealand green-lipped mussels. Adult females are about the size and shape of a pea, while adult males are smaller and flatter. Adult New Zealand pea crabs are completely reliant on their host mussel for shelter and food, which it steals from the mussel's gills. The New Zealand pea crab is found throughout New Zealand and can infect up to 70% of natural populations. These crabs are of concern to green-lipped mussel aquaculture because they reduce the size and growth of mussels, although infected mussels can be harvested and consumed.
The blue mussel, also known as the common mussel, is a medium-sized edible marine bivalve mollusc in the family Mytilidae, the mussels. Blue mussels are subject to commercial use and intensive aquaculture. A species with a large range, empty shells are commonly found on beaches around the world.
Intertidal ecology is the study of intertidal ecosystems, where organisms live between the low and high tide lines. At low tide, the intertidal is exposed whereas at high tide, the intertidal is underwater. Intertidal ecologists therefore study the interactions between intertidal organisms and their environment, as well as between different species of intertidal organisms within a particular intertidal community. The most important environmental and species interactions may vary based on the type of intertidal community being studied, the broadest of classifications being based on substrates—rocky shore and soft bottom communities.
The Estuary of the Heathcote and Avon Rivers / Ihutai is the largest semi-enclosed shallow estuary in Canterbury and remains one of New Zealand's most important coastal wetlands. It is well known as an internationally important habitat for migratory birds, and it is an important recreational playground and educational resource. It was once highly valued for mahinga kai.
The smooth toadfish is a species of fish in the pufferfish family Tetraodontidae. It is native to shallow coastal and estuarine waters of southeastern Australia, where it is widespread and abundant. French naturalist Christophe-Paulin de La Poix de Fréminville described the species in 1813, though early records confused it with its close relative, the common toadfish. The two are the only members of the genus Tetractenos after going through several taxonomic changes since discovery.
Geukensia demissa is a species of mussel, a marine bivalve mollusk in the family Mytilidae, the true mussels. This species is native to the Atlantic coast of North America. The common names for this species include ribbed mussel, Atlantic ribbed marsh mussel and ribbed horsemussel. However, the common name ribbed mussel is also used for the Southern Hemisphere mussel Aulacomya atra. The appearance of the shell is grooved and oval in shape. The interior of this mussel is tinted purple.
Pollution-induced community tolerance (PICT) is an approach to measuring the response of pollution-induced selective pressures on a community. It is an eco-toxicological tool that approaches community tolerance to pollution from a holistic standpoint. Community Tolerance can increase in one of three ways: physical adaptations or phenotypic plasticity, selection of favorable genotypes, and the replacement of sensitive species by tolerant species in a community.
Azadinium spinosum is a species of dinoflagellates that produces azaspiracid toxins, particularly AZA 1, AZA 2 and an isomer of AZA 2.
Andrea Casandra Alfaro is an American-New Zealand aquaculture and marine ecology academic. She is currently a full professor at the Auckland University of Technology.
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Catherine Mary Reid is a New Zealand paleontologist, and is a full professor at the University of Canterbury, specialising in palaeogeography of waterways and the evolution and ecology of bryozoans.
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Aisling Dominique O'Sullivan is an Irish–New Zealand academic, and is a full professor at the University of Canterbury, specialising in ecological engineering for removal of heavy metals and nutrients from wastewater, in urban and rural environments and as part of mining remediation.