Zoë Hilton

Zoë Hilton
Cawthron Institute | CI · Aquaculture Group

BA, BSc(Hons), PhD

About

28
Publications
4,504
Reads
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219
Citations
Additional affiliations
February 2013 - August 2013
IRTA Institute of Agrifood Research and Technology
Position
  • Postdoctoral Fellow (UNESCO L'Oreal International Fellowship)
December 2010 - present
Cawthron Institute
Position
  • Researcher
December 2010 - December 2018
Cawthron Institute
Position
  • Researcher

Publications

Publications (28)
Preprint
Background: In recent years, the aquaculture industry of Crassostrea gigas has been severely impacted by geographically widespread outbreaks of a polymicrobial disease, the Pacific Oyster Mortality Syndrome (POMS). The aetiology of these recurring summer mortality events and the disease progression have notably been recently described in France, re...
Article
Feed conversion ratio (FCR) is the ratio between feed intake and weight gain. By improving FCR within a species, feed intake can be reduced for the same amount of growth, thus reducing feed costs and environmental impacts. To enable selection for improved FCR, it is important to understand how FCR differs within a species and what factors might als...
Article
The development and use of probabilistic models, particularly Bayesian networks (BN), to support risk‐based decision making is well established. Striking an efficient balance between satisfying model complexity and ease of development requires continuous compromise. Codesign, wherein the structural content of the model is developed hand‐in‐hand wit...
Poster
The haplosporidian parasites Bonamia spp. have had significant impacts on both farmed and wild populations of flat oysters around the world (Doonan et al., 1994; Engelsma et al., 2014; Carnegie et al., 2016). •Bonamiosis is an important protozoan disease that affects haemocytes of oysters. Bonamia microcells have been found within the haemocytes an...
Article
The major cultured mussel species Perna canaliculus is now supported by hatchery production, providing the opportunity to explore and optimize environmental parameters to enhance production. Other cultured bivalve larvae have demonstrated performance that is directly correlated to the aragonite saturation state (Ωar) of their tank water, with low o...
Article
The flat oyster, Ostrea chilensis, native to New Zealand (NZ) and Chile is considered an important ecological, cultural and fisheries resource. Currently, commercial landings of this species in NZ are restricted due to low population numbers caused by ongoing mortalities resulting from the presence of the haplosporidian parasite, Bonamia exitiosa....
Article
Farmed adult Greenshell™ mussels were exposed to a range of conditions immediately after harvest to evaluate the effects on emersion survival and the implications for live transport. Two experiments were performed, coinciding with the mussel harvest season during summer and winter 2017. In the summer experiment, a wide range of conditions were test...
Presentation
Pacific oyster (Crassostrea gigas) farming in New Zealand (NZ) began in the 1970’s and has grown into a NZ$ 30 million industry, producing over 2,000 t per year. NZ aquaculture is a fast-growing sector estimated to be worth over NZ$ 500 million per year, with a strategic goal of NZ$ 1 billion in sales by 2025. In this context, selective breeding, d...
Conference Paper
Full-text available
Aquaculture is an important primary industry for New Zealand and the three flagship species, Greenshell™ mussels (Perna canaliculus), Pacific oysters (Crassostrea gigas), and Chinook salmon (Oncorhynchus tshawytscha), currently produce over NZD $400 million p.a. in export revenue (www.aquaculture.org.nz). The aquaculture industry has set an ambitio...
Article
Full-text available
Cultivation of the geoduck Panopea zelandica (Quoy & Gaimard, 1835) requires knowledge on embryonic development to produce spat in hatcheries. This study investigated the development of P. zelandica embryos at 158C and 35 ppt and the optimal sperm:egg ratios for fertilization under hatchery conditions. Panopea zelandica broodstock were induced to s...
Article
In New Zealand, three quarters (by value) of national aquaculture exports are based on the production of an endemic species, the green-lipped mussel, Perna canaliculus, yet there remains a paucity of information describing its underpinning biology. The majority of seed stock is still derived from wild capture from two main geographic locations, how...
Article
Full-text available
Geoduck clams (Panopea spp.) are the longest-lived and largest deep burrowing bivalve. Their unique morphology allows them to live buried in the sediment at depths of up to 1m. The endemic New Zealand geoduck (Panopea zelandica Quoy and Gaimard, 1835) has recently been identified as a potential species for aquaculture. However, very little is known...
Article
The New Zealand geoduck clam Panopea zelandica (Quoy and Gaimard, 1835) is among the largest burrowing clams throughout the world. However, the effects of size scaling on physiology have not been studied for any geoduck species. In this study, we determined the allometric coefficients of respiration rate (RR) and clearance rate (CR) for P. zelandic...
Conference Paper
Full-text available
There is an urgent need to develop sub-lethal stress detection tools to differentiate health status and forecast adult success, in the early-life of aquaculture shellfish species. In addition, the NZ coastal seascape is experiencing rapid change whereby numerous biotic and abiotic stressors are likely to influence biological processes, therefore bo...
Conference Paper
Full-text available
OsHV-1 is a proliferating virus that causes mortality in the larvae and juveniles of several bivalve species including the Pacific oyster Crassostrea gigas, Ostrea edulis, Ruditapes decussatus, R. philippinarum and Pecten maximus. The virus can be found in adult bivalves but without any mortality. Infected larvae show a reduction in feeding and swi...
Conference Paper
The Greenshell mussel, Perna canaliculus, represents a key component of the benthic ecosystem and supports New Zealand’s largest aquaculture industry. This study explores the effects of aragonite saturation (ΩA) manipulation upon embryogenesis and larval performance of P. canaliculus, providing an indication of the extent to which commercial hatche...
Article
Geoduck clams are amongst the most valuable cultured shellfish available on the world market, driving interest in the establishment of the native New Zealand species, Panopea zelandica (Quoy & Gaimard, 1835), as a candidate for aquaculture. A critical element of domestication is the effective management of breeding stock to optimize gamete and offs...
Conference Paper
Full-text available
Heart rate monitoring has been shown to be a valuable tool for assessing health in bivalves. With the advancement in sensor technology, new heart beat monitoring approaches have evolved from invasive to non-invasive method and from short distance to long distance. Heart beats of bivalves were initially recorded with impedance technology, which invo...
Article
In most animals, significant increases in metabolic rate are due to activity and to feeding (known as apparent specific dynamic action). We determined the energetic costs of activity and feeding in adult green-lipped mussels (Perna canaliculus). Maximal metabolic rate was determined, using closed-chamber respirometry, during byssus re-attachment, d...
Article
Full-text available
The heart is acutely sensitive to temperature in aquatic ectotherms and appears to fail before any other organ as the thermal maximum is reached, although the exact cause of this failure remains unknown. The heart is highly aerobic and therefore dependent on mitochondrial oxidative phosphorylation (OXPHOS) to meet energy requirements, but the role...
Article
Full-text available
Physiological adaptation to divergent environments is a poorly understood factor in adaptive radiation. New Zealand (NZ) triplefin fishes (Tripterygiidae) have undergone a radiation associated with habitat diversification within NZ's coastal waters, where 26 closely-related endemic species occur in overlapping but divergent habitats, partitioned by...
Article
1. Integrative ecophysiological studies of closely related taxa are required to explore the causative factors that determine species distributions, and can offer insight into the selective forces that may have driven evolutionary divergence. 2. We examined the distribution, abundance, size and microhabitat associations of two sympatric sister-speci...
Article
Full-text available
The pelagic yellowtail kingfish Seriola lalandi has become a target species for aquaculture in Asia and Australasia. Australasian production is reliant on larviculture from eggs of captive brood stock; however, knowledge regarding the nutritional requirements of larvae of this species is still scarce, particularly in relation to lipids. As a first...

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Projects

Projects (6)
Project
Grow and secure shellfish aquaculture industry in New Zealand Support hatchery spat production by enabling selective breeding, optimizing hatchery technologies and microalgal production. Diversify emerging shellfish species portfolio
Project
Physiomar is a triennial international forum for discussion of recent advances in all aspects of the physiology of aquatic invertebrates. The conference has no parallel sessions and is usually attended by participants from over 25 countries. It is an opportunity to maximise exchange of knowledge and expertise, and encourage collaboration in all areas including functional biology, growth, nutrition, reproduction, and adaptation to an ever-changing environment. The Australia New Zealand Marine Biotechnology Society (ANZMBS) aims to advance marine biotechnology in Australia and New Zealand through the exchange of ideas and collaborations between researchers, biotechnologists, industry and government colleagues and other interested parties. This will be the 4th ANZMBS Conference.