About
9
Publications
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56
Citations
Introduction
Current institution
Additional affiliations
February 2021 - present
May 2015 - July 2020
Position
- PhD Student
Description
- Thesis topic: Investigating spinal curvature in farmed New Zealand king salmon (Oncorhynchus tshawytscha)
February 2014 - November 2014
Position
- Honours Student
Description
- Dissertation: Early development of the New Zealand freshwater crayfish Paranephrops zealandicus (Decapoda: Parastacidae): Implications for aquaculture
Education
May 2015 - July 2019
February 2014 - November 2014
March 2011 - November 2013
Publications
Publications (9)
Anthropogenic vectors (transfer mechanisms) can facilitate the introduction and spread of aquatic disease in marine farming regions. Preventing or interrupting pathogen transfers associated with movements of these vectors is key to ensuring productivity and profitability of aquaculture operations. However, practical methods to identify and manage v...
Chinook salmon ( Oncorhynchus tshawytscha ) farmed in New Zealand are known to develop abnormal spinal curvature late in seawater production. Its cause is presently unknown, but there is evidence to suggest a neuromuscular pathology. Using magnetic resonance imaging (MRI), we evaluated the relationship between soft tissue pathology and spinal curva...
The effect of feeding restricted rations was investigated in two different size classes of Chinook (King) salmon (Oncorhynchus tshawytscha). Smaller individuals (725 g initial mean weight) were fed with 100% (satiation, SR1), 90.4% (SR2), or 81.6% (SR3) feed rations for 64 days, while larger individuals (1689 g initial mean weight) were fed with 10...
Spinal anomalies are a recognised source of downgrading in finfish aquaculture, but identifying their cause(s) is difficult and often requires extensive knowledge of the underlying pathology. Late-onset spinal curvatures (lordosis, kyphosis, scoliosis) can affect up to 40% of farmed New Zealand Chinook (king) salmon (Oncorhynchus tshawytscha) at ha...
The integrity and function of Type I collagen (Col-I), a fundamental structural molecule, is central to fish movement. Farmed Chinook salmon in New Zealand are reported to develop a late onset curvature syndrome, lordosis, kyphosis and scoliosis (LKS), associated with inflammation and fibrosis, which affects movement and product quality. To investi...
Vertebral fusions are an established economic concern in farmed Atlantic salmon, but have not been studied in detail in farmed Chinook salmon. Two radiographic studies of vertebral fusions were performed in farmed Chinook salmon. Sixteen of 1,301 (1.2%) smolt and 201 of 2,636 (7.6%) harvest fish had fusions. There were no significant differences in...
Characterising the pathology of skeletal anomalies in farmed finfish is key to elucidating the underlying causes. Spinal curvature is frequently observed in farmed New Zealand king salmon (Oncorhynchus tshawytscha), but its cause is currently unknown and knowledge about its pathology is limited. Dual-energy X-ray absorptiometry (DXA) was used to in...
Vertebral column lordosis, kyphosis and scoliosis (LKS) can result in downgrading of farmed Chinook salmon Oncorhynchus tshawytscha in New Zealand. No cause of LKS has been identified. Radiography and histology were used to quantify LKS and perivertebral fibrosis in 27 fish with LKS visible at harvest and 30 visually normal fish from 3 New Zealand...
