Our People

Mainstream’s people are selected to work with us not only for the right skills.  More importantly, we want people with a passion for aquaculture, the capacity to evolve and the drive to deliver outcomes as we continue to face new and exciting challenges.
Throughout your career with Mainstream, we will encourage and empower you to take an active role in managing your development.  Together, we believe we can enjoy professional and personal success and make a positive contribution to our community.

If you are interested in a career with Mainstream, please email your resume to enquiries@mainaqua.com.au

Board and Senior Management

Michael Harrison B.Bus (Acc), CFP, Dip FP
Michael has over 25 years experience in the financial services industry. His career began with an opportunity to build a financial planning business, which became one of Australia’s leading independently owned advice businesses. In 2008, he successfully navigated this business through a 14 way merger creating Shadforth Financial Group, now part of one of Australia’s largest listed financial services businesses, IOOF. In 2012, Michael co-founded Peloton Partners, a business that uses his practical experience to advise other businesses on growth strategies. Michael has been a director of Mainstream Aquaculture since 2001 and Chairman since 2012.

Boris Musa B.Com (Acc & Fin-DS), MAppFin (CF & IM), Dip NR, MAICD
Managing Director & Chief Executive Officer

As the MD & CEO of Mainstream Aquaculture Group (Mainstream), Boris is responsible for strategic management of a large scale vertically integrated producer and supplier of Barramundi. Mainstream is one of the largest suppliers of Barramundi table fish products in Australia and is the global market leader in the provision of juvenile fish (seed stock) to the Barramundi aquaculture industry, exporting to 24 countries across five continents. Mainstream operates a multi-site business which includes the world’s largest aquaculture production facility of its type in Melbourne, Australia, and two pond farming operations in far north Queensland, along with the world’s largest Barramundi hatchery. Boris has been Managing Director since 2012 and under his stewardship company value, revenue and profitability have all increased exponentially with Mainstream recognised by Business Review Weekly as one of Australia’s 100 fastest growing companies across successive years.

Boris’ background is in financial services. He commenced his career in funds management business, Boutique Development & Marketing Direct and more recently, Boris spent five years at Macquarie Group, the last two as a Director of Macquarie Global Investments. He performed multiple roles across agricultural asset management, private equity, investment banking and traditional funds management, with his final position Global Head of Sales for Macquarie’s Alternative Investments division. During his tenure, he was appointed to the Macquarie Global Investments leadership team and held a position on Macquarie’s Global Deal Assessment Committee.

Boris is a member of the Juvenile Diabetes Research Foundation Finance and Audit Committee and has previously chaired this Committee, along with the State Committee. He is also a member of the Australian Institute of Company Directors and is a Director of the Wyndham City Refuse Disposal Facility. He holds a Bachelor of Commerce from Deakin University and is a Deans Scholar in Finance (top 1% of graduates). He also holds a Diploma in Natural Resource Management and a Masters of Applied Finance with majors in Corporate Finance and Investment Management.

Professor Rocky de Nys PhD, GDip Mgt (TechMgt), MRACI, C.Chem
Non-Executive Director

Rocky is a Professor at James Cook University, one of Australia’s leading aquaculture education centres. He runs an extensive research program in aquaculture and aquatic science. His research focus is on the industrial production of algae for bio-fuels and bio-products. Rocky is actively involved in Mainstream’s program of commercially focused research and development. He has extensive experience in aquaculture research and commercial fish farming and has formed many valuable industry alliances. Rocky has been a director of Mainstream Aquaculture since 2001.

Peter Wilson B.Ec, Dip Chem
Non-Executive Director

Peter is a former Managing Director and Chief Executive Officer of Spotless Group Limited, a large services company with turnover of in excess of $A3 billion. He has had extensive Australian and International experience in all aspects of management of industrial based businesses. Peter is now the principal of PAGA Consulting and an advisor to numerous private companies. PAGA Consulting, in addition to a broad range of business consulting and support activities, has specialised in the development of markets for products and services. The focus being on technologically advanced solutions at the leading edge of environmental impact. Peter also demonstrates a tenure of over 20 years as a Director and Vice-Chairman of the Juvenile Diabetes Research Foundation and is a presiding member of the foundations Finance & Audit Committee. Peter has been a director of Mainstream Aquaculture since 2012.


Anthony Podesta B Ed (Bus), MTMA, FTIA, MAICD
Non-Executive Director

Anthony founded ASX listed company McMillian Shakespeare in 1988. Having commercialised the novated lease concept for employees to salary package a motor vehicle, Anthony was instrumental in the development of the outsourced salary packaging administration in Australia. Anthony was named the 2012 Ernst & Young Australian Entrepreneur of the year. Anthony is a fellow of the Taxation Institute of Australia and a member of the Australian Institute of Company Directors. During Anthony’s time at McMillan Shakespeare (up until February 2014) the company grew from Anthony, as the sole employee, to an ASX 200 listed company with a market capitalisation of in excess of $1bn. Anthony has been a director of Mainstream Aquaculture since 2015.


Campbell Andrews B.Com, B.A, MBA
Non-Executive Director

Campbell is an Investment Manager at Baron Corporation, a private family investment company. Campbell has responsibility for originating and evaluating new investments, and assisting with the management of the existing investment portfolio. Prior to joining Baron Corporation in March 2015, Campbell spent nine years as a Director at KPMG Corporate Finance providing advice on mergers and acquisitions, capital raising and corporate strategy. Prior to working at KPMG Corporate Finance, Campbell spent four years with the commercial lending division of Macquarie Bank with a focus on originating, analysing and managing both cash flow and secured loans. Campbell is currently a member of the executive committee of David Golf & Engineering, Australia’s largest distributor of golf course hardware. Campbell has a B.Com and B.A. From Melbourne University and an MBA (Deans List) from Melbourne Business School. Campbell has been a director of Mainstream Aquaculture since 2015.

Mark Kirkby

Mark Kirkby CA, B.Acc
Non-Executive Director

Mark is a Chartered Accountant and currently works for PGA Management, a private family investment company, as its Commercial Director. In this role, Mark manages PGA’s corporate office, its share portfolio and provides support as an independent director to the group’s various operating businesses. Mark is also a member of PGA’s Investment, Property and Commerce Committees. Prior to joining PGA, Mark has held various senior financial executive roles in a variety of industry sectors in both listed and unlisted companies. Mark has been a director of Mainstream Aquaculture since 2015.


Paul McCluskey CA, B Bus, Grad Dip Bus Admin, Grad Dip App Fin
Non-Executive Director

Paul is a Chartered Accountant with over 25 years’ experience as a business advisor and also as CFO and Company Secretary of ASX listed company, McMillan Shakespeare. Paul is currently CEO of eCapital Australia, which provides support and invests in businesses at various stages of their life cycle. Paul’s chartered accounting experience included holding the position of Partner in a leading accounting firm where he provided advice on mergers and acquisitions, taking companies to IPO, company secretarial services, statutory reporting, corporate governance practices, taxation planning and strategic planning. During Paul’s time at McMillan Shakespeare Limited the company grew from a market capitalisation of less than $50m to over $1bn. Paul has been a director of Mainstream Aquaculture since 2015.

Dr Paul Harrison PhD, BSc (Hons.)
Head of Technical Innovation                                                                                                                                                                                                                                                                                                                                                                    Paul co-founded Mainstream Aquaculture in 2001 with a vision to create an environmentally sustainable “business for the future” based on best practice aquaculture technology. Paul has worked in Australia and abroad, he holds a PhD in aquatic biology and is uniquely qualified with a strong track record in fish production across multiple species, fish hatchery operations, and research and development both in aquaculture and more broadly in marine biology. Paul has designed and commissioned numerous recirculating aquaculture systems, has an excellent understanding of the biological requirements for aquaculture, and a demonstrated capacity to merge these skills into successful commercial ventures.

Matthew Mangan
Head of Plant Operations

Matthew co-founded Mainstream Aquaculture in 2001 and has consistently delivered Mainstream’s premium product to the marketplace. Matt excels at customer relations and credits his demonstrated success to a passion for Mainstream’s product and the environmentally responsible methods used to produce the fish. Matt has been integrally involved in Mainstream’s operations having project managed the construction and commissioning of Mainstream’s current plants. He now oversees quality control at all levels of the production process and provides customers the highest quality, fully traceable product.

Daniel Mohring BAppSc (Aqua)
Production Manager – Grow-out

Dan joined Mainstream in 2008 as a production technician. Dan has experience in the biological and physiological requirements for successful aquaculture and in the bulk handling technologies developed by Mainstream for the efficient and humane movements of live fish. He combines an exceptionally high personal work ethic with technical, people and time management skills. He was promoted to production manager of the grow-out component of the production cycle in 2010.