This week on Womanity, Dr Amaleya Goneos-Malka speaks with Professor Sophie Von Der Heyden from the Department of Botany and Zoology at Stellenbosch University and the Von Der Heyden Laboratory. She is a leading marine molecular ecologist, renowned for her pioneering work in aquatic biodiversity, conservation genomics, and climate change research.
From East Berlin to the Oceans of Africa
Professor von der Heyden’s story begins far from the shores and aquatic ecosystems that would eventually define her career. Growing up in East Berlin, she credits her early fascination with nature to family influences, particularly her brother, who introduced her to exploring and observing wildlife. She reflects on the freedom she experienced as a child; freedom to explore, question, and discover, which she believes laid the foundations for her curiosity-driven approach to science.
Why Aquatic Ecosystems Matter
Professor von der Heyden explains why aquatic ecosystems continue to captivate her. Oceans, rivers, estuaries, and wetlands remain among the least understood environments on Earth, despite their immense importance to biodiversity, climate regulation, and human livelihoods.
She describes Africa as a continent rich with scientific opportunity because so much remains undiscovered. While limited funding and research capacity present challenges, they also create extraordinary opportunities for innovation and discovery. Her work is driven by a desire to contribute pieces to the larger scientific puzzle that ultimately supports better conservation, management, and restoration of vulnerable ecosystems.
Building Knowledge Through the Von der Heyden Lab
As founder and leader of the Von der Heyden Lab, Professor von der Heyden is passionate about developing the next generation of scientists. While groundbreaking discoveries are important, she emphasises that one of her most significant contributions has been building scientific capacity in Africa.
Her laboratory has helped introduce and advance molecular ecology and genomic techniques across the continent, enabling African researchers to address environmental challenges using cutting-edge scientific tools. Through mentorship, teaching, and collaboration, she seeks to create opportunities for emerging scientists while strengthening Africa’s ability to conduct world-class biodiversity research.
Climate Change Beneath the Surface
While climate change is often discussed in terms of weather events, agriculture, and rising temperatures on land, Professor von der Heyden highlights the profound effects occurring beneath the water's surface. She explains how rising ocean temperatures, ocean acidification, sea-level rise, and changing environmental conditions are affecting marine and freshwater species. Many organisms are being forced to shift their geographical ranges in search of suitable habitats, while others, particularly species restricted to estuaries or isolated ecosystems, have nowhere to go.
The conversation also explores concepts such as "coastal squeeze," where natural habitats like salt marshes and seagrass meadows become trapped between rising seas and human development. These combined pressures illustrate the complex and interconnected nature of environmental challenges.
Finding Hope Through Action
Despite the seriousness of climate change, Professor von der Heyden stresses the importance of focusing on solutions rather than despair. She encourages individuals to consider practical actions that reduce their environmental footprint, including:
Reducing unnecessary travel
Walking and using sustainable transport where possible
Supporting locally produced food (food has travel miles too)
Being conscious of consumption habits
Reducing waste and packaging
Understanding personal carbon footprints
She shares a memorable teaching exercise where students compared their carbon footprints with those of their grandparents, often discovering that previous generations lived significantly more sustainable lifestyles despite having fewer resources.
Her message is clear: meaningful change begins with informed, conscious choices
Women in Science: Progress and Remaining Challenges
Professor von der Heyden reflects positively on the growing participation of women in marine sciences and STEM fields. Over the course of her career, she has witnessed significant increases in female representation and leadership within scientific disciplines.
However, she notes that important challenges remain, particularly around retaining talented women in research careers. Balancing professional ambitions with family responsibilities, caregiving, and personal wellbeing continues to be a reality for many women.
She advocates for supportive environments, mentorship, and institutional cultures that enable women to flourish at different stages of their careers.
Preparing Young People for an Uncertain Future
The discussion also turns to education and the future of work. Professor von der Heyden argues that today's careers are far less linear than in previous generations. In a world increasingly shaped by technology and artificial intelligence, she believes the most valuable skills are:
Critical thinking
Problem-solving
Numerical literacy
Adaptability
Communication and interpersonal skills
While technical knowledge remains important, she suggests that the ability to evaluate information, think independently, and build meaningful human connections will become even more critical in the future.
Balancing Science, Family and Life
As a mother of three and a successful academic leader, Professor von der Heyden speaks candidly about the realities of balancing family life with a demanding career.
She acknowledges the guilt and uncertainty she experienced as a young researcher and parent, but emphasises that balance evolves over time rather than being perfectly achieved. One of her pieces of advice is to accept help when it is offered.
She credits much of her success and well-being to the community she has built around her; family, friends, colleagues, and mentors who have provided support throughout different stages of her life.
Her perspective challenges the notion that success is achieved alone, highlighting the importance of relationships, collaboration, and mutual support.
A Message to Women and Girls
Closing the interview, Professor von der Heyden offers heartfelt advice to women and girls pursuing their ambitions:
Be comfortable with who you are.
Trust yourself and your abilities.
Build meaningful relationships.
Accept support when it is offered.
Stay open to learning from others.
Be adaptable when circumstances change.
Work hard, but also be kind—to yourself and to others.
Her final message beautifully captures the spirit of the conversation:
"Be kind, work hard, and believe in who you are."