That could be a boon for already over-stressed oceans. But the worldwide explosion of aquaculture since 1970 has left its own trail of environmental destruction, from toxic concentrations of waste, to outbreaks of disease, to the continued over-harvesting of smaller ocean fish for feeding their penned brethren.
A wave of aquaculture startups are trying to tackle those challenges with better technology and management. Aquaponic, or closed-loop, systems use fish waste to fertilize vegetables. Alternative sources of proteins, from insects to microbes, can substitute for fish meal. Farms are beginning to grow fish safely with fewer chemicals and antibiotics.
Aqua-Spark, a new fund launching this week, is likewise taking a different approach to financing such aquaculture ventures. Typical venture funds aim to return capital to partners within seven to 10 years, via acquisitions, public offerings or follow-on financing of their portfolio companies. Aqua-Spark will be an evergreen, or open, fund that intends to stay involved with companies for the long term. Valuations will be determined every six months, letting new investors get in and old ones recoup their capital, after an initial lock-up period. Aqua-Spark expects to pay dividends after an initial investment period of five to seven years.