Conditions for staggering and delaying outplantings of the kelps Saccharina latissima and Alaria marginata for mariculture

We describe a method for production of kelp using meiospore seeding creating flexibility extended storage time prior to outplanting. One bottleneck expansion the farming industry is lack in timing seeded twine production, which dependent on fertility wild sporophytes. tested methods slow gametophyte growth and reproduction early life stages by manipulating temperature Saccharina latissima. Reducing from 12°C 4°C reduced size, sporophyte egg subsequently was best candidate condition experiments twine. Next, we examined how Alaria marginata S. latissima at under differing nutrient concentrations affected viability sporelings after being moved into optimal conditions. Seeded with no alteration culturing media showed negative effects density length both species. This storage, “cold banking,” allowed least an additional 36 days compared standard methods, total 56 spent hatchery providing opportunity outplanting staggering enhance aquaculture efficiency.