The many nutritional benefits reported in seaweeds have increased their demand in the western world for human consumption. In order to supply this demand, it is necessary to cultivate seaweeds both offshore and onshore. Offshore cultivation is highly vulnerable to climate variation. Cultures on land can be operated while essential variables can be controlled (nutrient supply) or partially regulated (light and temperature) providing a more uniform quality and continuous production. In this study, we present the results of pond-culture in a commercial pilot-facility on the Pacific, temperate coast of Mexico, which has been continuously running for 2½ years. Ponds of 100 m³ were seeded with 3 kg/m² of a previously selected strain of Ulva. Pulse fertilization and a full water exchange were made twice a week. Ponds were fully harvested every 3 weeks and re-seeded with the initial density. Seaweed production showed a bimodal distribution with a strong peak in spring (258–290 g m⁻² day⁻¹), a minor peak in autumn, and lower production in summer and much lower in winter (40–85 g m⁻² day⁻¹). Highest growth performance occurred when the average temperature remained between 17 and 23°C. This study provides a realistic baseline for annual seaweed production on a commercial pilot-scale aquaculture farm.

中文翻译：

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基于商业规模池塘的户外养殖海生菜（Ulva sp.）的季节性和年际生产

海藻中报告的许多营养益处增加了西方世界对人类消费的需求。为了满足这种需求，有必要在海上和陆上种植海藻。离岸种植极易受到气候变化的影响。可以在陆地上进行养殖，同时可以控制（养分供应）或部分调节（光和温度）的基本变量，从而提供更均匀的质量和连续生产。在这项研究中，我们展示了在墨西哥温带太平洋沿岸的商业试点设施中池塘养殖的结果，该设施已连续运行 2.5 年。在 100 m ^{3 的}池塘中播种 3 kg/m ²的先前选择的石莼菌株. 每周进行两次脉冲施肥和完全换水。每 3 周完全收获池塘并以初始密度重新播种。海藻产量呈双峰分布，春季高峰（258-290 g m ^-2  day ^-1），秋季小高峰，夏季产量较低，冬季产量低得多（40-85 g m ^-2  day ^-1）。当平均温度保持在 17 至 23°C 之间时，生长性能最高。这项研究为商业中试规模水产养殖场的年度海藻产量提供了现实的基线。