van Oort P A J, Rukminasari N, Latama G, Verhagen A, van der Werf A K
Wageningen Plant Research, Wageningen, The Netherlands.
Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Indonesia.
J Appl Phycol. 2022;34(5):2627-2644. doi: 10.1007/s10811-022-02799-8. Epub 2022 Aug 19.
The Bio Economic Seaweed Model (BESeM) is a model designed for modelling tropical seaweed cultivation. BESeM can simulate the common tropical seaweed cultivation system with multiple harvests per year, clonal reproduction and labour intensive harvesting and replanting activities. Biomass growth is modelled as a sigmoid, with growth being initially exponentially and eventually flattening off towards a maximum weight per plant or per square meter ( ). To estimate the latter, longer duration experiments than normal are needed - in the order of 100 days rather than 45 days. Drying (on platforms on the beach) is simulated as well as increase in harvested chemical concentration over time since planting, for harvested chemicals such as agar extracted from or carrageenan extracted from or . BESeM has a limited number of parameters which makes it easily amenable to new sites and species. An experiment is presented for a site in Indonesia in which was monitored for 120 days in 6 nearby sites and from which BESeM model parameters were estimated. A simulation example is presented which illustrates how BESeM can be used to find the optimum combination of replanting weight and harvest cycle length (in days) for maximising gross and net farm income.
The online version contains supplementary material available at 10.1007/s10811-022-02799-8.
生物经济海藻模型（BESeM）是一个用于模拟热带海藻养殖的模型。BESeM可以模拟常见的热带海藻养殖系统，该系统每年多次收获、进行克隆繁殖以及有劳动密集型的收获和重新种植活动。生物量增长被建模为一个S形曲线，最初呈指数增长，最终趋于平稳，达到每株植物或每平方米的最大重量（ ）。为了估计后者，需要比正常情况更长时间的实验——大约100天而不是45天。还模拟了干燥过程（在海滩上的平台上）以及自种植以来收获的化学物质浓度随时间的增加，这些收获的化学物质如从 中提取的琼脂或从 中提取的卡拉胶等。BESeM的参数数量有限，这使得它很容易适用于新的地点和物种。给出了一个在印度尼西亚某地点的实验，在附近6个地点对 进行了120天的监测，并据此估计了BESeM模型参数。给出了一个模拟示例，说明了如何使用BESeM来找到重新种植重量和收获周期长度（以天为单位）的最佳组合，以实现农场总收入和净收入的最大化。
在线版本包含可在10.1007/s10811-022-02799-8获取的补充材料。
