Área de Ecología, Facultad de Ciencias, Universidad de Extremadura, Badajoz, Spain.
Laboratorio Biología Marina, Seville Aquarium R + D + I Biological Research Area, Department of Zoology, Faculty of Biology, University of Sevilla, Sevilla, Spain / Marine Biology Station of the Strait, Ceuta, Spain.
PLoS One. 2024 Oct 23;19(10):e0311483. doi: 10.1371/journal.pone.0311483. eCollection 2024.
In recent decades, the invasive seaweed Rugulopteryx okamurae has had a huge environmental impact on marine biodiversity, fisheries, GHG emissions and public health along much of the Iberian Peninsula and islands coastline. Due to the enormous amount of algae biomass that is expelled to the beaches where it slowly rots, some circular economy business initiatives, such as composting, are emerging. In the present study, we compared the quality of compost obtained from earthworms (Dendrobaena veneta), cockroaches (Eublaberus sp.), mealworms (Tenebrio molitor) and black soldier fly larvae (Hermetia illucens). Batches fed with 100% organic kitchen waste (control group) were compared with batches fed with 50% algae and 50% kitchen waste (treatment group). Our results show that the most sensitive species (D. veneta and T. molitor) to R. okamurae toxins compost adequately. The C/N ratio, electrical conductivity (EC), pH, total organic matter (TOM), C, K, K2O, Mg, MgO, N, P, P2O5, B, Cu, Ni and Zn of the compost obtained were determined. A high quality compost was obtained in which only the EC values are slightly elevated. Particularly good was the compost obtained with H. illucens and Eublaberus sp. This quality is in agreement with previous research on the mass balance of composting. Therefore, both species offer, in the field of circular economy, encouraging prospects for the development of composting enterprises.
近几十年来，入侵性海藻冈村 Rugulopteryx okamurae 对伊比利亚半岛和岛屿海岸线的海洋生物多样性、渔业、温室气体排放和公共卫生造成了巨大的环境影响。由于大量藻类生物量被排放到海滩上，这些藻类在那里慢慢腐烂，因此一些循环经济业务举措，如堆肥，正在出现。在本研究中，我们比较了从蚯蚓（Dendrobaena veneta）、蟑螂（Eublaberus sp.）、黄粉虫（Tenebrio molitor）和黑水虻幼虫（Hermetia illucens）获得的堆肥的质量。用 100%有机厨房垃圾（对照组）喂养的批次与用 50%藻类和 50%厨房垃圾（处理组）喂养的批次进行了比较。我们的结果表明，对 R. okamurae 毒素最敏感的物种（D. veneta 和 T. molitor）能够充分堆肥。测定了堆肥中 C/N 比、电导率（EC）、pH 值、总有机物质（TOM）、C、K、K2O、Mg、MgO、N、P、P2O5、B、Cu、Ni 和 Zn 的含量。获得了高质量的堆肥，其中只有 EC 值略有升高。H. illucens 和 Eublaberus sp. 获得的堆肥尤其好。这一质量与之前关于堆肥质量平衡的研究结果一致。因此，这两个物种在循环经济领域为堆肥企业的发展提供了令人鼓舞的前景。
