Sea urchin gonad enhancement entails collecting adults with low gonad yields from the wild, placing them in land‐based or sea‐based captivity, and feeding them a prepared or natural diet to produce high quality/quantity gonads for marketing. Collection and transportation to the culture facility can be stressful to the urchins and cause subsequent mortalities and suboptimal gonad yield/quality. Minimizing this handling stress is critical to ensuring maximum survivorship and optimal gonad enhancement, yet very little research has examined this, with no information being available for the red sea urchin Mesocentrotus franciscanus. The present study examined survivorship, gonad yield, and gonad quality of red sea urchins 2 weeks after exposure to three 2‐h transport methods: (1) milk crates placed in two plastic fish totes filled with ambient seawater (“wet crate”), (2) sealed Styrofoam boxes filled with ambient seawater (“wet box”), and (3) sealed Styrofoam boxes without seawater, but with wet burlap placed on top of the urchins (“dry box”). While no gonadal parameters significantly differed between transportation methods, the percentage of survivorship for both the wet boxes and wet crates was 100%, while that for the dry boxes was 58.3% after 2 weeks, indicating that wet transport should be preferred over dry transport for red sea urchins.

中文翻译：

---

转运方式对红海胆中观腹轮虫随后存活和性腺产量/品质的影响

增强海胆性腺需要从野外收集性腺产量低的成年个体，将其置于陆基或海基人工饲养下，并喂养他们准备好的或天然的饮食以生产高质量/定量的性腺，以供销售。收集和运输到养殖设施可能会对海胆造成压力，并导致随后的死亡和性腺产量/质量欠佳。最小化这种处理压力对于确保最大程度的生存和最佳性腺增强至关重要，但是很少有研究对此进行检查，没有关于红海胆Mesocentrotus franciscanus的信息。。本研究调查了暴露于三种2小时运输方法后2周的红海胆的存活率，性腺产量和性腺质量：（1）将牛奶箱放在两个装有环境海水的塑料鱼箱中（“湿箱”）， （2）装满环境海水的密封聚苯乙烯泡沫塑料箱（“湿箱”），以及（3）密封无海水的聚苯乙烯泡沫塑料箱，但将湿麻布放在海胆顶部（“干箱”）。尽管运输方法之间的性腺参数没有显着差异，但湿箱和湿箱的存活率均为100％，而干箱的存活率则为2周后的58.3％，这表明湿运输比干运输更适合红海胆。