An important pathogen of concern for Pacific oyster growers in the USA is ostreid herpesvirus 1 (OsHV-1). Currently, oyster stocks exist that are tolerant to OsHV-1; however, it is uncertain if a trade-off exists between their tolerance to OsHV-1 and their growth in different environments. To investigate any potential trade-offs, Pacific oyster families with varying levels of OsHV-1 tolerance were grown in a bay where OsHV-1 is endemic (Tomales Bay, CA) and in a bay where OsHV-1 is absent (Willapa Bay, WA). In Tomales Bay, we found that oysters from OsHV-1 tolerant families grew faster than oysters from OsHV-1 susceptible families, while in Willapa Bay, no statistically significant difference in growth was found between oyster families with different levels of OsHV-1 tolerance observed in Tomales Bay. These findings indicate that Pacific oysters bred to be tolerant to OsHV-1 would not be expected to have a longer time-to-market regardless of the presence of OsHV-1 in the growing environment.

中文翻译：

---

美国西海岸养殖的太平洋牡蛎 (Crassostrea gigas) 的生长和 OsHV-1 耐受性之间没有权衡

美国太平洋牡蛎养殖者关注的一种重要病原体是鸵鸟疱疹病毒 1 (OsHV-1)。目前，存在对 OsHV-1 具有耐受性的牡蛎种群；然而，尚不确定它们对 OsHV-1 的耐受性与其在不同环境中的生长之间是否存在权衡。为了研究任何潜在的权衡，在 OsHV-1 流行的海湾（加利福尼亚州托马莱斯湾）和不存在 OsHV-1 的海湾（威拉帕湾，西澳）。在Tomales Bay，我们发现来自OsHV-1耐受家族的牡蛎比来自OsHV-1易感家族的牡蛎生长得更快，而在Willapa Bay，观察到不同OsHV-1耐受水平的牡蛎家族之间的生长没有发现统计学上的显着差异。在托马莱斯湾。这些发现表明，无论生长环境中是否存在 OsHV-1，培育耐受 OsHV-1 的太平洋牡蛎预计不会有更长的上市时间。