Oróstica Mauricio H, Wyness Adam J, Monsinjon Jonathan R, Nicastro Katy R, Zardi Gerardo I, Barker Cassandra, McQuaid Christopher D
Department of Zoology and Entomology, Rhodes University, Grahamstown, 6140 South Africa.
Departamento de Ciencias, Facultad de Artes Liberales, Universidad Adolfo Ibañéz, 2562340 Viña del Mar, Chile.
Hydrobiologia. 2022;849(19):4341-4356. doi: 10.1007/s10750-022-04994-7. Epub 2022 Sep 1.
Recruitment of mussels is a complex process with the successful arrival of individuals hinging on the availability of suitable habitats. We examined the effects of adult mussels as settlement habitat and the degree to which the suitability of habitat they offer is species-specific by comparing the recruitment success of intertidal mussels. We hypothesised that mussel recruitment and early growth are dictated by the quality of habitat offered by conspecifics adults. We used a unique experimental arena on the south coast of South Africa, where and two lineages of co-exist. Treatments were based on the translocation of individuals of , western- and eastern lineage of . to a single site, where artificial beds were created and sampled monthly over one year. Recruit's number, their sizes and growth were greater within beds of the western lineage of than eastern lineage or beds. The results clearly demonstrate that the quality of settlement habitat offered by adult beds differs among adult lineages/species and affects rates of settlement and the early growth of recruits. This effect extends to the intraspecific level; we found greater differences in density and growth of recruits between lineages of than between either lineage and .
The online version contains supplementary material available at 10.1007/s10750-022-04994-7.
贻贝的补充是一个复杂的过程，个体的成功补充取决于合适栖息地的可用性。我们通过比较潮间带贻贝的补充成功率，研究了成年贻贝作为附着栖息地的影响以及它们所提供栖息地的适宜性在多大程度上具有物种特异性。我们假设贻贝的补充和早期生长取决于同种成年个体提供的栖息地质量。我们在南非南海岸使用了一个独特的实验场地，在那里两种谱系的贻贝共存。处理方法是将西部谱系和东部谱系的贻贝个体转移到一个单一地点，在那里创建人工床，并在一年时间里每月进行采样。在西部谱系贻贝的床中，补充个体的数量、大小和生长情况比东部谱系或普通贻贝的床更好。结果清楚地表明，成年贻贝床提供的附着栖息地质量在成年谱系/物种之间存在差异，并影响补充率和补充个体的早期生长。这种影响延伸到种内水平；我们发现贻贝谱系之间补充个体的密度和生长差异比任一谱系与普通贻贝之间的差异更大。
在线版本包含可在10.1007/s10750-022-04994-7获取的补充材料。
