Two key intertidal species (Austrovenus stutchburyi and Macomona liliana) from Wairoa River estuary, Auckland, New Zealand

Intensifying land use and accelerated erosion has resulted in increased delivery and deposition of fine terrestrially derived sediment to coastal ecosystems, increasing sediment mud content in estuarine ecosystems. This change in the sedimentary environment is known to have negative consequences for ecosystem functioning. Yet indirect and cyclical relationships between species and the environment are rarely investigated, despite being crucial for understanding ecosystem resilience. We investigate changes in intra- and inter-specific interactions between two key intertidal species (Austrovenus stutchburyi and Macomona liliana) with different but overlapping environmental preferences.
This dataset contains the results of a survey for Austrovenus stutchburyi and Macomona liliana at the Wairoa River estuary, Auckland, undertaken in November 2018. Results include species abundance for juveniles and adults, as well as sediment data (shell, mud, organic matter content) and microphytobenthic biomass at each core site.

土地利用强度增加与侵蚀加速导致陆源细颗粒沉积物向海岸生态系统的输送和沉积量上升，进而提高了河口生态系统沉积物的泥含量。沉积环境的这一变化已知会对生态系统功能产生负面影响。然而，尽管物种与环境之间的间接循环关系对理解生态系统恢复力至关重要，此类关系却鲜少得到研究。本研究探讨了两种关键潮间带物种（Austrovenus stutchburyi 和 Macomona liliana）之间的种内与种间相互作用变化，二者具有不同但重叠的环境偏好。
本数据集包含2018年11月在奥克兰怀罗阿河河口针对Austrovenus stutchburyi 和 Macomona liliana开展调查的结果，涵盖幼体与成体的物种丰度，以及各岩心采样点的沉积物数据（贝壳、泥、有机质含量）和微型底栖藻类生物量。