Transennella spp., indicating that ecological and taphonomic attributes varied notably within and across estuaries. Relative abundance, body size, and taphonomic attributes of Transennella spp. did not correlate significantly with focused productivity proxies or predation. However, drilling frequency had a strong positive correlation with productivity proxies (total dissolved phosphorus and chlorophyll-a) suggesting that predator-prey interactions co-varied tightly with local primary productivity. The uncovered spatial gradient in predation archived by drilling frequencies in mollusk accumulations implies a long-term stability in spatial structuring of ecological interactions. The congruence between the long-term record of predation and the current productivity gradient suggests that long-term spatial dynamics in predator-prey interactions may be hydrologically controlled. This study demonstrates that geohistorical approaches can document long-term relationships between environmental gradients and ecological processes.

Seagrasses are a vital and widespread but often overlooked coastal marine habitat. This volume provides a global survey of their distribution and conservation status.

Seagrasses are becoming widely used as in situ indicators of the relative health and condition of subtropical and tropical estuarine ecosystems. To permit meaningful management of our estuaries, there is clearly a need to develop and refine ways of effectively monitoring and assessing seagrasses. Seagrasses: Monitoring, Ecology, Physiology, and