Here we identify a range of different potential indicators, primarily focused on shallow water (Ībstract = "Monitoring has become a critical component of managing marine environments world-wide in the face of local and global anthropogenic impacts. ![]() While many studies have reported spatial and temporal variation in sponge assemblage composition and abundance, far fewer studies have considered specific monitoring of other aspects of sponge ecology, particularly ecological processes, or physiology. ![]() Sponges are an important component of marine systems world-wide and they have received increased focus in recent years as a result of global reports of changing sponge abundance, particularly in tropical systems. However, while such measures provide important indicators of change, they are less useful when trying to identify more chronic impacts, especially for species that are long-lived. Typically the focus of most monitoring programmes has been to quantify temporal and spatial variation in the abundance of organisms, along with the diversity and composition of biological communities to assess acute and chronic impacts. ![]() Monitoring has become a critical component of managing marine environments world-wide in the face of local and global anthropogenic impacts.
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