Induction of Metamorphosis of Larvae of the Green Sea Urchin, Strongylocentrotus droebachiensis, by Coralline Red Algae

Population Dynamics and Spatial Analysis of the Maine Green Sea Urchin (strongylocentrotus Droebachiensis) Fishery By

Fisheries research on the green sea urchin in Maine has been limited despite its importance to the state's fishing industry. The objective of this thesis was to generate critical information for the management and monitoring of the Maine green sea urchin fishery. In particular there are three main areas of interest: (1) an investigation of biological reference points; (2) spatial analysis and b...

Trans-life cycle impacts of ocean acidification on the green sea urchin Strongylocentrotus droebachiensis Doctoral thesis

Spatial and temporal variation in growth of the green sea urchin, Strongylocentrotus droebachiensis, in

The green sea urchin, Strongylocentrotus droebachiensis, is found primarily in subtidal habitats but also occurs in low intertidal pools in the Gulf of Maine. Previous studies of low intertidal populations on Swans Island, Maine, USA, found that this species is slow growing and long lived. However, these population parameter estimates may not be representative because low intertidal pools are a...

Acclimation and growth response of the green sea urchin Strongylocentrotus droebachiensis to fluctuating salinity

Sea urchins are osmoconformers and not typically found in euryhaline habitats. Yet the green sea urchin, Strongylocentrotus droebachiensis, is often found in areas periodically exposed to low salinity, e.g., near the mouths of rivers in the Gulf of Maine. These areas represent some of the most productive sea urchin fishing grounds in the northwestern Atlantic and are currently targeted for stoc...

Effects of Oscillatory Flow on Fertilization in the Green Sea Urchin Strongylocentrotus droebachiensis

Broadcast spawning invertebrates that live in shallow, high-energy coastal habitats are subjected to oscillatory water motion that creates unsteady flow fields above the surface of animals. The frequency of the oscillatory fluctuations is driven by the wave period, which will influence the stability of local flow structures and may affect fertilization processes. Using an oscillatory water tunn...