Sökning: "Sea Urchins"
Hittade 5 avhandlingar innehållade orden Sea Urchins.
1. Anthropogenic Disturbances and Shifts in Tropical Seagrass Ecosystems
Sammanfattning : Seagrasses constitute the basis for diverse and productive ecosystems worldwide. In East Africa, they provide important ecosystem services (e.g. fisheries) but are potentially threatened by increasing resource use and lack of enforced management regulations. LÄS MER
2. Macroalgal community dynamics on coral reefs : Implications for management
Sammanfattning : Although rather inconspicuous on healthy coral reefs, macroalgae form the basis of coral food webs. Today, macroalgae are generally increasing and many reefs undergo transitions from coral to macroalgal dominance resulting from e.g. enhanced nutrient loading or increased fishing. LÄS MER
3. The role of the jelly coat and the block to polyspermy in the fertilazation os sea urchins
Sammanfattning : .... LÄS MER
4. Improving and inhibiting agents acting on the gametes and on their interaction at fertilization in sea urchins
Sammanfattning : .... LÄS MER
5. Exploring the resilience in coral reefs
Sammanfattning : Considering the unprecedented global decline of coral reefs concerns about their future existence are well-justified. Safeguarding ecological resilience (i.e. the capacity of ecosystems to absorb disturbance without changing their identity) has become a prime goal for management in order to combat further degradation of coral reefs. LÄS MER