Internal hydrodynamics within the skeleton of Acropora pulchra coral
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
View abstract on PubMed
Summary
This summary is machine-generated.Coral skeletons facilitate internal flow for growth and stability. However, ocean acidification can cause skeletal dissolution, weakening coral structures.
Area Of Science
- Marine biology
- Biomineralization
- Oceanography
Background
- Marine organisms like Acropora coral build abiotic structures to support life.
- Coral skeletons possess intricate pore networks crucial for internal processes.
- Ocean acidification poses a significant threat to marine calcifying organisms.
Purpose Of The Study
- To simulate and analyze internal fluid flow within Acropora coral skeletons.
- To understand the role of skeletal structure in material transport and coral growth.
- To investigate the impact of ocean acidification on coral skeletal integrity.
Main Methods
- Numerical modeling of fluid dynamics within coral skeletons.
- Reconstruction of coral skeletal architecture using micro-computed tomography (CT) scans.
- Simulation of internal flows under varying ocean current conditions.
Main Results
- Coral skeletal pore spaces facilitate internal flow, aiding growth and stability.
- Internal flow dynamics are influenced by ambient ocean currents.
- Ocean acidification can lead to aragonite dissolution within the skeleton, compromising structural integrity.
Conclusions
- The unique skeletal structure of Acropora coral is vital for internal transport and support.
- Ocean acidification presents a critical risk, potentially weakening coral skeletons through internal dissolution.
- Further research is needed to understand coral resilience to changing ocean conditions.
Contact us if these videos are not relevant.
Contact us if these videos are not relevant.
Related Concept Videos
Concrete exposed to seawater can undergo degradation like the dissolution of ettringite and gypsum, increasing the material's porosity and decreasing its strength. In contrast, the crystallization of salts within the concrete's pores can cause expansion, particularly above the waterline where evaporation occurs. Nonetheless, this expansion only happens when seawater, enabled by the concrete's permeability, manages to infiltrate the structure.
Concrete in areas between tide marks,...
Bone remodeling is a continuous and balanced process of bone resorption by osteoclasts and bone formation by osteoblasts. In adults, it helps maintain bone mass and calcium homeostasis. While mechanical stress can stimulate turnover as part of the normal maintenance and reparative process, several hormones also regulate bone remodeling.
Hormonal Control of Bone Remodeling
Parathyroid hormone (PTH) maintains homeostatic control of blood calcium levels by regulating bone resorption. PTH is...
Bone contains a relatively small number of cells entrenched in a matrix of collagen fibers that provide an adherent surface for inorganic salt crystals. Both components of the matrix, organic and inorganic, contribute to the unusual properties of bone. Without collagen, bones would be brittle and shatter easily. Without mineral crystals, bones would flex and provide little support. This can be observed by an experiment: when the minerals of a bone are dissolved by soaking the bone in...
In analyzing a thin-walled hollow shaft subjected to torsional loading, a segment with width dx is isolated for examination. Despite its equilibrium state, this segment faces torsional shearing forces at its ends. These forces are quantitatively described by the product of the longitudinal shearing stress on the segment's minor surface and the area of this surface, leading to the concept of shear flow. This shear flow is consistent throughout the structure, indicating a uniform distribution...
When a curved plate of constant width is submerged in a liquid, the pressure acting normal to the plate varies continuously both in magnitude and direction. Calculating the magnitude and location of the resultant force at a point is often challenging for such cases. One of the methods to determine the resultant force and its location involves separately calculating the horizontal and vertical components of the resultant force. This complex calculation can be simplified by representing the...
All bones comprise an outer layer of compact bone, and an interior made up of spongy bone tissue, also called cancellous or trabecular bone. In long bones, spongy bone tissue is mainly found in the interior of the epiphyses (broad ends of the bone).
Spongy bone is more porous, and less dense compared to compact bone. It is composed of concentric lamellae that are arranged irregularly to form the trabecular network. In some bones, the spaces between trabeculae contain red marrow, where...