Different panning, some effect more or less pronounced, more ambience, etc. I think of it as the difference that sometimes we note comparing mono and stereo versions. I found this intriguing, but I guess that some changes could have been made in the vinyl cutting stage.Ģ. The 50th anniversary box set has less pronounced high frequencies but more pronounced bass. I compared the album edition from the "Ten Year War" which is supposed to have the same mastering. Biological restoration may also include integrating fish, giant clam, or other nurseries and aggregation devices to restore reef balance and return vital symbiosis necessary for reef health.Click to expand.In my opinion, yes, it is worth it. Following these types of mass mortality events, small coral colonies can be used to ‘seed’ the reef that will eventually grow large enough to become sexually reproductive and return the balance on the reef. This is most generally required in areas which have been impacted by bleaching, disease, predation ( COTs and Drupella snails), algae overgrowth, sedimentation, etc. The general goal of biological restoration is to regrow corals in areas where populations have been diminished or lost. This is generally achieved through methods such as collecting and rehabilitating naturally broken coral fragments, propagating coral colonies, culturing coral larvae, or transplanting living coral colonies. In areas that are recruitment limited or greatly marginalized, artificial structures will need to be ‘seeded’ with coral transplants to facilitate and speed development.īiological restoration usually involves increasing the amount of living corals on the reef in areas were structure is already available. By adding artificial structures in these areas where the physical and biological conditions for coral growth are still good, and the natural levels of coral recruitment are high, the reef can quickly and effectively be restored. Giant clams, rock oysters, coralline algae, and even marine debris can sometimes assist in this process. Larvae from the Porites genus seem to be particularly successful in recruiting to marginalized areas, as they tend to be more resilient towards physical abuse by wave action. Other corals can then settle on the large, and relatively stable, dead skeletons successfully. Eventually these fungidae corals grow large, and die. Natural means by which reef structure could return in areas with physical reef damage includes the settlement and long-term growth of corals from the Fungidae family which are better adapted to survive without being attached to the substrate.
If a coral has been secured in an area where the physical conditions are conducive for that coral colony’s growth, then it will thrive as long as it is secure in place. Corals can be secured to a solid structure using a wide variety of straps, glues, wedges and other techniques. Today, we use stronger and more long-lasting materials than Darwin’s bamboo poles to secure the corals onto (concrete, steel, ceramics, limestone, etc.), or simply replant them securely to natural reef areas. For some corals, such as branching or bushy colonies, asexual reproduction through budding or breakage is a major mechanisms in which they spread out, and is referred to as propagation.
This can be done due to the fact that corals reproduce primarily through asexual means, and any individual polyp in the colony has the potential to create a new colony in the right conditions.
In the time since Darwin, techniques for coral restoration have advanced, but the basic principle is still the same secure broken corals so they will survive.