 For many, the oceans are both a source of nourishment and a waste disposal site.  But they can also be a source of important new medicines.  Unfortunately, our desire to fill our stomachs with the ocean's bounty or empty our trash is also threatening its possibilities as a new-found pharmacy.
For many, the oceans are both a source of nourishment and a waste disposal site.  But they can also be a source of important new medicines.  Unfortunately, our desire to fill our stomachs with the ocean's bounty or empty our trash is also threatening its possibilities as a new-found pharmacy.
In June, I wrote about the ocean's medicinal potential and Jonathan Booth, writing for PolicyMic.com, has written an excellent piece on the deep ocean as a source of new medicines.  Rather than paraphrase, here is his piece in its entirety:
Oceanic Discoveries With Medicinal Powers
When we think of obtaining medicines from natural sources, we usually  conjure up scenes of trekking through vast swathes of dense tropical  forest in search of rare ferns, vines, palms, and other plant life.  However, there is now a growing interest in the lesser known organisms  that inhabit the oceanic abyss and the medicinal and genetic properties  they may contain. An organisation that has taken significant steps to  examine deep sea animals is CIOERT,  which recently conducted deep sea expeditions in search of  invertebrates to help alleviate an array of ailments, including cancer.  Likewise, researchers in Australia have discovered derivatives from some  sea cucumber species that can work as an anti-inflammatory, and some coral compounds  may be used to help with bone grafting or the treatment of tumours.  Accordingly, swift actions need to be taken to fund and promote the  exploration, research, and protection of the oceans – some of the least  explored habitats, which often escape environmental and ecological  policy.
 Over three-quarters of our planet is submerged under seawater, and  with the Pacific Ocean’s deepest point extending over 10,000 metres  below sea level, the oceans form undoubtedly the largest habitable and  least explored environment on earth. Yet, unlike terrestrial regions,  the absence of breathable oxygen, diminishing light levels, and  immensely pressurised depths make the seas an almost inaccessible domain  for humans. Due to these conditions, marine systems also function  differently to land-based habitats. The land relies on plants to capture  the sun’s light and combine it with water and CO2 to synthesise sugars;  this provides the crux of all land food-webs. In the sunlit upper  layers of the sea, conversely, green plants are substituted for  single-celled phytoplankton, and terrestrial insects and herbivorous  mammals are replaced with zooplankton (a drifting soup of eggs, sperm,  and microscopic animals). 
 The deep ocean is devoid of light so no plants can live in this  region; instead, abyssal organisms have to rely on organic detritus that  drifts from above, or mineral-laden volcanic plumes that belch from the  inner earth. In this unfamiliar realm, it is not surprising that marine  scientists are making seemingly countless discoveries about new animals  and even new ecosystems.
 The sea floor is dominated by the weird and wonderful world of  invertebrates. From the colorful architectures of sponges and corals, to  mechanical crustaceans and a bewildering array of worms, starfish, sea  cucumbers, and sea squirts it is difficult not to be amazed by some of  these curious creatures. However, such life forms are not only visually  stimulating: In the eyes of the medical profession, their physiologies  can be lifesaving too, which reiterates the need to research and  preserve oceanic organisms and their environments.
 An animal that has been a favorite lab companion for many pharmaceutical industries is the horseshoe crab.  With a large, flattened, dome-shaped carapace that masks almost all  signs of the segmented limbs that emerge from beneath, and a long,  tail-spike that juts out from the rear, this animal almost defies  belief. Yet apart from its science fiction-like form, these  extraordinary creatures have also caught the attention of the medical profession,  who have been collecting specimens over the past few decades to assist  scientists with medical trials. This is due to the presence of  copper-based haemocyanin in the animal’s blue blood (unlike the  red-pigmented ferrous haemoglobin found in mammals); this blood contains  amebocytes – white-blood cell substitutes – that can help identify the  presence of bacteria in medicinal solutions. Marine discoveries like  these have helped to further medical progression, which in the case of  the horseshoe crab includes the development of wound dressings, optical  research, and the guarantee that all your injections are free from  bacterial contaminants.
  Recent discoveries  concerning the physiological and genetic characteristics of this cast  of organisms are advancing the understanding of medicine, which could be  significant for society. In order to further this knowledge, we need to  expand deep sea exploration projects and associated research. Since the  1970s, submersibles have discovered not only new fauna, but also entire  ecosystems that function without any source of sunlight. However, there  is also a need to conserve and protect the oceans. Currently, national  marine parks and marine protected areas help to conserve certain coastal  regions, such as coral reefs; yet the open oceans and abyss have been  largely neglected. Pollution, oceanic waste-sites, overfishing, and  other marine exploitations have had adverse repercussions on our marine  systems; such impacts could be furthered by the escalating threats of  projected anthropogenic climate changes. It is apparent, therefore, that  appropriate measures need to be taken to not only research the deep and  its inhabitants, but also to conserve it. Otherwise, we may be  destroying a ready stocked medicine chest that has yet to be delved into  – and a beautifully adorned one at that.
Recent discoveries  concerning the physiological and genetic characteristics of this cast  of organisms are advancing the understanding of medicine, which could be  significant for society. In order to further this knowledge, we need to  expand deep sea exploration projects and associated research. Since the  1970s, submersibles have discovered not only new fauna, but also entire  ecosystems that function without any source of sunlight. However, there  is also a need to conserve and protect the oceans. Currently, national  marine parks and marine protected areas help to conserve certain coastal  regions, such as coral reefs; yet the open oceans and abyss have been  largely neglected. Pollution, oceanic waste-sites, overfishing, and  other marine exploitations have had adverse repercussions on our marine  systems; such impacts could be furthered by the escalating threats of  projected anthropogenic climate changes. It is apparent, therefore, that  appropriate measures need to be taken to not only research the deep and  its inhabitants, but also to conserve it. Otherwise, we may be  destroying a ready stocked medicine chest that has yet to be delved into  – and a beautifully adorned one at that.
Read more at PolicyMic.com.