Ocean Biogeographic Information System. MarBOL:: Marine Barcode of Life Initiative. CReefs- Census of Coral Reef Ecosystems. Home, Arctic Ocean biodiversity. Hydrothermal Vents : Vent Basics. Hydrothermal Vents Photos courtesy of: W. Lange (WHOI), R. Lutz (Rutgers U.), T. Shank and D. Fornari (WHOI), Woods Hole Oceanographic Institution National Deep Submergence Facility, and National Science Foundation.
In 1979, scientists in Alvin dove to the Mid-Ocean Ridge in the eastern Pacific. Explore vent basics, vents around the world, vent chemistry, boiling points, videos, and test what you've learned with a quiz! In 1977, scientists made a stunning discovery on the bottom of the Pacific Ocean that forever changed our understanding of planet Earth and life on it. Dive into hydrothermal vents and explore their unique geology, chemistry and biology. Life in Extreme Environments.
Studies of artificial sea ice provide considerable insight into the 3-D arrangement of pores in sea ice and furthermore allow us to scrutinize the pore/ice-matrix morphologies that are associated with the segregation of pore space into isolated pockets. More important, warming of samples from in-situ temperatures to higher values allows an assessment of the increase in pore size and shape without interfering with the sample.
Image analysis of these data sets indicates that pores typically increase in vertical elongation rather than horizontal cross-section upon warming and that they furthermore link up into connected, larger pores associated with a decrease in pore number. This finding is consistent with the notions discussed above. However, the issue of scale plays an important role here, since MRI in this case provides a resolution of at best around 60 to 100 µm. Collapsed_tree_cropped. Phylogenetic_Tree_of_Life. Micro*scope - version 6.0 - March, 2006. July 2007: Micro*scope affiliates with the Encyclopedia of Life . Cameos: 4 sets of images for screen savers available. (1) various microbes from the Microbial Life digital library ; (2) marine microbes brought to you by the International Census of Marine Microbes , (3) microbes from extreme habitats brought to you by the NASA Astrobiology Institute , and (4) microbial imagery from the Bay Paul Center .
Instructions here. is a communal web site that provides descriptive information about all kinds of microbes. It combines locally assembled content with links to other expert sites on the internet. We provide special services for educational purposes. Plankton*net is a communal source of information about marine phytoplankton. A bulletin board for users and contributors has been established in the marine microbes forum.
In collaboration with the uBio project , we use taxonomic principles and expertise to manage information about organisms. if you wish to comment, contribute or correct. MarBOL:: Marine Barcode of Life Initiative. J. Craig Venter Institute. Project Overview - Microbial Genome Sequencing Project - Gordon and Betty Moore Foundation. International Census of Marine Microbes (ICOMM) Marine biology. Only 29 percent of the world surface is land. The rest is ocean, home to the marine lifeforms. The oceans average nearly four kilometres in depth and are fringed with coastlines that run for 360,000 kilometres.[1][2] A large proportion of all life on Earth exists in the ocean.
Exactly how large the proportion is unknown, since many ocean species are still to be discovered. Marine life is a vast resource, providing food, medicine, and raw materials, in addition to helping to support recreation and tourism all over the world. Many species are economically important to humans, including food fish (both finfish and shellfish). History[edit] The observations made in the first studies of marine biology fueled the age of discovery and exploration that followed.
The creation of marine labs was important because marine scientists had places to conduct research and process their specimens from expeditions. Subfields[edit] Related fields[edit] Animals[edit] Birds[edit] Fish[edit] Invertebrates[edit] Marine life < Ecosystem < Ministry of Fisheries and Agriculture. Marine Natural Products and Antagonistic Properties of Marine Organisms for Human Health | Pharma Asia. Marine microorganisms are of considerable interest as a new promising source for bioactive substances.
Posted on 01 October 2006 Dr. A. S. NinawePhD, Director,Department of Biotechnology,Block II, CGO Complex, Lodhi Road,New Delh As chemically interesting and bio- logically significant secondary metabolites, marine microorganisms are expected to serve as lead compounds for potential drug development or pharmacological tools for basic research in life sciences. The metabolic and physiological capabilities of marine microorganisms that allow them to survive on their unique habitats also provide a great potential for production of metabolites, which are not found in terrestrial environments. Figure 1. The ocean as a source Over the past decade, marine microbes have been recognized as an untapped resource for novel bioactive compounds.
The marine environment ranges from nutrient-rich regions to nutritionally sparse locations where only a few organisms can survive. Life-saving drugs Enzymes. Who Are The Extremophiles? Diatoms can be found living in a wide variety of extreme environments, including ancient Antarctic Ice. Some believe they may even exist on Europa and in interstellar dust.
The above diatom, Surirella, was collected from the alkaline and hypersaline Mono Lake. Details An extremophile is an organism that thrives under "extreme" conditions. The term frequently refers to prokaryotes and is sometimes used interchangeably with Archaea. In this module, however, you will find that extremophiles come in all shapes and sizes, and that our understanding of the phylogenetic diversity of extreme habitats increases daily. The term extremophile is relatively anthropocentric. Most terms used to describe extremophiles are generally straightforward. Acidophile: An organism that grows best at acidic (low) pH values. Cyanobacteria, the first ever oxygenic photosynthesizers, are said to be the source of chloroplasts in eukaryotes. ANIMAL KINGDOM :: SIMPLE ORGANISMS AND ECHINODERMS :: SPONGE image.
Sponge Porous multicell organism, mostly marine (currently about 5,000 species); it anchors itself to a support and filters water to take in food particles. anatomy of a sponge pinacocyte Flat ectodermal cell forming the outer covering of the sponge. spongocoel Hollow portion of the sponge covered with choanocytes, in which water circulates before exiting through the osculum. mesohyl Gelatinous substance, rich in water, located between the ectoderm and the endoderm. endoderm Inner layer of the sponge formed of cells (choanocytes) whose role is mainly to feed the organism. ectoderm Outer layer of the sponge formed of cells (pinacocytes) whose role is mainly to protect the organism. incurrent pore Opening into the gastric cavity, through which water enters the sponge. osculum Large opening protected by spicules, through which the sponge discharges water from the gastric cavity. water flow Choanocyte flagella allow water to move inside the sponge, carrying oxygen and food particles to it. choanocyte.