First, the unique light patterns can be helpful for deep sea organisms to find mates. Second, male organisms are usually tiny in comparison to females, so they can easily attach themselves to their mate, forming "a parasitic-like relationship" for life--the male merges its blood vessels with the female's to receive nourishment, and the female is provided with a "reliable sperm source" for reproduction.
2. How do oceanographers know where to look for/have a good chance of finding hydrothermal vent communities given the vastness of the ocean? Why?
According to the link, the water temperature of hydrothermal vents is much warmer than normal for …show more content…
Organisms living in vent communities get energy in hydrogen sulfide by converting carbon dioxide into sugars.
4. Follow the IMCS links at the end of the hydrothermal vent section to quickly remind yourself of the organisms David Gallo talked about in the Ted Talk video
5. Describe some of the fundamental differences between a hydrothermal vent and cold seep vent in terms of non-living factors as well as living organisms.
Speaking of the major differences between a hydrothermal vent and cold seep vents, besides hydrogen sulfide, the seep vent has cold methane plus oil seep out of sediments to provide abundant energy; but the hydrogen sulfide is the only main energy source in the hydrothermal vent. Hence, some living organisms in the cold seep vent use methane instead of sulfide to convert it into sugar.
6. Watch the deep sea fishing video at the bottom of the page and summarize its contents here in a few sentences.
- The deep sea has an amazing bio-diversity, and tons of unique ecosystem were discovered there.
- Lots of habitats in the deep sea took thousands of year to form; hence, they are stable but also