Marine scientists are using all kinds of sciences to help them understand and study the ocean world. Learning about marine organisms required biology, knowing the chemical properties in the ocean involve chemistry and climatology relates to the study of the climate affecting the water are some examples. Oceanography covers wide range of topics, from marine organisms to plate tectonics and the geology of the ocean floor.
Both biotic and abiotic factors influence each other. If one factor in an ecosystem change, perhaps by pollution or natural phenomenon, the whole system can be alter or disrupt. Health of the oceans are more important than we think. They cover 71% of the world and is home for almost all living matters. The effects of climate changing on ocean animals are more visible everyday. The increase in average temperature of the atmosphere and the ocean cause from humans’ actions – greenhouse gases – or from the nature itself, such as Earth’s orbit around the Sun, solar activity, and volcanic emissions.
One of the most dramatic change in the ocean from climate changing is coral bleaching. Coral reefs can only tolerate a narrow temperature, high temperature water lead to their death. They provide a home for at least 25% of the marine organisms.
However, it is found that Eilat’s corals have better chance of survival than other sites.
DID YOU KNOW?…
Many fish can change sex during their lifetime! Especially rare deep-sea fish, have both male and female sex organs.
It was a perfect afternoon when my marine science class decided to go for a walk behind our school. We started off near the ‘Blue Heron’ stream, a small and quite area. The bridge over the waterway was the place we chose to meet. Like any other little stream during summer time, the area was dry but not to the point of drought. There was very little water and was not flowing. Just a pile of dirty water farther down the left of the bridge was seen. The inlet seemed to be blocked by some kind of plants or weeds. Dehydrated vegetation was all around. However, in some shady area under the bigger trees, the shrubs are quite moist and lively. The right side of the stream was full of tall shrubs and grass. Right there was a colony of spiders! I was trying my very best not to step in any of them. One of my classmates pointed out that it might have been their mating season.
After we all jotted down our observations, we followed a path into the ‘Memorial Park Forest.’ It was a little bit cooler there, as the tall trees blocked off some of the sun light. The forest might have been a site for the logging industry a long time ago. There was one huge tree that we estimated to be around 400 years old. Because if it’s bark and fallen pine cones, we were able to identified that it was a Douglass-fern tree that had remained untouched from logging. As we continued our walk, one of my friends stopped to look at the Ivy plants with whites speckles all over them. They might have been injected with disease, I thought. Suddenly we all heard “HOOT! HOOT!”. It was a Barred owl!! We then realized the white speckles on the plants were actually their droppings. That was the highlight of my afternoon.
“Earth and sky, woods and fields, lakes and rivers, the mountain and the sea, are excellent schoolmasters, and teach some of us more than we can ever learn from books.”
― John Lubbock