Jack Xia 2nd period A day Apes Effect of pH on Crayfish Growth Ecostudy In this study, the effect of ph on crayfish growth will be investigated. This experiment will help scientists understand how different levels of PH can have a negative or positive effect on organisms, specifically crayfish. This study could ultimately help scientists further understand the importance of wetlands and how environmental changes in the wetlands can affect the organisms that live in it. The experiment itself will analyze the effects of PH’s on the growth of crayfish by conducting a careful, controlled experiment that specifically targets the two variables. In this experiment, the PH is the independent variable, as it is predetermined based on the experiment and is not effected by anything else.
A process called mass bleaching has also become a danger to coral reefs. Mass bleaching happens when water temperatures rise to unusual levels, which then causes the coral to release colorful microscopic algae that usually provide the coral polyps with food. This process affects plankton and other small organisms, which in turn affects the fish that typically feed on such organisms. The affect of climate change on coral reefs is only one prime example of how climate change can affect marine life. Phytoplankton populations have also been affected by the warming temperatures in the ocean.
“A growing body of research demonstrates that the maintenance of marine biodiversity may be key for sustained ecosystem health and resilience against global change, suggesting that managing for marine biodiversity may help resolve conflicting management objectives, and enhance the nation’s biosecurity. Thus, biodiversity might serve as a master variable in evaluating both the health of marine ecosystems and the success of management efforts” (National Council for Science and the Environment, 2011, p.p.
I think the government should make fishing seasons just like they have hunting seasons. I am going to help the ocean by being more energy efficient. This will help marine life because being energy efficient helps stop global warming. I am going to participate in cleanups at the ocean. Cleaning the trash near and around the ocean will help not to pollute the ocean.
Q.4b) Describe and evaluate the success of methods that might be employed to protect coastline. [15] Answers: There are two types of methods that are commonly used to protect the coastline. They are: 1) Hard engineering 2) Soft engineering Hard engineering Uses structure which aims to resist the energy of waves and tides. Examples of hard engineering: 1) Sea walls 2) Wooden groynes 3) Gabion groynes 4) Rock Armour/Rip Rap Soft engineering Solutions work with natural processes and provide more environmentally approach to the management of coastal erosion and flooding. (Does not aim to stop the coastal erosion completely) Examples of soft engineering: 1) Beach replenishment 2) Beach drainage HARD ENGINEERING Sea walls A seawall is a form of coastal defence constructed where the sea, and associated coastal processes, impact directly upon the landforms of the coast.
The voyage that Thomson did it had birthed oceanography. All this data that Thomson collected was served as a basis for the study of Marine Biology for many years. A British explorer, Edward Forbes, said that marine life doesn’t exist below 550 m or 1,800 feet in sea. The HMS Challenger was well built and stocked with a lot of supplies. It had laboratories on the ship and microscopes, chemistry supplies, trawls, and dredges etc.
Many don’t realize that they provide humans with a source of income and more importantly, life for a wide diversity of marine animals. By 2050, there is a possibility that the coral reefs might die out if their habitats continue to worsen (Trinh, 2012). This paper reviews information on what coral reefs are, the importance of coral reefs, information on the Florida Keys and Caribbean, explains the problems they face, and how coral reefs can be helped. INTRODUCTION Coral reefs, one of the most diverse ecosystems, provide life to a variety of marine animals (Coral Reef Protection, 2012). Reefs have been called the “rainforests of the sea,” because they provide homes to numerous marine animals (Trinh, 2012).
Seaweeds are one of the largest producers of important marine living renewable resources being one of the major components of primary biomass production in coastal maritime ecosystems. According classification systems, they are classified into green algae (Phylum Chlorophyta), red algae (Phylum Rhodophyta) and brown algae (Phylum Ochrophyta or Heterokontophyta) depending essentially on their particular pigment composition and/ or chemical composition. These marine organisms play essential ecological functions in marine environment as habitat and substrata for invertebrates, fish, mammals, and birds and drastic reduction of their communities directly influences marine biodiversity, as well as reproduction, recruitment, and growth rates of marine
Why as there not been a push for international policies to help protect coral reefs? Section 1: Coral Reefs are an important ecosystem that our planet needs to function correctly. Coral is a living organism that forms in colonies which can stretch out for hundreds of miles long and are then called coral reefs. These coral reefs are habitats for a large number of marine species. There are about 600,000 km of coral reef worldwide (State of the Reefs).
• INTRO: Within the world’s oceans, the greatest variety of life is found on amazing living structures called coral reefs. These fragile reefs play a critical role in sustaining a thriving ocean habitat, especially in tropical oceans. They also provide many benefits to humans as well. Yet, coral reefs are built by tiny animals, each smaller than a pencil eraser. Coral reefs are spectacular to behold, lush gardens in the sea, supporting a staggering diversity of marine life in a densely packed, thriving marine metropolis.