What is the role of marine life?

Introduction What is the role of marine life? The surface of the oceans represents more than 70% of the earth's surface. Due to the vast distribution of the ocean, different types of sea areas, and different depths of the ocean itself, the connection between the ocea

What is the role of marine life?

The ocean area represents more than 70% of the earth's surface. Due to the vast distribution of the ocean, the various types of marine areas, the different depths of the ocean itself, and the unique characteristics of the interface between the ocean and land, the diversity of marine life and multiple close connections with terrestrial ecosystems were formed. Marine life plays an important role in life on land and in the entire biosphere and has a significant ecological impact.

Marine life includes coastal wetlands and offshore life (such as mangrove communities in tropical and subtropical estuaries and bays), seagrass communities in coastal waters shallow sea biomes, and deep sea ocean biomes. There are a large number of aquatic plants and plankton living on the surface of shallow sea areas and deep sea areas, whichcan carry out photosynthesis and are major producers of marine life. Particularly in ocean areas far from land, seawater is poor in nutrients and autotrophic plankton which carry out photosynthesis are the main primary producer and the basis for the survival of other marine animals, such as cyanobacteria and nitrogen-fixing cyanobacteria. The depths of the ocean are dark places where light cannot penetrate and where there is no primary productivity. However, there are also a large number of animals that rely on food transferred from the water surface to survive. These animals have developed particular adaptation skills. such as the formation of light organs and areas of weak light. Particularly developed vision, enlargement of prey organs, male and female symbiosis, etc. In short, marine life has formed a complete three-dimensional system of distribution andof energy use around the ocean and land.

(1) Marine organisms are the greatest environmental purifiers on Earth. Various organic materials, metabolites, and environmental releases produced by terrestrial organisms enter the ocean through rivers or the atmosphere, and settle on the seafloor and dissolve in water. Marine organisms capture these substances, stabilizing the seafloor sediment layer and cleaning the seafloor. body of water. eutrophication and increasing water transparency. Without a large amount of marine life, organic pollution of seawater will continue to accumulate, the terrestrial ecology will not be balanced, and terrestrial life will not survive.

(2) Marine life provides abundant products to life on land. A large number of marine plants and animal products supplement the terrestrial organic food chain. In certain regions, the marine economy constitutese the main dependence of humanity. As the world's population increases and land resources become scarcer, the development of marine resources will become increasingly important. Land animals along the coast depend on marine life for their survival. For example, mangroves provide an important range for birds, crustaceans, reptiles, seagrasses, algae and other plants that provide food sources for birds and terrestrial animals.

(3) Damage caused by abnormal growth of marine life. Due to accelerating human activities and rapid consumption of land resources, a large amount of organic matter and toxic pollutants are released into the ocean, leading to a decrease in offshore wildlife, an increase in plankton, or excessive growth of seagrass beds, leading to improper developmentfree from marine life. As a result, a large-scale regional epidemic has emerged. This affects the living environment of terrestrial organisms. Protecting marine ecology and marine life is another challenging task of the 21st century.

Knowledge points

Sea water temperature

Sea water temperature is a physical quantity that reflects the thermal conditions of the sea ​​water. The water temperature of the world's oceans generally ranges between -2°C and 30°C, with the annual average water temperature exceeding The area above 20 ℃ accounting for more than half of the total surface area of ​​the ocean. Sea water temperature exhibits cyclical and irregular changes in days, months, years, and years, which mainly depend on the ocean heat budget and its temporal changes. Direct observation shows that the diurnal variation of sea water temperature is very small, that the water depth varies from0 to 30 meters and that the annual variation can reach a water depth of around 350 meters. At a water depth of around 350 meters there is a constant temperature layer. However, as depth increases, water temperature gradually decreases (approximately 1° to 2°C for every 1,000 meters of depth). At a water depth of 3,000 to 4,000 meters, the temperature reaches 2° to 1°C. Sea water temperature is one of the most important factors in the hydrological conditions of the oceans. It is often used as a basic indicator to study the properties of water masses and describe the movement of water masses. The study of the spatio-temporal distribution and temperature changes of sea water is not only an important part of oceanography, but also important for disciplines such as meteorology, navigation, fisheries and hydroacoustics.

  • Popular Focus
  • Where is the cheapest battery wholesale?

    Where is the cheapest battery wholesale in Tangxia, Sanyuanli, Baiyun District? There is an enterprise specializing in the independent production of electric vehicles in Tangxia, Sanyuanli, Baiyun District, Baiyun Sanyuanli Avenue, Baiyun Sanyuanli Street
    08-02
  • Understanding 18650 Voltage: A Comprehensive Guide to Lithium-Ion Battery Power

    Lithium-ion batteries have become the backbone of modern portable electronics, providing the energy needed for everything from smartphones to electric vehicles. Among the various types of lithium-ion batteries, the 18650 battery stands out as a popular ch
    08-27
  • What are the materials of the negative electrodes of lithium batteries?

    What are the materials of the negative electrodes of lithium batteries? The main commercial applications of lithium batteries include graphite, which is a sheet of copper used to guide current and which does not react. another safe
    08-02
  • The difference between 18500 and 26500 batteries

    What is the difference between 18500 and 26500 batteries? The answer above is 18650. The person asking the question should ask what is the difference between 18505 and 26500 batteries. In the case of Fuant ER1
    08-02
  • What does 3.7V 80mAh written on a lithium battery mean?

    What does 3.7V 80mAh written on a lithium battery mean? 3.7 V, 80 mA = 0.08 A, H means 1 hour, or 3600 seconds. Taken together, it is
    08-02
  • How long does a lithium battery (cell phone battery) last?

    How long does a lithium battery (cell phone battery) last? The lifespan of mobile phone batteries, under normal conditions of use and without serious impact, the lifespan set by the manufacturer must be 5 years.
    08-02
  • Will lithium batteries explode when charging?

    Will lithium batteries explode when charged? Will lithium batteries explode when charged? Lithium battery explosions usually occur during the charging process, because the negative electrode material of lithium batteries is graphite or other carbon materi
    08-02
  • Parameters of lgdas31865 lithium battery

    Parameters of lgdas31865 lithium battery The parameters of lgdas31865 lithium battery are as follows: LGDAS31865 is a model 18650 lithium battery with a capacity of
    08-02
  • What are the main components of lithium battery electrolyte?

    What are the main components of lithium battery electrolyte? The composition of lithium battery electrolyte is shown below. 1. Ethylene carbonate: molecular formula C3H4O3. Colorless transparent liquid (>35℃), room temperature
    08-02
  • Who are the lithium battery manufacturers in Shandong?

    What are the lithium battery manufacturers in Shandong? Shandong Shengyang Power Supply Co., Ltd. and Shandong Weineng Environmental Protection Power Technology Co., Ltd. 1. Shandong Shengyang Power Supply Co., Ltd. is located in Shengyang, Qufu City.
    08-02
  • Types of drone batteries available in 2024

    Part 1. Types of drone batteries available in 2024In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in
    07-30
  • How long does it take to charge 26650 battery?

    How long does it take to charge a 26650 battery? The charging time for a 26650 battery is generally between 3 and 6 hours, but the precise time depends on the power of the charger and the capacity of the battery. in general
    08-02
  • For what?Sure, here's an article based on the phrase "For what?

    The simple yet profound question, "For what?" often serves as a gateway to deeper reflections on purpose and intention. It is a query that invites us to delve into the reasons behind actions, decisions, and circumstances that shape our lives and the wor
    08-02
  • Choosing the Right Cart Battery

    This comprehensive guide will walk you through everything you need about cart batteries, from understanding different types to making an informed purchase decision.
    08-02
  • 30mAh~500mAh 3.7 V Li-ion Battery

    Welcome to Ufine's collection of 3.7V lithium-ion batteries ranging from 30mAh to 500mAh. Explore a diverse range of compact and lightweight batteries suitable for various electronic devices,
    08-02
  • Here are 10 essential facts about drone batteries for 2024.

    10 Key Facts About Drone Battery for 2024 In 2024, drone batteries have advanced significantly, offering a range of options to cater to various needs in the consumer, commercial, and industrial sectors. Below are the primary types of drone batteries avai
    08-02
  • Could you please explain the difference among IMR, ICR, INR, and IFR 18650 batteries?

    What is the Difference Between IMR, ICR, INR, and IFR 18650 Battery?In 18650 batteries, discerning the differences among IMR, ICR, INR, and IFR types is fundamental for tailored and efficient battery usage. These distinct
    08-02
  • Safety considerations for cart batteries

    Selecting the ideal cart battery is crucial for ensuring optimal performance and longevity of your electric vehicle or vaping device. This comprehensive guide w
    08-01