Roles of fishing and climate change in long-term fish species succession and population dy
气候对水产的影响英语作文
气候对水产的影响英语作文The Impact of Climate on Aquaculture。
Climate plays a crucial role in the success of aquaculture, as it directly affects the growth, reproduction, and survival of aquatic organisms. Changes in temperature, precipitation, and other climate variables can have significant impacts on water quality, habitat availability, and the overall health of aquaculture systems. In this essay, we will explore the ways in which climate influences aquaculture and discuss potential strategies for mitigating its effects.One of the most significant ways in which climateaffects aquaculture is through changes in temperature. Temperature plays a critical role in the growth and development of aquatic organisms, as it affects their metabolic rates, feeding behavior, and overall health. As temperatures rise, aquatic organisms may experience stress, decreased growth rates, and increased susceptibility todiseases. Conversely, colder temperatures can slow down metabolic processes and reduce the availability of food sources, leading to stunted growth and decreased reproductive success.In addition to temperature, changes in precipitation patterns can also have a significant impact on aquaculture. Increased rainfall can lead to changes in water quality, as runoff from the land can introduce pollutants, sediments, and other contaminants into aquaculture systems. This can lead to decreased water clarity, oxygen levels, and overall water quality, which can have negative impacts on thehealth and growth of aquatic organisms. Conversely, decreased precipitation can lead to drought conditions, which can reduce water availability and lead to increased salinity levels in aquaculture systems.Furthermore, extreme weather events, such as hurricanes, typhoons, and severe storms, can have devastating effectson aquaculture. These events can lead to physical damage to aquaculture infrastructure, loss of stock, and disruptionof water quality. In addition, the increased frequency andintensity of these events due to climate change can pose significant challenges for aquaculture producers, as they may struggle to recover from the impacts of these eventsand maintain the long-term sustainability of their operations.Given the significant impacts of climate on aquaculture, it is essential for producers to develop strategies for mitigating these effects and adapting to changing climate conditions. One potential strategy is to invest in infrastructure and technology that can help to protect aquaculture systems from extreme weather events, such as storm surge barriers, elevated aquaculture facilities, and improved water management practices. Additionally,producers can implement monitoring and early warning systems to detect changes in water quality and temperature, allowing them to take proactive measures to protect their stock and maintain the health of their aquaculture systems.Furthermore, it is essential for aquaculture producersto develop sustainable practices that can help to reduce their contribution to climate change and minimize theirvulnerability to its impacts. This can include implementing energy-efficient technologies, reducing the use of fossil fuels, and promoting the use of renewable energy sources. Additionally, producers can work to minimize their environmental impact by reducing the use of chemical inputs, implementing sustainable feed practices, and promoting habitat restoration and conservation efforts.In conclusion, climate plays a significant role in the success of aquaculture, as it directly influences the growth, reproduction, and survival of aquatic organisms. Changes in temperature, precipitation, and extreme weather events can have significant impacts on water quality,habitat availability, and the overall health of aquaculture systems. However, by implementing proactive measures and sustainable practices, aquaculture producers can work to mitigate the effects of climate change and ensure the long-term sustainability of their operations.。
河流和湖泊的重要性英语作文
河流和湖泊的重要性英语作文The Significance of Rivers and LakesRivers and lakes are integral components of our planet's intricate ecosystems, playing vital roles in sustaining life and shaping the natural landscape. These bodies of water hold immense significance, serving as valuable resources for human societies, supporting diverse flora and fauna, and influencing the overall balance of the environment.One of the primary reasons for the importance of rivers and lakes is their role in providing water for human consumption and various activities. These water sources are essential for domestic use, agricultural irrigation, and industrial processes. The availability of clean and accessible water is a fundamental requirement for human survival and development, and rivers and lakes are the primary sources of this precious resource.Moreover, these water bodies serve as habitats for a wide range of aquatic species, including fish, amphibians, and aquatic plants. They support intricate food webs, providing sustenance and shelter for numerous organisms. The diversity of life found in rivers and lakes isa testament to the delicate balance of these ecosystems and their importance in maintaining the overall health of the natural world.Beyond their ecological significance, rivers and lakes hold immense cultural and recreational value. Many civilizations have historically settled along the banks of these water bodies, utilizing them for transportation, trade, and cultural festivities. Rivers and lakes have also become popular destinations for recreational activities such as fishing, boating, and swimming, allowing people to connect with nature and enjoy the serenity these water bodies provide.Furthermore, rivers and lakes play a crucial role in the water cycle, the continuous movement of water on, above, and below the Earth's surface. These water bodies act as reservoirs, storing and regulating the flow of water, which is essential for maintaining the balance of the hydrological cycle. This cycle, in turn, influences weather patterns, climate, and the overall health of the environment.However, the importance of rivers and lakes is not without its challenges. The increasing human demand for water, coupled with the effects of climate change and environmental degradation, pose significant threats to the integrity of these water bodies. Pollution, overexploitation, and the disruption of natural habitats can lead to the depletion and deterioration of rivers and lakes, with far-reaching consequences for both human and ecological communities.To address these challenges, it is crucial that we recognize the importance of rivers and lakes and take collective action to protect and preserve these vital resources. This may involve implementing sustainable water management practices, reducing pollution, and restoring degraded ecosystems. By prioritizing the conservation of rivers and lakes, we can ensure that these water bodies continue to provide essential services and maintain the delicate balance of the natural world.In conclusion, rivers and lakes are indispensable components of our planet, holding immense significance for human societies, ecological systems, and the overall well-being of the environment. Their importance cannot be overstated, and it is our responsibility to safeguard these precious resources for present and future generations. By recognizing the value of rivers and lakes and taking proactive steps to protect them, we can work towards a more sustainable and harmonious coexistence with the natural world.。
小鱼在呼唤保护生态环境英文作文
小鱼在呼唤保护生态环境英文作文A Little Fish's Plea to Protect Our EnvironmentHello, my name is Finley and I'm a little clownfish living in the warm waters of the coral reef. I may be small, but I have a big voice and an even bigger message to share with all of you human friends out there.You see, the ocean is my home – a beautiful, vibrant world teeming with incredible life. From the brilliant colors of the coral to the mesmerizing dance of the sea anemones, there is magic and wonder everywhere I look. My fishy friends and I spend our days darting through forests of swaying kelp and exploring mysterious underwater caves.But lately, things in my ocean home haven't felt quite right. The water doesn't seem as clear as it once was. The coral reefs that provide shelter and food for so many creatures are turning a sickly white color. And there is trash and debris drifting all around, endangering my friends and I.At first, I didn't understand what was happening. But then I overheard some bigger fish talking about something called "pollution" caused by human activities on land. They said the ocean was becoming unhealthy because of chemicals, plasticwaste, and other harmful things making their way into the water from cities, factories, and careless litter.I was horrified to learn that human carelessness and disregard for the environment was threatening to destroy my beloved home and the homes of countless other ocean animals. How could you do this to us? Don't you realize that the health of the oceans impacts the whole planet?The coral reefs are nurseries for so many fish species. They provide food, protection from predators, and jobs for millions of humans who depend on tourism, fishing, and otherocean-related industries. But pollution and climate change are killing the reefs at an alarming rate. Before you know it, they could all be gone if we don't act now!And it's not just coral reefs that are suffering. Trash and plastic waste are choking marine animals and clogging our bodies with toxins. Six-pack plastic rings trap sea turtles and birds. Balloons and plastic bags are often mistaken for food like jellyfish. Have you ever tried eating a plastic bag? Trust me, it's not a pleasant experience!On top of that, carbon emissions from human industry are being absorbed into the ocean, causing it to become more acidic over time. This rising acidity makes it harder for animals like meto grow our protective shells and skeletons. It's kind of like getting terrible osteoporosis!I don't want to leave my ocean home. It's the only place I've ever known. But this pollution problem has got to stop before it's too late for me, my friends, and so many other creatures in the sea. We're utterly dependent on you humans to make some big changes to save our environment.So here's my plea to all you kids and adults out there:First, try to reduce the amount of plastic you use and be very careful about how you dispose of it. Plastics don't belong in the ocean! Bring reusable bags when you go shopping instead of taking new plastic ones. Recycle bottles, containers, and other plastics instead of just throwing them away. And never, ever litter!Next, conserve energy and cut down on carbon emissions anyway you can. Walk, ride your bike, or take public transportation instead of riding in cars or buses as much as possible. At home, turn off lights and electronics when you're not using them. And ask the adults in your life to consider trading in gasoline-powered vehicles for electric or hybrid models that are less polluting.Also, reduce, reuse, and recycle as much as you can in general. The more we can keep out of landfills and oceans, the better! Get creative about reusing items in new ways instead of just throwing them out. At school, make sure you recycle plastic bottles, cans, paper, and more. You can even start a recycling program if your school doesn't already have one.Finally, get out there and take action to actively protect the environment. Do beach or park clean-ups to remove litter. Get involved with a local conservation group. Or create some cool art or writing projects about pollution problems to educate others. Anything you can do to raise awareness of these critical issues will make a huge difference.I know this all might sound like a big challenge, but every little thing you do adds up to something huge for the planet. Just look at how many of you human kids there are! If everyone does their part, we can absolutely turn this situation around and keep the oceans healthy and beautiful for many years to come.We're all inhabitants of this pale blue dot we call Earth. The oceans flow through every continent and connect every human being. What happens in the seas impacts every living creature, even those far away on land. We're all in this together, finned or no fins!So please, I'm begging you. Help protect the environment and save the oceans from pollution and destruction. Do it for the coral reefs, the sea turtles, the whales, and for little fish friends like me. The oceans are our planet's lifeblood and we need to keep them healthy and thriving.I may be just a small clownfish, but my voice rings out with the message of all ocean life. We're calling out for you to be our guardians and protectors. Don't let us down!Thank you, fin-riends! The future of the oceans is in your hands.Bubbles and love,Finley the Clownfish。
关于海洋英文作文
关于海洋英文作文1. The ocean is vast, mysterious, and full of life. Its deep blue waters stretch as far as the eye can see, and its depths hold countless secrets waiting to be discovered. The ocean is a world of its own, teeming with creatures big and small, from the mighty whales to the tiny plankton. It is a place of beauty and wonder, where the waves crash against the shore and the salty breeze fills the air.2. The ocean plays a crucial role in our planet's ecosystem. It regulates the Earth's temperature, absorbs carbon dioxide, and produces oxygen. It is the source of life, providing food and resources for millions of people around the world. From fish to seaweed, the ocean is a bountiful pantry that sustains both humans and animals alike. It is a delicate balance that must be protected and preserved for future generations.3. However, the ocean is also facing numerous threats. Pollution, overfishing, and climate change are all takingtheir toll on this fragile ecosystem. Plastic waste litters the water, endangering marine life and disrupting the natural balance. Coral reefs, the rainforests of the sea, are dying at an alarming rate due to rising ocean temperatures. It is a race against time to save our oceans before it's too late.4. Fortunately, there are efforts being made to protect and restore the ocean. Conservation organizations are working tirelessly to clean up the beaches, promote sustainable fishing practices, and raise awareness about the importance of preserving marine life. Governments are implementing policies to reduce plastic waste and regulate fishing activities. Individuals are also taking action, making small changes in their daily lives to reduce their carbon footprint and minimize their impact on the ocean.5. The ocean is a place of adventure and exploration. Scuba diving allows us to witness the beauty of coral reefs up close, while sailing takes us on a journey across the vast expanse of the sea. Surfing, snorkeling, and swimming are all ways to connect with the ocean and experience itspower and tranquility. Whether it's watching the sunset over the water or feeling the sand between our toes, the ocean has a way of captivating our senses and leaving us in awe.6. In conclusion, the ocean is a treasure trove of life and wonder. It is a vital part of our planet's ecosystem and must be protected for future generations. Through conservation efforts and individual actions, we can ensure that the ocean remains a source of beauty, inspiration, and sustenance for years to come. Let us all do our part to preserve this magnificent and irreplaceable resource.。
海洋的重要性英语作文
海洋的重要性英语作文The Importance of the Ocean。
The ocean covers over 70% of the Earth's surface and plays a crucial role in sustaining life on our planet. Itis the source of food, energy, and transportation for millions of people around the world. In addition, the ocean regulates the Earth's climate, absorbs carbon dioxide, and produces oxygen. Therefore, it is essential that we understand and appreciate the importance of the ocean and take steps to protect it.One of the most important functions of the ocean is its role in the global food chain. The ocean is home to a vast array of fish, shellfish, and other seafood that provide a vital source of protein for billions of people. In fact, over 3 billion people rely on seafood as their primary source of protein. Without the ocean, many communities around the world would struggle to feed themselves.In addition to being a source of food, the ocean also provides a significant source of energy. Offshore wind farms, tidal power, and wave energy are all examples of renewable energy sources that harness the power of the ocean. These sources of energy are essential for reducing our dependence on fossil fuels and mitigating the effects of climate change.The ocean also plays a critical role in transportation. Over 90% of the world's trade is carried by sea, making shipping an essential part of the global economy. The ocean provides a cost-effective and efficient way to transport goods around the world, and many countries rely on shipping to sustain their economies.Furthermore, the ocean plays a vital role in regulating the Earth's climate. The ocean absorbs and stores vast amounts of carbon dioxide, which helps to mitigate the effects of climate change. Additionally, the ocean produces oxygen through photosynthesis, which is essential for life on Earth.Despite its importance, the ocean is facing numerous threats. Pollution, overfishing, and climate change are all putting the health of the ocean at risk. Plastic pollution is a particular concern, with an estimated 8 million tons of plastic entering the ocean every year. This pollution harms marine wildlife and can even find its way into the food chain, posing a risk to human health.To protect the ocean, we must take action. Governments, businesses, and individuals all have a role to play in reducing pollution, conserving marine habitats, and promoting sustainable fishing practices. We must also take steps to mitigate the effects of climate change, such as reducing our carbon emissions and investing in renewable energy sources.In conclusion, the ocean is a vital part of our planet and plays a crucial role in sustaining life on Earth. We must understand and appreciate its importance and take steps to protect it for future generations. By working together, we can ensure that the ocean remains a healthy and vibrant ecosystem that continues to provide for us all.。
2019年12月六级答案完整版
2019年12月六级考试参考答案完整版四六级试卷采用多题多卷形式，大家核对答案时，找准具体选项内容，忽略套数。
写作（共三套，忽略套数，只核对内容）第一套：The Importance of Having a Sense of Social ResponsibilityAs we all know, responsibility is one of the most basic qualities. If we give up the responsibility, we are equal to give up the whole world. As far as I am concerned, we should have a high sense of responsibility to become an upright person.How can we cultivate social responsibility? To start with, children should be taught about good moral outlooks, so that when they grow up, they will become law-abiding and responsible citizens. Furthermore, the humanistic education is vital, especially for us university students because we are the future pillars of our country. Last but not least, it is necessary to encourage people to care for others, help others throughall kinds of propaganda, because each individual is closely related to and bears obligations to others.If all the citizens have a sound sense of social responsibility, it is hopeful that the world will enjoy a better future. Therefore, let's take our social responsibility and contribute to our society.第二套：The Importance of Having a Sense of Family ResponsibilityHome is a warm harbor for every family member. It brings us warmth, and gives us strength over the long course of our lives. While enjoying the benefits of the family, everyone should have a sense of family responsibility and contribute to the happiness of the family life.To begin with, as a member of the family, everyone is obliged to take on family responsibilities. Secondly, by taking family responsibilities, the relationship between family members can be strengthened, thus a harmonious family can be created, which can make each family member feel a sense of belonging. A good growing environment will influence one’s psychological development and ultimately one’s personal development. More than that, each person with a good sense of familyresponsibility will develop a good sense of social responsibility, which will do good to our society.To sum up, it is of great importance for everyone to have a sense of family responsibility, not only in that it strengthens family bond, thus do good to one’s personal development, but that it is beneficial to the social development. So, my dear friends, please take an active part in your family responsibilities!第三套：The Importance of Having a Sense of Community ResponsibilityWe all live in community. Community responsibility is an individual's duty or obligation to the community, which includes cooperation, respect and participation. The concept goes beyond thinking and acting as individuals to common beliefs about shared interests. With the development of society and interpersonal communication, it has gradually become a basic requirement for everyone.In my opinion, the sense of community responsibility is equally important to the development of community and the growth of individuals. As a college student, the sense of community responsibility means that we should give priority to the interests of the our schooland class. If everyone takes on our own responsibilities, we can not only make our school better, but also improve our moral standard. As a citizen, we should pay more attention to the collective interests and exercise our obligations as citizens, such as participating in community voting and promoting environmental protection, etc. If everyone contributes our part, everything around us will become better.All in all, all of us should assume our community responsibilities, take the collective interests first and think more about others. Only in this way, will social development be more smooth and the relationship between people become more harmonious.听力（共2套）第一套：Section A: 1-81. D) Features editor.2. C) Answering daily emails.3. B) It is fascinating.4. A) Her persistence.5. A) It is enjoyable.6. D) It is written, directed, edited and produced by Frankie himself.7. D) Download and watch it.8. B) It has been showing for over a decade.Section B: 9-159. C) They need to keep moving to avoid getting hurt.10. A) They do not have many years to live after retirement.11. A) It prevents us from worrying.12. B) It wanders for almost half of their waking time.13. A) To find how happiness relates to daydreaming.14. C) It contributes to their creativity15. D) Daydreamers did better than non-daydreamers in task performance.Section C: 16-2516. D) They are in worsening condition.17. C) They are without foundations.18. C) Timber was abundant in Scandinavia.19. D) Abilities of human babies.20. A) They can distinguish a happy tune from a sad one.21. B) Babies emotions.22. B) It may hinder individual career advancement.23. C) They may find it hard to get their contributions recognized.24. A) They can enlarge their professional circle.25. B) It may prevent making a timely decision.第二套：Section A: 1-81. A) It focuses exclusively on jazz.2. B) Its market has now shrunk.3. A) Its definition is varied and complicated.4. C) Listen to them yourself.5. D) She went to the bank.6. B) Her credit history was considered poor.7. C) Start her own business.8. C) Build up her own finances step by step.Section B: 9-159. C) It is small and unconventional.10. D) Their wish to set a new farming standard.11. D) It loosens soil while seeding.12. A) It has turned certain insects into a new food source.13. B) It was a pleasant surprise.14. C) They contain more protein than conventional meats.15. A) It is environmentally friendly.Section C: 16-2516. D) To see if they are inherent traits affecting learning.17. A) It was defective.18. A) Auditory aids are as important as visual aids.19. D) Not spending enough time on family life and leisure.20. A) People would be working only fifteen hours a week now.21. C) Deterioration of workers’mental health.22. C) It has become something of a joke among Germans.23. B) The city had just been reunified.24. D) Problems of different kinds kept popping up.25. C) Huge maintenance costs accumulate.阅读（共3套）第一套：选词填空When considering risk factors associated with serious chronic diseases开头26-30 GJEAL 31-35 BOCDN26. G) detrimental27. J) indulging28. E) deficits29. A) assessed30. L) rapidly31. B) assigned32. O) similar33. C) consequences34. D) conspicuously35. N) regularly信息匹配Increased Screen Time and Wellbeing Decline in Youth36-45GCHDB EJFIA仔细阅读Passage One—The dangerous thing about lying开头46-50 ADBBB46. A) It shows they have the ability to view complex situations from different angles.47. D) It involves lots of sophisticated mental activity.48. B) When they face too much peer pressure.49. B) When they are under watchful eyes.50. B) They will tell bigger lies.Passage Two—Here is how....开头51-55 CADBC51. C) A massive natural catastrophe52. A) To prepare people for a major earthquake and tsunami53. D) Enormous stress is released54. B) Reducing casualties in the event of a disaster55. C) Its occurrence is just a matter of time第二套：The persistent开头26-35 KCNMD IHJOL26. K) prematurely27. C) determine28. N) synonymous29. M) switching30. D) generated31. I) particles32. H) opting33. J) peak34. O) trend35. L) simply信息匹配How much protein do you really want?36-45 CEAFM GBHDL仔细阅读Passage One—Last year开头（态度的重要性）46-50 CAADB46. C) It determines how we respond to our immediate environment.47. A) Their idols’behaviors.48. A) They may not suggest how a person is going to behave.49. D) They lack willpower.50. B) Starting to act in a way that embodies one’s aspirations.Passage Two——Industrial fishing for krill开头51-55 CBADC51. C) It was carried out too close to the habitats of penguins and whales52. B) To establish conservation areas in the Antarctic region.53. A) Opting to operate away from the suggested conservation areas.54. D) Sustain fishing without damaging the Antarctic ecosystem.55. C) A provider of the needed expertise.第三套：选词填空The number of开头26-30 ELHAJ31-35 BIDFK26. E) circumstances27. L) lonely28. H) consciousness29. A) alleviate30. J) excluded31. B) apparently32. I) desires33. D) associated34. F) competitive35. K) feature信息匹配Why More Farmers Are Switching to Grass-Fed Meat and Dairy36-45 FCJDG AIEBK仔细阅读Passage One—Schools are not just开头46-50 BBDCC46. B) Protect students from social pressures and enable them to face the world.47. B) They widen the gap between privileged and disadvantaged students.48. D) Activities involving all students on campus.49. A) They want their children to participate even though they don’t see much benefit.50. C) Avoiding creating new gaps among students.Passage Two—Rising temperatures and overfishing开头51-55 ACDAD51. A) King penguins in the Antarctic will be on the verge of dying out.52. C) Industrial fishing and climate change in the Antarctic region in recent years.53. D) The majority of them may have to find new breeding grounds in the future.54. A) Many baby king penguins can’t have food in time.55. D) Only a few of its islands can serve as huge breeding grounds for king penguins.翻译（共3套）第一套：The peony, with its rich colors and elegant images, symbolizes peace and prosperity and is known as the "king of flowers" in China. Peony is cultivated in many parts of China. For thousands of years, many poems and paintings have been created in praise of peonies. During the Tang Dynasty, peonies were widely planted in the imperial gardens and known as the national flower, so they were very popular. In the 10th century, the ancient city of Luoyang became a center for peony cultivation and remains so today. Now, tens of thousands of tourists from home and abroad flock to Luoyang for the annual peony festival to admire the unique beauty of the city's peonies and explore the history of the ancient capital of nine dynasties.第二套：Plum blossom, which originated in southern China, has been cultivated for more than 3,000 years, and tops the list of China’s Top 10 famous flowers. In the middle of winter, colorful plum blossoms facing the wind and snow proudly bloom. In traditional Chinese culture, plum blossom symbolizes strength, purity and elegance, inspiring people to overcome hardships and forge ahead. Since ancient times, many poets and painters have drawn inspiration from the plum blossom and createdcountless immortal works. The common people also love plum blossoms, which are often used as home decorations during the Spring Festival. The city of Nanjing has designated the plum blossom as the city flower. Every year, the Plum Blossom Festival is held，when tens of thousands of people brave the bitter cold to walk in the snow and appreciate the plum blossoms on Plum Blossom Mountain.第三套：Lotus is one of the best-known flowers in China which people love deeply. Many lakes and ponds in China are suitable for lotus’growth. Lotus features bright colors, blossoming in the morning and closing in the evening with a long flowering period of two to three months, attracting tourists across the country to appreciate it. Lotus has a variety of functions, which can not only green waters and beautify courtyards but also purify water, reduce pollution and improve environment. Lotus symbolizes purity and elegance and represents people's noble morals as it does not fear the strong sunshine and keeps clean in the mud. Therefore, the flower has become an important creation theme for poets and painters throughout the Chinese history, and the place where the lotus blooms is also frequented by many photography lovers.。
蓝鲸生活在海里的英语作文
蓝鲸生活在海里的英语作文The blue whale (Balaenoptera musculus) is the largest animal on Earth, and it lives exclusively in the ocean. These magnificent creatures are known for their size and gentle nature. Here is a short essay about blue whales and theirlife in the sea:Blue whales are the epitome of marine life, roaming the vast expanses of the world's oceans. They are not only the largest whales but also the largest animals that have ever existed. Reaching lengths of up to 100 feet and weighing as much as 200 tons, blue whales are a sight to behold.These gentle giants primarily feed on krill, tiny shrimp-like creatures that are abundant in the ocean. They are baleen whales, which means they have a specialized system of plates in their mouths that allow them to filter large amounts of water and capture krill. During the feeding season, a blue whale can consume up to 4 tons of krill in a single day.Blue whales are known for their incredible vocalizations, which can be heard for miles under the water. They use these sounds to communicate with each other, and scientists believe that they may also use them for navigation and to find food.Despite their massive size, blue whales are known to be quiteagile in the water. They are capable of diving to depths of more than 1,000 feet and can travel at speeds of up to 30 miles per hour. These whales are also known for their acrobatic displays, often breaching the water's surface and slapping the water with their tails or fins.The blue whale's habitat ranges from the polar regions to the tropics, depending on the season. They migrate thousands of miles between their feeding grounds in colder waters andtheir breeding grounds in warmer waters. This annual migration is a testament to their incredible endurance and navigational skills.Conservation efforts are crucial for the blue whale, as they were once hunted nearly to extinction. Thanks tointernational agreements and protections, their numbers have been slowly recovering. However, they still face threats from ship strikes, entanglement in fishing gear, and climate change.In conclusion, blue whales are a marvel of the natural world, and their existence is a reminder of the beauty and complexity of life in the ocean. As we continue to learn more about these creatures, it is our responsibility to protect and preserve their habitat for future generations to appreciate and study.。
大海是渔民的粮仓英语作文
大海是渔民的粮仓英语作文The Sea: The Fishermen's Pantry。
The sea, vast and ever-changing, has been a faithful provider for fishermen throughout history. Its depths teem with life, offering sustenance and livelihood to those who dare to venture upon its waves. The relationship between fishermen and the sea is a symbiotic one, rooted in tradition, respect, and reliance. In this essay, we delve into the profound connection between fishermen and the sea, exploring its significance, challenges, and enduring allure.First and foremost, the sea serves as a vital pantryfor fishermen, offering a bountiful array of marine life. From shimmering schools of fish to elusive crustaceans and mollusks, the sea is a treasure trove of edible delights. For generations, fishermen have cast their nets and lines into its depths, skillfully harvesting its gifts to feed their families and communities. Whether it be the humble sardine or the majestic tuna, each catch represents notonly sustenance but also a testament to the resilience and adaptability of those who make their living upon the waves.Moreover, the sea is a source of inspiration and reverence for fishermen, who view it not merely as a resource but as a sacred domain. Embarking upon their vessels, they navigate its vast expanse with a blend of awe and humility, mindful of its power and unpredictability. In the face of raging storms and tempestuous seas, fishermen demonstrate courage and fortitude, drawing upon generations of seafaring wisdom to navigate safely home. Theirs is a profession steeped in tradition and folklore, where tales of epic battles with sea monsters and miraculous hauls are passed down from one generation to the next, enriching the fabric of maritime culture.However, the relationship between fishermen and the sea is not without its challenges. In recent years, environmental degradation and overfishing have posed significant threats to marine ecosystems, jeopardizing the livelihoods of countless fishermen worldwide. Pollution, habitat destruction, and climate change have taken theirtoll on fish stocks, forcing fishermen to venture farther from shore in search of dwindling populations. Moreover, the industrialization of fishing practices has led tofierce competition and economic pressures, squeezing out small-scale fishermen who rely on traditional methods and local knowledge.Despite these challenges, fishermen remain resilient, adapting to changing circumstances while striving to preserve the integrity of the marine environment. Many have embraced sustainable fishing practices, advocating for responsible management and conservation measures to safeguard the future of their profession. Community-based initiatives and partnerships with scientists and policymakers have emerged, fostering collaboration and innovation in the pursuit of a more equitable and ecologically sound approach to fishing.In conclusion, the sea is indeed the pantry of fishermen, providing sustenance, inspiration, and livelihoods for countless individuals around the globe. Through centuries of toil and triumph, fishermen haveforged a deep and enduring bond with the sea, honoring its bounty while confronting its challenges with courage and resilience. As stewards of the oceans, they bear a sacred responsibility to safeguard its treasures for future generations, ensuring that the sea remains a source of abundance and wonder for all who depend upon it.This essay seeks to illuminate the profound connection between fishermen and the sea, celebrating the timeless traditions, challenges, and aspirations that unite them in their shared quest for sustenance and stewardship. As we contemplate the vastness of the ocean and the resilience of those who ply its waters, may we be inspired to cherish and protect this precious resource for generations to come.。
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© Chinese Society for Oceanography and Springer-Verlag GmbH Germany, part of Springer Nature 2019
Abstract A prevailing, controversial hypothesis is that fishing pressure has played a greater role than climatic and environmental drivers, in changing fish species succession and biomass fluctuation in the South China Sea (SCS). Based on otter trawl survey data from 1959 to 2010 in the outer Beibu Gulf (OBG), northern SCS, large seasonal and interannual variation is reported for fish species composition, the proportional abundances of dominant taxa, and fish biomass. Generalized additive models are developed to quantify relationships between fish biomass and the external factors of fishing pressure and climate change. Fishing pressure proved to be the main driver of sharp declines in demersal fish stocks, with high-value species being replaced by low-value ones over time. Abrupt decreases in fish biomass during the years of 1993 and 1998 correspond to El Niño events, with climate change possibly the main driver of proportional representation of pelagic species in fisheries trawl catch. The need to differentiate impacts of fishing and environmental drivers on fish species with different life history strategies is stressed to better understand fish community dynamics.
Key words: fish species succession, biomass fluctuation, fishing effect, c northern South China Sea
Citation: Wang Xuehui, Qiu Yongsong, Du Feiyan, Liu Weida, Sun Dianrong, Chen Xiao, Yuan Weiwen, Chen Yong. 2019. Roles of fishing and climate change in long-term fish species succession and population dynamics in the outer Beibu Gulf, South China Sea. Acta Oceanologica Sinica, 38(10): 1–8, doi: 10.1007/s13131-019-1484-5
Xuehui Wang1, 2, 3, 5*, Yongsong Qiu1, 2, Feiyan Du1, 3, Weida Liu1, Dianrong Sun1, 3, Xiao Chen4, 6, Weiwen Yuan1, Yong Chen5 1 South China Sea Fisheries Research Institute, Chinese Academy of Fishery Sciences, Guangzhou 510300, China 2 Key Laboratory of Open-Sea Fishery Development, Ministry of Agriculture and Rural Affair, Guangzhou 510300, China 3 Guangdong Provincial Key Laboratory of Fishery Ecology and Environment, Guangzhou 510300, China 4 College of Marine Sciences, South China Agricultural University, Guangzhou 510642, China 5 School of Marine Sciences, University of Maine, Orono, Maine 04469, USA 6 Guangxi Academy of Sciences, Guangxi Mangrove Research Center, Guangxi Key Lab of Mangrove Conservation and Utilization, Beihai 536000, China
Acta Oceanol. Sin., 2019, Vol. 38, No. 10, P. 1–8 https:///10.1007/s13131-019-1484-5 E-mail: hyxbe@
Roles of fishing and climate change in long-term fish species succession and population dynamics in the outer Beibu Gulf, South China Sea