The Monterey Deep Basin Pollution Mystery

is monterey deep basin polluted

The Monterey Submarine Canyon is a submarine canyon in Monterey Bay, California, with walls that descend to a depth of one mile. It is the largest submarine canyon on the west coast of North America. The canyon is adjacent to a large extent of coastline, making it susceptible to pollution from urban, rural, and agricultural sources. Water pollution in the area is caused by boating and marina activities, as well as urban runoff, which carries contaminants such as pesticides, hydrocarbons, and heavy metals into the bay. Conservation efforts are focused on minimizing marine debris and ocean pollution, with organizations implementing programs to monitor and improve water quality.

Characteristics Values
Marine debris cigarette butts, food wrappers, plastic beverage bottles & caps, plastic bags, straws/stirrers, plastic takeout containers, polystyrene, derelict fishing gear
Water pollution contaminants (e.g. pesticides, hydrocarbons, heavy metals), excessive sedimentation, elevated nutrient loads, urban runoff, oil and chemical spills
Water temperature anomalously high sea surface temperatures (2-4°C higher than usual) in 2014-2015
Marine life impact ingestion of plastics, transport of contaminants, impact on foraging birds, marine mammals, fishes, and habitats like kelp beds, wetlands, and rocky shores
Conservation efforts proper waste disposal, use of biodegradable soaps, water conservation, composting, rainwater collection, education and management practices
Geographic features submarine canyon, steep canyon walls, depth of 2 miles, large sedimentary fan

shunwaste

Marine debris and boating activities

Marine debris is defined as any material that ends up in the marine environment, either directly or indirectly, intentionally or unintentionally. Common types of marine debris include plastic items such as beverage bottles, caps, plastic bags, straws, stirrers, and take-out containers, as well as cigarette butts, food wrappers, and derelict fishing gear. Marine debris can have detrimental effects on marine life, as animals may become entangled in or ingest these items. Studies have found plastic in the stomachs of seabirds and marine mammals, indicating the pervasive impact of plastic pollution in the basin.

Boating activities also contribute to the pollution of the Monterey Deep Basin. Boat-generated impacts on water quality can be categorized into four groups: toxic metals from anti-fouling paints, hydrocarbons from motor operations and maintenance, solid waste and marine debris from overboard disposal, and bacteria and nutrients from boat sewage. Oil and chemical spills associated with boating can have severe consequences for marine life and habitats such as kelp beds, wetlands, and rocky shores. Additionally, boat strikes pose a threat to marine mammals, with whales, smaller cetaceans, and pinnipeds vulnerable to injury or mortality from collisions with vessels.

The accumulation of marine debris in the deep-sea canyons of the Monterey Basin has been observed, with plastic and metal debris being relatively more abundant within the Monterey Canyon. This suggests that submarine canyons facilitate the transport of debris from coastal areas to deep-sea habitats. The persistence of plastic pollution is a significant concern, as plastics in the marine environment do not fully degrade, and their ability to attract and transport contaminants can further exacerbate their impact on the basin's ecosystems.

Overall, marine debris and boating activities have detrimental effects on the Monterey Deep Basin. The improper disposal of waste and the release of contaminants from boating activities contribute to water pollution and pose risks to the diverse marine life that the sanctuary strives to protect. Addressing these issues through responsible waste management, minimizing marine debris, and implementing measures to reduce the environmental impact of boating activities are crucial steps towards preserving the health and biodiversity of the Monterey Deep Basin.

shunwaste

Climate change and ocean conditions

Sea surface temperatures in Monterey Bay were 2-4°C higher than usual in 2014 and persisted into 2015. This shift in temperature, along with decreased upwelling and productivity, has likely affected the abundance and distribution of forage fish and invertebrates, resulting in mass strandings of emaciated birds and marine mammals. The period from 2009 to 2013 was also productive, but during a cool phase associated with strong upwelling and cooler sea surface temperatures. The oceanography of MBNMS is influenced by the California Current, which transports water of subarctic origin southward along the North American coast. Within 100 kilometers of the coast, the California Undercurrent moves in the opposite direction, carrying warmer, saltier water northward. Together, these currents create a dynamic system that supports a diverse range of marine life.

Climate change is causing shifts in species, altered weather patterns, and storms, all of which threaten the physical, social, economic, and environmental well-being of the region. Rising sea levels and coastal erosion pose risks to coastal structures and communities, with eight oceanfront facilities identified as being at high risk of erosion over the next 50 years. The Coastal Storm Modeling System (CoSMoS) is used to make detailed predictions of storm-induced coastal flooding, erosion, and cliff failures over large geographic scales, helping to prepare for and mitigate the impacts of climate change.

Water pollution from human activities, such as boating and marina operations, also impacts the sanctuary's resources. Boating activities introduce toxic metals, hydrocarbons, solid waste, marine debris, and sewage into the water. Large vessels transiting through the sanctuary can also negatively impact living resources, and oil and chemical spills can have major impacts on birds, marine life, and important habitats. While plastic debris has been shown to negatively impact living resources in the past, further studies are needed to determine the potential future impacts as plastic does not degrade over time.

shunwaste

Urban runoff and non-point pollution

The Monterey Bay National Marine Sanctuary (MBNMS) is susceptible to pollution from urban runoff and non-point sources. Urban runoff is a significant cause of water pollution and is challenging to prevent due to its diverse origins. This includes yards, sidewalks, streets, construction sites, and parking lots, where contaminants such as oil, grease, pesticides, herbicides, soil, and pet waste are deposited and subsequently washed into storm drains and local waterways by rainwater.

The atmospheric deposition, vehicular transportation activities, and metallic building envelopes are also major sources of non-point pollution. Atmospheric deposition refers to the deposition of pollutants from the atmosphere onto surfaces, which can then be washed into water bodies. Vehicular transportation activities, such as car washing, contribute to pollution when soaps containing chemical pollutants enter the environment through wastewater. To mitigate this, car washes should use biodegradable, phosphate-free soaps, and wash cars on permeable surfaces to prevent water pollution.

The Monterey Bay area faces a severe water shortage, prompting the implementation of rainwater collection systems. Rain barrels capture water from roofs, reducing the amount of water flowing off properties and withdrawing water from aquifers and wells. This helps maintain aquifer integrity and water reuse for irrigation or non-potable purposes. Proper waste disposal, including pet waste, solid waste, and boating waste, is crucial to minimising pollution in streams, rivers, and beaches. Composting food scraps is another effective method to reduce landfill waste and enhance soil health while preventing pollutants from entering waterways.

Additionally, the use of herbicides, insecticides, and pesticides should be minimised as they can pollute water sources through runoff and groundwater seepage. Boating activities within the sanctuary also impact water quality through the discharge of toxic metals from anti-fouling paints, hydrocarbons from motor operations, solid waste, marine debris, and sewage. Oil and chemical spills pose significant threats to wildlife and habitats such as kelp beds, wetlands, and rocky shores.

shunwaste

Industrial discharges and pesticides

The Monterey Bay National Marine Sanctuary (MBNMS) is a large marine sanctuary located in California, providing habitat for a diverse range of species. While the sanctuary is relatively protected from industrial discharges and large point sources of pollution, it is still vulnerable to pollution from non-point, urban, rural, and agricultural sources.

One significant source of pollution in the Monterey Bay area is industrial and urban runoff, which can carry a range of contaminants such as pesticides, hydrocarbons, heavy metals, oil, grease, herbicides, and soil into local waterways and, ultimately, the bay itself. This type of pollution is challenging to prevent due to its diffuse nature, with sources including yards, sidewalks, streets, construction sites, and parking lots.

Pesticides, in particular, pose a significant threat to the Monterey Bay ecosystem. They can enter the bay through runoff and groundwater seepage, accumulating in the fats of wildlife and leading to disease, reproductive issues, and even mortality at high concentrations. The use of pesticides and other chemicals in agriculture and urban areas can also impact the bay, as these substances can be carried by wind and water into the sanctuary.

To address these issues, the sanctuary has implemented a Water Quality Protection Program (WQPP) to educate the public about water quality issues and promote best practices for pollution prevention. The Central Coast Ambient Monitoring Program (CCAMP) and other monitoring initiatives are also in place to gather data and target source reduction efforts. Additionally, the sanctuary encourages the use of biodegradable, phosphate-free soaps and car washing on permeable surfaces to prevent water pollution.

Overall, while the Monterey Bay National Marine Sanctuary is relatively protected from industrial discharges, pesticides, and other forms of pollution remain a significant concern. The sanctuary's management and local organizations are actively working to address these issues through education, monitoring, and the promotion of sustainable practices.

Americans Pollute: The Ugly Truth

You may want to see also

shunwaste

Conservation efforts and public education

The Monterey Bay National Marine Sanctuary (MBNMS) is home to a diverse range of marine life and stunning coastal scenery. Conservation efforts in the area are vital to protect this unique ecosystem from the threats posed by human activities and pollution.

One of the key conservation challenges in Monterey Bay is the presence of marine debris and ocean pollution. Local organisations play a crucial role in addressing this issue through initiatives such as the "Marine Debris Action Plan", which aims to reduce and prevent marine debris through community engagement and education. Common types of marine debris include cigarette butts, plastic bottles, plastic bags, and derelict fishing gear. The public is encouraged to take personal responsibility for minimising marine debris by properly disposing of waste, securing loads in vehicles, and reporting litter.

Water pollution is another significant concern, with the sanctuary being susceptible to impacts from non-point, urban, rural, and agricultural pollution sources. To address this, the sanctuary implements various water quality monitoring programs, such as the Central Coast Ambient Monitoring Program (CCAMP) and the Sanctuary Citizen Watershed Monitoring Network. These programs gather data to identify source reduction strategies, assess trends, and determine the impacts of pollution on the ecosystem. The Water Quality Protection Program (WQPP) also plays a vital role in educating the public about water quality issues and promoting sustainable management practices.

The public's role in conservation efforts is crucial, and the sanctuary offers educational resources to raise awareness about the impacts of human activities on water quality. For instance, the "Monterey Bay National Marine Sanctuary Teachers Curriculum – The Land Sea Connection" helps students understand the connection between land-based activities and water pollution, emphasising the importance of proper waste disposal and the impact of pollutants on local waterways.

In addition to conservation efforts within the sanctuary, the surrounding community also plays a vital role in protecting Monterey Bay. The City of Monterey provides guidelines for residents and businesses to minimise their environmental impact. This includes proper waste disposal practices, such as composting food scraps to reduce landfill waste and promote soil health. The city also encourages the use of rainwater collection barrels to reduce water withdrawal from aquifers and wells, helping to maintain water quality and conserve water resources.

Frequently asked questions

The Monterey Submarine Canyon is a submarine canyon in Monterey Bay, California, with steep canyon walls measuring up to 1 mile (1.6 km) in height. While the canyon itself is not polluted, the Monterey Bay National Marine Sanctuary (MBNMS), which it borders, has been impacted by pollution. The sanctuary provides habitat for diverse biological life and is renowned for its spectacular coastal scenery.

Water pollution in Monterey Bay can be attributed to various sources, including urban runoff, boating activities, and agricultural pollution. Urban runoff carries contaminants such as oil, grease, pesticides, and pet waste into storm drains, leading to impaired water quality in the bay. Boating activities also contribute to water pollution through the disposal of toxic metals, hydrocarbons, solid waste, and boat sewage. Additionally, agricultural pollution, particularly the use of persistent pesticides, has been identified as a concern.

Pollution has had widespread effects on the Monterey Bay ecosystem. The ingestion of plastics and other debris by marine organisms has been documented, and the presence of contaminants such as pesticides, hydrocarbons, and heavy metals can impair water quality and harm marine life. High levels of coliform bacteria in coastal waters have also resulted in beach closures. Additionally, the accumulation of pollutants in the food web, including in marine mammal tissues, has been observed.

Several efforts are underway to address pollution in Monterey Bay. The sanctuary's Water Quality Protection Program (WQPP) aims to educate the public about water quality issues and implement better management practices. Various water quality monitoring programs, such as the Central Coast Ambient Monitoring Program (CCAMP) and the Sanctuary Citizen Watershed Monitoring Network, are also in place to gather data and target source reduction efforts. Additionally, the city of Monterey promotes sustainable practices, such as composting and rainwater collection, to reduce pollution and conserve water.

Written by
Reviewed by
Share this post
Print
Did this article help you?

Leave a comment