What affects tides in addition to the sun and the moon?

The relative distances and positions of the sun, moon and Earth all affect the size and magnitude of the Earth’s two tidal bulges. At a smaller scale, the magnitude of tides can be strongly influenced by the shape of the shoreline.

What are 10 biotic conditions that affect coral reefs?

What are biotic factors in a coral reef? Biotic factors of The Great Barrier Reef are the living components of the ecosystem, they include: coral, animals (such as sea turtles, crabs, sea urchins ,fish, sharks, eels, dolphins and seals), plants (like seaweed and plankton) and bacteria.

What are 4 challenges organisms face when living in the intertidal zone?

Because the intertidal zone is a transition zone between the land and the sea, organisms living in this zone are subject to stresses related to temperature, desiccation, oxygen depletion and reduced opportunities for feeding. At low tide, marine organisms face both heat stress and desiccation stress.

What are 4 ways high turbidity harms organisms?

Impact of Turbidity It can increase the cost of water treatment for drinking and food processing. It can harm fish and other aquatic life by reducing food supplies, degrading spawning beds, and affecting gill function.

What are 5 ways humans negatively impact our oceans?

What are 5 ways humans negatively impact our oceans? Human activities affect marine life and marine habitats through overfishing, habitat loss, the introduction of invasive species, ocean pollution, ocean acidification and ocean warming.

What are conditions like in the intertidal zone?

On the shore between high and low tide lies the intertidal zone, where land and sea meet. The intertidal zone is underwater during high tide and exposed to air during low tide. The animals and plants that live in this zone must cope with being submerged in water and exposed to the air during different times of day.

What are conditions like in the rocky intertidal zone?

What are the conditions like in the rock intertidal zone? Anything living in the intertidal zone must be able to survive changes in moisture, temperature, and salinity and withstand strong waves. Intertidal zones of rocky shorelines host sea stars, snails, seaweed, algae, and crabs.

What are factors that can affect the abundance and distribution of plankton in aquatic ecosystem?

The abundance of phytoplankton in aquatic can fluctuate in type and amount due to differences in nutrient content. Predation by zooplankton or herbivorous fish and tidal occurrence of sea water. Tides can affect plankton abundance and distribution. In high tide conditions.

What are harmful conditions in the ocean?

Global warming is causing sea levels to rise, threatening coastal population centers. Many pesticides and nutrients used in agriculture end up in the coastal waters, resulting in oxygen depletion that kills marine plants and shellfish. Factories and industrial plants discharge sewage and other runoff into the oceans.

What are marine environmental issues?

We depend on the sea, economically, social well-being, and for the quality of our lives, yet direct and indirect human activities have affected the marine environment, causing many problems such as overfishing and pollution at the local scale and ocean warming and acidification at the global one.

What are some extreme conditions found in the deep ocean?

But there are two extreme environments in the deep sea where life is more abundant. These are cold seeps and hydrothermal vents. In these environments, food chains do not begin with plants or algae that make food from sunlight. Cold seeps are areas where methane and hydrogen sulfide are released into the ocean.

What are some of the conditions to which rocky intertidal organisms must adapt?

Plants and animals here are adapted to the frequent changes in water chemistry, temperature and oxygen and pounding of waves on the rocks. Organisms must cling to the rocks or wash away on the tides. This adaption prevents some animals from becoming a meal to predators when they are exposed at low tide.

What are some of the environmental factors that cause the formation of rocky coasts?

Tides, currents, shelf slope, and geologic history all influence how coastline features are broken down or built up. More than any other factors, wave energy and coastal rock type influence the erosion processes that shape rocky coastlines.

What are some of the factors affecting zonation?

Some environmental influences that produce distinct gradients in the coastal zone include degree of exposure to air, salinity (of water, soil, and aerosols), temperature, light, oxygen availability, and the presence of various nutrients. Barrier structures provide a paradigm of zonation in the coastal zone.

What are some of the factors upstream that can affect the estuary?

For example, rising sea levels can inundate shallow coastal areas with seawater, disrupting the balance between fresh and salty water. Floods, storms, and other extreme weather events can change the amount of water flowing into an estuary from upstream, leading to more polluted runoff, erosion, and sedimentation.

What are some threats to rivers?

Multiple environmental stressors, such as agricultural runoff, pollution and invasive species, threaten rivers that serve 80 percent of the world’s population. These same stressors endanger the biodiversity of 65 percent of the world’s river habitats putting thousands of aquatic wildlife species at risk.

What are the 6 abiotic factors?

Examples. In biology, abiotic factors can include water, light, radiation, temperature, humidity, atmosphere, acidity, and soil.

What are the causes of environmental destruction in estuaries and intertidal zone?

The greatest threat to estuaries is, by far, their large-scale conversion by draining, filling, damming, or dredging. These activities result in the immediate destruction and loss of estuarine habitats.

What are the challenges that organisms face in the soft bottom intertidal zone?

Because the intertidal zone is a transition zone between the land and the sea, organisms living in this zone are subject to stresses related to temperature, desiccation, oxygen depletion and reduced opportunities for feeding. At low tide, marine organisms face both heat stress and desiccation stress.

What are the characteristics of rocky shore ecosystem?

Rocky intertidal areas are a biologically rich environment that can include several distinct habitat types like steep rocky cliffs, platforms, rock pools and boulder fields. Because of the permanent action of tides and waves, it is characterized by erosional features.

What are the different factors that threaten the intertidal zone and how all living organism were affected?

Discarded trash, oil spills and toxic chemical runoffs negatively impact tidal marine life. These are high in pesticides, fertilisers and herbicides and often go through the intertidal zone first and are at their highest concentration before they enter the ocean.

What are the disadvantages of living in the intertidal zone?

The disadvantages of being a littoral zone organism include predation by mobile animals such as birds, mammals and fish. Being exposed to the air for too long can harm some organisms. Animals such as mussels and barnacles are able to keep some seawater in their shells to withstand such exposure.

What are the dominant abiotic stresses affecting life at a rocky shore?

Life on rocky shores is tough. It is dominated by the need to deal with very high wave energy, regular exposure to the air/sun, and interactions between these two physical stressors and the strong biological pressure applied by voracious intertidal predators.

What are the effects of tides?

High tides push large amounts of water far up onto beaches and leave the sand and sediment mixed with the water behind when the tide goes out. Therefore, tides transport sand and sediment and shape shorelines. Tides feed estuaries.

What are the environmental factors that affect the growth and distribution of plankton?

Salinity and nutrients in the water were the main environmental factors that affected the distribution of the zooplankton species.