Oyster Restoration Project Key Concepts

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Questions and Answers

What is the native oyster species found in both the Atlantic and Mediterranean regions?

  • Ostrea edulis (correct)
  • Magallana gigas
  • Crepidula fornicata
  • None of the above

Oysters are protandrous hermaphrodites, meaning they start as females and then become males.

False (B)

What is the primary food source for oysters?

Algae and detritus

How much seawater can a single oyster filter in an hour?

<p>16 pints</p> Signup and view all the answers

What are the benefits provided by oysters to marine environments called?

<p>Ecosystem services</p> Signup and view all the answers

Which of the following is not an ecosystem service provided by oysters?

<p>Oxygen production (A)</p> Signup and view all the answers

Oysters can only survive in salt water.

<p>False (B)</p> Signup and view all the answers

Which invasive species is known to impact native oyster populations?

<p>Both A &amp; B (C)</p> Signup and view all the answers

What is the name of the initiative aimed at restoring native oyster ecosystems in the Solent?

<p>Solent Seascape Restoration Project</p> Signup and view all the answers

What is the process of new oyster larvae settling in habitats called?

<p>Larval recruitment</p> Signup and view all the answers

Which method is used to detect Bonamia infections in oysters?

<p>Both A &amp; B (C)</p> Signup and view all the answers

What does 'seabed density' refer to when discussing oyster populations?

<p>The measurement of oyster population per area of seabed</p> Signup and view all the answers

A skewed sex ratio in oyster populations indicates a balance between male and female individuals.

<p>False (B)</p> Signup and view all the answers

What is the name for the stages of development from oyster larva to adult?

<p>Oyster life cycle</p> Signup and view all the answers

What is the term used to describe the management of nutrient-rich waters to prevent algal blooms?

<p>Eutrophic control</p> Signup and view all the answers

What are settlement plates used for in oyster restoration ?

<p>Enhancing larval oyster settlement</p> Signup and view all the answers

Gel electrophoresis is a technique used to separate proteins for infection analysis.

<p>False (B)</p> Signup and view all the answers

To which group of parasites does Bonamia ostreae belong?

<p>Haplosporidian protists</p> Signup and view all the answers

What is the term for the death rate of oysters due to various factors?

<p>Oyster mortality</p> Signup and view all the answers

Benthic substrate refers to the top layer of the water column in aquatic environments.

<p>False (B)</p> Signup and view all the answers

What are hydrodynamic models used for in relation to oysters?

<p>Studying water flow impacts on oysters</p> Signup and view all the answers

What does 'oyster production' refer to?

<p>Cultivation and harvesting of oysters for consumption</p> Signup and view all the answers

What is the term for groups of oysters in a specific habitat?

<p>Oyster populations</p> Signup and view all the answers

What are environmental parameters that affect oyster growth and survival?

<p>Factors affecting oyster growth and survival</p> Signup and view all the answers

What is 'active management' in the context of oyster restoration?

<p>Interventions to restore and maintain oyster populations</p> Signup and view all the answers

Oysters were native to the Solent but were wiped out by over-exploitation due to food consumption.

<p>True (A)</p> Signup and view all the answers

The Solent Seascape Restoration Project is focused on using genetic material from other regions to create a new hybrid oyster species to help restore the Solent.

<p>False (B)</p> Signup and view all the answers

What is a broodstock cage and how does it help restore oyster populations?

<p>Broodstock cages are structures used for breeding and protecting oyster populations. They are like mini-oyster farms. This allows for controlled breeding and a safe environment for new oysters to grow.</p> Signup and view all the answers

Why is it important to know about the oyster life cycle for restoration projects?

<p>Understanding the different stages of the oyster's life cycle is crucial for effective restoration projects.</p> Signup and view all the answers

Invasive species only affect oyster populations, not other marine organisms.

<p>False (B)</p> Signup and view all the answers

Active management is used to ensure the long-term survival of oysters and other sea life.

<p>True (A)</p> Signup and view all the answers

Gel electrophoresis is a technique used to separate DNA for infection analysis, which can be used to study the spread of disease in oyster populations.

<p>True (A)</p> Signup and view all the answers

Oysters filter water, which helps to improve water quality and remove pollutants.

<p>True (A)</p> Signup and view all the answers

What is the main reason oysters are crucial for the overall health of marine ecosystems?

<p>Oysters play a vital role in maintaining the health of marine ecosystems through various ecosystem services.</p> Signup and view all the answers

Flashcards

Ostrea edulis

Native oyster species in Atlantic and Mediterranean.

Protandrous hermaphrodites

Oysters start as males, then become females.

Filter feeders

Oysters consume algae and detritus from water.

16 pints/hour

Oysters filter this volume of seawater per hour.

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Ecosystem services

Benefits provided by oysters to marine environments.

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Water filtration

Oysters improve water quality by filtering pollutants.

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Habitat stabilization

Oysters stabilize marshes and soft sediment areas.

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N & P cycling

Oysters help cycle nitrogen and phosphorus in ecosystems.

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Carbon sequestration

Oysters capture carbon, aiding climate regulation.

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Refugia function

Oysters provide refuge from predators for species.

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Over-exploitation

Excessive harvesting leading to population declines.

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Bonamia ostreae

Parasite causing disease in Ostrea edulis.

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Disease prevalence

Frequency of disease occurrence in oyster populations.

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Invasive species

Non-native species disrupting local ecosystems.

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Crepidula fornicata

Invasive species impacting native oyster populations.

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Magallana gigas

Invasive oyster species, originally from the Pacific.

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Solent Seascape Restoration Project

Initiative to restore native oyster ecosystems in Solent.

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Broodstock cages

Structures for breeding and protecting oyster populations.

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Larval recruitment

Process of new oyster larvae settling in habitats.

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Histology

Microscopic examination to diagnose Bonamia infection.

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PCR diagnostic tests

Molecular method to detect pathogens in oysters.

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Seabed density

Measurement of oyster population per area of seabed.

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Skewed sex ratio

Imbalance in male to female oyster populations.

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Oyster life cycle

Stages of development from larva to adult oyster.

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Eutrophic control

Management of nutrient-rich waters to prevent algal blooms.

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Settlement plates

Tools used to enhance larval oyster settlement.

Signup and view all the flashcards

Gel electrophoresis

Technique to separate DNA for infection analysis.

Signup and view all the flashcards

Haplosporidian protist

Group of parasites including Bonamia ostreae.

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Oyster mortality

Death rate of oysters due to various factors.

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Benthic substrate

Bottom surface of aquatic environments for oyster growth.

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Hydrodynamic models

Simulations to study water flow impacts on oysters.

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Oyster production

Cultivation and harvesting of oysters for consumption.

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Oyster populations

Groups of oysters in a specific habitat.

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Environmental parameters

Factors affecting oyster growth and survival.

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Active management

Interventions to restore and maintain oyster populations.

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Study Notes

Oyster Restoration Project Key Concepts

  • Ostrea edulis: Native oyster species in the Atlantic and Mediterranean.
  • Protandrous hermaphrodites: Oysters begin as males, then become females.
  • Filter feeders: Oysters consume algae and detritus from seawater.
  • Water filtration (16 pints/hour): Oysters filter a significant volume of water, improving water quality.
  • Ecosystem services: Benefits provided by oysters to marine environments.
  • Habitat stabilization: Oysters stabilize marshes and soft sediment areas.
  • N & P cycling: Oysters help cycle nitrogen and phosphorus in ecosystems.
  • Carbon sequestration: Oysters capture carbon, aiding climate regulation.
  • Refugia function: Oysters offer refuge from predators for other species.
  • Over-exploitation: Excessive harvesting leading to population decline.
  • Bonamia ostreae: A parasite causing disease in Ostrea edulis oysters.
  • Disease prevalence: Frequency of disease occurrence in oyster populations.
  • Invasive species (Crepidula fornicata, Magallana gigas): Non-native species potentially displacing native oysters.
  • Solent Seascape Restoration Project: An initiative to restore native oyster ecosystems in the Solent.
  • Broodstock cages: Structures supporting oyster breeding and protection.
  • Larval recruitment: The process of new oyster larvae settling in habitats.
  • Histology, PCR diagnostic tests: Methods for diagnosing disease and identifying pathogens.
  • Seabed density: Measurement of oyster population per area.
  • Skewed sex ratio: Imbalance in male/female oyster populations.
  • Oyster life cycle: Stages of development from larva to adult.
  • Eutrophic control: Management of nutrient-rich waters to prevent algal blooms.
  • Settlement plates: Tools to enhance oyster larval settlement.
  • Gel electrophoresis: Technique separating DNA for disease analysis.
  • Haplosporidian protist: A group of parasites including Bonamia ostreae.
  • Oyster mortality: Death rate of oysters due to various factors.
  • Benthic substrate: Bottom environment for oyster growth.
  • Hydrodynamic models: Simulations of water flow impact on oysters.
  • Oyster production: Cultivation and harvesting for consumption.
  • Oyster populations: Groups of oysters in a specific habitat.
  • Environmental parameters: Factors influencing oyster growth and survival.
  • Active management: Interventions to restore and maintain oyster populations.

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