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Function and stability of mesophotic coral reefs.

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Title: Function and stability of mesophotic coral reefs.
Authors: Slattery, Marc1 (AUTHOR) slattery@olemiss.edu, Lesser, Michael P.2,3 (AUTHOR), Rocha, Luiz A.4 (AUTHOR), Spalding, Heather L.5 (AUTHOR), Smith, Tyler B.6 (AUTHOR)
Source: Trends in Ecology & Evolution. Jun2024, Vol. 39 Issue 6, p585-598. 14p.
Subjects: Corals, Coral reefs & islands, Dissolved organic matter, Coral reef restoration, Larval dispersal, Coral bleaching, Endemic species, Reefs
Abstract: Shallow coral reefs are being increasingly degraded as a result of natural and anthropogenic threats. Mesophotic coral ecosystems (MCEs) are an extension of shallow reefs at depths of ∼30–150 m that harbor depth generalists and specialists, acclimatized to changes in physical factors. A faunal break in MCEs occurs between upper (∼30–60 m) and lower (∼60–150 m) depths, representing transitional and endemic communities, respectively. The trophic ecology of MCEs shifts from autotrophic to heterotrophic processes with increasing depth, and trade-offs in the utilization of dissolved organic matter and particulate organic matter. While dispersal of MCE larvae could reseed degraded shallow reefs, genetic evidence is equivocal, suggesting site-specific connectivity patterns; anthropogenic disturbances at mesophotic depths indicate that MCEs may be as susceptible to stressors as shallow reefs are. The function and stability of mesophotic coral ecosystems (MCEs) have been extensively studied in recent years. These deep reefs are characterized by local physical processes, particularly the steep gradient in irradiance with increasing depth, and their impact on trophic resources. Mesophotic reefs exhibit distinct zonation patterns that segregate shallow reef biodiversity from ecologically unique deeper communities of endemic species. While mesophotic reefs are hypothesized as relatively stable refuges from anthropogenic stressors and a potential seed bank for degraded shallow reefs, these are site-specific features, if they occur at all. Mesophotic reefs are now known to be susceptible to many of the same stressors that are degrading shallow reefs, suggesting that they require their own specific conservation and management strategies. [ABSTRACT FROM AUTHOR]
Copyright of Trends in Ecology & Evolution is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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DbLabel: Engineering Source
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  Data: Function and stability of mesophotic coral reefs.
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  Data: <searchLink fieldCode="JN" term="%22Trends+in+Ecology+%26+Evolution%22">Trends in Ecology & Evolution</searchLink>. Jun2024, Vol. 39 Issue 6, p585-598. 14p.
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  Data: <searchLink fieldCode="DE" term="%22Corals%22">Corals</searchLink><br /><searchLink fieldCode="DE" term="%22Coral+reefs+%26+islands%22">Coral reefs & islands</searchLink><br /><searchLink fieldCode="DE" term="%22Dissolved+organic+matter%22">Dissolved organic matter</searchLink><br /><searchLink fieldCode="DE" term="%22Coral+reef+restoration%22">Coral reef restoration</searchLink><br /><searchLink fieldCode="DE" term="%22Larval+dispersal%22">Larval dispersal</searchLink><br /><searchLink fieldCode="DE" term="%22Coral+bleaching%22">Coral bleaching</searchLink><br /><searchLink fieldCode="DE" term="%22Endemic+species%22">Endemic species</searchLink><br /><searchLink fieldCode="DE" term="%22Reefs%22">Reefs</searchLink>
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  Label: Abstract
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  Data: Shallow coral reefs are being increasingly degraded as a result of natural and anthropogenic threats. Mesophotic coral ecosystems (MCEs) are an extension of shallow reefs at depths of ∼30–150 m that harbor depth generalists and specialists, acclimatized to changes in physical factors. A faunal break in MCEs occurs between upper (∼30–60 m) and lower (∼60–150 m) depths, representing transitional and endemic communities, respectively. The trophic ecology of MCEs shifts from autotrophic to heterotrophic processes with increasing depth, and trade-offs in the utilization of dissolved organic matter and particulate organic matter. While dispersal of MCE larvae could reseed degraded shallow reefs, genetic evidence is equivocal, suggesting site-specific connectivity patterns; anthropogenic disturbances at mesophotic depths indicate that MCEs may be as susceptible to stressors as shallow reefs are. The function and stability of mesophotic coral ecosystems (MCEs) have been extensively studied in recent years. These deep reefs are characterized by local physical processes, particularly the steep gradient in irradiance with increasing depth, and their impact on trophic resources. Mesophotic reefs exhibit distinct zonation patterns that segregate shallow reef biodiversity from ecologically unique deeper communities of endemic species. While mesophotic reefs are hypothesized as relatively stable refuges from anthropogenic stressors and a potential seed bank for degraded shallow reefs, these are site-specific features, if they occur at all. Mesophotic reefs are now known to be susceptible to many of the same stressors that are degrading shallow reefs, suggesting that they require their own specific conservation and management strategies. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of Trends in Ecology & Evolution is the property of Elsevier B.V. and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – Type: doi
        Value: 10.1016/j.tree.2024.01.011
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      – Code: eng
        Text: English
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      Pagination:
        PageCount: 14
        StartPage: 585
    Subjects:
      – SubjectFull: Corals
        Type: general
      – SubjectFull: Coral reefs & islands
        Type: general
      – SubjectFull: Dissolved organic matter
        Type: general
      – SubjectFull: Coral reef restoration
        Type: general
      – SubjectFull: Larval dispersal
        Type: general
      – SubjectFull: Coral bleaching
        Type: general
      – SubjectFull: Endemic species
        Type: general
      – SubjectFull: Reefs
        Type: general
    Titles:
      – TitleFull: Function and stability of mesophotic coral reefs.
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            NameFull: Lesser, Michael P.
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            NameFull: Rocha, Luiz A.
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            NameFull: Spalding, Heather L.
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            – D: 01
              M: 06
              Text: Jun2024
              Type: published
              Y: 2024
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              Value: 39
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