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Production of phytodetritus by a coral reef sponge increases from shallow to mesophotic depths.

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Title: Production of phytodetritus by a coral reef sponge increases from shallow to mesophotic depths.
Authors: Lesser, Michael P.1 (AUTHOR) mpl@unh.edu, Macartney, Keir J.2 (AUTHOR), Slattery, Marc3 (AUTHOR)
Source: Limnology & Oceanography. Jun2023, Vol. 68 Issue 6, p1247-1255. 9p.
Subjects: Coral reefs & islands, Communities, Food chains, Detritus, Flow cytometry, Reefs
Geographic Terms: Grand Cayman Island (Cayman Islands)
Abstract: On Caribbean coral reefs, sponges are important members of the benthic community and have an important role in consuming particulate organic matter (POM) and dissolved organic matter (DOM), with the subsequent production of detritus that is then shunted into a process now referred to as the "sponge‐loop." An emergent species of sponge commonly found on Caribbean coral reefs, Agelas tubulata, increases in size and growth rate from shallow (< 30 m) to mesophotic depths (30–150 m) on Grand Cayman Island. A. tubulata depends largely on heterotrophy across shallow to mesophotic depths and has been shown to utilize detritus on shallow reefs. However, detritus production by A. tubulata on shallow and mesophotic coral reefs has not been previously reported. Here we show, using flow cytometry, that sponge detritus includes a previously unquantified component, phytodetritus. Sponge phytodetritus production was shown experimentally to be greater in sponges from mesophotic depths compared to sponges from shallow coral reefs. Additionally, the size range of this phytodetritus corresponds to the size range of autotrophic picoplankton, primarily prochlorophytes, known to be an important food source for filter‐feeding sponges. Given the known lability of phytodetritus, compared to other more recalcitrant components of the detrital pool, its role in the food web of mesophotic communities combined with the increased availability of live POM, may be an underappreciated component of mesophotic community carbon and nitrogen flow. [ABSTRACT FROM AUTHOR]
Copyright of Limnology & Oceanography is the property of Wiley-Blackwell 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.)
Database: Engineering Source
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DbLabel: Engineering Source
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  Data: Production of phytodetritus by a coral reef sponge increases from shallow to mesophotic depths.
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  Data: &lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Lesser%2C+Michael+P%2E%22&quot;&gt;Lesser, Michael P.&lt;/searchLink&gt;&lt;relatesTo&gt;1&lt;/relatesTo&gt; (AUTHOR)&lt;i&gt; mpl@unh.edu&lt;/i&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Macartney%2C+Keir+J%2E%22&quot;&gt;Macartney, Keir J.&lt;/searchLink&gt;&lt;relatesTo&gt;2&lt;/relatesTo&gt; (AUTHOR)&lt;br /&gt;&lt;searchLink fieldCode=&quot;AR&quot; term=&quot;%22Slattery%2C+Marc%22&quot;&gt;Slattery, Marc&lt;/searchLink&gt;&lt;relatesTo&gt;3&lt;/relatesTo&gt; (AUTHOR)
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  Data: &lt;searchLink fieldCode=&quot;JN&quot; term=&quot;%22Limnology+%26+Oceanography%22&quot;&gt;Limnology &amp; Oceanography&lt;/searchLink&gt;. Jun2023, Vol. 68 Issue 6, p1247-1255. 9p.
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Coral+reefs+%26+islands%22&quot;&gt;Coral reefs &amp; islands&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Communities%22&quot;&gt;Communities&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Food+chains%22&quot;&gt;Food chains&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Detritus%22&quot;&gt;Detritus&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Flow+cytometry%22&quot;&gt;Flow cytometry&lt;/searchLink&gt;&lt;br /&gt;&lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Reefs%22&quot;&gt;Reefs&lt;/searchLink&gt;
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  Data: &lt;searchLink fieldCode=&quot;DE&quot; term=&quot;%22Grand+Cayman+Island+%28Cayman+Islands%29%22&quot;&gt;Grand Cayman Island (Cayman Islands)&lt;/searchLink&gt;
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: On Caribbean coral reefs, sponges are important members of the benthic community and have an important role in consuming particulate organic matter (POM) and dissolved organic matter (DOM), with the subsequent production of detritus that is then shunted into a process now referred to as the &quot;sponge‐loop.&quot; An emergent species of sponge commonly found on Caribbean coral reefs, Agelas tubulata, increases in size and growth rate from shallow (&lt; 30 m) to mesophotic depths (30–150 m) on Grand Cayman Island. A. tubulata depends largely on heterotrophy across shallow to mesophotic depths and has been shown to utilize detritus on shallow reefs. However, detritus production by A. tubulata on shallow and mesophotic coral reefs has not been previously reported. Here we show, using flow cytometry, that sponge detritus includes a previously unquantified component, phytodetritus. Sponge phytodetritus production was shown experimentally to be greater in sponges from mesophotic depths compared to sponges from shallow coral reefs. Additionally, the size range of this phytodetritus corresponds to the size range of autotrophic picoplankton, primarily prochlorophytes, known to be an important food source for filter‐feeding sponges. Given the known lability of phytodetritus, compared to other more recalcitrant components of the detrital pool, its role in the food web of mesophotic communities combined with the increased availability of live POM, may be an underappreciated component of mesophotic community carbon and nitrogen flow. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
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  Data: &lt;i&gt;Copyright of Limnology &amp; Oceanography is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder&#39;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.&lt;/i&gt; (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/lno.12342
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 9
        StartPage: 1247
    Subjects:
      – SubjectFull: Coral reefs & islands
        Type: general
      – SubjectFull: Communities
        Type: general
      – SubjectFull: Food chains
        Type: general
      – SubjectFull: Detritus
        Type: general
      – SubjectFull: Flow cytometry
        Type: general
      – SubjectFull: Reefs
        Type: general
      – SubjectFull: Grand Cayman Island (Cayman Islands)
        Type: general
    Titles:
      – TitleFull: Production of phytodetritus by a coral reef sponge increases from shallow to mesophotic depths.
        Type: main
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      – PersonEntity:
          Name:
            NameFull: Lesser, Michael P.
      – PersonEntity:
          Name:
            NameFull: Macartney, Keir J.
      – PersonEntity:
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            NameFull: Slattery, Marc
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          Dates:
            – D: 01
              M: 06
              Text: Jun2023
              Type: published
              Y: 2023
          Identifiers:
            – Type: issn-print
              Value: 00243590
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            – Type: volume
              Value: 68
            – Type: issue
              Value: 6
          Titles:
            – TitleFull: Limnology & Oceanography
              Type: main
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