New Insights into a Mediterranean Sea Benthic Habitat: High Diversity of Epiphytic Bryozoan Assemblages on <i<Phyllophora crispa</i< (Rhodophyta) Mats
With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been d...
Ausführliche Beschreibung
Autor*in: |
Felix Ivo Rossbach [verfasserIn] Edoardo Casoli [verfasserIn] Julia Plewka [verfasserIn] Neele Schmidt [verfasserIn] Christian Wild [verfasserIn] |
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E-Artikel |
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Englisch |
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2022 |
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Übergeordnetes Werk: |
In: Diversity - MDPI AG, 2009, 14(2022), 5, p 346 |
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Übergeordnetes Werk: |
volume:14 ; year:2022 ; number:5, p 346 |
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DOI / URN: |
10.3390/d14050346 |
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Katalog-ID: |
DOAJ087165600 |
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520 | |a With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been described to be associated with a high diversity of sessile invertebrates in the Tyrrhenian Sea. One of the key taxa among these sessile invertebrates are bryozoans: their abundance, diversity, and spatial distribution in <i<P. crispa</i< mats represent a gap in scientific knowledge. Thus, we conducted a pilot study on bryozoan assemblages associated with <i<P. crispa</i< mats around Giglio Island (Tuscan Archipelago, Italy) in 2018, followed by a comparative study on four sites distributed around the island in the subsequent year, 2019. We compared these findings to bryozoan abundance and diversity on <i<P. oceanica</i< shoots and leaves during the second expedition. The findings revealed more than 46 families, with a significantly higher number of taxa identified in <i<P. crispa</i< mats (33) than in <i<P. oceanica</i< meadows (29). The Shannon diversity index was similar between <i<P. crispa</i< and <i<P. oceanica</i< shoots, while Pielou’s evenness index was lower in <i<P. crispa</i< mats. The most abundant families reported across all habitats were Crisiidae, Aetidae, and Lichenoporidae; but the most abundant family on <i<P. crispa</i< was Chlidoniidae (<i<Chlidonia pyriformis</i<). The assemblages associated with <i<P. crispa</i< differed among sites, with higher abundances but lower diversity on the exposed southernmost site. The total bryozoan abundance was significantly higher on <i<P. crispa</i< (average 2.83 × 10<sup<6</sup< ± 1.99 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor) compared to <i<P. oceanica</i< meadows (average 0.54 × 10<sup<6</sup< ± 0.34 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor). Our results show a high diversity of bryozoans on <i<P. crispa</i< thalli compared to <i<P. oceanica</i< meadows, which was consistent throughout the study. These findings confirm the value of the red alga-generated habitat for associated bryozoans and may have implications for future biodiversity assessments and conservation measures. | ||
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10.3390/d14050346 doi (DE-627)DOAJ087165600 (DE-599)DOAJ55de611f37ad449fac1033e598139fe6 DE-627 ger DE-627 rakwb eng QH301-705.5 Felix Ivo Rossbach verfasserin aut New Insights into a Mediterranean Sea Benthic Habitat: High Diversity of Epiphytic Bryozoan Assemblages on <i<Phyllophora crispa</i< (Rhodophyta) Mats 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been described to be associated with a high diversity of sessile invertebrates in the Tyrrhenian Sea. One of the key taxa among these sessile invertebrates are bryozoans: their abundance, diversity, and spatial distribution in <i<P. crispa</i< mats represent a gap in scientific knowledge. Thus, we conducted a pilot study on bryozoan assemblages associated with <i<P. crispa</i< mats around Giglio Island (Tuscan Archipelago, Italy) in 2018, followed by a comparative study on four sites distributed around the island in the subsequent year, 2019. We compared these findings to bryozoan abundance and diversity on <i<P. oceanica</i< shoots and leaves during the second expedition. The findings revealed more than 46 families, with a significantly higher number of taxa identified in <i<P. crispa</i< mats (33) than in <i<P. oceanica</i< meadows (29). The Shannon diversity index was similar between <i<P. crispa</i< and <i<P. oceanica</i< shoots, while Pielou’s evenness index was lower in <i<P. crispa</i< mats. The most abundant families reported across all habitats were Crisiidae, Aetidae, and Lichenoporidae; but the most abundant family on <i<P. crispa</i< was Chlidoniidae (<i<Chlidonia pyriformis</i<). The assemblages associated with <i<P. crispa</i< differed among sites, with higher abundances but lower diversity on the exposed southernmost site. The total bryozoan abundance was significantly higher on <i<P. crispa</i< (average 2.83 × 10<sup<6</sup< ± 1.99 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor) compared to <i<P. oceanica</i< meadows (average 0.54 × 10<sup<6</sup< ± 0.34 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor). Our results show a high diversity of bryozoans on <i<P. crispa</i< thalli compared to <i<P. oceanica</i< meadows, which was consistent throughout the study. These findings confirm the value of the red alga-generated habitat for associated bryozoans and may have implications for future biodiversity assessments and conservation measures. phytal habitat epiphytic communities engineering species sessile invertebrates Biology (General) Edoardo Casoli verfasserin aut Julia Plewka verfasserin aut Neele Schmidt verfasserin aut Christian Wild verfasserin aut In Diversity MDPI AG, 2009 14(2022), 5, p 346 (DE-627)610602756 (DE-600)2518137-3 14242818 nnns volume:14 year:2022 number:5, p 346 https://doi.org/10.3390/d14050346 kostenfrei https://doaj.org/article/55de611f37ad449fac1033e598139fe6 kostenfrei https://www.mdpi.com/1424-2818/14/5/346 kostenfrei https://doaj.org/toc/1424-2818 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2022 5, p 346 |
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10.3390/d14050346 doi (DE-627)DOAJ087165600 (DE-599)DOAJ55de611f37ad449fac1033e598139fe6 DE-627 ger DE-627 rakwb eng QH301-705.5 Felix Ivo Rossbach verfasserin aut New Insights into a Mediterranean Sea Benthic Habitat: High Diversity of Epiphytic Bryozoan Assemblages on <i<Phyllophora crispa</i< (Rhodophyta) Mats 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been described to be associated with a high diversity of sessile invertebrates in the Tyrrhenian Sea. One of the key taxa among these sessile invertebrates are bryozoans: their abundance, diversity, and spatial distribution in <i<P. crispa</i< mats represent a gap in scientific knowledge. Thus, we conducted a pilot study on bryozoan assemblages associated with <i<P. crispa</i< mats around Giglio Island (Tuscan Archipelago, Italy) in 2018, followed by a comparative study on four sites distributed around the island in the subsequent year, 2019. We compared these findings to bryozoan abundance and diversity on <i<P. oceanica</i< shoots and leaves during the second expedition. The findings revealed more than 46 families, with a significantly higher number of taxa identified in <i<P. crispa</i< mats (33) than in <i<P. oceanica</i< meadows (29). The Shannon diversity index was similar between <i<P. crispa</i< and <i<P. oceanica</i< shoots, while Pielou’s evenness index was lower in <i<P. crispa</i< mats. The most abundant families reported across all habitats were Crisiidae, Aetidae, and Lichenoporidae; but the most abundant family on <i<P. crispa</i< was Chlidoniidae (<i<Chlidonia pyriformis</i<). The assemblages associated with <i<P. crispa</i< differed among sites, with higher abundances but lower diversity on the exposed southernmost site. The total bryozoan abundance was significantly higher on <i<P. crispa</i< (average 2.83 × 10<sup<6</sup< ± 1.99 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor) compared to <i<P. oceanica</i< meadows (average 0.54 × 10<sup<6</sup< ± 0.34 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor). Our results show a high diversity of bryozoans on <i<P. crispa</i< thalli compared to <i<P. oceanica</i< meadows, which was consistent throughout the study. These findings confirm the value of the red alga-generated habitat for associated bryozoans and may have implications for future biodiversity assessments and conservation measures. phytal habitat epiphytic communities engineering species sessile invertebrates Biology (General) Edoardo Casoli verfasserin aut Julia Plewka verfasserin aut Neele Schmidt verfasserin aut Christian Wild verfasserin aut In Diversity MDPI AG, 2009 14(2022), 5, p 346 (DE-627)610602756 (DE-600)2518137-3 14242818 nnns volume:14 year:2022 number:5, p 346 https://doi.org/10.3390/d14050346 kostenfrei https://doaj.org/article/55de611f37ad449fac1033e598139fe6 kostenfrei https://www.mdpi.com/1424-2818/14/5/346 kostenfrei https://doaj.org/toc/1424-2818 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2022 5, p 346 |
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10.3390/d14050346 doi (DE-627)DOAJ087165600 (DE-599)DOAJ55de611f37ad449fac1033e598139fe6 DE-627 ger DE-627 rakwb eng QH301-705.5 Felix Ivo Rossbach verfasserin aut New Insights into a Mediterranean Sea Benthic Habitat: High Diversity of Epiphytic Bryozoan Assemblages on <i<Phyllophora crispa</i< (Rhodophyta) Mats 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been described to be associated with a high diversity of sessile invertebrates in the Tyrrhenian Sea. One of the key taxa among these sessile invertebrates are bryozoans: their abundance, diversity, and spatial distribution in <i<P. crispa</i< mats represent a gap in scientific knowledge. Thus, we conducted a pilot study on bryozoan assemblages associated with <i<P. crispa</i< mats around Giglio Island (Tuscan Archipelago, Italy) in 2018, followed by a comparative study on four sites distributed around the island in the subsequent year, 2019. We compared these findings to bryozoan abundance and diversity on <i<P. oceanica</i< shoots and leaves during the second expedition. The findings revealed more than 46 families, with a significantly higher number of taxa identified in <i<P. crispa</i< mats (33) than in <i<P. oceanica</i< meadows (29). The Shannon diversity index was similar between <i<P. crispa</i< and <i<P. oceanica</i< shoots, while Pielou’s evenness index was lower in <i<P. crispa</i< mats. The most abundant families reported across all habitats were Crisiidae, Aetidae, and Lichenoporidae; but the most abundant family on <i<P. crispa</i< was Chlidoniidae (<i<Chlidonia pyriformis</i<). The assemblages associated with <i<P. crispa</i< differed among sites, with higher abundances but lower diversity on the exposed southernmost site. The total bryozoan abundance was significantly higher on <i<P. crispa</i< (average 2.83 × 10<sup<6</sup< ± 1.99 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor) compared to <i<P. oceanica</i< meadows (average 0.54 × 10<sup<6</sup< ± 0.34 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor). Our results show a high diversity of bryozoans on <i<P. crispa</i< thalli compared to <i<P. oceanica</i< meadows, which was consistent throughout the study. These findings confirm the value of the red alga-generated habitat for associated bryozoans and may have implications for future biodiversity assessments and conservation measures. phytal habitat epiphytic communities engineering species sessile invertebrates Biology (General) Edoardo Casoli verfasserin aut Julia Plewka verfasserin aut Neele Schmidt verfasserin aut Christian Wild verfasserin aut In Diversity MDPI AG, 2009 14(2022), 5, p 346 (DE-627)610602756 (DE-600)2518137-3 14242818 nnns volume:14 year:2022 number:5, p 346 https://doi.org/10.3390/d14050346 kostenfrei https://doaj.org/article/55de611f37ad449fac1033e598139fe6 kostenfrei https://www.mdpi.com/1424-2818/14/5/346 kostenfrei https://doaj.org/toc/1424-2818 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2022 5, p 346 |
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10.3390/d14050346 doi (DE-627)DOAJ087165600 (DE-599)DOAJ55de611f37ad449fac1033e598139fe6 DE-627 ger DE-627 rakwb eng QH301-705.5 Felix Ivo Rossbach verfasserin aut New Insights into a Mediterranean Sea Benthic Habitat: High Diversity of Epiphytic Bryozoan Assemblages on <i<Phyllophora crispa</i< (Rhodophyta) Mats 2022 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been described to be associated with a high diversity of sessile invertebrates in the Tyrrhenian Sea. One of the key taxa among these sessile invertebrates are bryozoans: their abundance, diversity, and spatial distribution in <i<P. crispa</i< mats represent a gap in scientific knowledge. Thus, we conducted a pilot study on bryozoan assemblages associated with <i<P. crispa</i< mats around Giglio Island (Tuscan Archipelago, Italy) in 2018, followed by a comparative study on four sites distributed around the island in the subsequent year, 2019. We compared these findings to bryozoan abundance and diversity on <i<P. oceanica</i< shoots and leaves during the second expedition. The findings revealed more than 46 families, with a significantly higher number of taxa identified in <i<P. crispa</i< mats (33) than in <i<P. oceanica</i< meadows (29). The Shannon diversity index was similar between <i<P. crispa</i< and <i<P. oceanica</i< shoots, while Pielou’s evenness index was lower in <i<P. crispa</i< mats. The most abundant families reported across all habitats were Crisiidae, Aetidae, and Lichenoporidae; but the most abundant family on <i<P. crispa</i< was Chlidoniidae (<i<Chlidonia pyriformis</i<). The assemblages associated with <i<P. crispa</i< differed among sites, with higher abundances but lower diversity on the exposed southernmost site. The total bryozoan abundance was significantly higher on <i<P. crispa</i< (average 2.83 × 10<sup<6</sup< ± 1.99 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor) compared to <i<P. oceanica</i< meadows (average 0.54 × 10<sup<6</sup< ± 0.34 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor). Our results show a high diversity of bryozoans on <i<P. crispa</i< thalli compared to <i<P. oceanica</i< meadows, which was consistent throughout the study. These findings confirm the value of the red alga-generated habitat for associated bryozoans and may have implications for future biodiversity assessments and conservation measures. phytal habitat epiphytic communities engineering species sessile invertebrates Biology (General) Edoardo Casoli verfasserin aut Julia Plewka verfasserin aut Neele Schmidt verfasserin aut Christian Wild verfasserin aut In Diversity MDPI AG, 2009 14(2022), 5, p 346 (DE-627)610602756 (DE-600)2518137-3 14242818 nnns volume:14 year:2022 number:5, p 346 https://doi.org/10.3390/d14050346 kostenfrei https://doaj.org/article/55de611f37ad449fac1033e598139fe6 kostenfrei https://www.mdpi.com/1424-2818/14/5/346 kostenfrei https://doaj.org/toc/1424-2818 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_74 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_170 GBV_ILN_206 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_602 GBV_ILN_2005 GBV_ILN_2009 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2055 GBV_ILN_2111 GBV_ILN_4012 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4700 AR 14 2022 5, p 346 |
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new insights into a mediterranean sea benthic habitat: high diversity of epiphytic bryozoan assemblages on <i<phyllophora crispa</i< (rhodophyta) mats |
callnumber |
QH301-705.5 |
title_auth |
New Insights into a Mediterranean Sea Benthic Habitat: High Diversity of Epiphytic Bryozoan Assemblages on <i<Phyllophora crispa</i< (Rhodophyta) Mats |
abstract |
With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been described to be associated with a high diversity of sessile invertebrates in the Tyrrhenian Sea. One of the key taxa among these sessile invertebrates are bryozoans: their abundance, diversity, and spatial distribution in <i<P. crispa</i< mats represent a gap in scientific knowledge. Thus, we conducted a pilot study on bryozoan assemblages associated with <i<P. crispa</i< mats around Giglio Island (Tuscan Archipelago, Italy) in 2018, followed by a comparative study on four sites distributed around the island in the subsequent year, 2019. We compared these findings to bryozoan abundance and diversity on <i<P. oceanica</i< shoots and leaves during the second expedition. The findings revealed more than 46 families, with a significantly higher number of taxa identified in <i<P. crispa</i< mats (33) than in <i<P. oceanica</i< meadows (29). The Shannon diversity index was similar between <i<P. crispa</i< and <i<P. oceanica</i< shoots, while Pielou’s evenness index was lower in <i<P. crispa</i< mats. The most abundant families reported across all habitats were Crisiidae, Aetidae, and Lichenoporidae; but the most abundant family on <i<P. crispa</i< was Chlidoniidae (<i<Chlidonia pyriformis</i<). The assemblages associated with <i<P. crispa</i< differed among sites, with higher abundances but lower diversity on the exposed southernmost site. The total bryozoan abundance was significantly higher on <i<P. crispa</i< (average 2.83 × 10<sup<6</sup< ± 1.99 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor) compared to <i<P. oceanica</i< meadows (average 0.54 × 10<sup<6</sup< ± 0.34 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor). Our results show a high diversity of bryozoans on <i<P. crispa</i< thalli compared to <i<P. oceanica</i< meadows, which was consistent throughout the study. These findings confirm the value of the red alga-generated habitat for associated bryozoans and may have implications for future biodiversity assessments and conservation measures. |
abstractGer |
With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been described to be associated with a high diversity of sessile invertebrates in the Tyrrhenian Sea. One of the key taxa among these sessile invertebrates are bryozoans: their abundance, diversity, and spatial distribution in <i<P. crispa</i< mats represent a gap in scientific knowledge. Thus, we conducted a pilot study on bryozoan assemblages associated with <i<P. crispa</i< mats around Giglio Island (Tuscan Archipelago, Italy) in 2018, followed by a comparative study on four sites distributed around the island in the subsequent year, 2019. We compared these findings to bryozoan abundance and diversity on <i<P. oceanica</i< shoots and leaves during the second expedition. The findings revealed more than 46 families, with a significantly higher number of taxa identified in <i<P. crispa</i< mats (33) than in <i<P. oceanica</i< meadows (29). The Shannon diversity index was similar between <i<P. crispa</i< and <i<P. oceanica</i< shoots, while Pielou’s evenness index was lower in <i<P. crispa</i< mats. The most abundant families reported across all habitats were Crisiidae, Aetidae, and Lichenoporidae; but the most abundant family on <i<P. crispa</i< was Chlidoniidae (<i<Chlidonia pyriformis</i<). The assemblages associated with <i<P. crispa</i< differed among sites, with higher abundances but lower diversity on the exposed southernmost site. The total bryozoan abundance was significantly higher on <i<P. crispa</i< (average 2.83 × 10<sup<6</sup< ± 1.99 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor) compared to <i<P. oceanica</i< meadows (average 0.54 × 10<sup<6</sup< ± 0.34 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor). Our results show a high diversity of bryozoans on <i<P. crispa</i< thalli compared to <i<P. oceanica</i< meadows, which was consistent throughout the study. These findings confirm the value of the red alga-generated habitat for associated bryozoans and may have implications for future biodiversity assessments and conservation measures. |
abstract_unstemmed |
With its geographically isolated location and geological history, the Mediterranean Sea harbors well-known biodiversity hotspots, such as <i<Posidonia oceanica</i< seagrass meadows. Recently, long-living mats formed by the fleshy red alga <i<Phyllophora crispa</i< have been described to be associated with a high diversity of sessile invertebrates in the Tyrrhenian Sea. One of the key taxa among these sessile invertebrates are bryozoans: their abundance, diversity, and spatial distribution in <i<P. crispa</i< mats represent a gap in scientific knowledge. Thus, we conducted a pilot study on bryozoan assemblages associated with <i<P. crispa</i< mats around Giglio Island (Tuscan Archipelago, Italy) in 2018, followed by a comparative study on four sites distributed around the island in the subsequent year, 2019. We compared these findings to bryozoan abundance and diversity on <i<P. oceanica</i< shoots and leaves during the second expedition. The findings revealed more than 46 families, with a significantly higher number of taxa identified in <i<P. crispa</i< mats (33) than in <i<P. oceanica</i< meadows (29). The Shannon diversity index was similar between <i<P. crispa</i< and <i<P. oceanica</i< shoots, while Pielou’s evenness index was lower in <i<P. crispa</i< mats. The most abundant families reported across all habitats were Crisiidae, Aetidae, and Lichenoporidae; but the most abundant family on <i<P. crispa</i< was Chlidoniidae (<i<Chlidonia pyriformis</i<). The assemblages associated with <i<P. crispa</i< differed among sites, with higher abundances but lower diversity on the exposed southernmost site. The total bryozoan abundance was significantly higher on <i<P. crispa</i< (average 2.83 × 10<sup<6</sup< ± 1.99 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor) compared to <i<P. oceanica</i< meadows (average 0.54 × 10<sup<6</sup< ± 0.34 × 10<sup<6</sup< colonies per m<sup<2</sup< seafloor). Our results show a high diversity of bryozoans on <i<P. crispa</i< thalli compared to <i<P. oceanica</i< meadows, which was consistent throughout the study. These findings confirm the value of the red alga-generated habitat for associated bryozoans and may have implications for future biodiversity assessments and conservation measures. |
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container_issue |
5, p 346 |
title_short |
New Insights into a Mediterranean Sea Benthic Habitat: High Diversity of Epiphytic Bryozoan Assemblages on <i<Phyllophora crispa</i< (Rhodophyta) Mats |
url |
https://doi.org/10.3390/d14050346 https://doaj.org/article/55de611f37ad449fac1033e598139fe6 https://www.mdpi.com/1424-2818/14/5/346 https://doaj.org/toc/1424-2818 |
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Edoardo Casoli Julia Plewka Neele Schmidt Christian Wild |
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up_date |
2024-07-04T00:33:00.711Z |
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