Epipsammic Diatom <I>Cocconesis</I> sp. as New Bioeroder in Scleractinian Coral

Highlight Research • The endolithic bioeroders were identified. • Cocconeis sp. was new for the science of euendolithic bioeroder of Scleractinian coral. • SEM revealed Cocconeis sp. etch and bore of coral skeleton. • Pennate diatom was present on coral cavities.   Abstract Laminar coral...

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Main Authors: Oktiyas Muzaky Luthfi, Adhimas Haryo Priyambodo, Muliawati Handayani, Yenny Risjani, Andrzej Witkowski
Format: Article
Language:English
Published: Faculty of Fisheries and Marine Universitas Airlangga 2023-01-01
Series:Jurnal Ilmiah Perikanan dan Kelautan
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Online Access:https://e-journal.unair.ac.id/JIPK/article/view/37653
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author Oktiyas Muzaky Luthfi
Adhimas Haryo Priyambodo
Muliawati Handayani
Yenny Risjani
Andrzej Witkowski
author_facet Oktiyas Muzaky Luthfi
Adhimas Haryo Priyambodo
Muliawati Handayani
Yenny Risjani
Andrzej Witkowski
author_sort Oktiyas Muzaky Luthfi
collection DOAJ
description Highlight Research • The endolithic bioeroders were identified. • Cocconeis sp. was new for the science of euendolithic bioeroder of Scleractinian coral. • SEM revealed Cocconeis sp. etch and bore of coral skeleton. • Pennate diatom was present on coral cavities.   Abstract Laminar coral, Montipora, contributes to the coral reef ecosystem. The laminar life form is usually used by juvenile reef biota to shelter and prey. In an intertidal area, such as Pantai Kondang Merak, these corals are susceptible to erosion caused by mechanical and biological forces. Strong current or other anthropogenic activity may break coral colonies into pieces. Also, some grazers from reef fish and bioeroder potentially weaken coral structures. This study aimed to find the effect of biological agents from Bacillariophyceae, such as Cocconeis diatom, on the bioerosion process in laminar coral, e.g., Montipora. Ten montiporid corals from Pantai Kondang Merak were observed to find bio-eroding activities. Each coral colony was divided into 12 parts and photographed to record signs of bio-erosion on coral surface. While observing microborers, a 2x2 cm of the coral surface was observed using Scanning Electron Microscopy (SEM). SEM revealed that a frustule of Cocconeis sp. was found inside aragonite laminar coral from Pantai Kondang Merak. Cocconeis naturally grows on the coasts of tropical oceans as benthic organisms. They are reported as living attached to many substrates' surfaces and within the substrate as euendolith. This study revealed that Cocconeis sp. lived inside the coral skeleton as micro bioeroder by attaching their valve in coral aragonite. Further work needs more observations of another potential euendolith diatom living inside the coral and to build new information on their mechanism of bio-eroding process in more detail.
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spelling doaj-art-4dc15da04a734e0abf523bb7e64e07952025-08-20T02:38:45ZengFaculty of Fisheries and Marine Universitas AirlanggaJurnal Ilmiah Perikanan dan Kelautan2085-58422528-07592023-01-0115116216910.20473/jipk.v15i1.3765335722Epipsammic Diatom <I>Cocconesis</I> sp. as New Bioeroder in Scleractinian CoralOktiyas Muzaky Luthfi0https://orcid.org/0000-0002-9550-9381Adhimas Haryo Priyambodo1Muliawati Handayani2https://orcid.org/0000-0002-7031-2478Yenny Risjani3https://orcid.org/0000-0002-6191-5824Andrzej Witkowski4https://orcid.org/0000-0003-1714-218XInstitute of Marine and Environmental Sciences, University of Szczecin, Szczecin. PolandFaculty of Fisheries and Marine Sciences, Universitas Brawijaya, Malang, 65145. IndonesiaFisheries Capture Study Program, Department Husbandry of Lampung State Polytechnic, Rajabasa Raya, Lampung, 35141. IndonesiaFaculty of Fisheries and Marine Sciences, Universitas Brawijaya, Malang, 65145. IndonesiaInstitute of Marine and Environmental Sciences, University of Szczecin, Szczecin. PolandHighlight Research • The endolithic bioeroders were identified. • Cocconeis sp. was new for the science of euendolithic bioeroder of Scleractinian coral. • SEM revealed Cocconeis sp. etch and bore of coral skeleton. • Pennate diatom was present on coral cavities.   Abstract Laminar coral, Montipora, contributes to the coral reef ecosystem. The laminar life form is usually used by juvenile reef biota to shelter and prey. In an intertidal area, such as Pantai Kondang Merak, these corals are susceptible to erosion caused by mechanical and biological forces. Strong current or other anthropogenic activity may break coral colonies into pieces. Also, some grazers from reef fish and bioeroder potentially weaken coral structures. This study aimed to find the effect of biological agents from Bacillariophyceae, such as Cocconeis diatom, on the bioerosion process in laminar coral, e.g., Montipora. Ten montiporid corals from Pantai Kondang Merak were observed to find bio-eroding activities. Each coral colony was divided into 12 parts and photographed to record signs of bio-erosion on coral surface. While observing microborers, a 2x2 cm of the coral surface was observed using Scanning Electron Microscopy (SEM). SEM revealed that a frustule of Cocconeis sp. was found inside aragonite laminar coral from Pantai Kondang Merak. Cocconeis naturally grows on the coasts of tropical oceans as benthic organisms. They are reported as living attached to many substrates' surfaces and within the substrate as euendolith. This study revealed that Cocconeis sp. lived inside the coral skeleton as micro bioeroder by attaching their valve in coral aragonite. Further work needs more observations of another potential euendolith diatom living inside the coral and to build new information on their mechanism of bio-eroding process in more detail.https://e-journal.unair.ac.id/JIPK/article/view/37653bioerosionmicroborercoral reefeuendolith diatompantai kondang merak
spellingShingle Oktiyas Muzaky Luthfi
Adhimas Haryo Priyambodo
Muliawati Handayani
Yenny Risjani
Andrzej Witkowski
Epipsammic Diatom <I>Cocconesis</I> sp. as New Bioeroder in Scleractinian Coral
Jurnal Ilmiah Perikanan dan Kelautan
bioerosion
microborer
coral reef
euendolith diatom
pantai kondang merak
title Epipsammic Diatom <I>Cocconesis</I> sp. as New Bioeroder in Scleractinian Coral
title_full Epipsammic Diatom <I>Cocconesis</I> sp. as New Bioeroder in Scleractinian Coral
title_fullStr Epipsammic Diatom <I>Cocconesis</I> sp. as New Bioeroder in Scleractinian Coral
title_full_unstemmed Epipsammic Diatom <I>Cocconesis</I> sp. as New Bioeroder in Scleractinian Coral
title_short Epipsammic Diatom <I>Cocconesis</I> sp. as New Bioeroder in Scleractinian Coral
title_sort epipsammic diatom i cocconesis i sp as new bioeroder in scleractinian coral
topic bioerosion
microborer
coral reef
euendolith diatom
pantai kondang merak
url https://e-journal.unair.ac.id/JIPK/article/view/37653
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AT muliawatihandayani epipsammicdiatomicocconesisispasnewbioeroderinscleractiniancoral
AT yennyrisjani epipsammicdiatomicocconesisispasnewbioeroderinscleractiniancoral
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