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Jirapatrasilp P, Cuny G, Kocsis L, Sutcharit C, Ngamnisai N, Charoentitirat T, Kumpitak S, Suraprasit K. Mid-Holocene marine faunas from the Bangkok Clay deposits in Nakhon Nayok, the Central Plain of Thailand. Zookeys 2024; 1202:1-110. [PMID: 38800563 PMCID: PMC11112167 DOI: 10.3897/zookeys.1202.119389] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2024] [Accepted: 03/24/2024] [Indexed: 05/29/2024] Open
Abstract
Based on several field investigations, many molluscan shells and chondrichthyan teeth, together with other invertebrate and actinopterygian remains were found from the marine Bangkok Clay deposits in Ongkharak, Nakhon Nayok, at a depth of ~ 5-7 m below the topsoil surface. Animal macrofossils recovered from these Holocene marine deposits were identified and their chronological context was investigated in order to reconstruct the paleoenvironments of the area at that time. The majority of marine fossils recovered from the site consist of molluscs, with a total of 63 species identified. Other invertebrate species include a stony coral, a mud lobster, barnacles, and a sea urchin. The vertebrates are represented by fish remains, including carcharhinid shark teeth from at least nine species, stingray and trichiurid teeth, and one sciaenid otolith. The molluscan fauna indicates that the paleoenvironments of the area corresponded to intertidal to sublittoral zones, where some areas were mangrove forests and intertidal mudflats. The fish fauna is dominated by the river shark Glyphis, indicating freshwater influences and possibly occasional brackish conditions. The carbon-14 analysis of mollusc and charcoal remains shows that deposition of the marine sediment sequence began during the mid-Holocene, spanning approximately from 8,800 to 5,300 cal yr BP. This study provides in-depth insights into the diversity of fishes, marine molluscs, and other invertebrates from the Bangkok Clay deposits, supporting the existence of a marine transgression onto the Lower Central Plain of Thailand during the mid-Holocene.
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Affiliation(s)
- Parin Jirapatrasilp
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
- Leibniz-Institut zur Analyse des Biodiversitätswandels - Standort Hamburg, Martin-Luther-King-Platz 3, Hamburg 20146, Germany
| | - Gilles Cuny
- Université Claude Bernard Lyon 1, LEHNA UMR 5023, CNRS, ENTPE, F-69622, Villeurbanne, France
| | - László Kocsis
- Institute of Earth Surface Dynamics, University of Lausanne, Rue de la Mouline, 1015 Lausanne, Switzerland
| | - Chirasak Sutcharit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Nom Ngamnisai
- Department of Geography, Faculty of Social Sciences, Srinakharinwirot University, Bangkok 10110, Thailand
| | - Thasinee Charoentitirat
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Satapat Kumpitak
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
| | - Kantapon Suraprasit
- Animal Systematics Research Unit, Department of Biology, Faculty of Science, Chulalongkorn University, Bangkok 10330, Thailand
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Trivedi JN, Doshi M, Patel KJ, Chan BKK. Diversity of intertidal, epibiotic, and fouling barnacles (Cirripedia, Thoracica) from Gujarat, northwest India. Zookeys 2021; 1026:143-178. [PMID: 33850420 PMCID: PMC8018942 DOI: 10.3897/zookeys.1026.60733] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2020] [Accepted: 01/04/2021] [Indexed: 11/12/2022] Open
Abstract
The present work studied the diversity of intertidal, epibiotic, and fouling barnacles in the state of Gujarat, northwest India. In total, eleven species belonging to eight genera and five families were recorded in the present study. The Arabian intertidal species Tetraclitaehsani Shahdadi, Chan & Sari, 2011 and Chthamalusbarnesi Achituv & Safriel, 1980 are common in the high- and mid-intertidal rocky shores of Gujarat suggesting that the Gujarat barnacle assemblages are similar to the assemblages in the Gulf of Oman Ecoregion. The biogeographical boundary between the Gulf of Oman and Western Indian ecoregions for barnacles should probably extend southward towards the waters adjacent to Mumbai, where Indo-Pacific species of intertidal barnacles dominate. This study provides the first reports of the common widely distributed balanomorph barnacles Striatobalanustenuis (Hoek, 1883), Tetraclitellakarandei Ross, 1971, Amphibalanusreticulatus (Utinomi, 1967), and lepadid barnacle Lepasanatifera Linnaeus, 1758 in Gujarat, as well as of the chthamalid barnacle Chthamalusbarnesi in India.
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Affiliation(s)
- Jigneshkumar N Trivedi
- Department of Life Sciences, Hemchandracharya North Gujarat University, Patan-384265, Gujarat, India Hemchandracharya North Gujarat University Gujarat India
| | - Mahima Doshi
- Department of Life Sciences, Hemchandracharya North Gujarat University, Patan-384265, Gujarat, India Hemchandracharya North Gujarat University Gujarat India
| | - Krupal J Patel
- Marine Biodiversity and Ecology Laboratory, Department of Zoology, The Maharaja Sayajirao University of Baroda, Vadodara-390002, Gujarat, India The Maharaja Sayajirao University of Baroda Gujarat India
| | - Benny K K Chan
- Biodiversity Research Center, Academia Sinica, Taipei 115, Taiwan Biodiversity Research Center, Academia Sinica Taipei Taiwan
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Pitriana P, Jones DS, Corbari L, von Rintelen K. New insights gained from museum collections: Deep-sea barnacles (Crustacea, Cirripedia, Thoracica) in the Muséum National d’Histoire Naturelle, Paris, collected during the Karubar expedition in 1991. ZOOSYST EVOL 2020. [DOI: 10.3897/zse.96.55733] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
An examination of the deep-sea barnacles (Cirripedia, Thoracica) collected by the Karubar expedition to Indonesia (1991) and deposited in the Muséum National d’Histoire Naturelle, Paris, identified 40 species contained in three families of stalked and five families of acorn barnacles. Information on these species is presented, including descriptions, updated distributions and images to aid species identification. Thirty of the species, treated herein, are new records for the Indonesian Kei Islands and Tanimbar Island, which increases the total number of species recorded from Kei Islands, Aru Island and Tanimbar Island to 40. This study demonstrates the value of museum collections as a resource in biodiversity science.
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Pitriana P, Valente L, von Rintelen T, Jones DS, Prabowo RE, von Rintelen K. An annotated checklist and integrative biodiversity discovery of barnacles (Crustacea, Cirripedia) from the Moluccas, East Indonesia. Zookeys 2020; 945:17-83. [PMID: 32714005 PMCID: PMC7351798 DOI: 10.3897/zookeys.945.39044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 04/07/2020] [Indexed: 01/12/2023] Open
Abstract
To contribute to the taxonomic knowledge of barnacles in this understudied area, the first checklist of barnacles from the Moluccas is presented, including additional information on morphology, distribution, and substrate as well as molecular data. The species of barnacles from the Moluccas have been determined using morphological analysis and DNA sequences. During 19 field trips conducted between January 2016 and September 2017, 1,513 specimens of 24 species of intertidal and one species of deep-sea barnacles were collected from 51 localities from the islands. Morphological and molecular analysis of the collected material detected members of three families of stalked barnacles and four families of acorn barnacles. In addition to sampling in the field, we also surveyed the literature on barnacles from the Moluccas. In total, our checklist comprises 97 species from the Moluccas including 23 new records, two of them yet to be described species. Results suggest that the Moluccas have a much higher diversity of barnacles than previously known, for example, from the reports of Challenger and Siboga expeditions. For further work, routine application of molecular systematics could aid the detection of cryptic species, while increased sampling of more islands and a taxonomic revision of several groups would likely lead to an even higher number of species than currently known.
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Affiliation(s)
- Pipit Pitriana
- Museum für Naturkunde- Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany Leibniz Institute for Evolution and Biodiversity Science Berlin Germany.,Research Centre for Deep-sea, Indonesian Institute of Science (LIPI), Jl. Y. Syaranamual, Poka, Tlk. Ambon, Kota Ambon, Maluku, Indonesia esearch Centre for Deep-sea, Indonesian Institute of Science Kota Ambon Indonesia.,Institute of Geological Sciences, Freie Universität Berlin, Malteserstrasse 74-100 Building C and D, 12249 Berlin, Germany Universitas Jenderal Soedirman Purwokerto Indonesia
| | - Luis Valente
- Museum für Naturkunde- Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany Leibniz Institute for Evolution and Biodiversity Science Berlin Germany.,Naturalis Biodiversity Center, Understanding Evolution Group, Postbus 9517, 2300 RA Leiden, the Netherlands Freie Universität Berlin Berlin Germany
| | - Thomas von Rintelen
- Museum für Naturkunde- Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany Leibniz Institute for Evolution and Biodiversity Science Berlin Germany
| | - Diana S Jones
- The Western Australian Museum, 49 Kew Street, Welshpool WA 6106, Locked Bag 49, Welshpool DC WA 6986, Australia Naturalis Biodiversity Center Leiden Netherlands
| | - Romanus E Prabowo
- Faculty of Biology, Universitas Jenderal Soedirman, Purwokerto, 53122, Indonesia The Western Australian Museum Welshpool Australia
| | - Kristina von Rintelen
- Museum für Naturkunde- Leibniz Institute for Evolution and Biodiversity Science, Invalidenstrasse 43, 10115 Berlin, Germany Leibniz Institute for Evolution and Biodiversity Science Berlin Germany
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Chan BK, Tsao YF, Ganmanee M. Morphological and molecular evidence support the intertidal barnacle Octomeris intermedia Nilsson-Cantell, 1921 (Thoracica, Chthamalidae) as a valid species in Indo-Pacific waters. Zookeys 2020; 914:1-31. [PMID: 32132853 PMCID: PMC7046729 DOI: 10.3897/zookeys.914.49328] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2019] [Accepted: 01/13/2020] [Indexed: 11/16/2022] Open
Abstract
Octomeris is a chthamalid intertidal barnacle with eight shell plates. There are currently two species of such barnacles: O. brunnea Darwin, 1854 (type locality in the Philippines), common in the Indo-Pacific region, and O. angulosa Sowerby, 1825, only recorded in South Africa. Octomeris intermedia Nilsson-Cantell, 1921, identified from the Mergui Archipelago in Myanmar, was considered to be conspecific with O. brunnea by Hiro (1939) based on samples collected in Taiwan. The morphological differences in shell and opercular plates between O. brunnea and O. intermedia are believed to be intra-specific variations due to different degrees of shell erosion. In the present study, the genetic and morphological differentiations of Octomeris in the Indo-Pacific region were examined. This study found two molecular clades (with inter-specific differences) based on the divergence in the COI genes, and the species also have distinct geographical distributions. The Octomeris brunnea clade covers samples collected from the Philippines and Taiwan waters and the other clade, which we argue is O. intermedia, is distributed in Phuket and Krabi, Thailand and Langkawi, Malaysia. Phuket and Krabi are located approximately 300 km south of the Mergui Archipelago, the type locality of O. intermedia. The morphology of samples collected from Thailand fits the type description of O. intermedia in Nilsson-Cantell (1921). Our study concludes that O. intermedia is a valid species based on morphological and molecular evidence.
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Affiliation(s)
- Benny K.K. Chan
- Biodiversity Research Center, Academia Sinica, Taipei 115, TaiwanBiodiversity Research Center, Academia SinicaTaipeiTaiwan
| | - Yao Feng Tsao
- Biodiversity Research Center, Academia Sinica, Taipei 115, TaiwanBiodiversity Research Center, Academia SinicaTaipeiTaiwan
| | - Monthon Ganmanee
- Faculty of Agricultural Technology, King Mongkut's Institute of Technology Ladkrabang, Chalongkrung Road, Ladkrabang, Bangkok 10520, ThailandKing Mongkut's Institute of TechnologyBangkokThailand
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Martin MV, Venkatesan R, Beyline M, Limna Mol VP, Divya L. Influence of environmental factors on macrofoulant assemblages on moored buoys in the eastern Arabian Sea. PLoS One 2020; 15:e0223560. [PMID: 31999725 PMCID: PMC6992173 DOI: 10.1371/journal.pone.0223560] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2019] [Accepted: 09/23/2019] [Indexed: 11/18/2022] Open
Abstract
Factors governing the distribution of organisms in the pelagic ocean are understudied. In this paper we describe environmental parameters and macrofouling assemblages on 11 buoys deployed in the Arabian Sea for an average duration of 322 days. Macrofoulants on all the mooring components extending from the sea-surface to a depth of 1800–4300 m were documented. Role of temperature, salinity, dissolved oxygen, biological productivity and zooplankton community in governing the macrofoulant distribution are described. Species composition, vertical zonation and wet biomass exhibited significant spatial variations. Lepas anatifera constituted more than 90% of foulant wet biomass on all moorings. Assemblages in the southeastern (SEAS), east-central (ECAS) and northeast (NEAS) regions were distinct. Density of L. anatifera on surface buoys were low in SEAS (0.2±0.09 no./cm2), high in ECAS (0.32±0.11 no./cm2) and moderate in NEAS (0.23±0.04no./cm2). Macrofoulants were observed up to a depth of 75 m in SEAS, 130 m in ECAS and 120 m in NEAS. The depth profile of macrofoulant assemblages on moorings could be related to the prevalent hypoxic condition. Vertical profiles of wet biomass on all moorings exhibited subsurface maxima at depth ranging from 10 to 20 m, consequent to the abundance of L. anatifera in a thermally stable depth of water column, wherein diurnal and semidiurnal temperature variability was minimal. We attribute the observed variation in fouling assemblages to dissolved oxygen levels, salinity and diurnal variability in temperature and salinity.
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Affiliation(s)
- M. V. Martin
- Ocean Observation Systems, National Institute of Ocean Technology, Chennai, Tamil Nadu, India
- * E-mail: (RV); (MVM); (MB)
| | - Ramasamy Venkatesan
- Ocean Observation Systems, National Institute of Ocean Technology, Chennai, Tamil Nadu, India
- * E-mail: (RV); (MVM); (MB)
| | - M. Beyline
- Department of Zoology, Central University of Kerala, Kasaragod, Kerala, India
- * E-mail: (RV); (MVM); (MB)
| | - V. P. Limna Mol
- School of Ocean Science and Technology, Kerala University of Fisheries and Ocean Studies, Kerala, India
| | - L. Divya
- Department of Zoology, Central University of Kerala, Kasaragod, Kerala, India
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Sukparangsi W, Pochai A, Wongkunanusorn C, Salinee Khachonpisitsak. Discovery of Neonrosellavitiata (Darwin) and Newmanellaspinosus Chan & Cheang (Balanomorpha, Tetraclitidae) from the Andaman Sea, eastern Indian Ocean. Zookeys 2019; 833:1-20. [PMID: 31015773 PMCID: PMC6443622 DOI: 10.3897/zookeys.833.30689] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Accepted: 03/01/2019] [Indexed: 12/04/2022] Open
Abstract
In this present study, distantly related acorn barnacle species in the subfamily Newmanellinae (Cirripedia, Thoracica, Tetraclitidae), including Neonrosellavitiata (Darwin, 1854) and Newmanellaspinosus Chan & Cheang, 2016, were discovered in the Andaman Sea of Thailand. Neo.vitiata can be readily distinguished from other newmanellids by shell plate and operculum morphology (external shell, tergum geometry, and pattern of parietal tube) and arthropodal characters (presence of basi-dorsal point at base of penis and triangular spines on cirri, setal type, and mouth parts). Both species were found to share overlapping territories on rocks at the rockweed zone, an area submerged under seawater most of the time throughout the year. This study highlights the first discovery of Neonrosella in the eastern Indian Ocean, whose ultrastructure compared to Newmanella is redescribed and illustrated here based on scanning electron microscopy.
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Affiliation(s)
- Woranop Sukparangsi
- Department of Biology, Faculty of Science, Burapha University, 169 Long-Hard Bangsaen Road, Saen Suk, Mueang, Chon Buri, 20131 Thailand
| | - Ashitapol Pochai
- Takuapa Senanukul School, 15 Phet Kasem Road, Bang Nai Si, Takua Pa, Phang-Nga, 82110 Thailand
| | - Chinnakit Wongkunanusorn
- Biology Program, Department of Biology, Faculty of Science, Burapha University, 169 Long-Hard Bangsaen Road, Saen Suk, Mueang, Chon Buri, 20131 Thailand
| | - Salinee Khachonpisitsak
- Department of Biology, Faculty of Science, Burapha University, 169 Long-Hard Bangsaen Road, Saen Suk, Mueang, Chon Buri, 20131 Thailand
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Rocha M, Antas P, Castro LFC, Campos A, Vasconcelos V, Pereira F, Cunha I. Comparative Analysis of the Adhesive Proteins of the Adult Stalked Goose Barnacle Pollicipes pollicipes (Cirripedia: Pedunculata). MARINE BIOTECHNOLOGY (NEW YORK, N.Y.) 2019; 21:38-51. [PMID: 30413912 DOI: 10.1007/s10126-018-9856-y] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/29/2018] [Accepted: 10/14/2018] [Indexed: 06/08/2023]
Abstract
Adhesion in barnacles is still poorly understood. The cement gland secretes an insoluble multi-protein complex, which adheres very strongly to a variety of substrates in the presence of water. This adhesion mechanism is bioinspiring for the engineering of new adhesive materials, but to replicate this adhesive system, the genes coding for the cement constitutive proteins must be identified and elucidated, and their products characterised. Here, the complete sequences of three cement protein (CP) genes (CP-100K, CP-52K, and CP-19K) isolated from the cement gland of the stalked barnacle Pollicipes pollicipes (order Scalpelliformes) were obtained using RACE PCR. The three genes were compared to the 23 other acorn barnacle CP genes so far sequenced (order Sessilia) to determine common and differential patterns and molecular properties, since the adhesives of both orders have visibly different characteristics. A shotgun proteomic analysis was performed on the cement, excreted at the membranous base of specimens, where the products of the three genes sequenced in the gland were identified, validating their function as CPs. A principal component analysis (PCA) was performed, to cluster CPs into groups with similar amino acid composition. This analysis uncovered three CP groups, each characterised by similar residue composition, features in secondary structure, and some biochemical properties, including isoelectric point and residue accessibility to solvents. The similarity among proteins in each defined group was low despite comparable amino acid composition. PCA can identify putative adhesive proteins from NGS transcriptomic data regardless of their low homology. This analysis did not highlight significant differences in residue composition between homologous acorn and stalked barnacle CPs. The characteristics responsible for the structural differences between the cement of stalked and acorn barnacles are described, and the presence of nanostructures, such as repetitive homologous domains and low complexity regions, and repetitive β-sheets are discussed relatively to self-assembly and adhesion.
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Affiliation(s)
- Miguel Rocha
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
- FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Paulo Antas
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - L Filipe C Castro
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
- FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Alexandre Campos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
| | - Vítor Vasconcelos
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal
- FCUP - Department of Biology, Faculty of Sciences, University of Porto, Rua do Campo Alegre, 4169-007, Porto, Portugal
| | - Filipe Pereira
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal.
| | - Isabel Cunha
- CIIMAR/CIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Terminal de Cruzeiros do Porto de Leixões, Av. General Norton de Matos, s/n, 4450-208, Matosinhos, Portugal.
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Wang C, Schultzhaus JN, Taitt CR, Leary DH, Shriver-Lake LC, Snellings D, Sturiale S, North SH, Orihuela B, Rittschof D, Wahl KJ, Spillmann CM. Characterization of longitudinal canal tissue in the acorn barnacle Amphibalanus amphitrite. PLoS One 2018; 13:e0208352. [PMID: 30532169 PMCID: PMC6287898 DOI: 10.1371/journal.pone.0208352] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2018] [Accepted: 11/15/2018] [Indexed: 01/21/2023] Open
Abstract
The morphology and composition of tissue located within parietal shell canals of the barnacle Amphibalanus amphitrite are described. Longitudinal canal tissue nearly spans the length of side shell plates, terminating near the leading edge of the specimen basis in proximity to female reproductive tissue located throughout the peripheral sub-mantle region, i.e. mantle parenchyma. Microscopic examination of stained longitudinal canal sections reveal the presence of cell nuclei as well as an abundance of micron-sized spheroids staining positive for basic residues and lipids. Spheroids with the same staining profile are present extensively in ovarioles, particularly within oocytes which are readily identifiable at various developmental stages. Mass spectrometry analysis of longitudinal canal tissue compared to tissue collected from the mantle parenchyma reveals a nearly 50% overlap of the protein profile with the greatest number of sequence matches to vitellogenin, a glycolipoprotein playing a key role in vitellogenesis–yolk formation in developing oocytes. The morphological similarity and proximity to female reproductive tissue, combined with mass spectrometry of the two tissues, provides compelling evidence that one of several possible functions of longitudinal canal tissue is supporting the female reproductive system of A. amphitrite, thus expanding the understanding of the growth and development of this sessile marine organism.
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Affiliation(s)
- Chenyue Wang
- National Research Council Research Associateship Program, Washington, D.C., United States of America
| | - Janna N. Schultzhaus
- National Research Council Research Associateship Program, Washington, D.C., United States of America
| | - Chris R. Taitt
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
| | - Dagmar H. Leary
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
| | - Lisa C. Shriver-Lake
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
| | - Daniel Snellings
- Naval Research Enterprise Internship Program, Washington, D.C., United States of America
| | - Samantha Sturiale
- Naval Research Enterprise Internship Program, Washington, D.C., United States of America
| | - Stella H. North
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
| | - Beatriz Orihuela
- Duke University Marine Laboratory, Beaufort, N.C., United States of America
| | - Daniel Rittschof
- Duke University Marine Laboratory, Beaufort, N.C., United States of America
| | - Kathryn J. Wahl
- Chemistry Division, Naval Research Laboratory, Washington, D.C., United States of America
| | - Christopher M. Spillmann
- Center for Bio/Molecular Science and Engineering, Naval Research Laboratory, Washington, D.C., United States of America
- * E-mail:
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