Challenge 09: Skills, knowledge, and technology for all
Permanent URI for this collectionhttps://repository.unesco.gov.ph/handle/123456789/26
Ocean Decade
Challenge 09:
Skills, knowledge, and technology for all
Ensure comprehensive capacity development and equitable access to data, information, knowledge and technology across all aspects of ocean science and for all stakeholders.
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- Spatial planning insights for Philippine coral reef conservation using larval connectivity networksPata, Patrick R.; Yñiguez, Aletta T. (Frontiers Media SA, 2021-10-06)The marine habitats of the Philippines are recognized to be some of the most biodiverse systems globally yet only 1.7% of its seas are designated as marine protected areas (MPAs) with varying levels of implementation. Many of these MPAs were established based on local-scale conservation and fisheries objectives without considering larger-scale ecological connections. The connectivity of reefs through larval dispersal is important in the regional-scale resilience against anthropogenic disturbances and is considered a significant criterion in planning for MPAs. In this study, we provide insights into the delineation of ecologically connected MPA networks using larval dispersal modeling and network analysis. We characterized the network properties of the Philippine coral reefs, organized as 252 reef nodes, based on the larval connectivity networks of a branching coral, sea urchin, and grouper. We then evaluated the distribution of the existing 1,060 MPAs relative to the connectivity patterns. All reef nodes were found to be highly interconnected with a mean shortest path ranging from 1.96 to 4.06. Reef nodes were then ranked according to their relative importance in regional connectivity based on five connectivity indices. Despite the between-organism and between-index variability in rankings, there were reefs nodes, mostly located offshore and at major straits, which consistently ranked high. We found that the distribution of existing MPAs partially capture some of the regional connectivity functions but there is a spatial mismatch between the primarily coastal MPAs and the high-ranking reef nodes. Furthermore, network partitioning identified subnetworks and dispersal barriers. The existing MPAs were found to be disproportionately distributed to a few subnetworks and that the largest subnetworks do not contain the greatest number of MPAs. Considering these gaps, we suggest expanding the coverage of protected areas especially in underrepresented reef networks to meaningfully capture national-scale connectivity and meet global conservation objectives.We would like to thank Dr. Vera Horigue and Andrew Torres for constructive comments and suggestions during the early versions of this paper. We also thank the members of the Biological Oceanography and Modeling of Ecosystems (BiOME) Laboratory who assisted in running model simulations.
- Mining small molecules from Teredinibacter turnerae strains isolated from Philippine TeredinidaeVillacorta, Jamaine B.; Rodriguez, Camille V.; Peran, Jacquelyn E.; Batucan, Jeremiah D.; Concepcion, Gisela; Salvador-Reyes, Lilibeth A.; Junio, Hiyas A. (MDPI, 2022-11-21)Endosymbiotic relationship has played a significant role in the evolution of marine species, allowing for the development of biochemical machinery for the synthesis of diverse metabolites. In this work, we explore the chemical space of exogenous compounds from shipworm endosymbionts using LC-MS-based metabolomics. Priority T. turnerae strains (1022X.S.1B.7A, 991H.S.0A.06B, 1675L.S.0A.01) that displayed antimicrobial activity, isolated from shipworms collected from several sites in the Philippines were cultured, and fractionated extracts were subjected for profiling using ultrahigh-performance liquid chromatography with high-resolution mass spectrometry quadrupole time-of-flight mass analyzer (UHPLC-HRMS QTOF). T. turnerae T7901 was used as a reference microorganism for dereplication analysis. Tandem MS data were analyzed through the Global Natural Products Social (GNPS) molecular networking, which resulted to 93 clusters with more than two nodes, leading to four putatively annotated clusters: lipids, lysophosphatidylethanolamines, cyclic dipeptides, and rhamnolipids. Additional clusters were also annotated through molecular networking with cross-reference to previous publications. Tartrolon D cluster with analogues, turnercyclamycins A and B; teredinibactin A, dechloroteredinibactin, and two other possible teredinibactin analogues; and oxylipin (E)-11-oxooctadec-12-enoic acid were putatively identified as described. Molecular networking also revealed two additional metabolite clusters, annotated as lyso-ornithine lipids and polyethers. Manual fragmentation analysis corroborated the putative identification generated from GNPS. However, some of the clusters remained unclassified due to the limited structural information on marine natural products in the public database. The result of this study, nonetheless, showed the diversity in the chemical space occupied by shipworm endosymbionts. This study also affirms the use of bioinformatics, molecular networking, and fragmentation mechanisms analysis as tools for the dereplication of high-throughput data to aid the prioritization of strains for further analysis.The research was completed under the supervision of the Department of Agriculture-Bureau of Fisheries and Aquatic Resources (DA-BFAR), Philippines in compliance with Prior Informed Consent (PIC) certificate requirements and all required legal instruments and regulatory issuances covering the conduct of the research. The authors would also like to acknowledge the Department of Science and Technology-funded Discovery and Development of Health Products Program (DOST-DDHP) for the LC-MS Facility of the Institute of Chemistry, University of the Philippines Diliman.
- Synthesis and biological evaluation of cyanobacterial-inspired peptidesCasanova, Jannelle R.; Villaraza, Aaron Joseph L.; Salvador-Reyes, Lilibeth (Philippine-American Academy of Science and Engineering, 2024-03-18)Cyanobacteria are known producers of structurally diverse and potent natural products; the majority are peptides with unique modifications. Yet, there remains a huge underexplored chemodiversity from cyanobacteria. Here, we designed a linear octapeptide as a product of combinatorial peptide design inspired by the natural products from the filamentous cyanobacteria Hapalosiphon welwitschii and Leptolyngbya sp. The target peptide was synthesized via solid-phase peptide synthesis (SPPS) using fluorenylmethyloxycarbonyl-protecting group (Fmoc) strategy. Structural diversity was expanded by the substitution of unnatural amino acids to yield five analogues. The structure and sequence of the synthesized peptides were confirmed using nuclear magnetic resonance (NMR) spectroscopy and mass spectrometry (MS). Biological activity evaluation was done; with none of the peptides showing antimicrobial or cytotoxic activities against microbial pathogens and mammalian cells, respectively. To our knowledge, this study is the first to report a combinatorial peptide design inspired by a natural product and a predicted biosynthetic product. This strategy of peptide design expands the chemistry of a known bioactive natural product with the aid of unexplored cyanobacterial biosynthetic gene clusters.This study was funded by the Philippine Council for Health Research and Development – Department of Science and Technology through the Discovery and Development of Health Products – Marine Component Program. J.R.C acknowledges scholarship support from the Accelerated Science and Technology Human Resource Development Program of the Department of Science and Technology – Science Education Institute. We acknowledge the assistance of Z. Malto, J. Peran and S. Susana in the conduct of the biological assays. This is MSI Contribution No. 502.
- Fisheries Administrative Order No. 266: Series of 2020. Rules and regulations on the implementations of Vessel Monitoring Measures (VMM) and Electronic Reporting System (ERS) for commercial Philippine flagged fishing vessels amending FAO 260 Series of 2018.(Department of Agriculture, 2020-10-12)The objectives of this Order include: a. To enhance monitoring of fishing operations for fisheries management through the implementation of vessel monitoring measures. b. To enhance law enforcement to regulate the capture fisheries sector towards achieving long term resource sustainability. c. To implement vessel monitoring measures to track fishing behavior for scientific research and data. d. To establish a system that will facilitate law enforcement and aid in case building and prosecution of fisheries law violations. e. To gather data on fishing effort and catch data by means of an electronic reporting system which will serve as basis for fisheries management measures. f. To aid in the seafood traceability and catch documentary requirements of the government. g. To ensure safety for fishers thru a tracking device that would monitor the vessels' location during accidents and disasters. h. To implement policies embodied in Republic Act 8550, as amended by RA 10654 and its implementing rules and regulations, relating to the vessel monitoring requirements of fishing vessels. The Text consists of 26 Sections divided into 5 Chapters: General Provisions; lmpJementation of Vessel Monitoring Measures; Operational Requirements for Vessel Monitoring Measures; Penalties; Miscellaneous Provisions. All commercial catcher fishing vessels operating in Philippine waters and all fishing vessels in distant waters shall not engage in fishing activity without the vessel monitoring measures as established in FAO 260 and herein. The VMS shall apply to all licensed Philippine flagged commercial fishing vessels authorized by the Bureau of Fisheries and Aquatic Resources (BFAR) to operate in the high seas and those fishing vessels with access rights to fish in other countries' exclusive economic zones. All catcher vessels 30 GT and above operating either in the high seas or with access rights to fish in other coastal states and/or fishing in the Philippine EEZ shall have an installed Electronic Reporting System which can connect to the VMS transceiver to send fishery information to BFAR. For all other vessels, a combination of onboard and port ERS systems shall be implemented to electronically capture and report catch information. As a prerequisite for registration or license renewal, all commercial fishing vessels must secure a certification confirming that: a. An accredited ALC has been installed and verified as fully operational by the Department of Agriculture- Bureau of Fisheries and Aquatic Resources (DA-BFAR). b. The ALC unit deployed has been accredited and certified as meeting the minimum standards set by the DA-BFAR. The Order further make provisions for: the main center for monitoring and gathering data for the purpose of this Order; data access; vessel monitoring measures in marine protected areas; minimum data requirements; accreditation of data systems and service provider; frequency of reporting: offences and penalties; etc.