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Investigation of Marine Biofouling and the Possible Need to Develop Biofouling Control Measures in Nigeria

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Investigation of Marine Biofouling and the Possible Need to Develop Biofouling Control Measures in Nigeria World Maritime University The Maritime Commons: Digital Repository of the World Maritime University World Maritime University Dissertations Dissertations 11-4-2018 Investigation of marine biofouling and the possible need to develop biofouling control measures in Nigeria Naandem Rita Njin Follow this and additional works at: https://commons.wmu.se/all_dissertations Part of the Environmental Policy Commons Recommended Citation Njin, Naandem Rita, "Investigation of marine biofouling and the possible need to develop biofouling control measures in Nigeria" (2018). World Maritime University Dissertations. 639. https://commons.wmu.se/all_dissertations/639 This Dissertation is brought to you courtesy of Maritime Commons. Open Access items may be downloaded for non-commercial, fair use academic purposes. No items may be hosted on another server or web site without express written permission from the World Maritime University. For more information, please contact [email protected]. WORLD MARITIME UNIVERSITY Malmö, Sweden INVESTIGATION OF MARINE BIOFOULING AND THE POSSIBLE NEED TO DEVELOP BIOFOULING CONTROL MEASURES IN NIGERIA By NJIN, RITA NAANDEM Nigeria A dissertation submitted to the World Maritime University in partial fulfillment of the requirements for the award of the degree of MASTER OF SCIENCE In MARITIME AFFAIRS (MARITIME SAFETY AND ENVIRONMENTAL ADMINISTRATION) 2018 Copyright © Njin Rita Naandem, 2018 DECLARATION I certify that all the material in this dissertation that is not my own work has been identified, and that no material is included for which a degree has previously been conferred on me. The contents of this dissertation reflect my own personal views, and are not necessarily endorsed by the University. (Signature): …………………………. 18th September, 2018 (Date): …………………………. Supervised by: Professor Neil Bellefontaine Supervisor’s affiliation: Vice President (Academic) World Maritime University ii ACKNOWLEDGEMENT My profound gratitude goes to God Almighty, the Creator of the Universe, for seeing me through this programme without hitches. The maritime knowledge and skills I have acquired at the World Maritime University would not have been possible without the kind generosity of the International Transport Workers’ Federation (ITF), who found me worthy to be offered a scholarship towards this cause. I express, without mincing words, my sincere gratitude to my Project Supervisor, Professor Neil Bellefontaine, for his untiring efforts, guidance and constructive suggestions towards the successful completion of this research work. To the staff, faculty and students of the World Maritime University, particularly the Maritime Safety and Environmental Administration (MSEA) specialization, I say a special thank you for your support in one way or the other throughout my stay in the school and in Malmo, Sweden as a whole. My unflinching gratitude goes to my husband, Engineer Yila Danlele, for his prayers, patience, love, encouragement and constant support towards the achievement of my goals. I acknowledge tremendously my parents, Honourable & Mrs. Bernard B. Njin, my siblings and in-laws, for their love and moral support during the cause of this Programme. Finally, I acknowledge the management and staff of the Federal Ministry of Transportation, Nigeria and its Agencies, for finding me worthy to represent the Country towards the quest of making an impact in the maritime industry in Nigeria. iii ABSTRACT Title of Dissertation: Investigation of Marine Biofouling and the possible need to develop Biofouling Control Measures in Nigeria Degree: Master of Science Over the last few decades, the expansion of seaborne trade has risen exponentially. However, the movement of ships from one location to another carries aquatic species to new environments, which eventually becomes an important component of global environmental change. The major modes of invasion related to shipping occur when marine species are carried either in the ballast water of ships or attached to ships’ hulls (biofouling). Biological fouling, also known as “Biofouling is described as the undesirable accumulation of microorganisms, plants, algae and animals on submerged structures. Biofouling on ships’ hulls causes an increase in roughness, leading to an increase in hydrodynamic drag, which in turn leads to an increase in the rate of fuel consumption and Green House Gas (GHG) emission. In essence, biofouling has a detrimental effect on biodiversity conservation, as well as ecology, health and economy. This research was aimed at analyzing the potential impact of invasive species on ecosystem biodiversity, assessing the risk of the introduction of Harmful Aquatic Organisms and Pathogens (HAOP) from biofouling and assessing the need for a specific policy to address biofouling in Nigeria. Statistics on maritime traffic, as well as statistics on turnaround time and cargo throughput as a result of the Nigerian port reform of 2006 were used to determine the exposure level and vulnerability of the ecosystem and also to establish the risks to Nigeria. The need to fully implement the International Convention on the Control of Harmful Anti-Fouling Systems on Ship and the 2011 Guidelines for the Control and Management of ships’ biofouling to minimize the transfer of invasive species were recommended as measures to minimize the effects of biofouling. In addition, a recommendation was made for a proposed national biofouling regulatory framework with scientific acceptability and economic feasibility, while noting the importance of having an approved cleaning technique(s) with standardized facilities for ships’ hulls and niche areas, approved cleaning zones and technologies. KEYWORDS: Biofouling, Antifouling, Invasive Species, Hydrodynamic Drag, Biodiversity iv TABLE OF CONTENTS DECLARATION .................................................................................................. ii ACKNOWLEDGEMENT ................................................................................... iii ABSTRACT ........................................................................................................ iv TABLE OF CONTENTS ....................................................................................... v LIST OF TABLES ............................................................................................ viii LIST OF FIGURES ........................................................................................... ixx LIST OF ABBREVIATIONS ............................ Error! Bookmark not defined.i 1 INTRODUCTION ............................................................................................... 1 1.1 Background of the study ....................................................................................... 1 1.2 Aim and Objectives of the Study ........................................................................ 5 1.3 Research Methodology ......................................................................................... 5 1.4 Research Structure ................................................................................................. 6 2 THE INTRODUCTION OF INVASIVE SPECIES BY SHIPS ...................... 8 2.1 Physiological Principles of Aquatic Organisms ................................................ 8 2.3 Main Fouling Organisms ...................................................................................... 9 2.4 Some Fouling Organisms in the Tropics .......................................................... 13 2.5 Adhesion Mechanism .......................................................................................... 19 2.5.1 Bacterial Adhesion ............................................................................... 21 2.5.2 Microalgae Adhesion ........................................................................... 22 2.5.3 Macro-organism Adhesion .................................................................. 23 2.6 Factors influencing marine growth on ship hulls ............................................ 24 2.6.1 Characteristics of the ship ................................................................... 24 2.6.2 Characteristics of the Port Environment .............................................. 25 2.6.3 Biology of Fouling Organisms ............................................................ 26 3 BIOFOULING IN NIGERIAN PORTS .......................................................... 27 3.1 The Nigerian Port System .................................................................................. 27 3.2 Exposure of Nigerian Ports to Biofouling ........................................................ 30 3.2.1 Statistics of Maritime Traffic ............................................................ 30 v 3.2.2 Trading Regions ................................................................................... 32 3.3 Vulnerability of the Nigerian Ecosystem to Biofouling ................................. 34 3.3.1 Invasive Species in other Tropical Regions ....................................... 34 3.3.2 Conclusion . ...................................................................................... 39 4 CONSEQUENCES OF INTRODUCTION OF INVASIVE SPECIES IN NIGERIA ................................................................................................................... 40 4.1 Marine Fouling in the Guinea Current Large Marine Ecosystem (GCLME) ... Error! Bookmark not defined.0 4.2 Impacts of Biofouling ......................................................................................... 41
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