Marine Resources Management and Conservation

Course objectives

General objectives The course aims to provide the basic knowledge of the management of marine resources related to: 1) pressures and threats on the marine environment, 2) dynamics of exploited populations, 3) models of population dynamics, 4) protection of marine environment in Italy and Europe, 5) marine pollution. The practical part of the course will allow the student to learn the basic methods for studying the marine environment and the dynamics of fish populations and to design experiments for the analysis of problems related to the exploitation of resources. Specific objectives Knowledge and understanding Knowledge and understanding of the environmental conditions and resources (collection and processing of information on the state of the environment and resources, assessment of the state of the environment and resources). Ability to identify sustainability objectives and criteria in the use of marine resources (national and community legislation, resource management tools, planning tools). Ability to recognize the main fish species of the Mediterranean sea. The student will be able to gain the knowledge and the ability to understand through the theoretical lessons integrated by seminars related to the discipline. The verification of the results achieved will be carried out with the exam. Ability to apply knowledge and understanding Ability to apply the acquired knowledge, understanding skills and ability to solve problems and to think about the principles of population dynamics. They must also be able to deal with the problems of the marine environment in a broad application context, with attention to the applicative possibilities, such as the choice and use of the tools of governance and protection of the territory. Ability to analyze the relationships that are established between human activities and the territory in coastal areas. The student can achieve the ability to apply knowledge and understanding through the practical exercises provided and especially through the work of experimental thesis. The verification of the results achieved will be carried out with the course exam and with the final degree examination. Making judgments Ability in the evaluation and interpretation of experimental data functional to the application of management policies. Ability to evaluate the most suitable solutions for the eco-compatible and sustainable management of resources. Ability to analyze the production and environmental contexts in the coastal strip. Ability to choose and use tools for land management and marine resources. The autonomy of judgment can be acquired especially during the activity for the experimental thesis in which the student must, albeit interacting with the speaker, participate in the design of the experimental activity, the critical analysis of the data obtained and will have to elaborate a discussion of the significance and importance of the data obtained in the light of specific bibliography on the subject matter. The verification of the results achieved will be carried out with the degree examination. Communication skills Ability to communicate in a clear way the knowledge acquired on the problems of management and conservation of marine resources, reporting in a professional and competent manner with institutional and private structures responsible for the management and protection of the environment. Ability to transmit acquired knowledge in a clear and understandable way to non-expert people. Communication skills can be achieved through interaction with the teacher and the teaching assistants and during the preparation of the thesis work. The verification of the results achieved will be carried out with the final degree examination. Learning skills Acquisition of the ability to deepen and read critically the evolution of problems related to the management and conservation of marine resources through the consultation of texts, scientific publications and information material that allows the student to continue autonomously in the study at an advanced level. The verification of the results achieved will be carried out with the course exam and with the final degree examination.

Channel 1
DANIELE VENTURA Lecturers' profile

Program - Frequency - Exams

Course program
Main topics covered in the courese: * 1. Resources in the marine environment and their exploitation and management (hydrocarbons, gas hydrates, polymetallic nodules, fishery resources) 2. Active and passive fishing gear, By-catch, discard and target species and By-catch Reduction Devices (BRT) 3. Definitions and basic concepts regarding species, population and stocks 4. Types of migration with examples (anadromy, catadromy, trans-zonal stock) 5. Methods for estimating stock abundance and shifts (CPUE, tagging and recapture, acoustic tags, Swept-area method, parasitological studies) - CPUE and variation of the catchability coefficient (q) over time and repercussions in the stock assessment 6. Populations and factors related to their dynamics (settlement, recruitment, growth and mortality, nursery areas, microhabitat and connectivity). - Life cycles and habitat distribution during the ontogenetic development of some fish species of commercial interest 7. Methods for estimating growth rates: scales, otoliths, frequency distribution of lengths. 8. Types of growth: isometry and allometry and estimation methods (size-weight relationship, allometric coefficient b) - Condition factor K - Growth curve of a species: Von Bertalanffy function (VBGF) - Estimate of the coefficients: L∞, K, T0 - Growth curve of a population and factors related to its oscillations: exponential curve (absence of limiting factors) and logistics (with bearing capacity of the environment K) 9. Natural (M) and fishing (F) mortality - Estimate of Z from the catch curve - Selectivity curves for fishing gear - Fishery-dependent and -independent data 10. Stock recruitment models (S / R models Ricker, Beverton-Holt) 11. Production models (Surplus production function, MSY function, Fox and Schafer models) 12. Analytical models (performance per recruit) - Isopleth diagram (isorendymetus curves) 13. Maximum economic Yield MEY (Open access equilibrium = tragedy of Commons, preventive measures) 14. Overfishing and overfished - Recruitment, growth and ecosystem overfishing - Reference points (Kobe Plot) - Impacts on fishing habitats - Causes and remedies for overfishing (AMP, biological stop, artificial reefs) 15. Marine Protected Areas: establishment, protection and management 16. Sampling - Sampling methods: survey techniques for seabed mapping: - Acoustic surveys: MBES and SSS, sonogram interpretation - Photographic surveys: photos, videos, ROVs, aerial photogrammetry of coastal and underwater sections (use of new photographic sampling methods such as drones and laser scanners) - Use of GIS in the management and processing of spatial data of various sources 17. Anthropogenic pollution and impacts on marine populations - Pollution by hydrocarbons, PCBs, mercury and other chemical pollutants - Eutrophication and management of the coastal strip (purification plants, dinoflagellate red tides) - Plastic pollution - Thermal pollution (Global warming, southernization, tropicalization and Lessepsian alien species) 18. Identification of fish and demersal species of commercial interest in the Mediterranean - Phylogeny of osteichthyes and chondrichthyes * Any additional issues can be explored by seminars held by external teachers
Prerequisites
Basic knowledge of zoology and ecology
Books
Teaching material will be provided by the teacher in the form of slides and lecture notes. Suggested texts: Michael King - Fisheries Biology, Assessment and Management (Wiley, 2013) Fish Population Dynamics, Monitoring, and Management (Springer 2018, Japan, DOI 10.1007 / 978-4-431-56621-2) Assessing the status of fish stock for management: the collection and use of basic fisheries data and statistics (Warsha Singh 2009) CLASSIFICATION AND DESCRIPTION OF FISHING EQUIPMENT IN USE IN ITALIAN MARINERIES WITH PARTICULAR REFERENCE TO THEIR ENVIRONMENTAL IMPACT (ICRAM manual). FAO manuals: FAO growth estimate Introduction to tropical fish stock assessment - Part 1: Manual
Teaching mode
Frontal lessons in the classroom. For the current year (2020),due to prevention measure aimed at reducing the spread of covid-19, the course is delivered electronically. Further information on the platforms used are available on the teacher page.
Frequency
Although not mandatory, attendance is recommended for a better understanding and discussion of the topics covered.
Exam mode
The exam will be held orally and the acquired knowledge as well as the quality of the presentation and the connection skills between various themes, as well as the knowledge of on main fish species, will be evaluated.
Lesson mode
Frontal lessons in the classroom. For the current year (2020),due to prevention measure aimed at reducing the spread of covid-19, the course is delivered electronically. Further information on the platforms used are available on the teacher page.
  • Lesson code1023373
  • Academic year2024/2025
  • CourseEcobiology
  • CurriculumBiologia ed ecologia marina
  • Year1st year
  • Semester2nd semester
  • SSDBIO/07
  • CFU6
  • Subject areaDiscipline del settore biodiversità e ambiente