Description of Individual Course Units
Course Unit CodeCourse Unit TitleType of Course UnitYear of StudySemesterNumber of ECTS Credits
9104015071998Fishing Net Design and Making TechniquesElective117
Level of Course Unit
Second Cycle
Objectives of the Course
The overall goal of this course is to provide theoretical knowledge and practical training in fishing gear design and construction techniques. The following studies for the fishing gear design and construction technique should be emphasized; a) Fishing technology, b) The basic materials of fishery, c) Theoretical fundamentals of fishing gear through mathematics, mechanics and physics. So as to implement the items mentioned above the following study course will be given as design and construction of fishing gear, operation of fishing gear, fish behaviour toward fishing gear and fishing gear technology and maintenance of fishing gear, respectively.
Name of Lecturer(s)
Prof.Dr. Adnan TOKAÇ
Learning Outcomes
1At the end of the course, students should be able to: Have detailed information on the theory of fishing gear and fishing system
2Have detailed information netting geometry and characteristics of fishing gear
3Analysis of the motion of fishing gear
4Determination of netting parameters
5Solve the problems on the forces acting on fishing gear
6Apply the model test of fishing gear
7To be able fishing gear design
Mode of Delivery
Face to Face
Prerequisites and co-requisities
Recommended Optional Programme Components
Course Contents
In these course main topics are; theory of fishing gear and fishing system, netting geometry and characteristics of fishing gear, internal and external forces acting on fishing gear, determination of netting parameters, analysis of the motion of fishing gear, fishing gear design and model test of fishing gear.
Weekly Detailed Course Contents
1Introduction of Fishing Gear and Fishing SystemsPractice in workshop
2Theoretical Representation of Fishing Gear and Fishing SystemsPractice in workshop
3Structural material: special dependence of the extensibility of the net, twine and rope for the external load, wear of net, strength of net, knotsPractice in workshop
4Estimation of netting twine thickness, length, netting weight, tenacity of twine, and hanging ratiosPractice in workshop
5Determination of shape: various methods of calculating elastic twine as an element of fishing gear, net shell subjected to internal forcesPractice in workshop
6The properties of net, geometrical form of the net, static equation for an arbitrary net surfacePractice in workshop
7Calculations of external loads acting on fishing gear: hydrodynamic resistance of net, rope and various parts of the rigging, buoyancy of net, Reynold’s number Practice in workshop
8Midterm Midterm
9Technical calculation of rigging, acting loads and shapes of the net gear and various movable gears Practice in workshop
10Calculation for tailoring nets (taper cuts) Practice in workshop
11General principles of designing fishing gear, the objectives and stages of fishing gear design, calculating auxiliary components for rigging fishing gear, preparing drawings and spesifications Practice in workshop
12Model tests of fishing gear, principles of model testing, installations for model tests, similarity rules in the construction and testing of fishing gear models and practical aspects of model testing procedures Practice in workshop
13Project Presentations Project Presentations
14Project Presentations Project Presentations
15Project Presentations Project Presentations
16Final exam Final exam
Recommended or Required Reading
Textbook: Tokaç, A., (2010). Ağ Yapım ve Donam Tekniği – Balıkçılık II Ege Üniversitesi Yayınları, Su Ürünleri Fakültesi Yayın No: 80, Ders Kitapları Dizini No: 40, Ege Üniversitesi Basımevi Müdürlüğü Fridman, A.L (1986). Calculations for fishing gear designs, FAO Fishing Manuals, Fishing News Book
Planned Learning Activities and Teaching Methods
Activities are given in detail in the section of "Assessment Methods and Criteria" and "Workload Calculation"
Assessment Methods and Criteria
Term (or Year) Learning ActivitiesQuantityWeight
Midterm Examination1100
End Of Term (or Year) Learning ActivitiesQuantityWeight
Final Sınavı1100
Term (or Year) Learning Activities40
End Of Term (or Year) Learning Activities60
Language of Instruction
Work Placement(s)
Workload Calculation
ActivitiesNumberTime (hours)Total Work Load (hours)
Midterm Examination111
Final Examination111
Attending Lectures14228
Report Preparation188
Report Presentation111
Project Preparation11616
Project Presentation122
Individual Study for Mid term Examination12020
Individual Study for Final Examination12020
Contribution of Learning Outcomes to Programme Outcomes
* Contribution Level : 1 Very low 2 Low 3 Medium 4 High 5 Very High
Ege University, Bornova - İzmir / TURKEY • Phone: +90 232 311 10 10 • e-mail: