Fishing Gear Technology Lecture Notes PDF
Document Details
null
Prof. El-Azab E. Badr El-Bokhty, Dr. Mohamed Moustafa Hebalah
Tags
Summary
These lecture notes cover fishing gear technology, including introduction to fisheries, development of fishing methods and nets, and historical context. The document also discusses modern technologies in fishing and different types of fisheries.
Full Transcript
FISHING GEAR TECHNOLOGY Prof. El-Azab E. Badr El-BokhtyHead of Fishing Gear Lab., N.I.O.F. Dr. Mohamed Moustafa Hebalah., N.I.O.F. CONTENT INTRODUCTION IN FISHERIES DEVOLPMENT FISHING METHODS FISHING NETS -Fishing strategies -Vessels and fishing gear Modern techn...
FISHING GEAR TECHNOLOGY Prof. El-Azab E. Badr El-BokhtyHead of Fishing Gear Lab., N.I.O.F. Dr. Mohamed Moustafa Hebalah., N.I.O.F. CONTENT INTRODUCTION IN FISHERIES DEVOLPMENT FISHING METHODS FISHING NETS -Fishing strategies -Vessels and fishing gear Modern technologies in Fishing(Sounders and sonar, satellites and remote sensing) Introduction Definition Fishing technology is the discipline dealing with the natural sciences and technology for optimizing fish capture and fishing operations that leading to a productive and sustainable capture fishery. Introduction Fishing history is starting from ancient and going to modern, showing the improvement of materials and styles of fishing tackle and fishing gear. History of fishing cannot be precisely determined. Ancient Egyptian paintings found on temples. Introduction ii Ancient China, Neolithic period, 5000- 3000 years, fish net design was found drawn on a pot. Barter system between animal hunters & fishers at west Africa. Some Historical Pictures Stone Age, Fish hook made from bone Egyptians bringing in fish, and splitting for salting. Fish bone remains found in the diet of ancient man Fishing Tackle :Fishing tackle is a general term that refers to the physical equipment used by fishermen when fishing. Almost any equipment or gear used for fishing can be called fishing tackle. (= fishing gear, a term used in commercial fisheries). Webbing (Netting): (woven stuff), Netting is defined as a meshed structure of indefinite shape and size composed of one or more yarns twisted or interlaced or joined. The knotted (or knotless) yarn fabric composed of uniform openings or meshes, exclusive ropes, floats & other accessories. Mesh : one of the openings enclosed by the knotted (or knottless = joined) yarns forming the fabric of the net. Fishing: is the art of catching wild fish & other aquatic organisms and starts when deploying the fishing gear in water and ends when it is retrieved from water either at shore or on deck of the fishing vessel. The time spent is called soaking time. Fishing vessel: A fishing vessel is a boat or ship used to catch fish in the sea, or in a lake or river. Fisheries: A term related to the whole process of catching and marketing fish and shellfish for sale. It refers to and includes fisheries resources, fishermen and related businesses. It’s a system composed of the fish resource, habitat and man utilizing this resource. Classification of Capture fisheries : I- A- Based on the type of water ( fresh – salt water) B- Location of fishing (inshore – midwater – deepwater). C- Resource type (salmon fishing – sponge – Tilapia – whaling). D- Method of fishing (Seining – trawling – linning – harpooning). II- On a broad level : industrial, small-scale(artisanal and recreational). Anglers fishing over a bridge