We offer you some fishing technology as Farsi or Engish depend on the resourses that we have. You can choos your favorite with connecting us in nazarat part and let us to bring you some new or old fishing methods that you want. At this time we show you how to catch fishes with net casting from the land. Yes we want to explain you how to catch fishes with cast net that we called it (mashk or tore partabee) in Farsi.

A Cast net is a fishing net which is designed to be thrown out into shallow water and then hauled back in with a payload of fish. People have been using Cast nets for thousands of years, as mosaics from Ancient Greece, Rome, and China indicate, and they continue to be popular for recreational fishing. Cast nets are not widely used in the commercial fishing industry, because they are so labor intensive, but they are often on display in fishing museums and the headquarters of fishing companies as they are of historical interest....

the hole text in the continue...

در مورد تور اسرائیلی چقدر می دونید؟!!!

دانستنی های تور گوشگیر    Gill net

در سواحل شمال و جنوب ایران و در اکثر مناطق صیادی سایر کشورها، صیادان از نوعی تور برای صیدشان استفاده می کنند که  به صورت علمی به آن تور گوشگیر (Gill net) گفته می شود. طی پیشرفت علم  بشر در طول سالین گذشته استفاده از رشته های ترکیبی (combined filaments) در ساختار این تورها (nets structure) کنار گذاشته شد و امروزه بیشتر از تک رشته ها (mono filaments) در این تورها استفاده می شود. باید گفت که از زمان بکار گیری این تورها به تدریج صاحبنظران صید و صیادی و شیلاتی متوجه حجم خسارات ئارده از استفاده از این تورها به منابع آبزی شدند و در واقع استفاهد ه از این  نوع تور را در حال حاضر در بسیاری از نقاط صیادی ممنوع اعلام کرده اند. چرا؟

برای پاسخ به این سئوال باید ابتدا نظام صید با گوشگیر را بدانیم.

صید با تورهای گوشگیر ماهی را از عمیق ترین یا بلند ترین نقطه ی بدن که به آن (Body depth) گفته می شود و اندازه چشمه تور در آن بر اساس فرمول فریدمن (OM=L/K) بدست می آید صید می کند و ...

Keywords: Gill net, combined filaments, nets structure, Body depth, Selective able, Gill filaments, Opercula, under size catch, Passive, Active, Opening mesh size, static coefficient of our target species, length of our target species

متن کامل در ادامه مطلب...

 ایلیا اعتمادی دیلمی

کارشناس تکنولوژی صید و مدیریت ذخایر آبزیان

etemadi_1365@yahoo.com

Beach seines and some ways to decrease the costs and going toward technology

By:

Eelia Etemadi Deylami

etemadi_1365@yahoo.com

Technologist of prey and stock management

Abstract:

Nets in the beach seine include some obvious parts, like Dastak, right wing, the cod and left wing. The meshes size get smaller from wings to the inside the net, the cod. In 1948, in which tractors came in this fishing method, the system of this way of fishing was changed. Transference of fishermen, fishing instruments, nets and ropes and the others improved and got faster. Also the time of shooting and hauling the net got decrease.

In spite of the fact that the tractors improved something, but they are the main reason of some problems, like air and beach sands pollution, high density and the beach sand damage resulted from these tractor’s over movements, need of experienced people using and maintaining the tractors and so on. They need fuel to move too, so they need some tanks to save fuel. The quantity of catch can not answer the costs, because of empty resources.

We know our stocks need to long rest period to recruit themselves, but still many fishermen and their families are living based on this method of fishing. So we need to offer some new and safe way to stop or decrease these heavy costs.

In the main parts of this article, after having explanation on be advantage or disadvantage of this method, I offer three new methods to improve, like stop using the tractors and introduce the hydraulic winches, power blocks, crane and trained fishermen to use them, instead of tractors.

In the first way I set the two fixed winches and two fixed power blocks. Along the rope I use some reels to decrease the rope pressure. Second way has two fixed winches, but its power blocks are moveable for their rails under. The third way is the mix of these two ways. Because I set two moveable winches and two power blocks with their rails.

 Key words: Beach seine, tractors, resources, winch, power block

To get the whole article contact with the above e-mail

جهت دریافت مقاله کامل با ایمیل فوق تماس حاصل فرمایید.

تجهیزاتی که در صید های با قلاب مورد استفاده قرار می گیرند به قدری وسیع وپرتعداد هستند که چندید کتاب در همین راستا به چاپ رسیده است. در زیر تعدادی عکس به همراه اسامی آن ها ذکر شده است.

Detailed Fly Tying Tools, Bird Feather, Yarn, Craftwork Description

Features:
a) Yarns: Five different sub catalogues with polyester; polyester metallized monofilm;
b) metal threads ideal for fly typing.
c) ird feathers for fly tying
d) Metal tools for fly tying
e) Fishing craftwork and key rings

A trawler is a fishing vessel designed for the purpose of operating a trawl, a type of fishing net that is dragged along the bottom of the sea (or sometimes above the bottom at a specified depth)...

متن کامل را در ادامه مطل بخوانید...

متن کامل را در ادامه مطلب بخوانید...