FBI 311: 5.2.1. Introduction

5.2.1. Introduction

Trawl is a bag like net dragged on the sea bottom or through water column to capture fishes. Otter boards attached by long cables, keep the mouth of the net open horizontally during operation. Vertical opening of the net is achieved by floats and sinkers in the head and foot ropes respectively. The fishes are retained in the codend at the back of the net that consists of strong meshes.

Last modified: Saturday, 7 April 2012, 5:52 AM

Home
- Site pages
  - Tags
  - Calendar
  - Site news
- Current course
  - FBI 311
    - Participants
    - General
    - Topic 1
    - Topic 2
    - Topic 3
    - Topic 4
    - Topic 5
      - 5.1.1. Introduction
      - 5.1.2. Selection Process and Selectivity
      - 5.1.3. Bell shaped selection curve
      - 5.1.4. Sigmoid shaped selection curve
      - 5.1.5. Gill Net selectivity
      - 5.1.6. Factors influencing the selectivity to Gill...
      - 5.1.7. General information needed
      - 5.2.1. Introduction
      - 5.2.2. Selectivity
      - 5.2.3. Factors affecting the selectivity of trawls
      - 5.2.4. Methods of measuring the selectivity of trawls
    - Topic 6
    - Topic 7
    - Topic 8
    - Topic 9
    - Topic 10
    - Topic 11
    - Topic 12
    - Topic 13
    - Topic 14
    - Topic 15
    - Topic 16
    - Topic 17
    - Topic 18
    - Topic 19
    - Topic 20
    - Topic 21
    - Topic 22
    - Topic 23
    - Topic 24
    - Topic 25
    - Topic 26
    - Topic 27
    - Topic 28
    - Topic 29
- Courses

Fish Population Dynamic and Stock Assessment (2+1)

5.2.1. Introduction

Navigation