نتایج جستجو برای: fish cage culture

تعداد نتایج: 391594  

2005
Reginald B. Blaylock Daryl S. Whelan

Since its inception, aquaculture has developed into a major industrial complex, a major component of which is cage culture. Along with the growth, however, problems arose. Translocations of animals and diseases, as well as concerns over environmental effects limited the growth of the industry. The concept of fish health management whereby the host, pathogen, and environment are proactively mana...

Journal: :Lakes and Reservoirs: Research and Management 2021

Abstract We present a GIS‐based approach to the delineation of areas that have different levels suitability for use as tilapia cage culture sites Kenyan part Lake Victoria, Africa. The study area was 4,100 km 2 . method uses high‐resolution bathymetric data, newly collected water quality data from all major fishing grounds and sites, existing spatial information previous studies. parameters con...

Journal: :IFAC-PapersOnLine 2022

Protecting the remaining wild salmon stock in Norway is of utmost importance and requires that farmed cannot escape from aquaculture sites. As holes net-cages are responsible for a large fraction escaped industry has to perform frequent inspections fish cage integrity. In this paper we propose an image processing computer vision based attention mechanism towards more automated fish-cage inspect...

2005
Narayan P. Pandit

This experiment was conducted for 150 days in 15 earthen ponds, 100 m2 in surface area and 1.2 m in depth, at the Institute of Agriculture and Animal science (IAAS), Rampur, Chitwan, Nepal. One cage (1.5 x 1.5 x 1 m and water volume of 2-m3) covered with 1-cm mesh net was suspended in each of the treatment ponds. There were one control and four treatments with three replicates each: carps at 1 ...

1999
C. Kwei Lin

An experiment on integrated walking catfish-tilapia culture was conducted for 5 months. The walking catfish were stocked at 400 and 800 fish/cage in two 4-m nylon cages, which were suspended in each of two 250-m earthen ponds. Sex-reversed male tilapia (Oreochromis niloticus) were reared at 1 fish/m2 in the open pond. Whereas the catfish were reared with supplemental feed, tilapia were solely d...

Journal: :Fishes 2023

A primary problem affecting the sustainable development of aquaculture is fish skin diseases. In order to prevent outbreak diseases and provide prompt treatment avoid mass mortality fish, it essential detect identify immediately. Based on YOLOv4 model, coupled with lightweight depthwise separable convolution optimized feature extraction network activation function, detection identification mode...

2007
K. S. Hutson

Metazoan parasites can threaten the sustainability and profitability of finfish sea-cage aquaculture. It is critical, therefore, to identify local parasite species and determine which are potentially harmful. Although several studies have documented parasite species on wild and farmed fish from aquaculture sites, few have used qualitative risk analyses to determine the likelihood and consequenc...

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