Biofouling development in marine fish farm influenced by net colour, immersion period and environmental conditions

2020 ◽  
Vol 51 (8) ◽  
pp. 3129-3138
Author(s):  
Rikka Reyes ◽  
Annabelle Norte‐Campos ◽  
Nathaniel C. Añasco ◽  
Sheila Mae S. Santander‐de Leon
Keyword(s):  
Marine Fish ◽  
Environmental Conditions ◽  
Fish Farm ◽  
Immersion Period

Environmental Description in the Design of Fish Farms at Exposed Locations

2017 ◽  
Author(s):  
David Kristiansen ◽  
Vegard Aksnes ◽  
Biao Su ◽  
Pål Lader ◽  
Hans V. Bjelland
Keyword(s):  
Marine Fish ◽  
Environmental Conditions ◽  
Measurement Data ◽  
Field Measurements ◽  
Fish Farm ◽  
Fish Farms ◽  
Coastal Regions ◽  
Waves And Currents ◽  
Farm Structures

This paper addresses the description of exposure from waves and currents in coastal regions for design of marine fish farms. Representative descriptions of environmental conditions are important inputs to the design and dimensioning of reliable fish farm structures. A trend with moving production to more exposed sites and introduction of new and novel fish farm structures increase the need for more precise descriptions of the marine environment to keep control of uncertainties in design. Dedicated field measurements at two exposed aquaculture sites from February to December 2016 are presented. Results from statistical analyses of the measurement data demonstrate that common practice for characterization of exposure in design of fish farms has several deficiencies that should be improved to reduce uncertainties in design.

Impacts of a marine fish farm in Argolikos Gulf (Greece) on the water column and the sediment

Desalination ◽  
2007 ◽  
Vol 210 (1-3) ◽  
pp. 110-124 ◽  
Author(s):  
E. Mantzavrakos ◽  
M. Kornaros ◽  
G. Lyberatos ◽  
P. Kaspiris
Keyword(s):  
Water Column ◽  
Marine Fish ◽  
Fish Farm

Floc and sediment properties and their environmental distribution from a marine fish farm

2004 ◽  
Vol 35 (5) ◽  
pp. 483-493 ◽  
Author(s):  
E Kate Schendel ◽  
Susanne E Nordstrom ◽  
Les M Lavkulich
Keyword(s):  
Marine Fish ◽  
Fish Farm ◽  
Environmental Distribution ◽  
Sediment Properties

Numerical Analysis of a Floating Fish Cage With Feeding Systems

2020 ◽  
Author(s):  
Lin Li ◽  
Mathias Bruset ◽  
Muk Chen Ong ◽  
Xiaopeng Wu
Keyword(s):  
Environmental Conditions ◽  
Numerical Study ◽  
Coupled System ◽  
Feeding Tube ◽  
Fish Farm ◽  
Dynamic Responses ◽  
Feeding System ◽  
Solidity Ratio ◽  
Sensitivity Studies ◽  
Fish Cages

Abstract A modern marine-based fish farm normally consists of a feeding barge, several fish cages, and feeding tubes. Although many studies, both experimental and numerical, are available in the literature to investigate the global responses of the fish cages under wave and current conditions, research on the coupled system including both the fish cage and the feeding system is very limited. This paper presents a numerical study on the coupled system with a floating fish cage and the feeding system. The purpose is to study the dynamic responses of the coupled system under different environmental conditions and configurations of the fish farm. A numerical model is firstly established in the numerical program OrcaFlex, comprising of a feeding barge, a gravity-based floating fish cage with mooring systems, and a feeding tube between the barge and the cage. Time-domain simulations of this coupled system are then performed under environmental conditions corresponding to 1-year and 50-year return periods for a reference site. The deformation of the fish cage, the tensions in the anchor lines and in the feeding tube are compared under various conditions. Sensitivity studies on the solidity ratio of the fish net as well as the lengths of the feeding tube are addressed, and their influences on the responses of the coupled system are also discussed.

Marine fish diversity in Tropical America associated with both past and present environmental conditions

2020 ◽  
Vol 47 (12) ◽  
pp. 2597-2610
Author(s):  
Andrea Polanco F. ◽  
Fabian Fopp ◽  
Camille Albouy ◽  
Philipp Brun ◽  
Lydian Boschman ◽  
...  
Keyword(s):  
Marine Fish ◽  
Environmental Conditions ◽  
Fish Diversity ◽  
Tropical America
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