نتایج جستجو برای: based fish farms

تعداد نتایج: 3040224  

2015
Carol Price Kenneth D. Black Barry T. Hargrave James A. Morris

Increasing human population and reliance on aquaculture for seafood will lead to expansion of the industry in the open ocean. To guide environmentally sustainable expansion, coastal stakeholders require tools to evaluate the risks that marine aquaculture poses and to craft science-based policies and practices which safeguard marine ecosystems. We summarized current knowledge regarding dissolved...

Journal: :The Southeast Asian journal of tropical medicine and public health 1997
K C Shekhar

Epidemiological studies have been conducted to determine the association between fish and disease. The fish were obtained from rivers, streams, ponds and lakes but few from aquaculture farms. While no defined studies have been carried out in Malaysia, baseline data show that fish obtained from aquaculture farms (mixed farming) contributed to cases of opisthorchiasis and clonorchiasis.

Journal: :دامپزشکی 0
سعیده حیدری نژاد کارشناس ارشد بافت شناسی آبزیان دانشگاه علوم وفنون دریایی خرمشهر نگین سلامات استادیار گروه بافت شناسی دانشگاه علوم وفنون دریایی خرمشهر فاضل پوراحمد استادیار دانشکده پیرادامپزشکی دانشگاه ایلام احمد سواری استاد گروه زیست دریا دانشگاه علوم وفنون دریایی خرمشهر بیتا ارچنگی استادیار گروه زیست دریا دانشگاه علوم وفنون دریایی خرمشهر

rinbow trout (oncorhynchus mykiss) is an important fish species in aquaculture. the bacterial disease caused the decline in the production of this fish. lactococcus garvieae is one of the most serious infectious agents that caused disease with economical losses in fish farms. streptococosis have signs similar to lactococcosis. therefore the definite diagnosis is sometimes complicated. in the la...

ژورنال: بوم شناسی آبزیان 2018

The effect of Palangan fish farms on water quality of Sirvan River was investigated using physicochemical and biological indicators from January 2015 to June 2015. Five stations were determined including 1) before the fish farm 2) after the fish farm effluent 3) sub-branch 4) 100 meter after fish farm effluent and 5) 1000 meters after fish farm effluent. EC showed significant differences in dif...

2006

In 1991, a matched case-control study was performed in Norwegian freshwater hatcheries on risk factors for infection with Aeromonas salmonicida subsp. salmonicida, the causative agent of furunculosis. The study was based on repl~es to a questionnaire mailed to smolt producers, and included 30 infected and 66 non-infected hatcheries, matched by county. The odds ratios for infection with A, salmo...

2014
Marina Nikolaou Nikos Neofitou Konstantinos Skordas Ioanna Castritsi-Catharios Lamprini Tziantziou

The accumulation of copper and zinc, the basic components of anti-fouling paints, was examined in cultured sea bass Dicentrarchus labrax and sea bream Sparus aurata. Samplings were carried out at 4 eastern Mediterranean fish farms. Two of the farms used nets treated with anti-fouling paints, and 2 used untreated nets. At each farm samples of sediment and fish tissue (muscle, liver and gills) we...

2011
Sarah Gehring

This report explores the differences in farm and farmer attributes, marketing and management practices, and economic performance among agritourism farms in Missouri receiving different numbers of visitors 1. This is the second report derived from the Missouri Agritourism Survey, a study conducted in 2009 by the Missouri Department of Agriculture and the University of Missouri Department of Park...

2017
Lone Madsen Morten S. Bruun Inger Dalsgaard

The demand for increased production on Danish rainbow trout farms as well as reduced environmental impact has lead to the redesign of some of the traditional flow-through farms to model farms based on recirculation technology. Traditional farms have consisted of earth ponds and used stream water, whereas model farms are based on concrete fish tanks, biofilters and a high degree of water recircu...

Journal: :Chemosphere 2008
Feei Sun Hui-Shan Chen

Chlorpyrifos, a widely used organophosphorus insecticide having many urban and agricultural pest control uses, is one of the major pesticides detected in Taiwan fishery products. Whereas previous studies examined, this study explored possible sources of chlorpyrifos residue, particularly in farmed fish. Eight hundred fourteen samples of marketable fish were analyzed for chlorpyrifos residues. O...

Journal: :Water research 2002
Rosa Tiziana La Simone Mirto Eugenia Favaloro Benedetto Savona Gianluca Sarà Roberto Danovaro Antonio Mazzola

We investigated and compared the impact of organic loads due to the biodeposition of mussel and fish farms on the water column of a coastal area of the Tyrrhenian Sea (Western Mediterranean). Physico-chemical data (including oxygen, nutrients. DOC and particulate organic matter), microbial variables (picoplankton and picophytoplankton density and biomass) and phytoplankton biomass (as chlorophy...

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