Recursos de colección

Aquatic Commons (36.559 recursos)

The Aquatic Commons is a thematic digital repository covering the natural marine, estuarine /brackish and fresh water environments . It includes all aspects of the science, technology, management and conservation of these environments, their organisms and resources, and the economic, sociological and legal aspects.

Subject = Health

Mostrando recursos 1 - 20 de 239

  1. Pathogenesis of Yersinia ruckeri-like isolates and compared with Streptococcus sp. in rainbow trout, Onchorhyncus mykiss

    Fadaeifard, Firouz
    Pathogenesis of an isolate of Yersinia rukeri-like bacterium was studied in rainbow trout weighting 8-12 g at 20C and acceptable water quality for 20 days.

  2. Study of infectious haematopoietic necrosis disease in some hatcheries and farmed rainbow trout in Iran using immunohistochemical technique and to comparing the obtained results with the PCR works

    Haghighi Khiabanian Asl, Adel
    To detect rainbow trout hatcheries for infectious hematopoietic necrosis virus, samples of kidney, liver, spleen, muscle, intestine, heart and gills of trout larvae were obtained from a number of trout hatcheries from different provinces. Also tissue samples were obtained for molecular works using RT- PCR procedure. Tissue samples were processed using standard histotechnique and the obtained sections were stained using immunohistochemical procedure. From 100 examined samples 35 were positive for IHN by immunohistochemical test. Also, from 100 samples examined, 43 were positive in RT- PCR studies. The obtained results show that some rainbow trout hatcheries are contaminated in different regions...

  3. Isolation and recognition Saprolegnia species from fungal infected eggs of the rainbow trout in Mazandaran province farms

    Hosseini Fard, Mehdi
    Fungal infection in the eggs of freshwater fish is well known as a problematic disease. That isolation and recognition Saprolegnia fungi from fungal infected eggs of the rainbow trout in Mazandaran province was the aim of this research. For this purpose fungal infected eggs were examined from six fish farm in the fall and winter 2005-2006. The eggs with fungi were inoculated on SDA, CMA, GPagar and hemp seed and sesame seed cultures in sterile tap water at room temperature (18-24°C). In this study recognized three genera and six species Saprolegniaceae members, based on morphological characteristics which contain: Saprolegnia, Achlya,...

  4. Filariasis research annual report 1952

    This 1952 report gives details of findings in the Southern and Southern Highlands Provinces. Accordingly in this publication a return is made to the more usual method of presentation, a summary being given of work done, with detailed sectional reports.

  5. Evaluation of indigenous molluscicides in water against schistosomiasis vectors

    Makanga, B.; Monkiedge, A.; Obbo, C.J.
    Seven varieties of indigenous Phytolacca dodecwulra L'Herrit (Phytolaccaceae) were field-tried for molluscicidal potency. Varieties (U96) and (U95) collected from Kabarole and Kabale respectively were the most potent with LD90 equal to 2.54 and 6.46 mg.t-· respectively. Water bodies ranging between 4,770 and 347,510 Iitres in Kibimba rice fields were treated with up to 50mg.t-· Snails kills were monitored every three months and 92 - 100% mortality rates were realized. HPLC fingerprints revealed the two P. dodecandra varieties to contain highest concentration of the active principle, oleanoglycotoxin- A or lemmatoxin - A.

  6. Marine Vertebrates and Low Frequency Sound: Technical Report for LFA EIS

    Croll, Donald A.; Tershy, Bernie R.; Acevedo, Alejandro; Levin, Phil
    Over the past 50 years, economic and technological developments have dramatically increased the human contribution to ambient noise in the ocean. The dominant frequencies of most human-made noise in the ocean is in the low-frequency range (defined as sound energy below 1000Hz), and low-frequency sound (LFS) may travel great distances in the ocean due to the unique propagation characteristics of the deep ocean (Munk et al. 1989). For example, in the Northern Hemisphere oceans low-frequency ambient noise levels have increased by as much as 10 dB during the period from 1950 to 1975 (Urick 1986; review by NRC 1994). Shipping...

  7. Survey of veterinery [sic] drug residues, environmental contaminants and mycotoxins of cultured shirmp [sic] in Iran

    Motalebi Moghanjoughi, Abbasali
    Economical achievement of optimal growth in developing countries may lead to sustainable poverty reduction. Agricultural activities play an important role in economy and human being welfare, which leads to establishment of food security and quality. Aquaculture products in developing countries share 51.4 percent of total agricultural production.7—percent in developed countries. Therefore undoutedly food production by means of quality and quantity has to be increased .The history of shirmp production goes back to 500 years ago. Today 50 countries of the world produce shirmp .In Islamic Republic of Iran shrimp production started since 1992 in the coastal region of Persian Gulf....

  8. Food safety through HACCP

    Adan, R. I. Y.

  9. Epidemiology of bilharzia (Schistosomiasis) among fishing communities of Lake Victoria

    Kadama, A.B.; Magumba, K.M.; Balirwa, J.S.; Kyangwa, I.J.; Odongkara, K.
    The study was done in six districts of Mukono, Jinja, Iganga, Bugiri, Busia and Kalangala. At both mainland shoreline and islands, 271 adult respondents were randomly selected from 17 landing sites of Lake Victoria over a four months period between October 2000 and January 2001. A questionnaire was administered for symptoms of schistosomiasis and samples of stool, urine and blood were taken from respondents. Stool and urine were analysed for schistosome eggs and blood. Blood was analysed for increased eosinophils. Snail samples were collected from various depths along the shoreline of study sites identified and screened for schistosome cercariae.

  10. Facing the challenges in aquaculture through biotechnology

    Ayson, Felix G.

  11. Polymerase chain reaction (PCR) in disease diagnosis

    de la Pena, Leobert D.

  12. Fish health: What is a diagnosis?

  13. Isolatin [sic] the bacteria produced biactive [sic] metabolits [sic] cytotoxic compound in order to prduction [sic] anticancer substance in the coral regin [sic] the Persian Gulf (Larak Island)

    Safaeian, Shila
    In the present investigation the marine bacteria isolated from corals, sponges sea water and sediments of coral regions in the larak Island located in the Persian Gulf and were examined for ability to produce cytotoxic metabolits in order to use as an anticancer compounds. Cytotoxic effect were isolated bacteria from different samples and were examined by Artemia Cytotoxic Bioassay test, in which 4.5 percent of sea waters, 12 percent of sediments and 28 percent of marine invertebrat showed cytotoxic activity, using Brine Shrimp Bioassay test. Streptomyces S-2004 isolated from soft coral specified as Sinularia erecta had LC50=0.5mg/m1 in Brine Shrimp...

  14. Future drugs from the sea

    The article presents several marine chemicals that are likely candidates for future drugs. There sources and applications were also discussed.

  15. Nereistoxin

    The article discusses Nereistoxin, a toxin isolated from marine annelids, its pharmacological and agricultural applications are discussed in the article.

  16. Toxicity test: Sponge toxin on tilapia fry

    The research was conducted to determine the toxicity of extracts from five Philippine species of marine sponges on tilapia Oreochromis niloticus fry. It was found out that the most potent was the methanol extract of Dysidea herbacea, it kills with the least toxin and at the shortest time.

  17. Folk medicine and horticulture

    The article discusses the uses of marine organisms in folk medicine and in horticulture in the Philippines. Commonly used marine organisms are the different varieties of seaweeds, sea urchin, sea cucumber, turtle, crocodile and fishes such as grouper and rabbitfish.

  18. How drugs from marine sources are isolated and produced

    The document illustrates the processes on the isolation of bioactive compounds from marine organisms and the production of marine drugs.

  19. The chemical prospectors

    The article discusses the results of researches on chemical prospecting of marine organisms containing compounds that show promise as anti-cancer drugs.

  20. Recommendations on the effects of aquaculture on public health

    The paper presents some recommendations on the effects of aquaculture on all persons affected by and involved in aquaculture, and to other users of waters in [which] aquatic organisms are farmed or which are affected by aquaculture: the farm workers, handlers and processors, sellers and consumers of aquaculture products.

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