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85 research outcomes, page 5 of 9
  • Eight years (1990-1997) of the Beluga, Stellate Sturgeon, Persian Sturgeon and Russian Sturgeon in the south part of the Caspian Sea were analyzed for age composition. Yield-per-recruit curves were derived for each species based on growth parameters and mortality rates,...

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  • The effect of complete substitution of vegetable oils (cottonseed, soybean and grape seed) and a return to fish oil diets on growth parameters, survival and metabolism of free fatty acids in the diet of fish in the Caspian Sea, was investigated. Four experimental diets ...

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  • publication . Article . 2018
    Open Access Persian
    Authors:
    Mohammadrezaei, D.;
    Persistent Identifiers
    Publisher: Iranian Fisheries Research Organization

    The vitellogenin gene expression can be altered by some estrogenic plant compounds like Genistein and β-sitosterol. Therefore, the measurement of vitellogenin gene expression can be used as an indicator to determine their effect on reproductive performance of aquatic an...

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  • publication . Article . 2004
    Open Access Persian
    Authors:
    M. Moghim;
    Persistent Identifiers

    The changes of Ship stocks in the southern Caspian Sea was studied by measuring and considering different population parameters such as fish length, weight, age, sex ratio and caviar weight. Total catch of A. nudiventris in the Iranian waters in only 2 percent of total ...

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  • publication . Article . 1998
    Open Access Persian
    Authors:
    Akbari, H.;
    Persistent Identifiers
    Publisher: Iranian Fisheries Research Organization

    Mullet are abundant in costal and estuarine waters of Hormozgan. One of the fishing gears used for catching the species is Moshta, one type of set net. In present research 7 species have been identified in catch composition. The most abundant species were Liza carinata ...

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  • publication . Article . 2007
    Open Access Persian
    Authors:
    Mahdi Abkenar, A.;
    Persistent Identifiers

    Culture of Gracilaria was carried out in two 0.25 ha earthen ponds from October 2000 to September 2001. Data were acquired for 4 seasons. Culture system was fixed bottom line method. We could culture 500 grams of Gracilaria on each line in about 9 weeks. The seaweed rea...

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  • publication . Article . 1999
    Open Access Persian
    Authors:
    Ramin, M.;
    Persistent Identifiers
    Publisher: Iranian Fisheries Research Organization

    The research project was implemented to obtain bio-normative of artificial spawning of Esox lucius and rear fries until fingerling size in earthen ponds. The artificial spawning occured in 4 stages, totally 96 brooders (32 females and 64 males) were used for the experim...

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  • publication . Article . 1995
    Open Access Persian
    Authors:
    Hoseini, S.E.;
    Persistent Identifiers

    To obtain the normative s of artificial breeding biotechnique of Aspius aspius, mass production through artificial breeding and also recruitment of this valuable species, a project called “Artificial propagation of Aspius aspius” was planned and implemented. The project...

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  • publication . Article . 2012
    Open Access Persian
    Authors:
    M. Safaie;
    Persistent Identifiers

    The Chaoo Sharghi is located nearby mangrove forest in northwest of Qeshm Island, in the northern Persian Gulf. Given standing in migration of juvenile shrimps, this area is one of important regions in Hormozgan Province. This study aimed to determine population dynamic...

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  • publication . Article . 1998
    Open Access Persian
    Authors:
    Danesh-e-Khoshasl, A.;
    Persistent Identifiers

    A set of simple facilities for spawning and hatching Chinese carps using the "Chinese natural spawning method" were constructed in a private fish-farm and a Chinese round spawning tank was also built in a State Hatchery in Guilan Province. During the breeding season 544...

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85 research outcomes, page 5 of 9