نتایج جستجو برای: length growth

تعداد نتایج: 1099057  

D. Kor E. Nabavi Jelodar H. Azari H. Fazli, H. Taleshian M. Moghim

    The length-weight relationship, age, growth parameters, sex ratio, mortality and exploitation rate of Salmo trutta fario were determined in Lar dam. The sex ratio (male: female) was 1:1.84 which differed significantly from the expected 1:1. The length-weight regression was (females) and (males) indicating a negative allometric growth for both sexes. Growth parameters were estimated as L∞ = ...

M Aghaie-Khafri, M.H Sheikh-Ansari

Semi-solid materials undergo strain localization and shear band formation as a result of granular nature of semi-solid deformation. In the present study, to analyze the shear localization, a unified viscoplastic constitutive model was developed for the homogeneous flow. Then, a linearized analysis of the stability performed by examining the necessary condition for the perturbation growth. For t...

A Salarpouri , E Kamali , E Kamrani , M Dehghani ,

This is the first study of growth and age of Sardinella sindensis from coastal waters of Qeshm Island (Persian Gulf) based on the sectioned otolith reading method. In total, 128 fishes were collected randomly from purse seine commercial nets during March 2011 to February 2012. The annual formation of the growth rings were determined by counting the opaque and translucent zones occurrence at the...

حاج غنی, مهدیه , صفاری , مهری , مقصودی مود, علی اکبر ,

Soil salinity is an increasing environmental stress on crops in most areas of Iran since farmers use underground saline water for irrigation. In order to investigate the effects of salt stress on germination and seedling growth of safflower (Carthamus tinctorius L.), an experiment was conducted at two stages (germination seedling growth), using four levels of NaCl salinity (0, 5, 10, 15 ds/m), ...

Aileen Tan , S.H., Nithiyaa, N., Nooraini , I., Nuramira Syahira , S.,

Culturing of bivalves in the hatchery is the most popular technique for aquaculture that promotes a healthy bivalvechr('39')s production, where the animal would be less exposed to pollution from human activities. The increase of industrial and agricultural waste along the coastal region has altered the environment, hence affecting the growth and survival of aquatic organisms, particularly clams...

Journal: :international journal of aquatic biology 0
sandipan gupta aquaculture research unit, department of zoology, university of calcutta. samir banerjee aquaculture research unit, department of zoology university of calcutta.

length-weight relationship is the most commonly used analysis which has been used for several purposes in fisheries field among which estimation of weight from length is the most popular one. the present study has been performed to analyze the length-weight relationship of mystus tengara , a freshwater catfish of indian subcontinent. total length and body weight of the studied specimens have be...

Journal: :شیلات 0
معظمه کردجزی کارشناسی ارشد شیلات، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران محمد رضا ایمانپور دانشیار گروه شیلات، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران بهاره شعبانپور دانشیار گروه شیلات، دانشگاه علوم کشاورزی و منابع طبیعی گرگان، ایران

this study was carried out within 7 months in dikjeh area, golestan province, iran. during that time the relationship between water salinity and ec with hematocrite, blood serum ionic parameters, growth, survival and stress indices in common carp (cyprinus carpio) were investigated. hematocrite as stress index was measured by hemocitometry standard method using microhematocrite reader. fish bio...

ژورنال: توسعه آبزی پروری 2021

Rainbow trout is one of the 100 exotic invasive species in the world, and the biological characteristics of evaporated specimens of marine cages on the coast of Mazandaran including sex ratio, length and weight relationship, and growth are necessary. In order to study the rainbow trout growth parameters, 90 specimens of this species were collected from October 2017 to May 2019 from catching bon...

Ahmad Ebrahimi Mansoor Saljooghian Pour,

The effects of Drought and salinity stress on the growth and chemical compositions pennyroyal(Mentha pulegium L.) plant were investigated. This experiment was carried out in a factorial-randomized design with four replications in controlled conditions and plantlets were subject to four soil moisture regimes (40, 60, 80 and 100 of field capacity (FC)) and five salt treatments with 0, 25...

Journal: Mycologia Iranica 2018

In this study, two isolates of genus Microdochium (W2 and B26) was isolated from the roots of healthy barley plants in agricultural fields from Kermanshah province in 2014 and were identified as Microdochium bolleyi based on morphological and molecular characteristics. Dual culture studies revealed that W2 and B26 inhibit 45% and 20% of the radial growth of Ggt in tur...

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