نتایج جستجو برای: Allometric growth

تعداد نتایج: 820456  

Journal: :iranian journal of ichthyology 0
yazdan keivany department of fisheries, faculty of natural resources, isfahan university of technology, isfahan, iran. mosayeb aalipour isfahan university of technology masoud siami isfahan university of technology samaneh sadat mortazavi isfahan university of technology

the length-weight relationships for three fish species from beheshtabad river, karun river drainage (western chaharmahal and bakhtiari provinces, iran) were investigated. the values of the slope parameter ( b ) in the length-weight relationship equations were determined as 2.79 for capoeta damascina , 3.10 for chondrostoma regium and 3.09 for oncorhynchus mykiss , all of which were significantl...

Journal: :international journal of aquatic biology 0
yazdan keivany department of natural resources (fisheries division), isfahan university of technology, isfahan, 84156-83111, iran. ali nezamoleslami department of natural resources (fisheries division), isfahan university of technology, isfahan, 84156-83111, iran. salar dorafshan department of natural resources (fisheries division), isfahan university of technology, isfahan, 84156-83111, iran. soheil eagderi department of fisheries, faculty of natural resources, university of tehran, tehran, iran.

this study describes the length-weight and length-length relationships for 28 populations of garra ruffa in different basins of iran, including tigris, karkheh, karun, persis and hormuz. the length-weight relationships from most localities are reported here for the first time. for most populations the b value was not significantly different from 3, indicating an isometric growth, in a few, it w...

Journal: :international journal of advanced biological and biomedical research 2013
javid imanpour namin taravat molayemraftar mina rajabpour sanam heidary

length weight relationships of vimba vimba persa were studied. for this purpose 174 fish samples were collected by gill nets, beach seine and purse seine from march through june 2008 at two guilan fisheries catch stations of guilan located in anzali- kiyashahr regions. samples were immediately transferred to the laboratory of fish biology at university of guilan for further analyses. length, we...

Journal: :CoRR 2011
Lingfei Wu Chengjun Wang

Allometric growth is found in many tagging systems online. That is, the number of new tags (T ) is a power law function of the active population (P ), or T ∼ P γ (γ 6= 1). According to previous studies, it is the heterogeneity in individual tagging behavior that gives rise to allometric growth. These studies consider the power-law distribution model with an exponent β, regarding 1/β as an index...

A.G. Mazlan, K.D. Simon, M.A. Hussain, M.T. Alam, M.T. Hasan, S. Sultana, S.K. Mazumder,

Population growth (length-weight relationship), and reproductive potential (e.g. fecundity, and sex-ratio) of five important fish species (‘mola’: Amblypharyngodon mola, ‘puti’: Puntius sophore, ‘tengra’: Mystus vittatus, ‘shing’: Heteropneustes fossilis and ‘taki’: Channa punctatus) collected from two important fresh water bodies (nam...

2007
V. Margeta Gordana Kralik Vladimir Margeta

The aim of this study was to investigate the influence of MHS genotype on growth and development of muscle and fatty tissue in pig hams. The investigation was performed on 72 barrows divided into 4 groups according to genotype (NN and Nn) and feeding regime (standard and intensive). The data for analyses were collected by MRT imaging; the coefficients of allometric growth were calculated using ...

Abstract Scomberoides commersonnianus is one of the commercially important fishes of the family Carangidae. In this study, 563 specimens (292 males, 247 females, and 24 sexually unknown ones) were collected from the north-west of the Persian Gulf. Length-weight relationships and condition factors were determined for each sex in four length classes within different seasons. In general, the growt...

Masoomizadeh, S.Z., Pazooki, J., Valinassab, T.,

The present study, which was conducted on Scomberoides commersonnianus as one of the commercially important fishes of Carangidae, seeks to investigate changes of length-weight relationships in different sexes, seasons and length classes and to calculate condition factor of Talang queenfish. In this study, 563 specimens (292 males, 247 females, and 24 of unknown sex) were collected from the nort...

2015
Jeremy Priest Jeremy Stovall Eric J. Jokela

Surface lignite coal mines in east Texas are commonly reforested using loblolly pine (Pinus taeda L.) following mining and reclamation activities. Due to the nature of such an extreme disturbance, altered growth patterns, growth rates, and productivity could be expected. We destructively sampled aboveand belowground tissue to develop prediction equations specific to these sites. These predictio...

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