The present study examined length-weight relationship and some growth parameters of Tigris Trout (Salmo tigridis Turan, Kottelat & Bektaş, 2011) caught in Çatak Stream. By using electroshock casting nets, 162 trout were between January 2008 2009. fork lengths total weights measured, sexes the fish identified. Furthermore, their age was also identified line with otoliths. range found out...

Stock size and status of red mullet Mullus barbatus were assessed via virtual population analysis yield prediction using on-board observed length-frequency catch data from the north-eastern Mediterranean Sea. The von Bertalanffy growth parameters obtained L∞ = 35.4 cm, k 0.42, t0 0.64, tanc 0.59 Φ′ 2.72. Trawl-type selectivity ogive was calculated as 1.57 years corresponding to 17.1 cm TL. M. i...

The black sea urchin (Arbacia lixula, Linnaeus, 1758) is a non-edible marine echinoderm of high ecological importance with the potential to affect communities. A. lixula were sampled monthly for one year from supralittoral fringe at two locations in Pagasitikos Gulf, north-western Aegean Sea. Morphometric characteristics exhibited significant spatiotemporal variation. population closer proximit...

In cattle breeding, growth curves are used for determining the most appropriate slaughter age, obtaining information about general health status of animals, estimating age sexual maturity and use in selection studies. The aim this study is to estimate Holstein calves using Bayesian Approach Brody, Logistik, Von Bertalanffy models. live weight data was collected from 34 raised at research farm N...

The Bertalanffy-Richards growth model is employed more than any other models for forest growth and yield modelling. However, its features have not completely been recognised. As a result, misunderstanding of the model still appears in some papers published in forest journals. A study by [1] is cited here as an evidence of the misunderstanding. This paper tries to explain different features of t...

The aim of the present study was to estimate the population parameters including length-weight relationship (LWR), condition factor (KF), relation condition factor (Kn), age, growth and mortality of Alburnus mossulensis in Azad dam and Komasi River in Kordestan Province, Iran. Of 522 specimens, the fork length, total length and weight of A. mossulensis ranged from 70 to 164, 75-175 mm, and 4.3 ...

The population parameters of Encrasicholina punctifer (Buccaneer anchovy) from commercial fishery in the Persian Gulf and Oman Sea coastal waters were studied from October 2014 to September 2015. A total of 13951 length-frequency data collected monthly by pair-boat purse seine and beach seine methods. The asymptotic length (L∞) and Von Bertalanffy growth function (K) were 11.5 cm and K = 1.4 pe...

The aim of this study is to provide necessary information on the biology of mosquitofish in Seyhan Dam Lake in Adana, which is located in southern part of Turkey. The population structure of eastern mosquitofish Gambusia holbrooki Girard, 1859 was studied in Seyhan Dam Lake. A total of 1582 specimens (772 males and 810 females) were collected monthly from January to December, 2007. The age comp...