Abstract Despite the high commercial value of striped seabream Lithognathus mormyrus (Linnaeus, 1758) in Gulf Tunis, biological data on its age, growth and exploitation rate are lacking. With aim estimating parameters, 516 individuals, ranging from 6–27.5 cm total length 3.5–293.5 g weight, were collected artisanal fishing fleet between February 2014 July 2016. The somatic presented a positive ...

Population dynamics parameters and stock status of Squaliobarbus curriculus (Richardson, 1846) were analyzed from May to September 2021 in the Lanxi section Qiantang River. FiSAT II software program was used. The growth coefficient K = 0.21 year–1, asymptomatic length L∞ 39.48 cm, age at theoretical zero-length t0 –0.74 years estimated. von Bertalanffy function calculated as Lt 39.48[1 – e–0.21...

Bu çalışmada Dil Balığı, Solea solea türünün Marmara Denizi’ndeki boy-ağırlık ilişkisi, yaş, büyüme ve ölüm parametreleri üreme biyolojisi ele alınmıştır. Örneklemeler 34 istasyondan Mart 2017 ile Aralık 2018 arasında dip trolü gerçekleştirilmiştir. Boy-ağırlık ilişkisi W=0,0082×TL3.01 olarak hesaplanmıştır. Bireyler 1 5 yaş aralığında dağılım göstermiştir. Von Bertalanffy L∞=34,.56 cm, K=0,48 ...

the age and growth of the persian sturgeon, acipenser persicus, obtained from the iranian coastal waters of the caspian sea, were studied through analysis of the pectoral fin ray section from 180 specimens, ranging in fork length (fl) from 66 to 203 cm. the specimens were obtained from commercial fisheries between october 2008 and june 2010. interpretation of growth bands in the pectoral fin ra...

the populations of wild carp (cyprinus carpio carpio), as a commercially valuable species in the southeast iranian waters of the caspian sea, have been severely declined during last three decades, but there is no comprehensive research available on the biology of this species in this area. the age, growth and reproductive aspects of samples collected during 2009-2010 fishing season were measure...

we study topological von neumann regularity and principal von neumann regularity of banach algebras. our main objective is comparing these two types of banach algebras and some other known banach algebras with one another. in particular, we show that the class of topologically von neumann regular banach algebras contains all $c^*$-algebras, group algebras of compact abelian groups and cer...

abstract background von willebrand disease (vwd) is an autosomally inherited bleeding disorder with the prevalence of 1% based on population studies. the disease phenotype is due to quantitative and structural/functional defects in von willebrand factor (vwf) which is a glycoprotein with essential role as a carrier of fviii in circulation and also it serves the function as hemostasis regulator....

The genus Drepanotrema includes six species in Argentina. The life cycle in natural systems of Drepanotrema depressissimum, and D. lucidum has been little studied, except for some casual observations. The aim of this study is to analyze main population trends (age structures, recruitment periods, life span and curves of individual growth) in Paiva pond, Argentina. We explored growth model fitti...