The gender of cod Gadus morhua can be determined by considering the complexity in their
gonadal ultrasonographic appearance. The fractal dimension (DB) can be used to describe …

Ultrasonography is a fast, accurate, and non–invasive method to determine the sex of cod
(Gadus morhua). In this study it was used on 788 farmed cod ranging in age from 1 to 6 yr …

This study was carried out to show that the fractal analysis complements the practical
disadvantage of gray level histogram which is designed to measure the quantitative …

An ultrasonographic technique for non-invasive sexing of barfin flounder Verasper moseri
was es tablished based on sexual dimorphism of gonadal appearence. We used here a high …

Sex determination in trout is generally performed by measuring morphologic features during
the reproductive period. In this study, body height and weight, total length, fork length …

Sturgeons are the most vulnerable vertebrate group in the world, yet little is known about
their biology and ecology. A ban of most of their wild harvest has generated a dramatic …

Four methods were tested to identify gender in Asian Arowana (Scleropages formosus). The
arowana gender index (AGI), gross anatomy analysis, histology and DNA markers were …

A method to determine, non‐invasively, sex and gonad size employing ultrasonography and
using Atlantic salmon, Salmo salar Linnaeus, as an example, is described. Although gonads …

Using two conventional, medical, ultrasound imaging systems, we studied 15 juvenile and 5
mature coho salmon (Oncorhynchus kisutch) to determine if their sex could be ascertained …

The aim of the authors was to study the ultrasound sex determination and precision of the
method in a Siberian sturgeon (Acipenser baerii) population. The data collection was carried …