Bogue ( Boops boops , Linnaeus, 1758) that was gathered in Antalya Bay had their ages, growth rates, and mortality examined. Using the von Bertalanffy equation, L t = 37.50 (1 - e -0.15(t + 1.32) ) (R 2 0.988), length expressed for entire sample without revealing any disparities between sexes. The values of allometric coefficient b length-weight relationships specify negative (b < 3) females...

We study a generalization of the von Koch Curve, which has two parameters, an integer n and a real number c on the interval (0, 1). This von Koch type curve is constructed as the limit of a recursive process that starts with a regular n-gon (or line segment) and repeatedly replaces the middle c portion of an interval by the n− 1 other sides of a regular n-gon placed contiguous to the interval. ...

We develop a model for somatic growth in fishes that explicitly allows for the energy demand imposed by reproduction. We show that the von Bertalanffy (VB) equation provides a good description of somatic growth after maturity, but not before. We show that the parameters of the VB equation are simple functions of age at maturity and reproductive investment. We use this model to show how the ener...

Body length and axillary girth measurements of more than 600 free-ranging Hawaiian monk seals from 1 to 20 yr old were analyzed. Comparison of fitted von Bertalanffy growth models confirmed there is no evidence of sexual dimorphism in this species. Substantial differences in growth patterns were detected among seven subpopulations representing the species entire geographic range. The age at whi...

The biological indicators of Chrysichthys walkeri (Claroteid catfishes) in lake Volta were investigated for their sustainable management. A total 846 samples collected from the March to December 2020. recorded length fish was analyzed using TropFishR. von Bertalanffy parameters including asymptotic (L∞), growth rate (K), and performance index (Φ) estimated as 28.88 cm, 0.42 per year, 2.54 respe...

Dyes plays an important role in our everyday life. From manufacturing plastics, paints, textile and even pills contain traces of dye used. With the ever-increasing demand for with growing world populations, use synthetic dyes has grown linearly. Bioremediation using microorganisms is on rise. The ability to accurately predict rate bioremediation relies upon gathering accurate decolourisation, w...

The length–weight relationships (LWR) of the common seadragon Phyllopteryx taeniolatus (Lacepède, 1804) and leafy Phycodurus eques (Günther, 1865), Syngnathidae, are presented in this paper, based on specimens raised Birch Aquarium at Scripps, La Jolla, California. Furthermore, we used length known age 40 15 seadragons to estimate parameter von Bertalanffy growth function (VBGF) for these speci...

Ages of yellowfin grouper (n = 306) from the southeastern United States coast from 1979-2014 were determined using sectioned sagittal otoliths. Opaque zones were annular, forming January-June (peaking in February-March). Yellowfin grouper ranged in age from 3 to 31 years; the largest fish measured 1,000 mm fork length (FL). Body size relationships for yellowfin grouper were: W = 1.22 × 10(-5) F...