The paper [1] is very interesting and important for the biology of development. This is primarily due to the range of the topics involved: physiological and physical (chronological) times, allometry, metabolism, and growth rate. However, there have already been investigations that attempted to connect the above concepts. These papers are partially presented in the large bibliography [1] or, for...

This study investigated, for the first time, age and growth of spotted lanternfish Myctophum punctatum through an analysis otolith microstructure. A total 377 individuals were collected from Strait Messina (central Mediterranean Sea), ranging between 20.3 73.7 mm standard length. Their length–weight relationship was estimated, these outputs indicated isometric growth, all specimens when males f...

This study was conducted to compare three non-linear growth models (Logistics, Gompertz and Von Bertalanffy) in describing the of 360 turkeys genotypes (exotic, crossbred local). The curve parameters - A, B K for each model were estimated turkey using NLIN procedure (Marquart algorithm) Bayesian approach with a fixed-effect model. best fit also estimated. A comparison done among Akaike Informat...

Growth modelling is essential to inform fisheries management but often hampered by sampling biases and imperfect data. Additional methods such as interpolating data through back-calculation may be used account for bias are complex time-consuming. Here, we present an approach improve plausibility in growth estimates when small individuals under-sampled, based on Bayesian fitting models using Mar...

Despite its importance in fisheries studies, there is insufficient understanding on the effect of sampling error or bias individual growth and other stock indicators. We show influence sample length distributions parameter estimates, illustrating with an example. For brown swimming crab, we simulated samples five configurations estimated parameters von Bertalanffy (k, L∞L∞ , t0), asymptotic wei...

Abstract The doncella Pseudoplatystoma punctifer is an economically and ecologically important catfish in the Amazon basin. However, little known about its age, growth population dynamics parameters. This study aims to validate formation of marks vertebrae individuals collected from two rivers systems Peruvian (Amazon-Marañón-Ucayali Putumayo) compare parameters using von Bertalanffy function b...

In this study, we described age structure, body size, mass and the relationships among these parameters for a population of P. caucasicus from Lake Borçka Karagöl, Artvin, Turkey. The mean SVL with standard error was 45.87 mm ± 0.55 (range: 39.98-50.28 mm) weight 8.81 g 0.39 6.10-11.47 g) in females whereas 48.16 0.45 43.64-54.78 11.32 0.25 9.56-14.80 males, respectively. We found significant m...

The objective of this study was to evaluate the growth curve 525 monthly body weight data 19 males (n=313) and 8 females (n=212) swamp buffaloes (Bubalus b. carabanensis), from birth slaughter age (25 months). nonlinear models used were: logistic, Gompertz, Von Bertalanffy Brody. parameters were estimated by NLIN procedure, criteria adjustment given Akaike’s information criterion (AIC), Bayesia...

Abstract Accurate age estimates are crucial for assessing the life‐histories of fish and providing management advice, but validation studies rare many species. We corroborated with annual cycles oxygen isotopes (δ 18 O) in otoliths 86 northern pike ( Esox lucius ) from southern Baltic Sea, compared results visual scales otoliths, assessed bias introduced by different age‐estimation structures o...

The age and growth of the slender lightfish Vinciguerria attenuata are investigated for first time by analysis otolith microstructure. A total 242 individuals (standard length range = 15.3–39.0 mm) collected from Strait Messina (central Mediterranean Sea). length–weight relationship highlights a hyper-allometric all specimens, while when males females analyzed separately, results point out an i...