Modelling and Analysis of Pufferfish (Torquigener albomaculosus) Circular Nest on Seafloor

Yıl 2023, Cilt: 12 Sayı: 4, 473 - 482, 31.12.2023

Mehmet Cem Çatalbaş

https://doi.org/10.33714/masteb.1305023

Öz

This study analyzed the structural features of the circular structures built by the male pufferfish (Torquigener albomaculosus) on the seafloor. This impressive circular structure which is built by male pufferfish exists in different depths and sizes on the seafloor. One of the objectives for the male pufferfish constructing these circular structures is to influence the opposite sex. The morphological features of these circular structures built on the sea floor were analyzed mathematically. This analytical study was performed using photographs received from the sea floor as well as the ratios of circular formations discovered in this context. During the image analysis, the histogram equalization method was used to improve the visuals and reveal the patterns of circular structures. The Hough transform method, which is commonly used in the determination of circular structures, was used in the process of precisely determining the dimensions of the obtained circular structures. The circle size ratios obtained from the images and the circular structure dimension ratios obtained from the observation were examined. When the ratio analysis results from 2 images and 6 observation data were examined, it was observed that significant traces of the golden ratio were seen in these nested circular structures. According to this study’s analysis of the pufferfish nest, which demonstrated proper development, the percentage difference between the golden ratio and the radius of the circular structures was determined to be as low as 0.185%. Additionally, these circular constructions were recreated in 3D while preserving their proportions, and their hydrostatic pressure characteristics were analyzed depending on their actual depths on the seafloor.

Anahtar Kelimeler

Animal behaviour, Shape analysis, Mathematical modelling, Torquigener albomaculosus, Golden ratio, Bio-inspired

Etik Beyan

For this type of study, formal consent is not required.

Kaynakça

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