Related Experiment Video
Updated: Jan 9, 2026
Basic Methods for the Study of Reproductive Ecology of Fish in Aquaria
Published on: July 20, 2017
Growth and reproductive dynamics of the devil firefish, Pterois miles (Bennett, 1828), in the Eastern Mediterranean
Taner Yıldız1, Nazli Demirel2, Aylin Ulman3
1Department of Fisheries Technology and Management, Faculty of Aquatic Sciences, Istanbul University, Istanbul, Türkiye.
Abstract:
The devil firefish, Pterois miles, an invasive alien species, presents a growing threat to marine biodiversity due to its rapid population expansion and significant ecological impacts in the Eastern Mediterranean Sea. This study, conducted between February 2020 and April 2021, aimed to assess the growth patterns and reproductive behaviour to better understand its invasion dynamics in Turkey. Monthly sampling revealed its length-weight relationship, with positive allometric growth. The reproductive dynamics showed a prolonged spawning season from June to November, with females displaying high fecundity, averaging 20,743 oocytes per batch. Females reached first maturity at 20.1 cm total length, and its natural mortality rate was estimated at 0.8 per year. Understanding life-history characteristics of lionfish is important for understanding its invasion success and may help develop effective measures to control its invasion to protect regional marine native biodiversity.
Related Concept Videos
00:57Population Growth
01:11Testing a Claim about Mean: Known Population SD
Estimating a population mean requires the samples to be distributed normally. The data should be collected from the randomly selected samples having no sampling bias. The sample size needed to be higher than 30, and most importantly, the population standard deviation should be already known.
In most realistic situations, the population standard deviation is often unknown, but in rare circumstances, when it...
01:07Speciation Rates