Study of the Amount of Bony Fish Caught on the Southern Coast of the Caspian Sea in the Cities of Mazandaran Province from 2019 to 2022
Subject Areas : Journal of Animal BiologyMehran Moslemi 1 * , Mehdi Sahabi 2 , Abdolghafar Ebadi 3 , Somaye Ghasemi Cherati 4
1 - Department of Agriculture and Natural Resources, Jouybar Branch, Islamic Azad University, Jouybar, Iran
2 - Department of Marine Biology, Jouybar Branch, Islamic Azad University, Jouybar, Iran
3 - Department of Agriculture and Natural Resources, Jouybar Branch, Islamic Azad University, Jouybar, Iran
4 - Department of Marine Biology, Jouybar Branch, Islamic Azad University, Jouybar, Iran
Keywords: White fish, Catch, Station, Sampling, Mullet, Spearfishing,
Abstract :
The purpose of this research is to determine the species composition of the fly fishing method in Mazandaran province in 1401 and to compare it with the years 1398, 1399 and 1400. Sampling operations were carried out at different stations on a monthly basis, and fish catch statistics were also taken from the entire fisheries of Mazandaran in2022The stations studied are: Azadegan Kordkoy-Ashuradeh in Amirabad-Shahid Kargar located west of the Tajan River in Sari-Shahid Madani located in the left bank of the Joibar River-Shahid Ghasemi located in Namak Abrood-Chalus and Shahid Shirodi in Ramsar, which are named after the first three stations respectively. The total amount of catch at these stations in 2022 was 74614 kilograms It has been that most of them were related to mullet fish. Compared to 5 last year, 2018 had the highest amount of catch and 2021 had the lowest amount of catch White fish had the highest amount of catch in the past fluctuations. The amount of bony fish caught in Mazandaran province has had many fluctuations in the last five years, which was the lowest in 2021 with 39,768 kg. Expanding the explanations on the results of the graphs shows that the observed differences in catch rates depend on various factors such as environmental conditions, pollution and climate change. Therefore, to improve the management of marine resources and increase fish stocks, it is necessary to reduce pollution and better manage fishing methods.
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