Occurrence report of some rare cephalopods in the NE Gulf of Makran with the investigation of morphometric, meristic, and diagnostic characteristics (under commercial exploitation resources)

Document Type : scientific research article

Authors

1 Fishing and Exploitation Department, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan, Iran

2 Department of Fishing and Exploitation, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan. Iran

3 Department of Fishing and Exploitation, Faculty of Fisheries and Environment, Gorgan University of Agricultural Sciences and Natural Resources, Gorgan. Iran.

4 Capture and Fishery Office, Iranian Fisheries Organization, Tehran, Iran.

Abstract

There are data-limited stocks of the Cephalopoda class in the Gulf of Makran (Gulf of Oman). This study was conducted in the neritic zone of the Gulf of Makran to find new information about cephalopods stocks in Iranian (I.R.I) aquatic ecosystems, as well as their key identification characteristics. The study area was northeast of the Gulf of Makran. Specimens were collected in August and September 2020. The sampling gear was a bottom trawl of a commercial trawler belonging to Ferdows multi-species trawl fleet. In addition to describing the location and depth of occurrence of three species Sepia saya, Acanthosepion stelliferum, and Uroteuthis (Photololigo) edulis in the northeastern of Iranian waters of the Gulf of Makran (Family: Sepidae & Loliginidae), this study also describes some morphometric, meristic, and diagnostic characteristics of them. Except for Acanthosepion stelliferum, which was caught in mass, other species were few. As new diagnostic information compared to the previous sources, 12 spots and a continuous color line were observed in the anterior and posterior parts of Sepia saya's mantel margin, and the hectocotylus region was also described for this aquatic. According to the observations, a greater depth range should be considered as the habitat of Sepia saya, and in general, a wider geographical distribution was envisioned for the mentioned species.

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Journal of Utilization and Cultivation of Aquatics
Volume 14, Issue 4
February 2026
Pages 101-117

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