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Rare Observation of a Female Argonauta argo in the Northeastern Aegean Sea: A Contribution to Mediterranean Cephalopod Records
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Rare Observation of a Female Argonauta argo in the Northeastern Aegean Sea: A Contribution to Mediterranean Cephalopod Records
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Journal Article
Rare Observation of a Female Argonauta argo in the Northeastern Aegean Sea: A Contribution to Mediterranean Cephalopod Records
2025
Overview
Argonauta argo (Linnaeus, 1758), commonly known as the greater argonaut, is a pelagic octopod with a circumglobal distribution in warm and temperate seas. Although the species is occasionally reported in the Mediterranean Sea, confirmed in situ observations of live individuals remain scarce, particularly in the eastern basin. Here, we document the occurrence of a live female A. argo entangled in aquaculture nets at a sea bass (Dicentrarchus labrax) facility off the coast of Lesvos Island in the northeastern Aegean Sea, Greece. This represents the first confirmed observation in this part of the Mediterranean and only the second confirmed observation of a live individual in Greek waters. The individual was photographed in situ and identified based on diagnostic morphological features. The encounter occurred under specific hydrodynamic and environmental conditions potentially favorable to the species, including enhanced prey availability and structural refuge within the aquaculture infrastructure. This record contributes to the limited dataset on Mediterranean argonauts and underscores the need for further research into their ecology, distribution patterns, and potential interactions with anthropogenic marine structures.
Publisher
MDPI AG
Subject
