European lobsters (Homarus gammarus) captured around the rocky island of Helgoland (German Bight, North Sea) from 2005 to 2015 - A mark-recapture program - ...
European lobsters were captured by employees of the Marine Biological Station and local fishermen from the rocky subtidal zone around the island of Helgoland (North Sea, 54°11.3'N, 7°54.0'E) and from the Helgoland Deep Trench, located south west of the island. The animals were captured by...
| Main Authors: | , |
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| Format: | Article in Journal/Newspaper |
| Language: | English |
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PANGAEA
2015
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| Subjects: | |
| Online Access: | https://dx.doi.org/10.1594/pangaea.855396 https://doi.pangaea.de/10.1594/PANGAEA.855396 |
| Summary: | European lobsters were captured by employees of the Marine Biological Station and local fishermen from the rocky subtidal zone around the island of Helgoland (North Sea, 54°11.3'N, 7°54.0'E) and from the Helgoland Deep Trench, located south west of the island. The animals were captured by pots, traps, trawl and divers. All measured lobsters were tagged and released. A tagged lobster was classified by the absence or presence of colour tag and/or T-bar tag. Data of lobsters contains capture date, fresh weight, carapace lengths, sex and the information if lobsters were egg-bearing and tagged. Furthermore, data of commercial landed lobsters are included. ... : T-Bar, Hallprint Pty. Ltd.: The T-bar anchor tags are inserted with a tagging gun (needle length: 2 cm) dorsally between the cephalothorax and the first abdominal segments at the right or left side. Used for lobsters >30 cm in total length. Colour Tag, Northwest Marine Technology Inc.: The elastomer tag (liquid at 0°C) are injected with a needle ventrally along the pleon under one or more intersegmental membranes. The tags fluoresce under UV Light and remain visible about five or more years. Used for lobsters >3 cm in total length. ... |
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