Nesting behavior of greater eelpout (Lycodes esmarkii), identified through a predation event by spotted wolffish (Anarhichas minor).

Autor: Kennedy J; Marine and Freshwater Research Institute, Ísafjörður, Iceland., Gunnarsson Á; Marine and Freshwater Research Institute, Hafnarfjörður, Iceland., Pampoulie C; Marine and Freshwater Research Institute, Hafnarfjörður, Iceland., Wienerroither R; Institute of Marine Research, Bergen, Norway.
Jazyk: angličtina
Zdroj: Journal of fish biology [J Fish Biol] 2024 Apr; Vol. 104 (4), pp. 1247-1250. Date of Electronic Publication: 2024 Jan 09.
DOI: 10.1111/jfb.15648
Abstrakt: The stomach of a spotted wolffish (Anarhichas minor) caught in Icelandic waters was found to contain ~727 greater eelpout larvae (Lycodes esmarkii). All the larvae were of similar size and at a similar state of digestion, indicating they were all consumed together. The likely explanation for this observation is that greater eelpout lay their eggs in a nest, with the larvae remaining in the nest for a short period after hatching. The larvae were then predated upon by the spotted wolffish while still in the nest. This study sheds new light on greater eelpout in Icelandic waters, with recently hatched larvae being present in March, breeding at a depth of ~200-250 m, and likely exhibiting nesting behavior, which has not previously been documented.
(© 2024 Fisheries Society of the British Isles.)
Databáze: MEDLINE
Externí odkaz: