<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>Data on the population state, catch sizes, migration time, and intensity of the river lamprey, <italic>Lampetra fluviatilis</italic> (L.), are presented. Biological indexes of lamprey sampled in 2007-2009 in the lower reaches of the Nemunas River were analyzed. The study revealed that lamprey body length and weight characteristics have remained almost unchanged in recent years. However, it was found that reproducers had become smaller in size compared to investigation findings from the twentieth century.</p></abstract>

Data on the population state, catch sizes, migration time, and intensity of the river lamprey, Lampetra fluviatilis (L.), are presented. Biological indexes of lamprey sampled in 2007-2009 in the lower reaches of the Nemunas River were analyzed. The study revealed that lamprey body length and weight characteristics have remained almost unchanged in recent years. However, it was found that reproducers had become smaller in size compared to investigation findings from the twentieth century.

Length and weight distribution of the river lamprey, <italic>Lampetra fluviatilis</italic> (L.), sampled in the Nemunas River Estuary

Laboratory of Ecology and Physiology of Hydrobionts, Nature Research Centre, Akademijos Str. 2, LT-08412 Vilnius-21, Lithuania

Fisheries Service under Ministry of Agriculture, Republic of Lithuania, Vilnius, Lithuania

Fisheries & Aquatic Life

Length and weight distribution of the river lamprey,  (L.), sampled in the Nemunas River Estuary

Data on the population state, catch sizes, migration time, and intensity of the river lamprey, Lampetra fluviatilis (L.), are presented. Biological indexes of...

Length and weight distribution of the river lamprey, Lampetra fluviatilis (L.), sampled in the Nemunas River Estuary

Publié en ligne: 28 janv. 2011

Pages: 257 - 260

DOI: https://doi.org/10.2478/v10086-010-0029-5

Mots clés
lamprey stocks, abundance dynamics, migrations, biological indexes

This content is open access.