Change search
ReferencesLink to record
Permanent link

Direct link
Role of mysid seasonal migrations in the organic matter transfer in the Curonian Lagoon, south-eastern Baltic Sea.
Stockholm University, Faculty of Science, Department of Systems Ecology.
2008 (English)In: ESTUARINE COASTAL AND SHELF SCIENCE, ISSN 0272-7714, Vol. 80, no 2, 225-234 p.Article in journal (Refereed) Published
Abstract [en]

We investigated population dynamics, growth and feeding of an omnivorous mysid, Paramysis lacustris, performing seasonal horizontal migrations in the Curonian Lagoon. In autumn, increased predation pressure and deteriorated feeding conditions, due to zooplankton and phytoplankton decline in the open water, forces mysids to migrate to the shoreline, where large amounts of decaying submersed vegetation occur at the end of plant growth season. Using stable isotope analysis and mixing models, we evaluated relative importance of decaying submersed macrophytes, lagoon phytoplankton and mesozooplankton in the diet of mysids during this period. In September- November, mysids actively grew and produced three cohorts. Specific growth rates of adults (10.9 +/- 1.9 mm) and subadults (6 +/- 0.5 mm)were 3 and 9% DW d(-1), respectively, resulting in population somatic production of 36 g DW m(-2). Both delta N-15 and delta C-13 of mysids varied in concert with those in suspended and bottom particulate organic matter (POM) and mesozooplankton. The mixing models estimated that 45% of mysid diets were composed of bottom POM originated from the decaying macrophyte Potamogeton perfoliatus, 45% by suspended POM largely consisting of phytoplankton. while mesozooplankton contributed less than 10% of the diet. This diet composition differs from that in summer, when mysids rely mostly on zooplankton and phytoplankton. Therefore, mysid horizontal migrations and their ability to efficiently utilize littoral detritus improve the efficiency of macrophyte detritus transfer up the food chain and inshore/offshore habitat coupling in the Curonian Lagoon.

Place, publisher, year, edition, pages
2008. Vol. 80, no 2, 225-234 p.
National Category
URN: urn:nbn:se:su:diva-15614DOI: doi:10.1016/j.ecss.2008.08.001ISI: 000260812400003OAI: diva2:182134
Addresses: 1. Klaipeda Univ, Coastal Res & Planning Inst, LT-92294 Klaipeda, Lithuania 2. Stockholm Univ, Dept Syst Ecol, SE-10691 Stockholm, SwedenAvailable from: 2008-12-06 Created: 2008-12-06 Last updated: 2011-01-10Bibliographically approved

Open Access in DiVA

No full text

Other links

Publisher's full text
By organisation
Department of Systems Ecology

Search outside of DiVA

GoogleGoogle Scholar
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Altmetric score

Total: 79 hits
ReferencesLink to record
Permanent link

Direct link