Influence of different types of sessile epibionts on the community structure of mobile invertebrates in an eelgrass bed

Graduate School of Environmental Science, Hokkaido University, Akkeshi, Hokkaido, Japan
Akkeshi Marine Station, Field Science Center for Northern Biosphere, Hokkaido University, Akkeshi, Hokkaido, Japan
DOI
10.7287/peerj.preprints.2591v1
Subject Areas
Biodiversity, Ecology, Environmental Sciences, Marine Biology
Keywords
Zostera marina, Spirorbid polychaetes, Environmental gradient, Linear mixed model, Macroalgae, Community structure, Epibiotic organisms, Species diversity, Biomass, Marine invertebrates
Copyright
© 2016 Momota et al.
Licence
This is an open access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, reproduction and adaptation in any medium and for any purpose provided that it is properly attributed. For attribution, the original author(s), title, publication source (PeerJ Preprints) and either DOI or URL of the article must be cited.
Cite this article
Momota K, Nakaoka M. 2016. Influence of different types of sessile epibionts on the community structure of mobile invertebrates in an eelgrass bed. PeerJ Preprints 4:e2591v1

Abstract

The variation in the biomass, abundance and diversity of mobile invertebrates in eelgrass (Zostera marina) beds has been examined in relation to various abiotic and biotic factors, such as water temperature, salinity, eelgrass biomass and epiphytic microalgae presence. However, the importance of sessile epibionts, such as macroalgae and calcific spirorbid polychaetes attached to eelgrass blades, has not been the focus of previous studies. In the present study, we examined the effects of three different sessile epibionts, namely, branched red algae, filamentous green algae, and calcific spirorbid polychaetes, on the biomass and diversity of mobile invertebrates in the eelgrass beds of Akkeshi in Northeastern Japan. The relationships of the dominant mobile invertebrate biomass, the total biomass of mobile invertebrates and the species diversity to multiple abiotic and biotic variables were analyzed using a linear mixed model. Our results show that large-sized epibiotic organisms can be good predictors of the variation in the total biomass, species richness and species diversity of mobile invertebrates and the biomass of major dominant species, especially for species that have a relatively high dependency on eelgrass blades. These results suggest that the different functional groups of sessile epibionts have significant roles in determining the biomass and diversity of mobile invertebrates in eelgrass beds.

Author Comment

This is a submission to PeerJ for review.

Supplemental Information

Biomass of 32 mobile invertebrates at seven stations in the Akkeshi-ko estuary and Akkeshi Bay

The biomass proportion and the rank are also shown.

DOI: 10.7287/peerj.preprints.2591v1/supp-1

A raw dataset for analyzing in our MS

This dataset includes all abiotic and biotic data for figure, table and statistical analyses.

DOI: 10.7287/peerj.preprints.2591v1/supp-2