Fish assemblages as indicators of estuary ecosystem health

Estuarine fish assemblages as indicators of environmental changes: the Mondego estuary case study

1 RESUMO 5 GENERAL INTRODUCTION 9 Estuaries: drivers, pressures and responses 9 Estuarine fish fauna 11 Recruitment variability of marine species 13 Climate forcing and systems’ changes 16 Assessing ecological status of transitional waters 18 Study site – the Mondego estuary 21 References 24 GENERAL AIM AND THESIS OUTLINE 35 CHAPTER I The influence of an extreme drought event in the fish commun...

Orchids as Indicators of Ecosystem Health in Urban Bushland Fragments

The Trophic Structure of Coral Reef Fish Assemblages:"trophic Spectra" as Indicators of Human Disturbances

Ecosystem indicators were investigated through the study of the trophic structure of reef fish assemblages, in separate coral reef ecosystems of the south-west lagoon of New Caledonia. In a first step, a fractional trophic level was assigned for each fish species. Abundances profiles along trophic levels were subsequently plotted in order to search for trophic changes under various level of fis...

A Comparison of Fish Assemblages from Seagrass and Unvegetated Areas of a Southern Australian Estuary

Assemblages of small fish from eelgrass (mainly Zostera muelleri) and unvegetated patches in a shallow, marine-dominated estuary were compared over one year as a preliminary step towards finding the consequences of eelgrass loss to small fish. There were more species and more individuals at eelgrass sites than at unvegetated sites at every sampling period. Multivariate analysis (MDS ordination)...

Fish otoliths as indicators in ecosystem based management: results of the 5th International Otolith Symposium (IOS2014)

Department of Biology, University of Bergen, PO Box 7803, N-5020 Bergen, Norway. Institute of Marine Research and Hjort Centre for Marine Ecosystem Dynamics, PO Box 1870, N-5817 Bergen, Norway. Email: [email protected] Mediterranean Institute for Advanced Studies (IMEDEA), Spanish National Research Council (CSIC)–University of the Balearic Islands (UIB), Miquel Marques 21, E-07190 Esporles, ...