iran has 1260 km of coastline that borders the persian gulf and the oman sea in the northwest indian ocean. marine algae are one of the natural resources in the marine ecosystem which produce a wide range of new secondary metabolites with various biological activities that play an important role in the pharmaceutical care. in this study the cytotoxic activity of 28 marine algae of chabahar coas...

Article history: Received 7 January 2010 Received in revised form 20 August 2010 Accepted 17 September 2010 Available online xxxx 0079-6611/$ see front matter Published by Elsevier doi:10.1016/j.pocean.2010.09.020 ⇑ Corresponding author. Tel.: +1 508 495 2340; fax E-mail address: [email protected] (J.S. Link). 1 See research budget descriptions of NIH, DOD, compared to portions of NSF, NOAA, ...

Ocean warming can strongly impact marine fisheries; notably, it can cause the “mean temperature of the catch” (MTC) to increase, an indicator of the tropicalization of fisheries catches. In this contribution, we explore MTC changes in three large marine ecosystems (LMEs) along China’s coasts, i.e., the Yellow Sea, East China Sea, and South China Sea LMEs, and their relationships to shifts of se...

A revised estimate of daily ration in the tiger shark with implication for assessing ecosystem impacts of apex predators Neil Hammerschlag*, Austin J. Gallagher and John K. Carlson Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149, USA; Leonard and Jayne Abess Center for Ecosystem Science and Policy, University of Miami, P...

We estimated the total marine and brackish-water fisheries catches from the Baltic Sea Large Marine Ecosystem, from 1950-2007, taken by Denmark, Estonia, Finland, Germany, Latvia, Lithuania, Poland, Russia and Sweden. Using the ICES electronic catch database as the ̳reported data‘ baseline, we added several IUU (Illegal, Unreported and Unregulated) catch components: ̳adjustments‘ (data source a...

i Table of contents iv List of figures and tables vi Acknowledgements xv Author’s declaration xvi Chapter 1: General introduction 1.1 Marine ecosystem change 1 1.2 Theoretical considerations: seabirds as indicators of marine ecosystem change 4 1.3 Seabirds-Climate change effects 5 1.4 Seabirds-Fishery interactions 8 1.5 Conclusions 11 1.6 Aims of the thesis 11 Chapter 2: Influence of climate ch...

Citation: Tsiaras KP, Christodoulaki S, Petihakis G, Frangoulis C and Triantafyllou G (2017) Model Simulations of a Mesocosm Experiment Investigating the Response of a Low Nutrient Low Chlorophyll (LNLC) Marine Ecosystem to Atmospheric Deposition Events. Front. Mar. Sci. 4:120. doi: 10.3389/fmars.2017.00120 Model Simulations of a Mesocosm Experiment Investigating the Response of a Low Nutrient ...

1. Fishing is one of the most widespread anthropogenic impacts on marine ecosystems. In recent times, the development of measurable metrics of the resultant ecosystem effects has become an important aspect of fisheries management. Ecosystem models are often advocated as tools for the evaluation of system effects, but the extent to which models are able to make meaningful predictions has not yet...

Marine ecosystem is a complex nonlinear system. However, ecosystem health assessment conventionally builds on a linear superposition of changes in ecosystem components and probably fails to evaluate nonlinear interactions among various components. To better reflect the intrinsic interactions and their impacts on ecosystem health, an ecosystem coordination index, defined as the matching level of...

BACKGROUND Research on ecosystem services has grown exponentially during the last decade. Most of the studies have focused on assessing and mapping terrestrial ecosystem services highlighting a knowledge gap on marine and coastal ecosystem services (MCES) and an urgent need to assess them. METHODOLOGY/PRINCIPAL FINDINGS We reviewed and summarized existing scientific literature related to MCES...