Ecological Archives A017-064-A1

Emma J. Rochelle-Newall, Christian Winter, Cristina Barrón, Alberto V. Borges, Carlos M. Duarte, Mike Elliott, Michel Frankignoulle, Frederic Gazeau, Jack J. Middelburg, Marie-Dominique Pizay, and Jean-Pierre Gattuso. 2007. Artificial neural network analysis of factors controlling ecosystem metabolism in coastal systems. Ecological Applications 17:S185–S196.

Appendix A. Spearman correlation coefficients for the parameters used in model development. Values in bold highlight relevant (R > 0.5) and significant (P ≤ 0.05) correlations. Only the in situ values from the Scheldt estuary were included.

 

Bottom

BP

Chl a

Chl b

Chl c

Depth

DOC

NH4

NO2

NO3

O2 %

PAR

PAR (%)

PO4

Sal.

DSi

SPM

SPM % C

SPM % N

TDN

TDP

Temp.

PR-ratio

Bacteria

-0.667

0.765

0.855

0.694

0.621

-0.443

0.820

0.734

0.823

0.787

-0.841

-0.216

-0.124

0.872

-0.855

0.880

0.558

0.134

0.040

0.710

0.663

-0.294

0.093

Bottom

 

-0.684

-0.664

-0.531

-0.611

0.251

-0.737

-0.567

-0.616

-0.650

-0.613

0.195

0.291

-0.521

0.739

-0.655

-0.334

-0.180

-0.011

-0.534

-0.451

0.303

-0.053

BP

 

 

0.666

0.590

0.422

-0.301

0.757

0.645

0.660

0.678

-0.659

-0.169

-0.189

0.732

-0.688

0.735

0.376

0.093

0.023

0.578

0.548

-0.157

-0.027

Chl a

 

 

 

0.673

0.869

-0.417

0.788

0.756

0.855

0.817

-0.788

-0.300

-0.189

0.826

-0.880

0.831

0.699

0.152

-0.001

0.827

0.593

-0.539

0.221

Chl b

 

 

 

 

0.425

-0.204

0.500

0.480

0.623

0.475

-0.758

-0.338

-0.270

0.675

-0.660

0.699

0.351

0.228

0.300

0.390

0.589

-0.103

0.113

Chl c

 

 

 

 

 

-0.288

0.589

0.489

0.586

0.643

-0.454

-0.663

-0.122

0.530

-0.668

0.611

0.541

0.124

-0.143

0.636

0.408

-0.280

0.115

Depth

 

 

 

 

 

 

-0.461

-0.357

-0.471

-0.468

0.352

-0.428

-0.657

-0.397

0.505

-0.413

-0.288

0.103

0.188

-0.465

-0.240

0.226

-0.378

DOC

 

 

 

 

 

 

 

0.798

0.865

0.896

-0.759

-0.121

-0.083

0.792

-0.888

0.825

0.550

0.032

-0.164

0.814

0.519

-0.375

0.068

NH4

 

 

 

 

 

 

 

 

0.839

0.822

-0.761

-0.368

-0.241

0.815

-0.770

0.763

0.637

-0.077

-0.190

0.794

0.473

-0.508

-0.049

NO2

 

 

 

 

 

 

 

 

 

0.903

-0.846

-0.254

-0.097

0.868

-0.913

0.900

0.603

0.118

-0.029

0.857

0.588

-0.460

0.120

NO3

 

 

 

 

 

 

 

 

 

 

-0.712

-0.162

-0.094

0.818

-0.861

0.845

0.629

0.050

-0.175

0.896

0.576

-0.443

0.058

O2 (%)

 

 

 

 

 

 

 

 

 

 

 

0.427

0.289

-0.861

0.848

-0.901

-0.512

-0.150

-0.130

-0.627

-0.650

0.241

-0.017

PAR

 

 

 

 

 

 

 

 

 

 

 

 

0.852

-0.266

0.233

-0.309

-0.210

-0.103

-0.144

-0.130

-0.232

0.290

0.408

PAR (%)

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.121

0.123

-0.188

-0.117

-0.159

-0.153

-0.066

-0.179

0.153

0.468

PO4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.750

0.912

0.616

0.029

-0.045

0.761

0.806

-0.219

0.039

Salinity

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.891

-0.523

-0.164

-0.022

-0.804

-0.511

0.495

-0.151

DSi

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.490

0.206

0.116

0.727

0.715

-0.232

0.020

SPM

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.286

-0.429

0.675

0.359

-0.472

0.196

SPM %C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.878

-0.009

0.173

-0.029

0.133

SPM %N

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.237

0.101

0.174

0.073

TDN

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.514

-0.531

0.058

TDP

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

0.005

0.048

Temp

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

-0.205



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