Naomi Breine 1. Introduction Sampling 13 stations Sampled - PowerPoint PPT Presentation

Breine N. 1 ,Vanden Bavière A. 1 , Volckaert F. 2 & Hostens K. 1 Naomi Breine

1. Introduction

Sampling × 13 stations × Sampled monthly × 2 years (2013-2014) 3

13 stations: 8 subtidal (5-20m depth) 5 intertidal (<1m depth) Duinbergen Oostende BELGIU Calais De panne M Boulogne

Species Abundance Length & Condition Aim of the study? Environmental parameters

2. Results (PRELIMINARY) 6

Juvenile flatfish PLAICE DAB TURBOT SOLE BRILL FLOUNDER 2 2 % 67 1 8 3 8 Contribution to total density

SPECIES ABUNDANCE 500 450 Plaice Dab Turbot Sole Flounder Brill 400 350 300 IND/HA 250 200 150 100 50 0 Pan Duin Cal Ooststr Boul TRAP WEST1 WEST2 Oost NRAA DIEP KWINT ZEE Intertidal Subtidal

559 45 327 69 19 595 447 112 1480 240 104 304 197 97 41 75 558 146 375 26 130 DAB PLAICE 9

CONDITION DAB K =100 W/L 3 Fultons K PLAICE

Environmental parameters Salinity Temperature Winter temperature Year* Year* Season* Station* Station* Depth Epibenthic diversity Sediment Year* Margalefs d Station* Station* 350 300 250 200 µm 150 100 50 0 Pan Duin Ooststr Boul Cal Oost ZEE NRAA KWINT WEST1 WEST2 TRAP DIEP 11 Coast Sea

SPECIES ABUNDANCE Dab Plaice Sole station * *** * Year * * Season * * * Med grain Salinity ** * Winter Temp * Temperature Depth *** Diversity d * Brown shrimp (C. crangon ) * Shore crab (C. maenas) * *

3. Conclusive remarks 13

Juvenile flatfish species and their spatial distribution in belgian coastal waters: INTERTIDAL SUBTIDAL Previous data from 1996-1997 14

Ind/100m²* <1ind Data from Beyst, B., Buysse, D., Dewicke, A., & Mees, J. (2001). Surf zone hyperbenthos of Belgian sandy beaches: seasonal patterns. Estuarine, Coastal and Shelf Science , 53 (6), 877-895 .

Juvenile flatfish species and their spatial distribution in belgian coastal waters Previous data from 1996-1997 Environmental parameters and species abundance showed Spatial & Temporal variation Dab à Salinity Plaice à Winter- Temp, C. crangon & C. maenas Sole à Salinity & C.maenas Further development of models, Condition à Relative condition Larvae + otholyths 16

FISHCONNECT ILVO

ILVO Thank you Flanders Research Institute for Agriculture, Fisheries and Food Ankerstraat 1 For your attention 8400 Oostende – Belgium T + 32 (0)59 56 98 75 F +32 (0)59 33 06 29 dier@ilvo.vlaanderen.be www.ilvo.vlaanderen.be