Conflicts in the coastal zone: Human impacts on commercially - - PowerPoint PPT Presentation

Conflicts in the coastal zone: Human impacts on commercially important fish species with coastal habitat use

Elliot J. Brown DTU Institut for Akvatiske Ressourcer Rita P. Vasconcelos Universidade de Lisboa Karen van de Wolfshaar IMARES Josianne G. Støttrup DTU Institut for Akvatiske Ressourcer Håkan Wennhage SLU Institutionen för akvatiska resurser Giacomo Millisenda CNR Istituto per l'ambiente marino costiero Francesco Colloca NRC Institute for Coastal Marine Environment Ulf Bergström SLU Institutionen för akvatiska resurser Olivier le Pape Agrocampus Ouest

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Roots and Ideas

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Roots and Ideas

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Roots and Ideas

44% of ICES advice species utilise coastal habitats. 71% landings utilise coastal habitats

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Roots and Ideas

• 1. Revisit Seitz et al, 2014.

0.5 1 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

• 2. Illustrate temporal trends over the last decade.
• 3. Review evidence of human impacts

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Methods – Revisit 2014

ICES Species and Coastal Dependence up to and including 2010 ICES Species and Coastal Dependence 2010 - 2015

J

Juvenile Habitat

F

Feeding Habitat(Adults)

S

Spawning Habitat

M

Migration (Dispersal)

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Methods – Temporal Trends

0.2 0.4 0.6 0.8 1 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015

ICES Landings Data ICES Advice Library

1

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Methods – Evidence of Impacts

The literature search: Google Scholar & Scopus & Private Libraries

• Species’ name (binomial OR common)
• Habitat degradation terms

Responsible Species Name Degradation Life History Stage Scale Description (Including any Remedia Elliot Reference 1

Giacomo Anchovy Eutrophication or hypoxia Feeding Local Hypoxia can lead to a decoupling of pre Ekau, W., Auel, H., P̈ortner, H. O., & Gilbert, D. (2010). Imp – Giacomo Anchovy Eutrophication or hypoxia Spawning Population The excessive eutrophication induces a Niermann, U.; Bingel, F.; Kideys, a. . (1994). Distribution of Giacomo Anchovy Invasive or outbreak or prolifera Feeding Population Mnemiopsis leidyi has been introducted Kideys, A. . (1994). Recent dramatic changes in the Black Sea ecosystem: The reason for the sharp decline in Turkish anchovy fisheries. Journal of Marine Systems, 5(2), 171–181. doi:10.1016/0924-7963(94)90030-2 Giacomo Anchovy Invasive or outbreak or prolifera Juvenile Population Mnemiopsis leidyi has been introducted Oguz, T., Fach, B., & Salihoglu, B. (2008). Invasion dynami (12), 1385–1397. doi:10.1093/plankt/fbn094 Giacomo Anchovy Land reclamation or sediment or Juvenile Population Manipulation of river output from a dam Ruiz J, Gonzalez-Quiros R, Prieto L, Navarro G. A bayesian Karen Basking shark Xenobiotics or toxic* or sewage Feeding Individual Micro Plastics found in baskig shark tissu Fossi, M. C., Coppola, D., Baini, M., Giannetti, M., Guerranti, C., Marsili, L., … Clò, S. (2014). Large filter feeding marine organisms as indicators of microplastic in the pelagic environment: The case studies of the Mediterranean basking shark (Cetorhinus maximus) and fin whale (Balaenoptera physalus). , 17–24. doi:10.1016/j.marenvres.2014.02.002

Species Life History Stage Scale of Study Category of Perturbation General Description

• f Relevant Findings

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Results – Revisit Seitz

Life History Stage Common Name Binomial Classification Juvenile Feeding Spawning Migration Anchovy Engraulis encrasicolus X X X Basking shark Cetorhinus maximus X Brill Scophthalmus rhombus X Capelin Mallotus villosus X Cod Gadus morhua X X Dab Limanda limanda X X Eel Anguilla anguilla X European sea bass Dicentrarchus labrax X X Flounder Pleuronectes flesus X Herring Clupea harengus X Mackerel Scomber scombrus X Norway pout Trisopterus esmarkii Plaice Pleuronectes platessa X X Pollock Pollachius pollachius X Saithe Pollachius virens X Atlantic Salmon Salmo salar X Sandeel Hyperoplus spp. / Ammodytes spp. Sardine Sardina pilchardus X Sea trout Salmo trutta X X Sole Solea solea X X Sprat Sprattus sprattus X X X Striped red mullet Mullus surmuletus X Turbot Scophthalmus maximus X Whiting Merlangus merlangus X X X

44% Of species have at least 1 coastally dependent stage.

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Results – Temporal Trends

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Results – Evidence of Impacts

Of life-history stages utilising coastal habitats, 69% (34/49) have documented evidence of negative impact of human activity. At the species level (c.f. life-history stages), 92% (22/24) were impacted by human pressures in at least one of their life-stages.

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Conclusions

• 44% of ICES Advice Species
• 75% of ICES Landings
• 92% Impacted

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Questions?