| More

Fish assemblages along the coasts of Tunisia: a baseline study to assess the effectiveness of future Marine Protected Areas

Views: 356 Downloads: 172
EMNA BEN LAMINE, PAOLO GUIDETTI, MOHAMED SALAH ROMDHANE, PATRICE FRANCOUR
EMNA BEN LAMINE, PAOLO GUIDETTI, MOHAMED SALAH ROMDHANE, PATRICE FRANCOUR

Abstract


The present study investigated coastal fish assemblages, using Underwater Visual Census (UVC) transects, in Tunisia (south Mediterranean basin). The rationale behind this work is to get i) a suggestive evidence about the status of fish assemblages, and ii) baseline data at 3 locations in Tunisia where 3 MPAs will be established, before the implementation of protection measures. At each location, we used a sampling design where fish censuses were performed in two types of zone: zones that will be inside MPAs, and zones that will remain outside. On the whole, 49 taxa belonging to 19 families were censused. Data reveal clear symptoms of overfishing, especially in terms of dominance of small- and medium-sized individuals of commercially relevant species. Our analyses, moreover, did not show any significant difference in whole fish assemblage structures (considering both density and biomass), patterns of average species richness, total fish density and biomass, density and biomass of different trophic categories of fishes, size distribution of commercially relevant species, between future-protected and unprotected zones. Overall, results suggest that 1) current fish assemblages at the three studied locations are likely to be seriously impacted by fishing activities, and 2) these data could be used as reliable baselines to assess the effectiveness of protection measures within the MPAs that will be established in the future. Our study is the first in Tunisia, and in North African coasts, that assessed distribution patterns of coastal fish assemblages by means of UVC, using a formal spatially replicated sampling design for resource management.


Keywords


Underwater visual census (UVC); Marine Protected Areas; South Mediterranean; Tunisia

Full Text:

PDF SUPPL.FILE

References


Aburto-Oropeza, O., Ezcurra, E., Moxley, J., Sánchez-Rodríguez, A., Mascareñas-Osorio, I. et al., 2015. A framework to assess the health of rocky reefs linking geomorphology, community assemblage, and fish biomass. Ecological Indicators, 52, 353-361. DOI : 10.1016/j.ecolind.2014.12.006.

Anderson, M.J., 2001. Permutation tests for univariate or multivariate analysis of variance and regression. Canadian Journal of Fisheries and Aquatic Sciences, 58, 626-639.

Bell, J.D., Harmelin-Vivien, M., 1983. Fish fauna of French Mediterranean Posidonia oceanica seagrass meadows-2. Feeding habits. Tethis, (11), 1-14 pp.

Bergseth, B.J., Williamson, D.H., Russ, G.R., Sutton, S.G., Cinner, J.E., 2017. A social-ecological approach to assessing and managing poaching by recreational fishers. Frontiers in Ecology and the Environment, 15, 67-73. doi:10.1002/fee.1457

Bianchi, C.N., Morri, C., Chiantore, M., Montefalcone, M., Parravicini, V. et al., 2012. Mediterranean Sea biodiversity between the legacy from the past and a future of change. p. 1–55. In: Life in the Mediterranean Sea: a look at habitat changes. Stambler N. (Ed.). New York, NY: Nova Science Publishers,

Bonaldo, R.M., Pires, M.M., Junior, P.R.G., Hoey, A.S., Hay, M.E., 2017. Small Marine Protected Areas in Fiji Provide Refuge for Reef Fish Assemblages, Feeding Groups, and Corals. PloS ONE, 12, e0170638.

Caldwell, Z.R., Zgliczynski, B.J., Williams, G.J., Sandin, S.A., 2016. Reef fish survey techniques: assessing the potential for standardizing methodologies. PLoS ONE, 11 (4), e0153066. doi:10.1371/journal.pone.0153066

CAR/ASP - PNUE/PAM, 2014. Elaboration d’un Plan de Gestion pour l’Aire Marine et Côtière Protégée des îles Kuriat (Tunisie) - Phase 1: Bilan et Diagnostic. Par Thetis-Cabinet Sami Ben Haj. Ed. CAR/ASP - Projet MedMPAnet, Tunis: 72 p + annexes

CAR/ASP - PNUE/PAM, 2015. Elaboration d’un Plan de Gestion pour l’Aire Marine et Côtière Protégée des îles Kuriat (Tunisie) - Phase 2: Gestion de l’AMCP, définition des objectifs et planification des opérations. Par Thetis-Cabinet Sami Ben Haj. Ed. CAR/ASP - Projet MedMPAnet, Tunis: 56 p + annexes

Coll, M., Piroddi, C., Steenbeek, J., Kaschner, K., Ben Rais Lasram, F. et al., 2010. The Biodiversity of the Mediterranean Sea: Estimates, Patterns, and Threats. PLoS ONE, 5 (8), e11842. Doi:10.1371/journal.pone.0011842

Di Franco, A., Bussotti, S., Navone, A., Panzalis, P., Guidetti, P., 2009. Evaluating effects of total and partial restrictions to fishing on Mediterranean rocky-reef fish assemblages. Marine Ecology Progress Series 387, 275-285. doi:10.3354/meps08051

Di Franco, A., Thiriet, P., Di Carlo, G., Dimitriadis, C., Francour, P. et al., 2016. Five key attributes can increase marine protected areas performance for small-scale fisheries management. Scientific Reports, 6, 38135. doi:10.1038/srep38135

Edgar, G.J., Stuart-Smith, R.D., Willis, T.J., Kininmonth, S., Baker, S.C. et al., 2014. Global conservation outcomes depend on marine protected areas with five key features. Nature, 506, 216-220. doi:10.1038/nature13022

Froese, R., Pauly, D. (Eds), 2017. FishBase. World Wide Web electronic publication. www.fishbase.org, (06/2017 )

García-Charton, J.A., Williams, I.D., Ruzafa, A.P., Milazzo, M., Chemello, R. et al., 2000. Evaluating the ecological effects of Mediterranean marine protected areas: habitat, scale and the natural variability of ecosystems. Environmental Conservation, 27, 159-178.

García-Charton, J.A., Pérez-Ruzafa, Á., 2001. Spatial pattern and the habitat structure of a Mediterranean rocky reef fish local assemblage. Marine Biology, 138, 917–934. doi:10.1007/s002270000524

Giakoumi, S., Scianna, C., Plass-Johnson, J., Micheli, F., Grorud-Colvert, K. et al., 2017. Ecological effects of full and partial protection in the crowded Mediterranean Sea: a regional meta-analysis. Scientific Reports, 7. doi:10.1038/s41598-017-08850-w

Guidetti, P., 2002. The importance of experimental design in detecting the effects of protection measures on fish in Mediterranean MPAs. Aquatic Conservation: Marine and Freshwater Ecosystems, 12, 619-634.

Guidetti, P., Sala, E., 2007. Community-wide effects of marine reserves in the Mediterranean Sea. Marine Ecology Progress Series, 335, 43-56.

Guidetti, P., Baiata, P., Ballesteros, E., Di Franco, A., Hereu, B. et al., 2014. Large-Scale Assessment of Mediterranean Marine Protected Areas Effects on Fish Assemblages. PLoS ONE, 9, e91841. doi:10.1371/journal.pone.0091841

Halouani, G., Ben Rais Lasram, F., Khalfallah, M., Zeller, D., Pauly, D., 2015. Reconstruction of Marine Ficheries Catches of Tunisia (1950-2010). Working Paper Series. Fisheries Centre. The University of British Columbia, 12 p.

Harmelin-Vivien, M., Harmelin, J., Chauvet, C., Duval, C., Galzin, R. et al., 1985. Evaluation visuelle des peuplements et populations de poissons: méthodes et problèmes. Revue d’ écologie, 40, 467-539.

Harmelin-vivien, M., Le Direach, L., Bayle-Sempere, J., Charbonnel, E., Garcia-Charton, J. et al., 2008. Gradients of abundance and biomass across reserve boundaries in six Mediterranean marine protected areas: Evidence of fish spillover? Biological Conservation, 141, 1829-1839. doi:10.1016/j.biocon.2008.04.029

Huntington, B.E., Karnauskas, M., Babcock, E.A., Lirman, D., 2010. Untangling Natural Seascape Variation from Marine Reserve Effects Using a Landscape Approach. PLoS ONE, 5, e12327. doi:10.1371/journal.pone.0012327

IUCN, 2017. The IUCN Red List of Threatened Species. Version 2017-1. . Downloaded on 12 May 2017.

La Mesa, G., Salvati, E., Agnesi, S., Tunesi, L., 2017. Assessment of coastal fish assemblages before the establishment of a new marine protected area in central Mediterranean: its role in formulating zoning proposal. Mediterranean Marine Science, 18, 11. doi:10.12681/mms.1788

McClanahan, T.R., Mangi, S., 2000. Spillover of Exploitable Fishes from a Marine Park and Its Effect on the Adjacent Fishery. Ecological Applications, 10, 1792-1805. doi:10.1890/1051-0761(2000)010[1792:SOEFFA]2.0.CO2

Mellin, C., Aaron MacNeil, M., Cheal, A.J., Emslie, M.J., Julian Caley, M., 2016. Marine protected areas increase resilience among coral reef communities. Ecological Letters, 19, 629-637. doi:10.1111/ele.12598

Pauly, D., Christensen, V., Dalsgaard, J., Froese, R., Torres, F. Jr., 1998. Fishing down marine food webs. Science, 279, 860-863.

Partnership for Interdisciplinary Studies of Coastal Oceans and University of Nice Sophia Antipolis. 2016. The Science of Marine Protected Areas (3rd edition, Mediterranean). www.piscoweb.org. 22 pages.

Pelletier, D., Claudet, J., Ferraris, J., Benedetti-Cecchi, L., Garcìa-Charton, J.A., 2008. Models and indicators for assessing conservation and fisheries-related effects of marine protected areas. Canadian Journal of Fisheries and Aquatic Sciences, 65, 765-779. doi:10.1139/f08-026

Prato, G, Thiriet, P, Di Franco, A, Francour, P., 2017. Enhancing fish Underwater Visual Census to move forward assessment of fish assemblages: An application in three Mediterranean Marine Protected Areas. PLoS ONE, 12 (6), e0178511. doi.org/10.1371/journal.pone.0178511

Sala, E., Ballesteros, E., Dendrinos, P., Di Franco, A., Ferretti, F. et al., 2012. The Structure of Mediterranean Rocky Reef Ecosystems across Environmental and Human Gradients, and Conservation Implications. PLoS ONE, 7, e32742. doi:10.1371/journal.pone.0032742

Sala, E., 2004. The Past and Present Topology and Structure of Mediterranean Subtidal Rocky-shore Food Webs. Ecosystems, 7, 333-340. doi:10.1007/s10021-003-0241-x

Sandin, S.A., Smith, J.E., DeMartini, E.E., Dinsdale, E.A., Donner, S.D. et al., 2008. Baselines and Degradation of Coral Reefs in the Northern Line Islands. PLoS ONE, 3, e1548. doi:10.1371/journal.pone.0001548

Seytre, C., Francour, P., 2014. A long-term survey of Posidonia oceanica fish assemblages in a Mediterranean Marine Protected Area: emphasis on stability and no-take area effectiveness. Marine and Freshwater Research, 65, 244. doi:10.1071/MF13080


Refbacks

  • There are currently no refbacks.