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Donázar-Aramendía I, Sánchez-Moyano JE, García-Asencio I, Miró JM, Megina C, García-Gómez JC. Impact of dredged-material disposal on soft-bottom communities in a recurrent marine dumping area near to Guadalquivir estuary, Spain. MARINE ENVIRONMENTAL RESEARCH 2018; 139:64-78. [PMID: 29773315 DOI: 10.1016/j.marenvres.2018.05.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/06/2018] [Revised: 04/25/2018] [Accepted: 05/04/2018] [Indexed: 06/08/2023]
Abstract
This study assesses the effects of dredged material disposal in a recurrent marine dump near the Guadalquivir Estuary (south-western Spain). We compared the changes observed with two reference areas combining a classical ecological approach with new stable isotope techniques to analyse trophic structure. We detected permanent changes in the macrofaunal community structure as well as in the diversity and biotic indices applied, which showed higher values in the disposal area. The community in the marine dump had lost the natural temporal variations observed in the reference areas. These effects could be due to the last disposal event carried out in the summer of 2015 or to the recurrent disposals since 2010. Despite the structural changes shown by the benthic community, these impacts were not reflected in the food web structure of the marine dump. Our results confirm the high variability of disposal disturbances. Hence, we recommend performing studies in every disposal event, merging different functional and structural approaches.
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Affiliation(s)
- I Donázar-Aramendía
- Laboratorio Biología Marina, Seville Aquarium R+D+I Biological Research Area, Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain.
| | - J E Sánchez-Moyano
- Laboratorio Biología Marina, Seville Aquarium R+D+I Biological Research Area, Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
| | - I García-Asencio
- Laboratorio Biología Marina, Seville Aquarium R+D+I Biological Research Area, Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
| | - J M Miró
- Laboratorio Biología Marina, Seville Aquarium R+D+I Biological Research Area, Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
| | - C Megina
- Laboratorio Biología Marina, Seville Aquarium R+D+I Biological Research Area, Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
| | - J C García-Gómez
- Laboratorio Biología Marina, Seville Aquarium R+D+I Biological Research Area, Dpto. Zoología, Facultad de Biología, Universidad de Sevilla, Avd. Reina Mercedes 6, 41012, Sevilla, Spain
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Monroy-Velázquez LV, Rodríguez-Martínez RE, Alvarez F. Taxonomic richness and abundance of cryptic peracarid crustaceans in the Puerto Morelos Reef National Park, Mexico. PeerJ 2017. [PMID: 28630800 PMCID: PMC5474090 DOI: 10.7717/peerj.3411] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND AND AIMS Cryptic peracarids are an important component of the coral reef fauna in terms of diversity and abundance, yet they have been poorly studied. The aim of this study was to evaluate the taxonomic richness and abundance of cryptic peracarids in coral rubble in the Puerto Morelos Reef National Park, Mexico (PMRNP), and their relationship with depth. METHODS Three reef sites were selected: (1) Bonanza, (2) Bocana, and (3) Jardines. At each site six kilograms of coral rubble were collected over four sampling periods at three depths: 3 m (back-reef), 6-8 m (fore-reef), and 10-12 m (fore-reef). RESULTS A total of 8,887 peracarid crustaceans belonging to 200 taxa distributed over five orders and 63 families was obtained; 70% of the taxa were identified to species and 25% to genus level. Fifty species of those collected represent new records for the Mexican Caribbean Sea. Isopoda was the most speciose order while Tanaidacea was the most abundant. DISCUSSION Cryptic peracarid taxonomic richness and abundance were related to depth with higher values of both parameters being found in the shallow (3 m) back-reef, possibly due to a higher reef development and a greater accumulation of coral rubble produced during hurricanes. Peracarid data obtained in the present study can be used as a baseline for future monitoring programs in the PMRNP.
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Affiliation(s)
- Luz Veronica Monroy-Velázquez
- Colección Nacional de Crustáceos, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México, México
| | - Rosa Elisa Rodríguez-Martínez
- Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Puerto Morelos, Quintana Roo, México
| | - Fernando Alvarez
- Colección Nacional de Crustáceos, Instituto de Biología, Universidad Nacional Autónoma de México, Ciudad de México, México
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Dauvin JC, Bakalem A, Baffreau A, Delecrin C, Bellan G, Lardicci C, Balestri E, Sardá R, Grimes S. The well sorted fine sand community from the western Mediterranean Sea: A resistant and resilient marine habitat under diverse human pressures. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2017; 224:336-351. [PMID: 28238365 DOI: 10.1016/j.envpol.2017.02.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Revised: 02/02/2017] [Accepted: 02/04/2017] [Indexed: 06/06/2023]
Abstract
The Biocoenosis of Well Sorted Fine Sands (WSFS) (SFBC, Sables Fins Bien Calibrés in French) is a Mediterranean community very well delimited by bathymetry (2-25 m) and sedimentology (>90% of fine sand) occurring in zones with relatively strong hydrodynamics. In this study focused on sites located along the Algerian, French, Italian and Spanish coasts of the Western Basin of the Mediterranean Sea (WBMS) we aim to compare the structure, ecological status and diversity of the macrofauna of the WSFS and examine the effects of recent human pressures on the state of this shallow macrobenthic community. We assess the ecological status and functioning of these WSFS using three categories of benthic indices: a) five indices based on classification of species into ecological groups, AMBI, BO2A, BPOFA, IQ and IP, b) the ITI index based on classification of species in trophic groups, and c) the Shannon H' index, and the Biological Traits Analysis (BTA), which is an alternative method to relative taxon composition analysis and integrative indices. Cluster analyses show that each zone show a particular taxonomic richness and dominant species. The seven benthic indices reveal that the macrobenthos of the WSFS of the four coastal zones show good or high Quality Status, except for one location on the Algerian coast (the Djendjen site) in 1997. BTA highlights the presence of three groups of species: 1) typical characteristic species; 2) indicator species of enrichment of fine particles and organic matter, and 3) coarse sand species which are accessorily found on fine sand. Finally, the WSFS which are naturally subject to regular natural physical perturbations show a high resilience after human pressures but are very sensitive to changes in the input of organic matter.
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Affiliation(s)
- Jean-Claude Dauvin
- Normandie Univ, France, UNICAEN, UNIROUEN, CNRS UMR 6143 M2C, Laboratoire Morphodynamique Continentale et Côtière, 24 rue des Tilleuls, 14000 Caen, France.
| | - Ali Bakalem
- Ecole Nationale Supérieure Agronomique (ENSA), Avenue Hassan Badi, 16200, El Harrach, Algiers, Algeria
| | - Alexandrine Baffreau
- Normandie Univ, France, UNICAEN, UNIROUEN, CNRS UMR 6143 M2C, Laboratoire Morphodynamique Continentale et Côtière, 24 rue des Tilleuls, 14000 Caen, France
| | - Claire Delecrin
- Normandie Univ, France, UNICAEN, UNIROUEN, CNRS UMR 6143 M2C, Laboratoire Morphodynamique Continentale et Côtière, 24 rue des Tilleuls, 14000 Caen, France
| | - Gérard Bellan
- Université d'Aix-Marseille, IMBE, Station Marine d'Endoume, Rue Batterie des Lions, 13007, Marseille, France
| | - Claudio Lardicci
- Università di Pisa, Dipartimento di Biologia, Via Derna, 56126, Pisa, Italy
| | - Elena Balestri
- Università di Pisa, Dipartimento di Biologia, Via Derna, 56126, Pisa, Italy
| | - Rafael Sardá
- Centre d'Estudis, Avançats de Blanes, Consejo Superior de Investigaciones Cientificas, Carrer d'accés a la Cala Sant Fransesc, Blanes 17300, Spain
| | - Samir Grimes
- Ecole Nationale Supérieure des Sciences de la Mer et de l'Aménagement du Littoral (ENSSMAL), BP 19, Campus universitaire de Dely Brahim, Bois des Cars, Algiers, Algeria
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de-la-Ossa-Carretero JA, Del-Pilar-Ruso Y, Giménez-Casalduero F, Sánchez-Lizaso JL. Assessing reliable indicators to sewage pollution in coastal soft-bottom communities. ENVIRONMENTAL MONITORING AND ASSESSMENT 2012; 184:2133-2149. [PMID: 21617967 DOI: 10.1007/s10661-011-2105-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/02/2010] [Accepted: 04/26/2011] [Indexed: 05/30/2023]
Abstract
Physicochemical characteristics of sediment and benthic communities were studied in the proximity of seven sewage outfalls with differences in flow and wastewater treatment in the Western Mediterranean Sea. Redox potential was the only abiotic parameter which showed a pattern related with distance to outfalls, whereas granulometry, percentage of organic matter, metal concentrations or pH did not show changes related with outfall presence. Benthic community analysis proved to be the most suitable monitoring tool. The results showed that the highest impacted stations corresponded with those closest to outfall with the highest flow and only pre-treatment, whilst a decrease of this tendency was detected in the locations where secondary treatment takes place. Meta-analysis showed a decrease of amphipods and tanaids abundance as well as redox potential, as the indicators with the clearest response to sewage presence.
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