ORCID Profile
0000-0002-1411-0126
Current Organisation
Universidade do Algarve
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Publisher: Editorial CSIC
Date: 14-06-2017
Abstract: Understanding the ecological role that artificial structures might play on nearshore fish assemblages requires the collection of accurate and reliable data through efficient s ling techniques. In this work, differences in the composition and structure of fish assemblages between the inner and outer sides of three marinas located in the temperate northern-eastern Atlantic Ocean were tested using three complementary s ling techniques: underwater visual censuses (UVC), baited cameras (BCs) and fish traps (FTs). UVCs and BCs recorded a comparable number and relative abundance of species, which in turn were much greater than those recorded by FTs. This finding supports the use of UVCs and BCs over FTs for broad ecologically studies, especially when dealing with structurally complex habitats such as artificial structures. We found differences in fish assemblage structure between the inner and outer sides of marinas, independently of the s ling method. Four small-sized species (Similiparma lurida, Thalassoma pavo, Sarpa salpa and Symphodus roissali) associated with structurally complex vegetated habitats dominated, in terms of abundance, the outer sides of marinas Diplodus vulgaris, Diplodus sargus and Gobius niger, species with high ecological plasticity in habitat requirements, dominated the inner sides of marinas. The information provided in this study is of great interest for developing sound monitoring programmes to ascertain the effects of artificial structures on fish communities.
Publisher: Springer Science and Business Media LLC
Date: 20-06-2013
Publisher: Wiley
Date: 02-08-2018
DOI: 10.1002/FEE.1934
Publisher: Wiley
Date: 30-05-2017
DOI: 10.1002/ECE3.2979
Publisher: MDPI AG
Date: 08-10-2022
DOI: 10.3390/D14100849
Abstract: Monitoring the ecological status of marine coastal lagoons requires the integration of multiple indices. However, the efficacy of monitoring programs is complicated by the erse array of habitats that conform coastal lagoons. In this study, we compared four s ling methods (25-m and 50-m beach seines, beam trawl and Riley push net) in the Ria Formosa coastal lagoon (South Portugal) for assessing fish assemblage and ersity. We compared species richness and assemblage structure with species accumulation curves and multivariate analysis, and assessed ersity patterns using taxonomic, phylogenetic and functional ersity indices. Variation in fish assemblage structure was mostly explained by gear type, and almost all ersity metrics varied not only according to s ling method but also depending on habitat characteristics and season. Based on operational costs and ersity patterns captured by each gear, we conclude that the combined use of 25-m beach seine and beam trawl is the preferred approach. The proposed methodology will provide the data necessary for assessment of ecological status of coastal lagoons.
Publisher: Elsevier BV
Date: 07-2021
Publisher: Springer Science and Business Media LLC
Date: 11-10-2014
Publisher: Elsevier BV
Date: 07-2014
Location: United States of America
No related grants have been discovered for Karim Erzini.