Changes in benthic fish assemblages as a consequence of coastal works in a coastal lagoon: The Mar Menor (Spain, Western Mediterranean)

2006 ◽  
Vol 53 (1-4) ◽  
pp. 107-120 ◽  
Author(s):  
A. Pérez-Ruzafa ◽  
J.A. Garcı́a-Charton ◽  
E. Barcala ◽  
C. Marcos
2013 ◽  
Vol 80 (1) ◽  
pp. 104-116 ◽  
Author(s):  
David Verdiell-Cubedo ◽  
Mar Torralva ◽  
Ana Ruiz-Navarro ◽  
Francisco J. Oliva-Paterna

Limnetica ◽  
2007 ◽  
Vol 26 (2) ◽  
pp. 341-350
Author(s):  
David Verdiell-Cubedo ◽  
Francisco José Oliva-Paterna ◽  
Mar Torralva-Forero

Author(s):  
Juan Soria ◽  
Gema Caniego ◽  
Nuria Hernandez-Saez ◽  
Jose Antonio Dominguez ◽  
Manuel Erena

The Mar Menor is a Spanish coastal lagoon of great ecological and economic interest. The agricultural and tourist activities developed in the surroundings of the lagoon, together with the modifications in its channels of connection with the Mediterranean Sea, have notably affected the quality of its waters, which is altering the natural balance of the ecosystem. In this work, an analysis of the density of phytoplankton present in the lagoon between the months of May to December 2017 has been carried out. There, it has been a notable increase in the density of organisms in post-summer samplings, following the recording of higher temperatures, and the presence of Chlorophyceae, Cyanophyceae, Chrysophyceae and nanoplanktonic Cryptophyceae stands out. The data collected indicate a significant increase in the eutrophication process of the lagoon that requires the development of management plans to reduce agricultural discharges and promote the recovery of the lagoon and its native species.


2014 ◽  
Vol 36 (1) ◽  
pp. 104-117 ◽  
Author(s):  
Daniela Giordano ◽  
Adriana Profeta ◽  
Barbara Busalacchi ◽  
Roberta Minutoli ◽  
Letterio Guglielmo ◽  
...  

Author(s):  
Montserrat Demestre ◽  
Pilar Sánchez ◽  
Pere Abelló

Continental shelf and upper slope fish communities were studied along the Catalan coast based on 66 experimental bottom otter trawls. A total of 79 demersal fish species were studied by means of cluster analysis and multi-dimensional scaling (MDS) ordination for community structure. Analysis revealed the existence of five major location clusters. Similarity percentage analysis (SIMPER) was determined by comparing the dissimilarity between two groups of samples using the discriminating species. Geomorphological characteristics, bottom substratum and depth showed direct influences on species assemblages. High correlation between the biotic data samples and depth was observed. The fish species assemblages identified five main demersal fish associations which corresponded with the five location clusters and with five benthic sediments (mud of the upper slope, sand and gravel, mud of the shelf, muddy-sand and sand with rocky outcrops).


Limnetica ◽  
2022 ◽  
Vol 41 (1) ◽  
pp. 101-106
Author(s):  
Adrián Guerrero-Gómez ◽  
Antonio Zamora-López ◽  
Antonio Guillén-Beltrán ◽  
José M. Zamora-Marín ◽  
Ana Sánchez-Pérez ◽  
...  

2019 ◽  
Vol 70 (6) ◽  
pp. 870 ◽  
Author(s):  
Thomas M. Clarke ◽  
Sasha K. Whitmarsh ◽  
Peter G. Fairweather ◽  
Charlie Huveneers

Baited remote underwater video stations (BRUVS) are increasing in popularity as non-invasive and fishery-independent tools for assessing fish assemblages. Although most BRUVS studies have focused on benthic fish communities, recent studies also use BRUVS to examine the comparatively undersampled pelagic communities. However, the propensities of benthic BRUVS to detect pelagic fishes and, likewise, pelagic BRUVS to detect demersal fishes are unknown. This study simultaneously used benthic and pelagic BRUVS deployed either separately (single) or in combination to determine assemblages of demersal and pelagic species at three contrasting sites within temperate South Australia. Assemblages observed by benthic v. pelagic BRUVS differed significantly at all sites, including one as shallow as 7m deep, but there were no significant differences in assemblages observed between BRUVS of the same position (i.e. pelagic or benthic) when BRUVS were deployed as single units or in combination. This study reveals the limitations of using only benthic or pelagic BRUVS, and highlights the necessity for both BRUVS positions to be used together to ensure that a comprehensive representation of entire fish assemblages throughout the water column can be obtained.


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