History, ecology and trends for artificial reefs of the Ligurian sea, Italy

Rélini, Giulio; Relini, M.; Palandri, G.; Merello, Simone; Beccornia, E.

doi:10.1007/978-1-4020-6156-1_17

Cited by 11 publications

(17 citation statements)

References 16 publications

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“…Relini et al (2007) showed in Liguria that wooden barges and shipwrecks were less appropriate for colonization, in agreement with video shot on the Cycnus. Iron structures of wrecks are usually damaged by corrosion, which first attacks the thinnest parts (Relini et al, 2007) and at the end, may contribute to the collapse of the whole structure (Bell et al, 1997). This damage is enhanced by bubbles emitted by SCUBA opencircuit apparatus and by chains used to anchor diving buoys.…”

Section: Figuresupporting

confidence: 81%

“…Experiments comparing natural habitats and artificial substrata such as concrete, rocks, ceramic, and earthenware material demonstrated that species recruitment and survival were strictly dependent on the substrate-type (Burt et al, 2009;Antoniadou et al, 2010). Relini et al (2007) showed in Liguria that wooden barges and shipwrecks were less appropriate for colonization, in agreement with video shot on the Cycnus. Iron structures of wrecks are usually damaged by corrosion, which first attacks the thinnest parts (Relini et al, 2007) and at the end, may contribute to the collapse of the whole structure (Bell et al, 1997).…”

Section: Figurementioning

confidence: 50%

“…Their importance in the Ligurian Sea was previously highlighted by Relini et al (2007). The author analyzed 15 years of benthos colonization on artificial reefs along the Ligurian coast concluding that the concrete blocks acted in the same way as natural, rocky bottoms.…”

Section: Tablementioning

confidence: 98%

“…The Liguria region is dominated by a large and well-defined anticlockwise circulation and by biodiversity hot spots promoted by the presence of a coralligenous community, usually growing below 25 m in depth (Cattaneo-Vietti et al, 2010). With the purpose of analyzing only mature communities, wrecks that sank 30 or more years ago (Perkon-Finkel et al, 2006;Relini et al, 2007) were selected for this study. Among these artificial structures, only those lying between 30 and 65 m in depth were taken into account to reduce the impact caused by wave action and the seasonal thermocline.…”

Section: Study Sitementioning

confidence: 99%

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Wrecks on the Bottom: Useful, Ecological Sentinels?

Peirano¹

2013

mar technol soc j

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A B S T R A C TWrecks play an important role in enhancing marine biodiversity. SCUBA diving video-samplings were performed on eight wrecks, including seven shipwrecks and a sunken airplane, scattered over 180 km along the Ligurian coastline in the northwestern Mediterranean Sea, in water depths of 30-65 m. Differences in composition of macrobenthic communities were found to be related to the bottom sedimentology and the composition and geometry of the investigated structures. The iron, flat, and even substrata of shipwrecks were dominated by Bivalvia (Ostrea edulis) and Anthozoa (Corynactis viridis), whereas the aluminum, cage-like structure of the airplane was dominated by massive sponges and bryozoans. Furthermore, abundances of some macrobenthic invertebrates were greater on the wrecks than those observed on natural, rocky substrates. Because of the increasing popularity of use of video and photo digital apparatuses among recreational divers, combined with wreck resistance to corrosion, artificial geometries and available surfaces that facilitate species' settlement and growth, data from wrecks consisting of images and related metadata (depth, date, water temperature, etc.) could provide a new opportunity for monitoring Mediterranean marine biodiversity.

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Section: Figuresupporting

confidence: 81%

Section: Figurementioning

confidence: 50%

Section: Tablementioning

confidence: 98%

Section: Study Sitementioning

confidence: 99%

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Wrecks on the Bottom: Useful, Ecological Sentinels?

Peirano¹

2013

mar technol soc j

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“…Few studies on artificial reefs, however, have addressed temporal changes of fishes attracted over extended (i.e. a decade or more) periods (Spanier, ; Relini et al., , ; Baine and Side, ; Santos and Monteiro, ; Santos et al., ). Consequently, fishery resource variations with the age of an artificial reef are barely known, especially in the Neotropics, despite their potential to improve inshore artisanal fisheries in the overall low productivity of Brazilian coastal waters (Amaral and Jablonski, ).…”

Section: Introductionmentioning

confidence: 99%

Long-term changes of fish assemblages associated with artificial reefs off the northern coast of Rio de Janeiro, Brazil

Santos

Zalmon

2015

J. Appl. Ichthyol.

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Summary Changes in fish assemblages associated with artificial reefs 5‐km offshore (Southeast Brazil) were assessed. Bottom gillnets were used for 1 month per year for up to 15 years after the artificial reef had been established. Totals of 552 fishes were caught, with Chloroscombrus chrysurus and Conodon nobilis the dominant species and Scianidae the richest family. Species richness, abundance and biomass varied significantly with time, increasing gradually for several years but decreasing thereafter. The same unimodal response was recorded for abundance and biomass of planktivorous and invertivorous fishes and for Haemulidae, suggesting that this family accounted for most of the temporal variations recorded per species richness and CPUE values. The abundance and biomass of sharks decreased gradually after the first year but increased in the 15th year. While these variables increased steadily toward an apparent stable level in the later part of the study for Scianidae and Ariidae, they decreased linearly with time for Carangidae. Fish use of the artificial reefs may be modulated by a continuous species turnover, since there was no single species recurring throughout the surveys. This study stresses the importance of long‐term assessments of artificial marine reefs in order to incorporate the effects of successional patterns of fish colonization into management actions.

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If You Build It, Will They Come? An Environmental DNA Assessment of Fish Assemblages on Artificial Reefs in the Northern Gulf of Mexico

2022

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Globally, estuarine and marine fisheries have declined over the past century, and a variety of approaches have been employed in an attempt to improve fisheries, including the development of protected areas, implementation of catch regulations, hatchery stocking, and habitat augmentation. The focus of this study was to assess the impact of the introduction of artificial reefs on the fish assemblages in the northern Gulf of Mexico (nGOM). Unfortunately, assessing the success of artificial reefs has been problematic due to the high turbidity of the region and the difficulty of using traditional sampling gears to assess species diversity at reefs. To accomplish this, we gathered environmental DNA metabarcode data (12S) to assess the impact of reef age (1-19 years), construction material (limestone, concrete, shell, and oil and gas), and season on the fish assemblages at nine artificial reefs in the nGOM. The results indicate higher species richness at reefs versus paired control sites as well as differences between seasons, reef materials, and reef positions. Our results suggest that this technique is a viable method of monitoring ray-finned fish species on artificial reefs and can provide baseline information on the fish assemblages associated with artificial reefs in the nGOM.

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History, ecology and trends for artificial reefs of the Ligurian sea, Italy

Cited by 11 publications

References 16 publications

Wrecks on the Bottom: Useful, Ecological Sentinels?

Wrecks on the Bottom: Useful, Ecological Sentinels?

Long-term changes of fish assemblages associated with artificial reefs off the northern coast of Rio de Janeiro, Brazil

If You Build It, Will They Come? An Environmental DNA Assessment of Fish Assemblages on Artificial Reefs in the Northern Gulf of Mexico

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