A preliminary study on the effects of oyster culturing structures on birds in a sheltered Irish estuary

Hilgerloh, Gudrun; Halloran, John O’; Kelly, Tom; Burnell, Gavin

doi:10.1007/978-94-010-0434-3_17

Cited by 10 publications

(24 citation statements)

References 8 publications

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“…Overall, the authors suggested that oyster aquaculture led to a net decrease in the abundance of shorebirds in the area studied. Species-and site-specific variation in the abundance of shorebirds between oyster trestle and reference areas have also been observed in Ireland (Hilgerloh et al 2001;Gittings & O'Donoghue 2012).…”

Section: Interactions With Birds Marine Mammals and Other Nonfisherimentioning

confidence: 89%

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Attraction and repulsion of mobile wild organisms to finfish and shellfish aquaculture: a review

Callier

Byron

Bengtson

et al. 2017

Reviews in Aquaculture

118

130

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Knowledge of aquaculture–environment interactions is essential for the development of a sustainable aquaculture industry and efficient marine spatial planning. The effects of fish and shellfish farming on sessile wild populations, particularly infauna, have been studied intensively. Mobile fauna, including crustaceans, fish, birds and marine mammals, also interact with aquaculture operations, but the interactions are more complex and these animals may be attracted to (attraction) or show an aversion to (repulsion) farm operations with various degrees of effects. This review outlines the main mechanisms and effects of attraction and repulsion of wild animals to/from marine finfish cage and bivalve aquaculture, with a focus on effects on fisheries‐related species. Effects considered in this review include those related to the provision of physical structure (farm infrastructure acting as fish aggregating devices (FADs) or artificial reefs (ARs), the provision of food (e.g. farmed animals, waste feed and faeces, fouling organisms associated with farm structures) and some farm activities (e.g. boating, cleaning). The reviews show that the distribution of mobile organisms associated with farming structures varies over various spatial (vertical and horizontal) and temporal scales (season, feeding time, day/night period). Attraction/repulsion mechanisms have a variety of direct and indirect effects on wild organisms at the level of individuals and populations and may have implication for the management of fisheries species and the ecosystem in the context of marine spatial planning. This review revealed considerable uncertainties regarding the long‐term and ecosystem‐wide consequences of these interactions. The use of modelling may help better understand consequences, but long‐term studies are necessary to better elucidate effects.

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Section: Interactions With Birds Marine Mammals and Other Nonfisherimentioning

confidence: 89%

“…Species‐ and site‐specific variation in the abundance of shorebirds between oyster trestle and reference areas have also been observed in Ireland (Hilgerloh et al . ; Gittings & O'Donoghue ).…”

Section: Interaction Between Shellfish Farms and Wild Populationsmentioning

confidence: 99%

Attraction and repulsion of mobile wild organisms to finfish and shellfish aquaculture: a review

Callier

Byron

Bengtson

et al. 2017

Reviews in Aquaculture

118

130

View full text Add to dashboard Cite

show abstract

“…Alternatively, oysterculture could positively impact shorebirds by increasing the availability of benthic or other prey taxa (Escapa et al 2004), or by the cultured oysters (or the invertebrate species using oyster racks) serving as a prey resource themselves (Caldow et al 2003, Žydelis et al 2009). Indeed, some studies have shown increased shorebird foraging around intertidal aquaculture operations (Hilgerloh et al 2001, Connolly and Colwell 2005, Lehnen and Krementz 2013). Finally, oysterculture may be considered a neutral industry whereby habitat use and feeding rates are not affected (Hilgerloh et al 2001).…”

Section: Introductionmentioning

confidence: 99%

Assessing conservation conflict: Does intertidal oyster aquaculture inhibit foraging behavior of migratory shorebirds?

et al. 2020

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“…As such, the environmental consequences of shellfish aquaculture are just beginning to be considered. Concerns related to shellfish aquaculture have centred around the introduction of non-indigenous species, habitat alteration, changes to community structure or function (Grant et al, 1995;Simenstad and Fresh, 1995;Kaiser et al, 1998;Bartoli et al, 2001;Naylor et al, 2001;Stenton-Dozey et al, 2001;Beadman et al, 2004;Bendell-Young, 2006), and effects on bird and mammal populations (Price and Nickum, 1995;Hilgerloh et al, 2001;Markowitz et al, 2004;Roycroft et al, 2004;Watson-Capps and Mann, 2004).…”

Section: Introductionmentioning

confidence: 99%

“…However, only a relatively small number of studies have evaluated the effects of shellfish aquaculture on birds. To date, bird responses to the presence of shellfish aquaculture structures have been shown to vary, with the abundance and density of some species increasing in association with aquaculture and other species decreasing (Hilgerloh et al, 2001;Connolly and Colwell, 2005). Most studies have described the effects of shellfish aquaculture as being neutral (Roycroft et al, 2004;Ž ydelis et al, 2006) or even beneficial (Caldow et al, 2003;Kirk et al, 2007).…”

Section: Introductionmentioning

confidence: 99%

Effects of off‐bottom shellfish aquaculture on winter habitat use by molluscivorous sea ducks

Žydelis

Esler

Kirk

et al. 2008

Aquatic Conservation

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ABSTRACT1. Shellfish farming is an expanding segment of marine aquaculture, but environmental effects of this industry are only beginning to be considered.2. The interaction between off-bottom, suspended oyster farming and wintering sea ducks in coastal British Columbia was studied. Specifically, the habitat use of surf scoters (Melanitta perspicillata) and Barrow's goldeneyes (Bucephala islandica), the most abundant sea duck species in the study area, was evaluated in relation to natural environmental attributes and shellfish aquaculture.3. The extent of shellfish farming was the best-supported habitat variable explaining variation in surf scoter densities, and the only habitat attribute from the considered set that was a strong predictor of Barrow's goldeneye densities. In both cases, the findings indicated strong positive relationships between densities of sea ducks and shellfish aquaculture operations. These relationships are presumably the result of large numbers of wild mussels (Mytilus trossulus) that settle and grow on aquaculture structures and are preferred prey of these sea ducks.4. Previous work has shown that aquaculture structures provide good conditions for recruiting and growing mussels, including refuge from invertebrate predators, which in turn provides higher densities of higher quality prey for sea ducks than available in intertidal areas. This offers a rare example in which introduction of an industry leads to positive effects on wildlife populations, which is particularly important given persistent declines in numbers of many sea ducks.

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A preliminary study on the effects of oyster culturing structures on birds in a sheltered Irish estuary

Cited by 10 publications

References 8 publications

Attraction and repulsion of mobile wild organisms to finfish and shellfish aquaculture: a review

Attraction and repulsion of mobile wild organisms to finfish and shellfish aquaculture: a review

Assessing conservation conflict: Does intertidal oyster aquaculture inhibit foraging behavior of migratory shorebirds?

Effects of off‐bottom shellfish aquaculture on winter habitat use by molluscivorous sea ducks

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