Does proximity to urban centres affect the dietary regime of marine benthic filter feeders?

Puccinelli, Eleonora; Noyon, Margaux; McQuaid, Christopher D.

doi:10.1016/j.ecss.2015.12.017

Cited by 20 publications

(13 citation statements)

References 89 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…The sewage outfall was also significantly linked with the benthic community composition, suggesting that this pointsource pollution affected the fauna. Invertebrates in heavily modified waterbodies in the vicinity of urban centers can be significantly impacted by an altered food chain, caused by higher nutrient concentrations from domestic and industrial sewage (Puccinelli et al, 2016). This can translate into a compromised ecological status, particularly if it is linked to oxygen depletion (Borja et al, 2009).…”

Section: Discussionmentioning

confidence: 99%

Historical Data Reveal 30-Year Persistence of Benthic Fauna Associations in Heaviy Modified Waterbody

Callaway

2016

Front. Mar. Sci.

View full text Add to dashboard Cite

Baseline surveys form the cornerstone of coastal impact studies where altered conditions, for example through new infrastructure development, are assessed against a temporal reference state. They are snapshots taken before construction. Due to scarcity of relevant data prior to baseline surveys long-term trends can often not be taken into account. Particularly in heavily modified waterbodies this would however be desirable to control for changes in anthropogenic use over time as well as natural ecological variation. Here, the benthic environment of an industrialized embayment was investigated (Swansea Bay, Wales, UK) where it is proposed to build a tidal lagoon that would generate marine renewable energy from the tidal range. Since robust long-term baseline data was not available, the value of unpublished historical benthos information from 1984 by a regional water company was assessed with the aim to improve certainty about the persistence of current benthic community patterns. A survey of 101 positions in 2014 identified spatially discrete benthic communities with areas of high and low diversity. Habitat characteristics including sediment properties and the proximity to a sewage outfall explained 17-35% of the variation in the community structure. Comparing the historical information from 1984 with 2014 revealed striking similarity in the benthic communities between those years, not just in their spatial distribution but also to a large extent in the species composition. The 30-year-old information confirmed spatial boundaries of discrete species associations and pinpointed a similar diversity hotspot. A group of five common species was found to be particularly persistent over time (Nucula nitidosa, Spisula elliptica, Spiophanes bombyx, Nephtys hombergii, Diastylis rathkei). According to the Infauna Quality Index (IQI) linked to the EU Water Framework Directive (WFD) the average ecological status for 2014 was "moderate," but 11 samples showing "poor" and "bad" status indicated possible negative impacts of dredge spoil disposal. Generally the study demonstrated the value of historical information for assessing the persistence of benthic community characteristics, while also highlighting shortcomings if raw data is lost and if the historical baseline does not reflect pristine ecological conditions.

show abstract

Section: Discussionmentioning

confidence: 99%

Historical Data Reveal 30-Year Persistence of Benthic Fauna Associations in Heaviy Modified Waterbody

Callaway

2016

Front. Mar. Sci.

View full text Add to dashboard Cite

show abstract

“…Puccinelli et al [56] assessed if the proximity to urban centres influenced the dietary regime of marine benthic filter feeders. They found that mussels from urbanised sites had fatty acid signatures enriched with a greater proportion of polyunsaturated fatty acids (PUFA), indicative of exposure to large food availability and quality.…”

Section: Plos Onementioning

confidence: 99%

“…As human concentration associated to urbanisation promotes nutrient input into the sea, it may also enhance primary production and thus the amount of PUFA in phytoplankton. Puccinelli et al [56] conclude that urbanisation increases the availability of PUFA for benthic filter feeders and therefore nourishing and suitable food accessibility. This could explain why mussels in urban areas reach a greater-size.…”

Section: Plos Onementioning

confidence: 99%

The role of urbanisation in affecting Mytilus galloprovincialis

et al. 2020

View full text Add to dashboard Cite

Urbanisation is considered as one of the most critical and widespread threats to coastal marine ecosystems. The aim of this study was to compare the density, percentage cover, thickness of clumps, condition index and size-frequency distribution of Mytilus galloprovincialis between urban and non-urban shores, at nested spatial scales, in the Northern Portuguese coast. M. galloprovincialis was selected as model because it is economically and ecologically relevant. Moreover, the relationship between mussel size and the other variables (i.e. density, percentage cover, thickness and condition index) were investigated. Mussels on urban shores showed a smaller density and a greater frequency of larger individuals. A significant negative correlation between mussel length with density and with thickness of clumps was also found. Our results seem to indicate that recruitment has declined on urban shores and, as a result, intraspecific competition is also smaller, leading to more resources being available for a fewer individuals which can reach larger sizes. As mussel beds support a great biodiversity of invertebrates and provide many ecosystem services, urbanisation may have indirect effects on communities associated with mussels. Understanding the vulnerability of mussel beds to urbanisation could inform management.

show abstract

“…Our study was conducted close to land and this could have contributed to an increase in δ 15 N in benthic populations due to nutrient runoff from the coast (Darnaude et al ; Puccinelli et al b ), which is known to play an important role at the PEI (Treasure et al ). In our study, however, all stations were located at similar distances from the PEI (< 10 km) and they would have experienced similar levels of runoff.…”

Section: Discussionmentioning

confidence: 99%

“…Alternatively, the higher d 15 N of Porifera compared to the other two taxa could be linked to the association with symbiotic bacteria (Iken et al 2001) or to the fact that some species of sponge can have an omnivores/carnivorous diet, as several species have been re-classified as carnivorous (Vacelet 2006;Bergmann et al 2009;Goodwin et al 2017). Additionally, differences in metabolic pathways among species feeding on the same food sources can result in different FA profiles (Myklestad 1974;Puccinelli et al 2016bPuccinelli et al , 2017. The broad range in SI values detected for PEI shelf benthos are similar to results for the Weddell Sea (Mincks et al 2008) and the Bering Sea (Lovvorn et al 2005), indicating the use of a variety of food sources depending on the feeding mechanism of the species and the resources available.…”

Section: Discussionmentioning

confidence: 99%

Factors affecting trophic compositions of offshore benthic invertebrates at a sub‐Antarctic archipelago

Puccinelli

McQuaid

Ansorge

2018

Limnology & Oceanography

Self Cite

View full text Add to dashboard Cite

Food availability is a key regulator of the distribution, metabolism, and success of benthic populations. In deep sea ecosystems, hydrodynamics and depth play fundamental roles in determining benthic food resources. Recent studies suggest that the Southern Ocean sub‐Antarctic front is shifting southward, with implications for primary production and food availability around the sub‐Antarctic Islands embedded in the Antarctic Circumpolar Current. We used fatty acid (FA) and stable isotope (SI) analyses to investigate the trophic pattern of benthic invertebrates and suspended particulate matter (SPM) at three Depths (shallow: 100 m, middle: 300 m, and deep: 600 m) in three hydrographic regions with different flow and productivity regimes around the Prince Edward Islands. Both region and depth affected the SI values of SPM, while feeding guild was the key factor influencing consumer trophic values. Depth affected the δ15N of all trophic groups and the FA compositions of suspension feeders. Deeper samples had a higher δ15N and showed a greater proportion of mono‐ and saturated fatty acids, reflecting greater remineralization of SPM and of food reaching the seafloor. Region affected the δ13C and FA values of SPM, suspension feeders and deposit feeder/scavengers, with differences between the interisland and open ocean regions. This was probably linked to the retention of nutrients and phytoplankton between the islands. Critically, the effects of depth and hydrographic region were taxon specific, indicating that long‐term responses to environmental change may have complex consequences for the feeding ecology and viability of benthic populations, with implications for the higher trophic levels that these populations support.

show abstract

Does proximity to urban centres affect the dietary regime of marine benthic filter feeders?

Cited by 20 publications

References 89 publications

Historical Data Reveal 30-Year Persistence of Benthic Fauna Associations in Heaviy Modified Waterbody

Historical Data Reveal 30-Year Persistence of Benthic Fauna Associations in Heaviy Modified Waterbody

The role of urbanisation in affecting Mytilus galloprovincialis

Factors affecting trophic compositions of offshore benthic invertebrates at a sub‐Antarctic archipelago

Contact Info

Product

Resources

About