The urgent global need to understand port and harbour ecosystems

Johnston, Emma L.; Hedge, Luke H.; Mayer‐Pinto, Mariana

doi:10.1071/mfv66n12_ed

Cited by 10 publications

(1 citation statement)

References 13 publications

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“…To some extent, our results support Connell's () point that floating structures are poor surrogates of the fundamental processes of natural shores. In a changing world where they are expanding at unprecedented rate, applied and invasion ecologists are encouraged to reinforce the current body of knowledge on the functioning and connectivity within and among these habitats at multiple spatial scales (Johnston, Hedge, & Mayer‐Pinto, ; Lavender, Dafforn, Bishop, & Johnston, , ), not only to improve risk models (Sardain et al, ; Seebens et al, ) and spatial planning (Bishop et al, ; Dafforn, ), but also to efficiently estimate the rate of biotic homogenization due to ocean sprawl.…”

Section: Discussionmentioning

confidence: 99%

Habitat type drives the distribution of non‐indigenous species in fouling communities regardless of associated maritime traffic

Leclerc

Viard

Sepúlveda

et al. 2019

Diversity and Distributions

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Aim: Biological invasions and changes in land and sea use are among the five major causes of global biodiversity decline. Shipping and ocean sprawl (multiplication of artificial structures at the expense of natural habitats) are considered as the major forces responsible for marine invasions and biotic homogenization. And yet, there is little evidence of their interplay at multiple spatial scales. Here, we aimed to examine this interaction and the extent to which the type of artificial habitat alters the distribution of native and non-indigenous biodiversity. Location: Southeast Pacific-Central Chilean coastline.Methods: Settlement plates were deployed upon two types of artificial habitats (floating and non-floating hard substrates) at a total of ten study sites, exposed to either international or local traffic. After colonization periods of 3 and 13 months, plates were retrieved to determine their associated fouling sessile assemblages at an early and late stage of development, respectively. Putative confounding factors (temperature, metal concentrations) were taken into account.Results: While traffic type had no detectable effect, there were strong differences in community structure between habitats, consistent across the study region. These differences were driven by non-indigenous species which contributed to 58% and 40% of the community structure in floating habitats after 3 and 13 months, respectively-roughly 10 times greater than in their non-floating counterparts. Assemblages on floating structures also displayed a lower decline in similarity with increasing distance between sampling units, being thus more homogenous than non-floating habitats at the regional scale. Main conclusions:With the absence of international traffic effect, the colonization success by non-indigenous species appears to be mainly habitat-dependent and driven by local propagules. Floating structures not only provide specific niches but characteristics shared with major introduction and dispersal vectors (notably hulls), and in turn constitute important corridors to invasions and drivers of biotic homogenization at multiple scales. | 63LECLERC Et aL.

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Section: Discussionmentioning

confidence: 99%

Habitat type drives the distribution of non‐indigenous species in fouling communities regardless of associated maritime traffic

Leclerc

Viard

Sepúlveda

et al. 2019

Diversity and Distributions

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Coastal Development: Resilience, Restoration and Infrastructure Requirements

Lubchenco

Haugan

2023

The Blue Compendium

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More than 200 countries have a coastline, and this forms the basis for their claims to territorial waters and exclusive economic zones (EEZs). Globally, about 40% of the world’s population live within the “near coastal zone”—the area below an elevation of 100 metres (m) and closer than 100 kilometres (km) from the coast (Kummu et al. 2016). The vast majority of resources for current and emerging sectors that comprise the “ocean— or blue—economy” are concentrated along coastal areas within these EEZs and must operate within a complex, multiple-use and often space-constrained context. The near coastal zone is also where the majority of many coastal nations’ commercial, residential, transport and national defence infrastructure is situated, and it is the backbone to domestic and international supply chains that deliver the marine goods and services upon which we increasingly rely.

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Identifying human-induced influence on microbial community: A comparative study in the effluent-receiving areas in Hangzhou Bay

Zheng

Dai

et al. 2019

Front. Environ. Sci. Eng.

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The urgent global need to understand port and harbour ecosystems

Cited by 10 publications

References 13 publications

Habitat type drives the distribution of non‐indigenous species in fouling communities regardless of associated maritime traffic

Habitat type drives the distribution of non‐indigenous species in fouling communities regardless of associated maritime traffic

Coastal Development: Resilience, Restoration and Infrastructure Requirements

Identifying human-induced influence on microbial community: A comparative study in the effluent-receiving areas in Hangzhou Bay

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