CenSeam, an International Program on Seamounts within the Census of Marine Life: Achievements and Lessons Learned

Stocks, Karen; Clark, Malcolm R.; Rowden, Ashley A.; Consalvey, Mireille; Schlacher, Thomas A.

doi:10.1371/journal.pone.0032031

Cited by 24 publications

(18 citation statements)

References 47 publications

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“…So, while seamounts could conceivably promote dispersal (Hubbs, 1959) and boundary currents, the mounting evidence was that endemism due to "geographic or hydrographic isolation" was higher on seamounts than other marine habitats (Richer de Forges et al, 2000). The rates of new species discovery on seamounts were rapid, and yielded similarly rapid claims of high apparent endemism (see Box 10 on page 145 of this issue [Stocks, 2010]; Stocks et al, 2004;Stocks and Hart, 2007).…”

Section: Biological "Islands" In the Deep Seamentioning

confidence: 99%

Seamounts: Deep-Ocean Laboratories of Faunal Connectivity, Evolution, and Endemism

Shank¹

2010

Oceanog.

100

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Section: Biological "Islands" In the Deep Seamentioning

confidence: 99%

Seamounts: Deep-Ocean Laboratories of Faunal Connectivity, Evolution, and Endemism

Shank¹

2010

Oceanog.

100

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“…Biological assemblages on seamounts vary across a wide range of spatial scales, from structural difference between habitats on individual seamounts, to differences among regions (Richer de Forges et al, 2000;Clark et al, 2010;McClain et al, 2010). How seamount biota are structured spatially remains one of the most important science questions, especially in the context of conserving seamount ecosystems that may become threatened by deep-sea mining (Rowden et al, 2010a;Schlacher et al, 2010;Clark et al, 2012;Stocks et al, 2012).…”

Section: Introductionmentioning

confidence: 99%

Seamount benthos in a cobalt‐rich crust region of the central Pacific: conservation challenges for future seabed mining

Schlacher

Baco

Rowden

et al. 2013

Diversity and Distributions

Self Cite

103

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Aim The benthic fauna of seamounts typically includes organisms that are slowgrowing, long-lived and sensitive to mechanical disturbance, making seamounts susceptible to anthropogenic impacts. Such impacts may arise from mining cobalt-rich crusts, envisaged for seamounts in the central North Pacific; this scenario requires that environmental guidelines for mining operations on seamounts be developed. Here, we provide the biological information essential for effective conservation planning of deep-sea features targeted for such mining.Location Central North Pacific, Hawaiian Seamount Chain.Methods Spatial analysis of seamount benthos using a large biological dataset (> 600 taxa) obtained from 144 submersible dives (depth range: 113-1985 m) on 27 seamounts covering a distance of over 2200 km of ocean.Results Benthic assemblages of invertebrates are structurally different between seamounts located inside and outside a region with cobalt-rich crusts. This spatial contrast results from variations in species composition and relative abundance of species, rather than differences in species richness, challenging historical notions of an impoverished cobalt-rich crust fauna in the region. Seamount assemblages also have high species turnover with depth and distance at the scale of individual seamounts, but geographic separation was a poor predictor of ecological separation for the region at large.Main conclusion Several implications for the design of spatial management and conservation tools with respect to mining emerge: (1) conservation of seamounts outside the cobalt-rich crust region is unlikely to capture the full range of ecological features found inside the region; (2) conservation areas need to encompass a broad bathymetric gradient; (3) ideally, mining blocks on individual seamounts should not exceed 2 km in length. Overall, the life history characteristics and morphological traits of the deep-water invertebrate fauna typical of seamounts in the region imply that any recovery from mechanical impacts is likely to be very slow.

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“…Shank 2010;Stocks et al 2012). Seamounts are considered to act as ''stepping stones'' for species dispersal (Almada et al 2001;Á vila and Malaquias 2003;Santos et al 1995;Shank 2010;Xavier and van Soest 2007), bridging large oceanic areas in particular for shelf and slope dwelling species.…”

Section: Introductionmentioning

confidence: 99%

The fish fauna of Ampère Seamount (NE Atlantic) and the adjacent abyssal plain

et al. 2014

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An inventory of benthic and benthopelagic fishes is presented as a result of two exploratory surveys around Ampère Seamount, between Madeira and the Portuguese mainland, covering water depths from 60 to 4,400 m. A total of 239 fishes were collected using different types of sampling gear. Three chondrichthyan species and 31 teleosts in 21 families were identified. The collections showed a vertical zonation with little overlap, but indications for an affinity of species to certain water masses were only vague. Although most of the species present new records for Ampère Seamount, all of them have been known for the NE Atlantic; endemic species were not found. The comparison with fish communities at other NE Atlantic seamounts indicates that despite a high ichthyofaunal similarity, which supports the ''stepping stone'' hypothesis of species dispersal, some differences can be attributed to the local features of the seamounts.

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CenSeam, an International Program on Seamounts within the Census of Marine Life: Achievements and Lessons Learned

Cited by 24 publications

References 47 publications

Seamounts: Deep-Ocean Laboratories of Faunal Connectivity, Evolution, and Endemism

Seamounts: Deep-Ocean Laboratories of Faunal Connectivity, Evolution, and Endemism

Seamount benthos in a cobalt‐rich crust region of the central Pacific: conservation challenges for future seabed mining

The fish fauna of Ampère Seamount (NE Atlantic) and the adjacent abyssal plain

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