<div><p>We compare depth distributions, and β-diversity of holothurians and asteroids collected from the Porcupine Seabight (PSB) and Porcupine Abyssal Plain (PAP) in the eastern North Atlantic. The data represent 160 and 209 epibenthic sledge and semi-balloon otter trawl samples for holothurians and asteroids respectively taken from 1977 to 1998 as part of the Institute of Oceanographic Sciences Biology Programme in the PSB (Rice et al. 1991) and the BENGAL Program in the PAP (Billett & Rice 2001). The samples include 43 species of holothurians (Billett 1991) and 43 species of asteroids (Howell et al. 2002).</p>
<p>We performed analyses of nested order by applying BINMATNEST (Rodríguez-Gironés & Santamaría 2006. Baselga (2010, 2012) showed that β-diversity, can be decomposed into 2 terms: dissimilarity resulting from turnover (spatial replacement) and dissimilarity attributed to nestedness. We used these measures to examine the differences in composition between 2 sites (pair-wise dissimilarity). To determine the general trend in species composition over all depths, we performed non-metric multi-dimensional scaling (NMDS) on species presence absence matrices (Bray-Curtis dissimilarity index scaling) using the metaMDS function in R.</p>
<p>Baselga A (2010) Partitioning the turnover and nestedness components of β diversity. Glob Ecol Biogeogr 19: 134−143</p>
<p>Baselga A (2012) The relationship between species replacement, dissimilarity derived from nestedness, and nestedness. Glob Ecol Biogeogr 21: 1223−1232</p>
<p>Billett DSM (1991) Deep-sea holothurians. Oceanogr Mar Biol Annu Rev 29: 259−317</p>
<p>Billett DSM, Rice AL (2001) The BENGAL programme: introduction and overview. Prog Oceanogr 50: 13−25</p>
<p>Howell KL, Billett DS, Tyler PA (2002) Depth-related distribution and abundance of seastars (Echinodermata: Asteroidea) in the Porcupine Seabight and Porcupine Abyssal Plain, NE Atlantic. Deep-Sea Res I 49: 1901−1920</p>
<p>Rice AL, Billett DSM, Thurston MH, Lampitt RS (1991) The Institute of Oceanographic Sciences biology programme in the Porcupine Seabight: background and general introduction. J Mar Biol Assoc UK 71: 281−310</p>
<p>Rodríguez-Gironés MA, Santamaría L (2006) A new algorithm to calculate the nestedness temperature of presence-absence matrices. J Biogeogr 33: 924−935</p>
<p>Wagstaff, M., Howell, K.L., Bett, B. J., Billett, D. S. M., Brault, S., Stuart, C. T. & Rex, M. (2014) β-diversity of deep-sea holothurians and asteroids along a bathymetric gradient (NE Atlantic). Marine Ecology Progress Series, 508,177–185.</p>
<p><strong>Gear code Gear type</strong><br />
BN1.5/3F Epibenthic sled<br />
BN1.5/3M Epibenthic sled<br />
BN1.5/C Epibenthic sled<br />
BN1.5/P Epibenthic sled<br />
BNC Epibenthic sled<br />
BNF Epibenthic sled<br />
GT Otter trawl<br />
OT Otter trawl<br />
OTSB14 Otter trawl<br />
OTSB14D Otter trawl<br />
ST Otter trawl</p></div>
Asteroids and Holothurians - Table 1 - Asteroid species - Presence (1) and absence (0) of Asteroid species by station
<div><p>Asteroids: Table 1. Presence (1) and absence (0) of Asteroid species by station, with station information</p>
<p>Data tables for:<br />
Wagstaff, M., Howell, K.L., Bett, B. J., Billett, D. S. M., Brault, S., Stuart, C. T. & Rex, M. (2014) β-diversity of deep-sea holothurians and asteroids along a bathymetric gradient (NE Atlantic). Marine Ecology Progress Series, 508,177–185.</p>
<p><strong>Taxonomic Note</strong> <br />
Zoroaster longicauda = Zoroaster fulgens (long armed morph) of Howell et al 2004**<br />
Zoroaster fulgens (robust morph) = Zoroaster fulgens (robust morph) of Howell et al 2004**<br />
Zoroaster fulgens (slender morph) = Zoroaster fulgens (slender morph) of Howell et al 2004**</p>
<p>**Howell, K.L., Rogers, A., Tyler, P.A. and Billett, D.S.M. (2004). Reproductive isolation among morphotypes of the cosmopolitan species Zoroaster fulgens (Asteroidea:Echinodermata).</p></div>
Asteroids and Holothurians - Table 1 - Asteroid species - Presence 1 and absence 0 of Asteroid species by station
<div><p><strong>BCO-DMO Processing Notes</strong><br />
- Generated from original file "Data Asteroid Holothurian for Wagstaff et al paper 2014.xlsx, Sheet 1" contributed by Carol Stuart<br />
- Parameter names edited to conform to BCO-DMO naming convention found at <a href="http://usjgofs.whoi.edu/naming-guidelines.html" target="_blank">Choosing Parameter Name</a><br />
- Date reformatted to YYYYMMDD<br />
- Misc dates corrected (mis-entered originally)</p></div>
565107
Asteroids and Holothurians - Table 1 - Asteroid species - Presence 1 and absence 0 of Asteroid species by station
2015-08-31T15:01:35-04:00
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2023-07-07T16:10:26-04:00
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Asteroids and Holothurians Table 1: Asteroid species - Presence and absence of Asteroid species by station in the deep-sea East and West Atlantic from 1977-1999 (Deep Sea Benthic Dynamics project)
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Rex, M., Brault, S., Stuart, C. (2015) Asteroids and Holothurians Table 1: Asteroid species - Presence and absence of Asteroid species by station in the deep-sea East and West Atlantic from 1977-1999 (Deep Sea Benthic Dynamics project). Biological and Chemical Oceanography Data Management Office (BCO-DMO). (Version 31 August 2015) Version Date 2015-08-31 [if applicable, indicate subset used]. http://lod.bco-dmo.org/id/dataset/565107 [access date]
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