Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery
Deep-sea sponge grounds are important habitats that provide several ecosystem services, yet relatively little is known about their distribution and ecology. While most surveys have focused on the broad-scale distribution patterns of sponge grounds (100s–1000s m), only rarely have the finer-scale (&l...
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Online Access: | http://hdl.handle.net/1956/22597 https://doi.org/10.1016/j.dsr.2019.103137 |
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ftunivbergen:oai:bora.uib.no:1956/22597 2023-05-15T14:53:08+02:00 Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery Meyer, Heidi Kristina Roberts, Emyr Martyn Rapp, Hans Tore Davies, Andrew J 2020-01-06T08:20:13Z application/pdf http://hdl.handle.net/1956/22597 https://doi.org/10.1016/j.dsr.2019.103137 eng eng Elsevier urn:issn:0967-0637 urn:issn:1879-0119 http://hdl.handle.net/1956/22597 https://doi.org/10.1016/j.dsr.2019.103137 cristin:1759409 Attribution CC BY https://creativecommons.org/licenses/by/4.0/ Copyright 2019 The Author(s) Deep Sea Research Part I: Oceanographic Research Papers Arctic mid-ocean ridge Autonomous underwater vehicle Deep sea Demersal fish Seamount Sponge ground Peer reviewed Journal article 2020 ftunivbergen https://doi.org/10.1016/j.dsr.2019.103137 2023-03-14T17:42:14Z Deep-sea sponge grounds are important habitats that provide several ecosystem services, yet relatively little is known about their distribution and ecology. While most surveys have focused on the broad-scale distribution patterns of sponge grounds (100s–1000s m), only rarely have the finer-scale (<10 m) spatial distribution patterns of the primary organisms been studied. In this study, the autonomous underwater vehicle (AUV) Hugin 1000 was used to map an area of an arctic sponge ground located on the summit of the Schulz Bank (Arctic Mid-Ocean Ridge), with the aim of detecting small-scale spatial patterns produced by the dominant megafauna. Using low-light cameras to construct a photomosaic comprising of 9,953 images and a virtual quadrat spatial sampling approach, density hotspots of the most prominent megafauna were visualized. The primary megafauna detected were demosponges, hexactinellids, ascidians, cnidarians, echinoderms, and demersal fish species. Most megafauna, like the primary structure-forming sponge species Geodia parva and Stelletta rhaphidiophora, were distributed evenly throughout the sample area, though species like Lissodendoryx (Lissodendoryx) complicata and Gersemia rubiformis displayed clear fine-scale spatial preferences. The three demersal fish species, Macrourus berglax, Reinhardtius hippoglossoides, and Amblyraja hyperborea, were uniformly distributed throughout the sample area. Based on the presence of skate egg cases and juveniles within many images, it is likely that the site is being used as a nursery ground for A. hyperborea. This study demonstrates the potential of using AUVs to detect fine-scale spatial patterns of the structure-forming sponges and demersal fish species. The use of AUVs for deep-water benthic surveys can help visualize how fauna (e.g. fish) utilise deep-sea habitats, and act as a tool for quantifying individuals through relatively unbiased means (e.g. pre-programmed track, no sampling). Such information is crucial for future conservation and management efforts. ... Article in Journal/Newspaper Arctic University of Bergen: Bergen Open Research Archive (BORA-UiB) Arctic Hugin ENVELOPE(-21.450,-21.450,74.900,74.900) Schulz Bank ENVELOPE(7.500,7.500,73.867,73.867) Deep Sea Research Part I: Oceanographic Research Papers 153 103137 |
institution |
Open Polar |
collection |
University of Bergen: Bergen Open Research Archive (BORA-UiB) |
op_collection_id |
ftunivbergen |
language |
English |
topic |
Arctic mid-ocean ridge Autonomous underwater vehicle Deep sea Demersal fish Seamount Sponge ground |
spellingShingle |
Arctic mid-ocean ridge Autonomous underwater vehicle Deep sea Demersal fish Seamount Sponge ground Meyer, Heidi Kristina Roberts, Emyr Martyn Rapp, Hans Tore Davies, Andrew J Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery |
topic_facet |
Arctic mid-ocean ridge Autonomous underwater vehicle Deep sea Demersal fish Seamount Sponge ground |
description |
Deep-sea sponge grounds are important habitats that provide several ecosystem services, yet relatively little is known about their distribution and ecology. While most surveys have focused on the broad-scale distribution patterns of sponge grounds (100s–1000s m), only rarely have the finer-scale (<10 m) spatial distribution patterns of the primary organisms been studied. In this study, the autonomous underwater vehicle (AUV) Hugin 1000 was used to map an area of an arctic sponge ground located on the summit of the Schulz Bank (Arctic Mid-Ocean Ridge), with the aim of detecting small-scale spatial patterns produced by the dominant megafauna. Using low-light cameras to construct a photomosaic comprising of 9,953 images and a virtual quadrat spatial sampling approach, density hotspots of the most prominent megafauna were visualized. The primary megafauna detected were demosponges, hexactinellids, ascidians, cnidarians, echinoderms, and demersal fish species. Most megafauna, like the primary structure-forming sponge species Geodia parva and Stelletta rhaphidiophora, were distributed evenly throughout the sample area, though species like Lissodendoryx (Lissodendoryx) complicata and Gersemia rubiformis displayed clear fine-scale spatial preferences. The three demersal fish species, Macrourus berglax, Reinhardtius hippoglossoides, and Amblyraja hyperborea, were uniformly distributed throughout the sample area. Based on the presence of skate egg cases and juveniles within many images, it is likely that the site is being used as a nursery ground for A. hyperborea. This study demonstrates the potential of using AUVs to detect fine-scale spatial patterns of the structure-forming sponges and demersal fish species. The use of AUVs for deep-water benthic surveys can help visualize how fauna (e.g. fish) utilise deep-sea habitats, and act as a tool for quantifying individuals through relatively unbiased means (e.g. pre-programmed track, no sampling). Such information is crucial for future conservation and management efforts. ... |
format |
Article in Journal/Newspaper |
author |
Meyer, Heidi Kristina Roberts, Emyr Martyn Rapp, Hans Tore Davies, Andrew J |
author_facet |
Meyer, Heidi Kristina Roberts, Emyr Martyn Rapp, Hans Tore Davies, Andrew J |
author_sort |
Meyer, Heidi Kristina |
title |
Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery |
title_short |
Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery |
title_full |
Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery |
title_fullStr |
Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery |
title_full_unstemmed |
Spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (AUV) imagery |
title_sort |
spatial patterns of arctic sponge ground fauna and demersal fish are detectable in autonomous underwater vehicle (auv) imagery |
publisher |
Elsevier |
publishDate |
2020 |
url |
http://hdl.handle.net/1956/22597 https://doi.org/10.1016/j.dsr.2019.103137 |
long_lat |
ENVELOPE(-21.450,-21.450,74.900,74.900) ENVELOPE(7.500,7.500,73.867,73.867) |
geographic |
Arctic Hugin Schulz Bank |
geographic_facet |
Arctic Hugin Schulz Bank |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Deep Sea Research Part I: Oceanographic Research Papers |
op_relation |
urn:issn:0967-0637 urn:issn:1879-0119 http://hdl.handle.net/1956/22597 https://doi.org/10.1016/j.dsr.2019.103137 cristin:1759409 |
op_rights |
Attribution CC BY https://creativecommons.org/licenses/by/4.0/ Copyright 2019 The Author(s) |
op_doi |
https://doi.org/10.1016/j.dsr.2019.103137 |
container_title |
Deep Sea Research Part I: Oceanographic Research Papers |
container_volume |
153 |
container_start_page |
103137 |
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1766324554710384640 |