Alan Williams

ORCID: 0000-0002-2867-7713
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About
Contact & Profiles
Research Areas
  • Coral and Marine Ecosystems Studies
  • Marine and fisheries research
  • Marine Biology and Ecology Research
  • Ichthyology and Marine Biology
  • Marine and coastal plant biology
  • Marine animal studies overview
  • Fish Ecology and Management Studies
  • Underwater Acoustics Research
  • Creativity in Education and Neuroscience
  • Marine Bivalve and Aquaculture Studies
  • Isotope Analysis in Ecology
  • Fish Biology and Ecology Studies
  • Species Distribution and Climate Change
  • Genetic diversity and population structure
  • Economic and Environmental Valuation
  • Underwater Vehicles and Communication Systems
  • Avian ecology and behavior
  • Crustacean biology and ecology
  • Restraint-Related Deaths
  • Marine and coastal ecosystems
  • Microbial Community Ecology and Physiology
  • Tropical and Extratropical Cyclones Research
  • Ocean Acidification Effects and Responses
  • Counseling Practices and Supervision
  • Soil Geostatistics and Mapping

CSIRO Oceans and Atmosphere
2014-2024

Commonwealth Scientific and Industrial Research Organisation
2001-2023

La Trobe University
1976-2009

Family Support Network
2007

Missouri University of Science and Technology
2001

Federation University
1999

Berkeley College
1994

University Hospital Coventry
1981

University Hospital of Wales
1977

University of Leicester
1977

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 397:279-294 (2009) - DOI: https://doi.org/10.3354/meps08248 Impacts of bottom trawling on deep-coral ecosystems seamounts are long-lasting F. Althaus1, A. Williams1,*, T. Schlacher2, R. J. Kloser1, M. Green1, B. Barker1, N. Bax1, P. Brodie1, Schlacher-Hoenlinger2,3 1CSIRO Wealth from Oceans Flagship, CSIRO...

10.3354/meps08248 article EN Marine Ecology Progress Series 2009-08-14

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 213:111-125 (2001) - doi:10.3354/meps213111 Seamount benthic macrofauna off southern Tasmania: community structure and impacts of trawling J. A. Koslow1,*, K. Gowlett-Holmes1, Lowry2, T. O¹Hara3, G. C. B. Poore3, Williams1 1CSIRO Research, GPO Box 1538, Hobart, Tasmania 7001, Australia 2Australian Museum, PO...

10.3354/meps213111 article EN Marine Ecology Progress Series 2001-01-01

Abstract Because the nature, tempo and trajectories of biological changes that follow cessation trawling are unknown for seamounts, it is unclear whether closing them to will lead a recovery fauna and, if so, over what time scales. This paper reports on ‘test recovery’ from repeated towed camera surveys three seamounts off New Zealand in 2001 2006 (5 years apart) Australia 1997 (10 apart). In each region, where had ceased were compared adjacent was still active, never been trawled. If...

10.1111/j.1439-0485.2010.00385.x article EN Marine Ecology 2010-07-28

Abstract Seamounts have often been viewed as specialized habitats that support unique communities; this notion has given rise to several hypotheses about how seamount ecosystems are structured. One, the ‘seamount oasis hypothesis’, predicts invertebrates more abundant, speciose and attain higher standing stocks on seamounts compared other deep‐sea habitats. Because hypothesis remained untested for biomass, we ask two questions: (i) Do a benthic biomass than nearby slopes at corresponding...

10.1111/j.1439-0485.2010.00369.x article EN Marine Ecology 2010-05-10

Multifrequency 12, 38, and 120 kHz acoustics were used to identify the dominant fish groups around a deepwater (>600 m) seamount (a known spawning site for orange roughy, Hoplostethus atlanticus) by amplitude mixing of frequencies. This method showed three distinct acoustic groupings that corresponded fishes based on size swimbladder type: myctophids total length less than 10 cm, morids macrourids with lengths >30 roughy mean standard 36 cm. These caught in demersal pelagic trawls...

10.1139/f02-076 article EN Canadian Journal of Fisheries and Aquatic Sciences 2002-06-01

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 340:73-88 (2007) - doi:10.3354/meps340073 Richness and distribution of sponge megabenthos in continental margin canyons off southeastern Australia Thomas A. Schlacher1,*, Monika Schlacher-Hoenlinger1,2, Alan Williams3, Franziska Althaus3, John N. Hooper2, Rudy Kloser3 1Faculty Science, Health & Education, The...

10.3354/meps340073 article EN Marine Ecology Progress Series 2007-01-01

Abstract The first large systematic collection of benthic invertebrate megafauna from the Australian continental margin (depths > 100 m) revealed high species richness and novelty on south‐western slope (∼100–1100 m depth; ∼18° S–35° S). A total 1979 morphologically defined was discriminated in seven taxa across all samples: Demospongiae, Decapoda, corals (Octocorallia Antipatharia), Mollusca, Echinodermata, Ascidiacea, Pycnogonida. Collectively, 59% were estimated to be new or unnamed...

10.1111/j.1439-0485.2009.00355.x article EN Marine Ecology 2010-01-27

Deep sea scleractinian corals will be particularly vulnerable to the effects of climate change, facing loss up 70% their habitat as Aragonite Saturation Horizon (below which are unable form calcium carbonate skeletons) rises. Persistence deep therefore rely on ability larvae disperse to, and colonise, suitable shallow-water habitat. We used DNA sequence data internal transcribed spacer (ITS), mitochondrial ribosomal subunit (16S) control region (MtC) determine levels gene flow both within...

10.1371/journal.pone.0019004 article EN cc-by PLoS ONE 2011-05-18

MEPS Marine Ecology Progress Series Contact the journal Facebook Twitter RSS Mailing List Subscribe to our mailing list via Mailchimp HomeLatest VolumeAbout JournalEditorsTheme Sections 146:21-35 (1997) - doi:10.3354/meps146021 Pelagic biomass and community structure over mid-continental slope off southeastern Australia based upon acoustic midwater trawl sampling Koslow JA, Kloser RJ, Williams A We compare estimates of depth-stratified from 0 900 m at a site on continental south Tasmania,...

10.3354/meps146021 article EN Marine Ecology Progress Series 1997-01-01

Abstract Williams, A., Bax, N. J., Kloser, R. Althaus, F., Barker, B., and Keith G. 2009. Australia’s deep-water reserve network: implications of false homogeneity for classifying abiotic surrogates biodiversity. – ICES Journal Marine Science, 66: 214–224. southeast network marine reserves, declared in July 2007, was designed using a hierarchy that represented the distribution biodiversity as nested set bioregions. In this hierarchy, geomorphic units, individual or aggregations seabed...

10.1093/icesjms/fsn189 article EN cc-by-nc ICES Journal of Marine Science 2008-12-03

ABSTRACT Aim The large biogenic structures formed by colonial cold‐water scleractinian corals provide valuable habitat for marine invertebrates on seamounts and the continental slope of all world oceans. These patchily distributed long‐lived are easily damaged several human activities, particularly bottom trawling fish, potentially vulnerable to ocean acidification caused climate change. Consequently, an important conservation question is whether these support a specialized invertebrate...

10.1111/j.1472-4642.2008.00495.x article EN other-oa Diversity and Distributions 2008-10-15

Assemblages of megabenthos are structured in seven depth-related zones between ∼700 and 4000 m on the rocky topographically complex continental margin south Tasmania, southeastern Australia. These patterns emerge from analysis imagery specimen collections taken a suite surveys using photographic situ sampling by epibenthic sleds, towed video cameras, an autonomous underwater vehicle remotely operated (ROV). Seamount peaks shallow had relatively low biomass diversity assemblages, which may be...

10.1371/journal.pone.0085872 article EN cc-by PLoS ONE 2014-01-22

The Convention on Biological Diversity (CBD) has adopted a scheme of using scientific criteria for identifying 'Ecologically or Biologically Significant Marine Areas' (EBSAs) in need protection open-ocean and deep-sea habitats. To date, expert opinion collated during regional workshops been the main method to identify EBSAs. In this paper, we propose new that could complement process by adding more objective transparent analyses. There are four steps: 1) area be examined, 2) determine...

10.1016/j.ocecoaman.2014.01.016 article EN cc-by-nc-nd Ocean & Coastal Management 2014-03-01

Abstract Protecting deep‐sea coral‐based vulnerable marine ecosystems (VMEs) from human impacts, particularly bottom trawling, is a major conservation challenge in world oceans. Management processes for these are weakened by key uncertainties that could be substantially addressed having much greater volumes of quantitative image‐derived data detail the distribution and abundance coral reefs nature impacts upon them. Considerably available if resource costs image annotation reduced. In this...

10.1111/1365-2664.14408 article EN cc-by-nc Journal of Applied Ecology 2023-03-31
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