Data

Utilisation of the introduced New Zealand screwshell (Maoricolpus roseus) by native hermit crabs in eastern Tasmania - spatial variability in occupancy

University of Tasmania, Australia
Reid, Anthony
Viewed: [[ro.stat.viewed]] Cited: [[ro.stat.cited]] Accessed: [[ro.stat.accessed]]
ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Adc&rfr_id=info%3Asid%2FANDS&rft_id=https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/a53781b0-2b96-11dd-a343-00188b4c0af8&rft.title=Utilisation of the introduced New Zealand screwshell (Maoricolpus roseus) by native hermit crabs in eastern Tasmania - spatial variability in occupancy&rft.identifier=https://metadata.imas.utas.edu.au/geonetwork/srv/eng/catalog.search#/metadata/a53781b0-2b96-11dd-a343-00188b4c0af8&rft.description=Interactions between native and introduced species can help to elucidate the impact of exotic species on the broader community. This work examines utilisation of an introduced gastropod, the New Zealand screwshell (Maoricolpus roseus) by native hermit crabs in eastern Tasmania.Samples of screwshells were collected from Bass Strait, Maria Island, Pirates Bay and Dennes Point using a modified scallop dredge or collected by divers. Site location, date, depth, dredge opening size were recorded, and random sub-samples of shells were measured for length and width, and spire damage was scored. Hermit crabs, if present, were identified to species, sexed and measured.Maintenance and Update Frequency: notPlannedStatement: Maoricolpus roseus were collected from 5 sites in eastern Tasmania: Bass Strait - 3 samples: 39°12.500 S 148°31.280 E (37m) 39°47.110 S 148°23.620 E (37m) 39°45.260 S 148°24.590 E (37m) Maria Island 42°39.076 S 147°59.757 E (18m) Pirates Bay 43°02.118 S 147°56.550 E (6m) Dennes Point 43°03.618 S 147°19.703 E (10-40m) Huon Island 43°16.350 S 147°07.860 E (10m)Statement: Maoricolpus roseus were collected using a modified scallop dredge towed at an average speed of 1 knot for a period of 5 minutes: Bass Strait - using a dredge with an opening 4260mm x 1510mm and a depth of 390mm, with mesh size = 23 x 35 mm. Dennes Point and Huon Island - dredge opening of 630mm x 350mm and a depth of 320mm. Maria Island and Pirates Bay were randomly sampled by divers until approximately 300 shells had been collected.Statement: A sub-sample of approx 300 Maoricolpus roseus shells were used from each site. Shell length and width were measured to the nearest 0.1 mm using Vernier callipers (shell length = longest distance of the shell from apex to anterior and width = widest part, below aperture). Shell weight was measured to the nearest 0.01g after drying at 110°C for 24 hours. Spire damage was given a relative score of 0-3. Shells were also scored as live, dead and available or dead and unavailable. Shells were broken, and if hermit crabs were present, they were identified to species, sexed and carapace measured with Vernier callipers to the nearest 0.1mm.&rft.creator=Reid, Anthony &rft.date=2008&rft.coverage=westlimit=147.1; southlimit=-43.2; eastlimit=148.5; northlimit=-39.2&rft.coverage=westlimit=147.1; southlimit=-43.2; eastlimit=148.5; northlimit=-39.2&rft.coverage=uplimit=40; downlimit=10&rft.coverage=uplimit=40; downlimit=10&rft_rights=Creative Commons Attribution 2.5 Australia License http://creativecommons.org/licenses/by/2.5/au/&rft_rights=The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).&rft_rights=This data is yet to be published, please contact the researcher for access to the data.&rft_rights=The data described in this record are the intellectual property of A. Reid.&rft_subject=biota&rft_subject=CRUSTACEANS&rft_subject=EARTH SCIENCE&rft_subject=BIOLOGICAL CLASSIFICATION&rft_subject=ANIMALS/INVERTEBRATES&rft_subject=ARTHROPODS&rft_subject=MOLLUSKS&rft_subject=24 079001&rft_subject=Maoricolpus roseus&rft_subject=Marine and Estuarine Ecology (incl. Marine Ichthyology)&rft_subject=BIOLOGICAL SCIENCES&rft_subject=ECOLOGY&rft_subject=Invasive Species Ecology&rft_subject=ENVIRONMENTAL SCIENCES&rft_subject=ECOLOGICAL APPLICATIONS&rft_subject=Shell length&rft_subject=Shell width&rft_subject=Shell weight&rft_subject=Hermit crab occupancy&rft.type=dataset&rft.language=English Access the data
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The citation in a list of references is: citation author name/s (year metadata published), metadata title. Citation author organisation/s. File identifier and Data accessed at (add http link).

This data is yet to be published, please contact the researcher for access to the data.

The data described in this record are the intellectual property of A. Reid.

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Interactions between native and introduced species can help to elucidate the impact of exotic species on the broader community. This work examines utilisation of an introduced gastropod, the New Zealand screwshell (Maoricolpus roseus) by native hermit crabs in eastern Tasmania.

Samples of screwshells were collected from Bass Strait, Maria Island, Pirates Bay and Dennes Point using a modified scallop dredge or collected by divers. Site location, date, depth, dredge opening size were recorded, and random sub-samples of shells were measured for length and width, and spire damage was scored. Hermit crabs, if present, were identified to species, sexed and measured.

Lineage

Maintenance and Update Frequency: notPlanned
Statement: Maoricolpus roseus were collected from 5 sites in eastern Tasmania: Bass Strait - 3 samples: 39°12.500 S 148°31.280 E (37m) 39°47.110 S 148°23.620 E (37m) 39°45.260 S 148°24.590 E (37m) Maria Island 42°39.076 S 147°59.757 E (18m) Pirates Bay 43°02.118 S 147°56.550 E (6m) Dennes Point 43°03.618 S 147°19.703 E (10-40m) Huon Island 43°16.350 S 147°07.860 E (10m)
Statement: Maoricolpus roseus were collected using a modified scallop dredge towed at an average speed of 1 knot for a period of 5 minutes: Bass Strait - using a dredge with an opening 4260mm x 1510mm and a depth of 390mm, with mesh size = 23 x 35 mm. Dennes Point and Huon Island - dredge opening of 630mm x 350mm and a depth of 320mm. Maria Island and Pirates Bay were randomly sampled by divers until approximately 300 shells had been collected.
Statement: A sub-sample of approx 300 Maoricolpus roseus shells were used from each site. Shell length and width were measured to the nearest 0.1 mm using Vernier callipers (shell length = longest distance of the shell from apex to anterior and width = widest part, below aperture). Shell weight was measured to the nearest 0.01g after drying at 110°C for 24 hours. Spire damage was given a relative score of 0-3. Shells were also scored as live, dead and available or dead and unavailable. Shells were broken, and if hermit crabs were present, they were identified to species, sexed and carapace measured with Vernier callipers to the nearest 0.1mm.

Notes

Credit
School of Zoology, University of Tasmania
Credit
Natural Heritage Trust (NHT) Grant
Purpose
To examine the association between Maoricolpus roseus and hermit crabs - and thereby identify potential impacts of this introduced screwshell on native populations of hermit crabs in eastern Tasmania - specifically looking at spatial variation in occupancy and utilisation of M. roseus shells by hermit crabs examined over large spatial scales.

Created: 27 05 2008

Data time period: 2003 to 2003

This dataset is part of a larger collection

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148.5,-39.2 148.5,-43.2 147.1,-43.2 147.1,-39.2 148.5,-39.2

147.8,-41.2

text: westlimit=147.1; southlimit=-43.2; eastlimit=148.5; northlimit=-39.2

text: uplimit=40; downlimit=10

Subjects
24 079001 | ANIMALS/INVERTEBRATES | ARTHROPODS | BIOLOGICAL CLASSIFICATION | Biological Sciences | Crustaceans | EARTH SCIENCE | Ecological Applications | Ecology | Environmental Sciences | Hermit crab occupancy | Invasive Species Ecology | Mollusks | Maoricolpus roseus | Marine and Estuarine Ecology (Incl. Marine Ichthyology) | Shell length | Shell weight | Shell width | biota |

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  • global : a53781b0-2b96-11dd-a343-00188b4c0af8