Data

The ecology of the two populations of the intertidal pulmonate limpet, Siphonaria diemenensis.

Australian Ocean Data Network
Quinn, Gerry
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=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=7423cda0-e59a-11dc-a14a-00188b4c0af8&rft.title=The ecology of the two populations of the intertidal pulmonate limpet, Siphonaria diemenensis.&rft.identifier=http://catalogue-aodn.prod.aodn.org.au/geonetwork/srv/eng/search?uuid=7423cda0-e59a-11dc-a14a-00188b4c0af8&rft.description=The ecology of 2 populations of the limpet Siphonaria diemenensis were investigated on the rocky intertidal shore at Griffith Point, San Remo, Victoria from 1979 to 1981. One population was on flat rock in the high intertidal area (Zone 1) and the other population was on the boulders in the low intertidal area (Zone 2). In Zone 1, there were 3 sites (combined area of 3.146 m2) and 12 permanently marked 0.25m2 quadrats and in Zone 2, there were 2 sites (combined area of 1.291m2). The population dynamics of the limpets were investigated by measuring shell lengths and dry weights of individuals in the 2 zones. Fences were used to enclose limpets or exclude limpets from areas of the substratum. Details of each experiment are described in the related records.Shell lengths were measured to the nearest 0.1mm with vernier calipers. Dry tissue weights of limpets were determined by keeping the limpets in aerated seawater for 3 days after collection to clear the guts. The soft tissue was then removed and dried to a constant weight at 55 degrees celsius and weighed to the nearest 0.01mg. The dry weights of shells were determined in the same way after all epiphytic algae on the shells had been removed. Fences were constructed from woven stainless steel mesh (20 gauge and 8 mesh/inch, 2cm high) and attached to the substratum with stainless steel screws inserted into rawl plugs in the rock. In some experiments, the fences were covered with a wide-meshed (1 x 1cm), galvanised wire cage, usually 40 x 40cm and attached to the substratum in the same way as the fences. The cages excluded predatory fish and birds and protected the experiments from human interference.&rft.creator=Quinn, Gerry &rft.date=1985&rft.coverage=northlimit=-38.55; southlimit=-38.55; westlimit=145.40; eastLimit=145.40&rft.coverage=northlimit=-38.55; southlimit=-38.55; westlimit=145.40; eastLimit=145.40&rft_subject=biota&rft_subject=Oceans | Marine Biology | Marine Invertebrates | gastropoda | limpet&rft_subject=Biosphere | Zoology | Invertebrates&rft_subject=Oceans | Marine Biology | Marine Invertebrates&rft_subject=POPULATION DYNAMICS&rft_subject=EARTH SCIENCE&rft_subject=BIOSPHERE&rft_subject=ECOLOGICAL DYNAMICS&rft_subject=SPECIES/POPULATION INTERACTIONS&rft_subject=Biosphere | Ecological Dynamics | Feeding Habitat | food availabiltiy&rft_subject=Biosphere | Ecological Dynamics | Life History&rft_subject=Biosphere | Ecological Dynamics | Competition | intraspecific&rft_subject=Biosphere | Aquatic Habitat | Benthic Habitat | rocky shore&rft_subject=Griffith Point&rft_subject=San Remo&rft_subject=Siphonaria diemenensis&rft_subject=24 488001&rft.type=dataset&rft.language=English Access the data

Brief description

The ecology of 2 populations of the limpet Siphonaria diemenensis were investigated on the rocky intertidal shore at Griffith Point, San Remo, Victoria from 1979 to 1981. One population was on flat rock in the high intertidal area (Zone 1) and the other population was on the boulders in the low intertidal area (Zone 2). In Zone 1, there were 3 sites (combined area of 3.146 m2) and 12 permanently marked 0.25m2 quadrats and in Zone 2, there were 2 sites (combined area of 1.291m2).

The population dynamics of the limpets were investigated by measuring shell lengths and dry weights of individuals in the 2 zones. Fences were used to enclose limpets or exclude limpets from areas of the substratum. Details of each experiment are described in the related records.

Lineage

Shell lengths were measured to the nearest 0.1mm with vernier calipers. Dry tissue weights of limpets were determined by keeping the limpets in aerated seawater for 3 days after collection to clear the guts. The soft tissue was then removed and dried to a constant weight at 55 degrees celsius and weighed to the nearest 0.01mg. The dry weights of shells were determined in the same way after all epiphytic algae on the shells had been removed.

Fences were constructed from woven stainless steel mesh (20 gauge and 8 mesh/inch, 2cm high) and attached to the substratum with stainless steel screws inserted into rawl plugs in the rock. In some experiments, the fences were covered with a wide-meshed (1 x 1cm), galvanised wire cage, usually 40 x 40cm and attached to the substratum in the same way as the fences. The cages excluded predatory fish and birds and protected the experiments from human interference.

Notes

Credit
Littlejohn, Murray, Dr
Purpose
The three broad aims of this study were to investigate (1) the feeding ecology and food availability, (2) population dynamics and (3) reproductive patterns of the pulmonate limpet, Siphonaria diemenensis.

Issued: 30 05 1985

Data time period: 1979-12 to 1981-12

145.4,-38.55

145.4,-38.55

text: northlimit=-38.55; southlimit=-38.55; westlimit=145.40; eastLimit=145.40

Identifiers
  • global : 7423cda0-e59a-11dc-a14a-00188b4c0af8