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Department of Zoology, The University of Melbourne

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65 jeux de données trouvés

  • The importance of predation in shaping marine sessile communities at Queenscliff, Victoria

    Australian Ocean Data Network (AODN)

    Predation on newly settled individuals has been shown to shape marine sessile invertebrate communities of the northeast coast of North America. This study tests if this response can also be observed at other geographic locations that support different…

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  • The population dynamics of the gastropod Lepsiella vinosa on the West Head rocky shore in Victoria

    Australian Ocean Data Network (AODN)

    This study surveyed the size distribution of Lepsiella vinosa at 3 sites on the rocky shore at West Head, Victoria. Monthly or bi-monthly searchers were conducted from June 1975 to August 1978 during spring low tide. Every individual L.vinosa found at the 3…

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  • The role of copper in facilitating the invasion of sessile marine invertebrate communities by pests: effects of copper pulse frequency in developing assemblages

    Australian Ocean Data Network (AODN)

    Disturbance events are thought to provide an opportunity for the colonisation and establishment of invasive species. Contamination of coastal waters with copper from sewage outfall and antifouling paints may create a disturbance that favours the establishment…

    Abondance et distribution des invertébrés HTML

  • Spatial Distributions of Plankton in Shark Bay, Western Australia - 1983

    Australian Ocean Data Network (AODN)

    During June 1983, the abundance and diversity of zooplankton were sampled at a series of locations though Shark Bay, Western Australia. High-salinity experiments were also conducted on certain zooplankton to determine abundance patterns for individual species.

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  • Effects of human activities on intertidal gastropods

    Australian Ocean Data Network (AODN)

    This data was collected to investigate the relationship between human activities and size distribution of gastropods on rocky shores. It was predicted that there would be a negative correlation between the level of human activity and the average size of…

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  • Feeding patterns of the gastropod Lepsiella vinosa on the West Head rocky shore in Victoria

    Australian Ocean Data Network (AODN)

    This study used observations of Lepsiella vinosa and surveys of prey species to describe the diet of L.vinosa on rocky shore at West Head, Victoria. The numbers of individual L.vionsa observed feeding were recorded during the surveys of Site 1 and Site 2 from…

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  • Variation in maternal provisioning in Watersipora subtorquata

    Australian Ocean Data Network (AODN)

    A number of marine organisms do not provide any resources for their offspring other than the initial investment in larva. The extent of larval provisioning can be a strong determinant of larval fitness. Considerable variation in larval provisioning has been…

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  • The importance of predation in shaping marine sessile communities at Williamstown, Victoria

    Australian Ocean Data Network (AODN)

    Predation on newly settled individuals has been shown to shape sessile invertebrate communities of the northeast coast of North America. This study tests if this response can also be observed at other geographic locations that support different assemblage of…

    Abondance et distribution des invertébrés HTML

  • Effects of environmental factors on the distribution of shrimp in Western Port Bay, Victoria

    Australian Ocean Data Network (AODN)

    This study investigated the influence of environmental factors on the distribution of shrimp in Western Port Bay from July 1977 to January 1980. Water temperature, salinity and oxygen concentrations at the sediment surface were measured from a boat at high…

    Composition et couverture des herbiers marinsAbondance et distribution des invertébrés HTML

  • Comparing the effects of an introduced and native species of bryozoan

    Australian Ocean Data Network (AODN)

    An experiment was conducted to compare the effects of the introduced bryozoan, Bugula neritina, and the native bryozoan, Bugula dentata, on sessile invertebrate assemblages. Individuals of both species were collected from Workshops Jetty and Altona Pier prior…

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  • Growth rate of the gastropod Lepsiella vinosa on the West Head rocky shore in Victoria

    Australian Ocean Data Network (AODN)

    This study used a mark-recapture method to examine the patterns of shell growth of Lepsiella vinosa on the rocky shore at West Head, Victoria. Individuals were collected from the West Head shore on 24th March 1974 and 29th May 1975. They were transported back…

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  • Effects of predation by fishes on the epifaunal community at Portsea, Victoria.

    Australian Ocean Data Network (AODN)

    Exclusions were attached to artificial substrata to investigate the relative effects of predation on the development of epifaunal communities at Portsea. Exclusions were black plastic mesh cages enclosing panels that were attached to rigs under the Portsea…

    Abondance et diversité de poissonsAbondance et distribution des invertébrés HTML

  • Effects of introduced sessile invertebrates: removal experiments.

    Australian Ocean Data Network (AODN)

    Three removal experiments were conducted to test the effects of the introduced species, Bugula neritina, Ascidiella aspersa and Botryllus schlosseri on sessile invertebrate assemblages. Each experiment was run for approximately 2 months between 28th November…

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  • Responses of Bugula neritina, an arborescent bryozoan, to the removal of growing tips at different locations within the colony

    Australian Ocean Data Network (AODN)

    For colonial organisms physical damage or predation can result in the loss of part of the colony. Although the colony may survive, the loss of part of the colony may alter patterns of growth and reproduction. In this study the response of Bugula neritina, an…

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  • Population dynamics of shrimp populations in Western Port Bay, Victoria

    Australian Ocean Data Network (AODN)

    This study investigated seasonal variation in the abundances and size distribution of shrimp species in Western Port Bay, Victoria from July 1977 to January 1980. Four species, Macrobrachium intermedium, Pontophilus candidus, Hippolyte caradina and…

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  • Patterns of development in the epifaunal community at Portsea, Victoria.

    Australian Ocean Data Network (AODN)

    This experiment examined the temporal changes in species composition and diversity of a developing epifaunal community on artificial substrata at Portsea. The substrata used were the bare uncaged panels and cage control panels used in the experiment described…

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  • Patterns of recruitment of epifaunal species at Portsea, Victoria.

    Australian Ocean Data Network (AODN)

    This study investigated the temporal and spatial patterns of recruitment of epifaunal species at Portsea. Recruitment panels were immersed at depths of 1 - 2.2 metres for 10 months (25/10/1975 - 11/9/1976) and 24 months (16/11/1977 - 14/11/1979) and at depths…

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  • Mortality of the gastropod Lepsiella vinosa on the West Head rocky shore in Victoria

    Australian Ocean Data Network (AODN)

    This study investigated mortality of egg capsules, juveniles, and adult Lepsiella vinosa on the rocky shore at West Head, Victoria. Observations conducted between 1974 and 1979 indicated that polychaetes, nematodes, nemerteans, planarians and mollusks all prey…

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  • Competitive interactions in the epifaunal community at Portsea, Victoria.

    Australian Ocean Data Network (AODN)

    The resource provides information on the rates of growth, competitive ability and life spans of species in the epifaunal community at Portsea. Estimates of rates of growth for all species were collected from panels immersed on 16/11/1977 except for the common…

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  • Diets of four shrimp species in eelgrass habitats, Western Port Bay, Victoria

    Australian Ocean Data Network (AODN)

    This study examined stomach contents of shrimp sampled in the beam trawls in Western Port Bay from July 1977 to January 1980 (see parent record 'The ecology and trophic role of caridean shrimps in the eelgrass community of Western Port, Victoria', File…

    Composition et couverture des herbiers marinsAbondance et distribution des invertébrés HTML