Keyword

Oceans | Marine Biology | Marine Invertebrates

41 record(s)
 
Type of resources
Topics
Keywords
Contact for the resource
Provided by
Years
From 1 - 10 / 41
  • The Guide to the Marine Zooplankton of south eastern Australia, is an interactive tool providing a comprehensive, fully illustrated means of identification for the major zooplankton located in south eastern Australia. This new identification guide to local marine zooplankton is available online at: http://www.imas.utas.edu.au/zooplankton This is the result of collaboration between the Marine Research Laboratories and School of Zoology, University of Tasmania, and the Australian Antarctic Division. Please note that the full contents of the site will be available on (Free) CD-Rom

  • Growth models were constructed for two sea urchin populations over a two-year period using a tag-recapture study in the Mercury Passage, Tasmania. Sea urchins were tagged using tetracycline and calcein and growth models constructed using measurements taken from sea urchin jaws.

  • The aim of this study is to use artificial boulders in the form of sandstone blocks to investigate the benthic cryptofaunal communities of subtidal rocky reefs; specifically to quantify temporal and spatial patterns, the influence of the sub-block reef profile, and protection from fishing on these animals at locations inside and external to the Maria Island marine reserve in eastern Tasmania.

  • Underwater visual census surveys were conducted at 15 sites in eastern Tasmania to quantify the abundance of the sea urchin Heliocidaris erythrogramma and several putative predators.

  • The abalone commercial catch sampling project contains length-based samples from diver catches collected in Tasmania waters.

  • Sea urchin tagged using tetracycline display visible marks in jaw elements and test plates that can be used to determine growth and subsequently an individuals age. Natural growth lines in the same structures can be used to determine age if natural lines are deposited at a consistent rates independent of age. Sea urchins were tagged using tetracycline and age determined from both fitted growth models and the number of bands deposited. Rates of natural line deposition were also quantified.

  • The movement and behaviour of the Southern Rock Lobster (Jasus edwardsii) was monitored using a radio acoustic telemetry systems at two sites in eastern Tasmania.

  • Rock Platforms on Tasmania's east coast, Flinders Island, and the north coast as far west as Port Sorell, were surveyed between December 1995 and September 1996. At each of 51 sites two transects were sampled using quadrats. All animals and plants were counted, or in the case of sessile species, their cover was estimated.

  • Sandy beaches on the north and west coasts of Tasmania, and on Flinders and King Islands were sample between October 1996 and August 1997. At each of 102 sites the strandline fauna was sampled using pitfall traps set overnight during the low tide period. A number of physical and biotic characteristics of each beach were also measured.

  • Southern Rock Lobster (Jasus edwardsii) biological data collected by observers on commercial boats and dedicated research trips incorporating information on sex, length, weight, damage, reproduction, bycatch, protected species interaction, location, depth, tagging and equipment type.