Gladstone Fish Health Investigation 2011 - 2012 - Western Basin ...

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Contaminants in Tissue of Fish and Crabs Collected in the Gladstone AreaOverall (multivariate patterns)Table 3.3 lists the correlation coefficients, r, which show the direction and relative strength of therelationships.Table 3.3. Correlation matrix for the metals. Significant (P < 0.05) correlations have an absolutevalue > 0.294, and are indicated in bold.Aluminium 1.000Iron 0.639 1.000Copper 0.004 0.201 1.000Zinc 0.610 0.724 0.413 1.000Arsenic 0.375 0.634 0.307 0.656 1.000Selenium 0.346 0.569 0.791 0.659 0.670 1.000Cadmium 0.668 0.889 0.228 0.840 0.641 0.587 1.000Mercury 0.796 0.725 0.074 0.571 0.305 0.330 0.730Silver -0.058 -0.015 0.890 0.176 0.075 0.701 0.040Aluminium Iron Copper Zinc Arsenic Selenium CadmiumMercury 1.000Silver -0.028 1.000Mercury SilverThe relatively high degree of correlations amongst these nine metals means that the first twoprincipal components capture 80% of the total variation. This overall spatial representation is shownin Figure 3.1.Page 47
Department of Science, Information Technology, Innovation and the Arts2Boyne1Dimension 2 (19% variation)10-1-2Awonga1Fitzroy2Fitzroy1Boyne2Bundy1Hamilton2Hamilton1-3Bundy2-3 -2 -1 0 1 2 3 4 5Dimension 1 (61% variation)Figure 3.1. Movements of the overall location and trip principal component means inmultidimensional space for the barramundi liver samples. The Gladstone sites are indicated by thecircles with the solid lines, the reference sites by the squares with the dotted lines, and AwoongaDam (trip 1 only) by the star.Summarising by regionsAgain, the means for the individual locations can be combined into ‘Gladstone’ (Hamilton Pointand Upper Boyne River) vs. ‘Reference’ (Bundaberg and Fitzroy River), as listed in Table 3.4. Thedegree of difference between these regional means was determined with t-test.Page 48
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Department of Agriculture, Fisherie
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ContentsTable of tables 1Table of f
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Mullet (Mugilidae) 80Banana prawn (
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Figure 7. Barramundi caught in the
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Figure 38. Sharks caught in the Cal
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Phase 1 (August 2011-February 2012)
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The results in this study support t
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ecognised expertise and research pu
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Mr Mitchell reported high catches u
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Figure 2. Sampling sites within the
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Phase 2: Expanded Gladstone Fish He
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Mud crab (Scylla serrata): Mud crab
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For mud crabs, hepatopancreas, gill
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Table 2. The number of fish, crusta
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Significant findings and discussion
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Commercial barramundi catch and cat
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Figure 6. Eye condition observed in
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Conditions observed in barramundi s
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Figure 12. A barramundi caught in t
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provided another environmental stre
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was somewhat reduced because post-m
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4,000Commercial effort (days fished
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Size structure of mud crabs observe
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Figure 21. Examples of shell abnorm
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Of the 58 crabs observed to have sh
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HistopathologyLipid storage vacuola
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Commercial fishing effort for mulle
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Figure 28. (a) Mullet caught in Rod
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June/July: Mullet samples were coll
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Sharks and raysThe monitoring progr
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Observational findings Phase 1Phase
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Encysted larval parasites were foun
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in particular bull sharks, have bee
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Commercial banana prawn catch for t
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Observational findings Phase 2April
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Laboratory testing Phase 1Seven riv
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four displayed signs of redness. Th
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Conditions observed in pelagic fish
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FinfishObservational findingsDuring
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ConclusionsIn 2011, a wide range of
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Mud crabsFisheries Queensland did n
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Owens, L. 1983. Bopyrid isopod Epip
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Candidate speciesThe monitoring pro
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Table 1: Candidate species for each
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Sample processingSample processing
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Herring/grinner/Australian threadfi
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For example: the third specimen, re
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oooGonad - present/absentHepatopanc
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Cloudy eye,swollen,redness orhemorr
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Red pin pointmarks - nogeneral redn
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Lesion photos Description GradeThis
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L4continuedoperculumgrazing;cuts or
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Appendix A-3: Fish health assessmen
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Appendix B - Statistical report: Gl
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analyses, but this was not done for
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was a significant (P < 0.05) locati
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Percentage with fin condition > 015
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Table 3.6b. Effects of locations an
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Table 3.7d. Spleen categories - cou
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32Bundy2Bundy1UpBoyne1UpBoyne2LwBoy
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Table 3.9c. Regional group means an
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Table 4.2c. Effects of locations an
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4.5 Summarising by regionsThe means
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Ta ble 5.2a. Effects of locations a
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5.5 Summarising by regionsThe means
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6.3 ResultsThere was no significant
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Table 6.5 lists the mean values whe
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Standardized residualsStandardized
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Table 2.3f. Muscle lesions.Lake Fit
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Table 4. 1f. Muscle lesions.Fitzroy
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Table 5.6. Regiona l m eans for the
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Contaminants in Tissue ofFish and C
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Page 151 and 152: Department of Science, Information
Page 195: Department of Science, Information
Page 203 and 204: Appendix E - Time line BarraBy John
Page 205 and 206: friends. Rapidly rising flood water
Page 207 and 208: To make note - condition loss was e
Page 209 and 210: May/June- FinsMy initial observatio
Page 211 and 212: Thes e escapee were now also in awo
Page 213 and 214: Figure N. Barramundi showing net ma
Page 215 and 216: September- Deaths and SicknessFigur
Page 217 and 218: There is numerous distinguishing fe
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Gladstone Fish Health Investigation 2011 - 2012 - Western Basin ...

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