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

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Contaminants in Tissue of Fish and Crabs Collected in the Gladstone AreaTable 3.4. Regional means for the metal concentrations (dry-weight basis). Within trips, significant(P < 0.05) differences are bolded.Trip 1 – Trip 2 –Reference Gladstone Sig. level Reference Gladstone Sig. levelAluminium 2.44 3.30 0.390 2.24 3.97 0.093Iron 1695 2782 0.046 969 1550 0.284Copper 45.7 37.4 0.726 34.8 19.7 0.529Zinc 67.9 89.8 0.124 42.7 71.5 0.048Arsenic 5.37 7.68 0.140 2.52 6.13 0.026Selenium 4.69 6.47 0.287 4.41 4.96 0.744Cadmium 0.118 0.196 0.035 0.068 0.119 0.165Mercury 0.748 0.779 0.911 0.396 0.586 0.482Silver 0.163 0.141 0.867 0.245 0.151 0.4964. RESULTS – GRINNER, MUSCLELocation by trip meansThese are listed in Tables 4.1a to 4.1g. For each metal, significant-difference testing has beenconducted amongst these means (locations by trips). Due to the unbalanced nature of the samplingfor grinner, with only one Gladstone and one reference site for trip 1, and one Gladstone and tworeference sites for trip 2, no ‘regional comparisons’ have been done. Any such differences can bejudged by the significant differences between the sites (within each trip). It is notable that for thefirst four metals the reference site of Bundaberg (which was only sampled on trip 2) hadsignificantly higher levels than all other sites, across both trips. Within trips, there were no instanceswhere the levels at Gladstone were significantly higher than the levels at either of the referencesites.Table 4.1a. Aluminium.Bundaberg Fitzroy River Gladstone Harbour Average s.e.Trip 1 3.8 b 1.9 b 3.9Trip 2 23.2 a 5.1 b 5.4 ba,b means with a common superscript are not significantly different (P = 0.05).Table 4.1b. Iron.Bundaberg Fitzroy River Gladstone Harbour Average s.e.Trip 1 12.9 b 8.8 b 6.0Trip 2 44.5 a 8.6 b 13.7 bTable 4.1c. Copper.Bundaberg Fitzroy River Gladstone Harbour Average s.e.Trip 1 0.89 b 0.68 b 0.15Trip 2 1.81 a 0.92 b 1.07 bTable 4.1d. Zinc.Bundaberg Fitzroy River Gladstone Harbour Average s.e.Trip 1 21.9 b 17.8 b 3.1Trip 2 36.8 a 20.9 b 25.4 bPage 49
Department of Science, Information Technology, Innovation and the ArtsTable 4.1e. Arsenic.Bundaberg Fitzroy River Gladstone Harbour Average s.e.Trip 1 6.83 ab 10.27 a 1.88Trip 2 7.63 ab 3.34 b 7.49 abTable 4.1f. Selenium.Bundaberg Fitzroy River Gladstone Harbour Average s.e.Trip 1 2.35 ab 2.41 a 0.13Trip 2 2.03 b 2.44 a 2.37 abTable 4.1g. Mercury.Bundaberg Fitzroy River Gladstone Harbour Average s.e.Trip 1 0.147 a 0.189 a 0.050Trip 2 0.121 a 0.225 a 0.250 aOverall (multivariate patterns)Relationships amongst the metals are measured by the correlation coefficient, r, as listed in Table4.2.Table 4.2. Correlation matrix for the metals. Significant (P < 0.05) correlations have an absolutevalue > 0.398, and are indicated in bold.Aluminium 1.000Iron 0.665 1.000Copper 0.735 0.693 1.000Zinc 0.491 0.785 0.811 1.000Arsenic -0.036 0.180 0.106 0.145 1.000Selenium -0.192 -0.169 -0.203 -0.282 0.014 1.000Mercury -0.285 -0.355 -0.347 -0.351 -0.260 0.126 1.000Aluminium Iron Copper Zinc Arsenic Selenium MercuryGiven there are only seven metals and that some high correlations exist amongst these, the first twoprincipal components capture 92% of the total variation. This overall spatial representation is shownFigure 4.1. As was apparent in Table 4.1, the major difference appears to be between Bundabergand the other sites.Page 50
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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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Contaminants in Tissue of Fish and
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Page 149 and 150: Contaminants in Tissue of Fish and
Page 151 and 152: Department of Science, Information
Page 197: 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
Page 219: Department of Agriculture, Fisherie
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