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

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Table 5. 3b. Gill hy perplasia.Bundaberg FitzroyRiverThe NarrowsP ort AreaAvg . s.e.Trip 1 1.00 ab 0.01 d 0.30 bcd 0 .83 abc 0.26Trip 2 1.00 ab 0.32 bcd 0.68 abcd 1.24 aTable 5. 3c. Gill parasites.Bundaberg Fitzroy RiverThe NarrowsPort AreaAvg . s.e.Trip 1 1.30 a 1 .02 ab 0.31 b 0.69 ab 0.27Trip 2 0.57 ab 0.34 b 0.50 ab 0.72 abTable 5. 3d. Hepatopancreas.Bundaberg Fitzroy River The NarrowsPort AreaAvg . s.e.Trip 1 0.00 0.00 0.08 0.00 0.08Trip 2 0.00 0.00 0.00 0.00Table 5. 3e. Heart.Bundaberg Fitzroy River The NarrowsPort AreaAvg . s.e.Trip 1 0.00 0.00 0.08 0.00 0.21Trip 2 0.00 0.33 0.00 0.46 0.00Table 5. 3f. Cuticle lesions.Bundaberg Fitzroy RiverThe NarrowsPort AreaA vg.s.e.Trip 1 0.025 0.020 0.000 0.000 0.083Trip 2 0.058 0.055 0.000 0.000Table 5. 3g. Mu scle l esions.Bundaberg Fitzroy RiverThe NarrowsPort AreaAvg . s.e.Trip 1 0.00 c 1.85 a 0.04 c 0.00 c 0.25Trip 2 0.00 c 0.95 b 0.00 c 0.00 cThere was no significant effect (P = 0.18) of location on the classification of hepatopancreas lipid. Table5.4 shows that the counts by locations are well distributed across the lipid categories.T able 5.4. Counts for hepatop ancreas lipid categories by locations.Bundaberg Fitzroy RiverThe Narrows Port AreaAbsent 0 0 1 2Mild 6 3 6 3Moderate 3 6 2 2As shown in Table 5.5, there was a significant effect (P = 0.006) of trip on the classification ofhepatopancreas lipid, with a shift of numbers from moderate to mild. These patterns are more fullyexplored below, at the regional level.T able 5.5. Counts for hepatopa ncreaslipid categories by trips.Trip 1 Trip 2Absent 3 0Mild 5 13Moderate 10 3Summarising by regionsThe means for the locations can be combined into ‘Gladstone’ (the Narrows plus the Port area) vs.‘ Reference’ (Bundaberg and Fitzroy River), as listed in Table 5.6. The three significant differences all occurontrip 1, and interestingly all show higher values from the reference sites.135
Table 5.6. Regiona l m eans for the histology ratings. Within trips, significant (P < 0.05) differences arebolded.Trip 1 – T rip 2 –ReferenceGladstoneSig. levelReferenceGladstoneSig.levelCumulative score 3.18 1.40 0.015 1.55 1.88 0.887Gill hyperplasia 0.51 0.56 0.819 0.66 0.96 0.287Gill parasites 1.16 0.50 0.015 0.46 0.61 0.597Hepatopancreas 0.00 0.04 0.596 0.00 0.00 1.000Heart 0.00 0.04 0.792 0.16 0.23 0.840Cuticle lesions 0.02 0.00 0.778 0.06 0.00 0.523Muscle lesions 0.92 0.02 0.000 0.47 0.00 0.105Considering the hepatopancreas lipid categories over trips separately for each region, Table 5.7 showsthere was no significant change (P = 0.13) for the Gladstone region, with only some interchange in thenumbers between the absent and mild categories. Overall, only 25% were rated as moderate forhepatopancreas lipid.T able 5.7. Gladsto ne region ‐ counts for hepatopancreas lipid categories by trips.Trip 1 Trip 2Absent 3 0Mild 3 6Moderate 2 2Table 5.8 shows there was a significant change (P = 0.017) between the trips for the reference region. Intrip 1, eight out of ten crabs were rated as moderate, but this dropped to one from eight for trip 2. Overall,50% of the mudcrabs from the reference region were rated as moderate for hepatopancreas lipid.T able 5.8. Referen ce region ‐ counts for hepatopancreas lipid categories by trips.Trip 1 Trip 2Absent 0 0Mild 2 7Moderate 8 1ReferencesGenStat (2011). GenStat for Windows, Release 14.1. VSN International Ltd., Oxford.McCullagh, P. and Nelder, J. A. (1989). Generalized Linear Models (2 nd ed.). Chapman and Hall, London.Raj, D. (1968). Sampling theory. McGraw‐Hill, New York.136
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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
Page 89 and 90: Sample processingSample processing
Page 91 and 92: Herring/grinner/Australian threadfi
Page 93 and 94: For example: the third specimen, re
Page 95 and 96: oooGonad - present/absentHepatopanc
Page 97 and 98: Cloudy eye,swollen,redness orhemorr
Page 99 and 100: Red pin pointmarks - nogeneral redn
Page 101 and 102: Lesion photos Description GradeThis
Page 103 and 104: L4continuedoperculumgrazing;cuts or
Page 105 and 106: Appendix A-3: Fish health assessmen
Page 107 and 108: Appendix B - Statistical report: Gl
Page 109 and 110: analyses, but this was not done for
Page 111 and 112: was a significant (P < 0.05) locati
Page 113 and 114: Percentage with fin condition > 015
Page 115 and 116: Table 3.6b. Effects of locations an
Page 117 and 118: Table 3.7d. Spleen categories - cou
Page 119 and 120: 32Bundy2Bundy1UpBoyne1UpBoyne2LwBoy
Page 121 and 122: Table 3.9c. Regional group means an
Page 123 and 124: Table 4.2c. Effects of locations an
Page 125 and 126: 4.5 Summarising by regionsThe means
Page 127 and 128: Ta ble 5.2a. Effects of locations a
Page 129 and 130: 5.5 Summarising by regionsThe means
Page 131 and 132: 6.3 ResultsThere was no significant
Page 133 and 134: Table 6.5 lists the mean values whe
Page 135 and 136: Standardized residualsStandardized
Page 137 and 138: Table 2.3f. Muscle lesions.Lake Fit
Page 139: Table 4. 1f. Muscle lesions.Fitzroy
Page 143 and 144: Contaminants in Tissue ofFish and C
Page 145 and 146: Contaminants in Tissue of Fish and
Page 151 and 152: Department of Science, Information
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Department of Science, Information
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Appendix E - Time line BarraBy John
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friends. Rapidly rising flood water
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To make note - condition loss was e
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May/June- FinsMy initial observatio
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Thes e escapee were now also in awo
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Figure N. Barramundi showing net ma
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September- Deaths and SicknessFigur
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There is numerous distinguishing fe
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Department of Agriculture, Fisherie
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Gladstone Fish Health Investigation 2011 - 2012 - Western Basin ...

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