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

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Table 4.3c. Regional group means and significance‐difference testing.Trip 1 –Liver form %abnormalLiver %discolouredParasites% > zeroMesentary fat(%)Fitzroy River / Bundaberg 0.9b18.2 5.6 75.6 aHamilton Pt / Calliope River 1.9 3.0 b 19.9 13.2 bUpper and Lower Boyne River 13.9 26.1 a 4.5a64.8Rodds Bay 0.0 0.0 b 28.6 3.4 bGladstone area (overall) 6.3 11.6 15.5 31.9Trip 2 –Fitzroy River / Bundaberg 2.8 b b24.4 b7.139.3 aHamilton Pt / Calliope River 0.0 b 2.5 a,b 55. 2 a 5.2 bUpper & Lower Boyne Rivera50.5 28.4 a 20. 1 b 47.1 aRodds Bay 0.0 b 0.0 b 49.6 a,b 3.4 bGladstone area (overall) 20.2 12.4 40.1 21.6a,b,c Within columns and trips, means for the individual regions which do not have a common superscriptletter are significantly different (P < 0.05).#For the overall ‘Gladstone area’ means, those which are bolded are significantly different from the meanfor the pooled reference sites (Fitzroy River / Bundaberg).5. SEPARATE ANALYSES FOR MULLET DATA5.1 Variables not analysedFor mullet, there were too few ‘non‐normal’ ratings to allow analyses of eye condition, general condition,heart condition, hindgut rating, abdomen condition and spleen rating.5.2 Overview of analysesFish length was confounded with species of mullet, so the analyses were not adjusted for this variable.Time since death was only included for the analyses of HAI index, and the laboratory‐rated condition forskin. ‘Disease status’, as assessed in the field, showed no significant effects ( Table 5.1).Table 5.1. Effects of disease status (field‐rated) on th e response variables.Sig. level Not disea sed # Diseased avg. s.e.Hepatosomatic index 0.84 1.53 1.38 0.07Condition score 0.62 1.52 1.45 0.04HAI score 0.89 19.6 21.8 3.8Fins % abnormal 0.76 6.1 5.4 2.7Gills % abnormal 0.88 15.9 14.1 4.2Kidney % abnormal 0.60 9.5 14.7 2.6Liver form % abnormal 0.66 12.0 9.9 3.8Liver colour % discoloured 0.44 15.8 11.1 4.4Parasites % > zero 0.68 1.1 1.4 1.2Mesentary fat (%) 0.15 13.1 7.0 2.9# as assessed in the field5.3 Location by trip meansThe categorical measures have again been analysed and listed here as the binary contrasts (per cent notnormal).Significant differences were found between locations in seven of the 13 analyses, trips in five,with a significant (P < 0.05) location by trip interaction in seven (54%). Again, Tables 5.2a to 5.2c listthese means on the ‘location by trip’ basis.121
Ta ble 5.2a. Effects of locations an d trips on the response variables.LocationT ripHepat.indexConditionfa ctorHAIscore% #diseased%skincond. > 0Fitzroy 1 0.89 1.46 5.7 100.0 100.0Bundy 1 1.22 1.62 15.7 25.0 25.0Calliope 1 1.75 1.66 24.0 0.0 0.0UpBoyne 1 0.81 1.42 0.0 0.0 0.0LwBoyne 1 0.96 1.43 13.7 0.0 0.0Rodds 1 1.52 1.61 2.9 0.0 0.0Fitzroy 2 1.57 1.31 19.9 54.6 54.6Bundy 2 1.07 1.54 3.0 20.0 20.0Calliope 2 2.06 1.51 24.0 45.5 45.5UpBoyne 2 1.64 1.35 35.5 10.0 10.0LwBoyne 2 2.54 1.65 44.8 40.0 40.0Rodds 2 1.46 1.57 17.1 0.0 0.0Sig. of ‐ Locations ** ** * ** *Trips ** **Interaction ** ** ** **# as assessed in the field; ** P < 0.01; * P < 0.05n the Ta ble 5.2b. Effects of locationsand trips o response variables.LocationT rip % # > 0 abnormalabnormalabnormalLesionsGills % Fins % Kidney %Fitzroy 1 0.0 10.0 20.0 0.0Bundy 1 0.0 25.0 12.5 0.0Calliope 1 0.0 14.3 14.3 0.0UpBoyne 1 0.0 0.0 0.0 0.0LwBoyne 1 0.0 10.0 0.0 0.0Rodds 1 0.0 20.0 0.0 0.0Fitzroy 2 9.1 27.3 0.0 0.0Bundy 2 0.0 10.0 0.0 0.0Calliope 2 0.0 49.1 20.0 0.0UpBoyne 2 10.0 10.0 0.0 60.0LwBoyne 2 0.0 10.0 0.0 20.0Rodds 2 0.0 0.0 20.0 10.0Sig. of ‐ Locations **Trips **Interaction# as assessed in the field; ** P < 0.01; * P < 0.05Ta ble 5.2c. Effects of locatio ns and trips on the response variables.LocationT ripLiver form %abnormalLiver %discolou redParasites% > zeroMesentaryfat (%)Fitzroy 1 0.0 10.0 10.0 0.0Bundy 1 0.0 31.3 0.0 39.1Calliope 1 14.3 14.3 0.0 28.6UpBoyne 1 0.0 0.0 0.0 5.0LwBoyne 1 0.0 0.0 0.0 0.0Rodds 1 10.0 50.0 0.0 22.5Fitzroy 2 18.2 27.3 0.0 2.3Bundy 2 0.0 0.0 0.0 0.0Calliope 2 0.0 0.0 0.0 7.7UpBoyne 2 30.0 0.0 10.0 0.0LwBoyne 2 50.0 30.0 0.0 0.0Rodds 2 0.0 0.0 0.0 37.5Sig. of ‐ Locations **T rips* **Interaction * ** **** P < 0.01; * P < 0.05122
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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
Page 75 and 76: Conditions observed in pelagic fish
Page 77 and 78: FinfishObservational findingsDuring
Page 79 and 80: ConclusionsIn 2011, a wide range of
Page 81 and 82: Mud crabsFisheries Queensland did n
Page 83 and 84: Owens, L. 1983. Bopyrid isopod Epip
Page 85 and 86: Candidate speciesThe monitoring pro
Page 87 and 88: 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: 4.5 Summarising by regionsThe means
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 and 140: Table 4. 1f. Muscle lesions.Fitzroy
Page 141 and 142: Table 5.6. Regiona l m eans for the
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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