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

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4.4 Overall (multivariate patterns)The principal components spatial representation of the combined data is shown in Figure 4.1.4UpBoyne23Rodds2Dimension 2 (25% variation)210-1Hamilton2Rodds1LwBoyne2UpBoyne1LwBoyne1Fitzroy2Bundy1Awoonga1Bundy2Fitzroy1-2Hamilton1Calliope2Calliope1-6 -5 -4 -3 -2 -1 0 1 2 3Dimension 1 (38% variation)Figure 4.1. Movements of the overall location and trip principal component means for barramundi inmultidimensional space. The reference sites are indicated by the squares with the dottedlines.Most points are in the lower‐right region, reasonably close to the reference sites. The ‘slightly‐removed’group at the bottom (Rodds Bay Trip 1, and Calliope and Hamilton Trip 2) generally represent ‘good‐most abnormality quality’ fish, with low scores for HAI and rates.The most notable outlying points are –Rodd’s Bay (Trip 2) – this total sample consisted of only two fish, both of which were diseased, so thesegave ‘poor quality’ values across most of the variables.Upper Boyne (both trips) – generally had higher values for most variables, except this site did have zeroparasites.Lower Boyne, Trip 1 – had high HAI and lesions; however by trip 2 this site had ‘reverted’ back into thegeneral pack.Samples from the Harbour (Trip 1 only) were not submitted to the laboratory, hence for this locationthere are only values for field‐assessed disease, skin condition and lesion ratings. Based on these threevariables, the barramundi from the Harbour were very similar to those sampled from the Fitzroy River onTrip 1.119
4.5 Summarising by regionsThe means for the individual locations have again been combined into regional groupings, and also intothe overall Gladstone area. These are listed in Tables 4.3a to 4.3c.Table 4.3a. Regional group means and significance‐difference testing.Hepat.ConditionHAI% % skinTrip 1 –indexfactor scorediseased cond. > 0Fitzroy River / Bundaberg 1.15 a 1.36 a 19.3 b b19.118.6Hamilton Pt / Calliope River 0.96 b 1.13 b 12.8 b 14. 1 b 12.1Upper and Lower Boyne R 1.14 a 1.22 b 44.7 a 59. 6 a 10.8Rodds Bay 1.25 a 1.16 b 12.7 b 42.2 a,b 42.6Gladstone area (overall) # 1.09 1.17 25.6 37.9 17.7Trip 2 –Fitzroy River / Bundaberg 1.28 a 1.38 a 24.3 b c21.214.7 cHamilton Pt / Calliope River 1.03 b 1.21 b 16.6 b c38.9 43.0 bUpper and Lower Boyne River 1.31 a 1.24 b 39.3 a b52.540.5 Rodds Bay 1.06 a,b 0.93 c 19.5 a,b 99.9 a 99.9 aGladstone area (overall) # 1.15 1.17 26.3 56.5 53.4a,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).Table 4.3b. Regional group means and significance‐difference testing.LesionsGills % Fins % AbdomenTrip 1 –% # > 0 abno rmal abnormal % tuckedFitzroy River / Bundaberg 0.0 b 15.0 a,b 9.5b4.5Hamilton Pt / Calliope River 0.0 b b15.0 21.6a32.5Upper and Lower Boyne Rivera57.8 25.0 a 12.1a32.5Rodds Bay 0.0 b 0.0 b 13.1 27.9 a,bGladstone area (overall) 23.1 16.0 16.1 31.6Trip 2 –Fitzroy River / Bundabergc17.6 17.1 0.0 b a20.2Hamilton Pt / Calliope River 11.2 c 0.0 0.0 b a37.6Upper and Lower Boyne River 40.7 b 8.3 18.6 b 29.4 aRodds Bay 99.9 a 0.0 99.9 a 0.0 bGladstone area (overall) 40.77 3.3 27.4 26.8a,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 R / Bundaberg).120
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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
Page 73 and 74: 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: Table 4.2c. Effects of locations an
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 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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