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

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o lesions present/absent (estimated % shell affected)o fouling of the shell present/absentAll specimens selected for further testing were allocated a specimen number andphotographed (specimen identification number label visible in all images).Live crabs were submitted for necropsy examination by Biosecurity Queensland.Banana prawns Carapace length (notch at base of rostrum to posterior margin of carapace) Shell lesions or erosion present/absent Visible parasites present/absent All specimens selected for further testing were allocated a specimen identificationnumber and photographed on both sides with close-up images captured ofabnormalities (specimen identification number label visible in all images). Thesespecimens were processed immediately after capture onboard the trawler by aveterinarian with aquatic animal health expertise.o Shell condition was rated and any lesions or irregularities photographed.Swabs were taken for bacteriology testing of any major lesions.o Cephalothorax/ hepatopancreas was injected with 1-2 ml 10% formalin.Prawns were cut through with a scalpel immediately posterior to thecephalothorax. Shell covering gills was removed on one side, heads fixedwhole in 50 ml 10% formalin fixative (see photo 1).o Tails were frozen for residue testing in separate containers.Photo 1: Injecting the cephalothorax of a banana prawn with 10% formalin, and removing the gill cover tooptimize fixation of tissues.85
Herring/grinner/Australian threadfin Length (forklength) was measured to the nearest 1 mm Skin and eye condition was classified according to Attachment 1 All specimens selected for further testing were allocated a specimen identificationnumber, photographed on both sides with close-up images captured of abnormalities(specimen identification number label visible in all images) and euthanized (severespinal cord behind head). These specimens were processed immediately aftercapture onboard the trawler by veterinarian with aquatic animal health expertise.o As much muscle as possible/practical was removed without rupturing the gutcavity and frozen for potential future chemical residue testing (see photo 2).This aimed to achieve of two aliquots each containing at least 10 g (wherepossible).o Operculum cover was removed on one side and the abdomen opened withscissors without rupturing any organs. The whole fish (minus muscle sample)was placed in formalin for potential histology, noting that the ratio of tissue :fixative should not exceed 1:10.Photo 2: Obtaining muscle samples for residue testing without disturbing the internal organs.86
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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
Page 39 and 40: provided another environmental stre
Page 41 and 42: was somewhat reduced because post-m
Page 43 and 44: 4,000Commercial effort (days fished
Page 45 and 46: Size structure of mud crabs observe
Page 47 and 48: Figure 21. Examples of shell abnorm
Page 49 and 50: Of the 58 crabs observed to have sh
Page 51 and 52: HistopathologyLipid storage vacuola
Page 53 and 54: Commercial fishing effort for mulle
Page 55 and 56: Figure 28. (a) Mullet caught in Rod
Page 57 and 58: June/July: Mullet samples were coll
Page 59 and 60: Sharks and raysThe monitoring progr
Page 61 and 62: Observational findings Phase 1Phase
Page 63 and 64: Encysted larval parasites were foun
Page 65 and 66: in particular bull sharks, have bee
Page 67 and 68: Commercial banana prawn catch for t
Page 69 and 70: Observational findings Phase 2April
Page 71 and 72: 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: Sample processingSample processing
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 and 140: 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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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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