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

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Contaminants in Tissue of Fish and Crabs Collected in the Gladstone Area2. Sampling SitesSampling was undertaken at eight sites during two sampling trips. The first sampling trip occurredbetween late April and early May 2012 and the second occurred between mid-June and early July2012. Three species were collected for tissue residue analysis and the sites they were collected atare summarised in Table 1 and the sites are illustrated in Figure 1. Sites that are considered to bereference sites in terms of dredging were Fitzroy River and Bundaberg. Awoonga Dam wasincluded for comparison.Table 1 – Sites where species used for tissue residue analysis were collectedSiteSpecies collectedMud crabs(Scylla serrata)Barramundi(Latescalcarifer)Grinner(Saurida sp.)Awoonga Dam •Upper Boyne River 1 •Port Development Area 1 •Hamilton Point 1 •The Narrows 1 •Gladstone Trawl 1, 3•Fitzroy River 2 • • •Bundaberg 2 • • •Note: Black circles indicate the species collected at each site. 1 Denotes Gladstone sites, 2 denotes referencesites. Awoonga Dam was excluded from of the comparison of reference vs. Gladstone sites as it is considered aseparate reference site (i.e. is a freshwater system and it will not be impacted by water quality from GladstoneHarbour), 3. This denotes samples collected by trawling within Gladstone Harbour.Page 3
Department of Science, Information Technology, Innovation and the ArtsFigure 1 – Sampling sites for the tissue t residue program. Note that this figure shows the locations ofall sites sampled for the Expanded Gladstonee Fish Health Survey. Note: N only those sites included inTable 1 were part of the tissue residue study. .Page 4
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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
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
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: Department of Science, Information
Page 155 and 156: 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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