DEPARTMENT OF FISHERIES ANNUAL REPORT TO THE ...

More documents

Recommendations

Info

AgENCy PERFORMANCE � CASE STUDy 4 Current over summer, associated with the very strong La Niña weather event. During the heatwave, there were a number of fish kills along the mid-west coast and in the Abrolhos, Kalbarri and Leeman areas, which appear to have been caused by low oxygen levels brought on by high water temperatures and hot, still weather. Western rock lobster and abalone deaths were also reported in areas of warmer water associated with calm conditions. Climatic variability has a strong influence on many biological processes off the west coast of WA. Recruitment of juvenile rock lobster into adult stocks is affected by climatic factors including water temperatures and the strength of the Leeuwin Current (which strengthens during La Niña events, but weakens during El Niño events). Whilst high recruitment of western rock lobster is influenced by a strong Leeuwin Current and the associated higher water temperatures, there is evidence that increases in water temperature can result in a decrease in the size of rock lobsters at maturity. During March 2011, the Department of Fisheries announced its researchers were combining with the CSIRO in a three-year project to closely examine the effects of climate change on Western Australia’s marine environment. The $450,000 project, funded by the Australian Government’s Fisheries and Research Development Corporation, the Department of Fisheries (WA) and the CSIRO, utilises oceanographic modeling and an 99 understanding of environmental effects on fisheries using case studies. In WA this project will be used to assess the vulnerability to climate change of fish stocks such as western rock lobster, blue swimmer crab, tailor and dhufish. Climate change affects life cycles of fish stocks by altering seasonal cycles and long-term trends of the physical environment. Any long-term changes in the abundance of fish stocks as the result of climate change may require an adjustment in fishing effort or catch quota, in order that the fish stocks remain sustainable. Figure 39 on page 97 features a graduated temperature scale indicating the average sea surface temperatures recorded over that month. The darkest blue/purple shade indicates water of normal temperature (ie. what you would usually expect to see). The yellow and orange areas indicate water of much higher than usual temperature (2.5 to 3.5 degrees above normal). Figure 39 also shows the movement of the body of water from well off the north-west coast (about 400 km offshore) in November 2010 through to a significant intensification in January 2011, where it is seen to be directly hugging the Gascoyne coastline. By February it has enlarged and extends from Ningaloo to south of Mandurah. By March the coverage was still extensive but the very high temperatures had fallen.
AgENCy PERFORMANCE � SERvICE 4 - MARINE SAFETy SERvICE During 2010/11, the Department of Fisheries took part in a joint marine safety exercise with the Department of Transport, Police Air Wing, Peel Water Police and Sea Rescue to practice winding people on and off vessels. Above: a man being winched off a vessel. Right: the exercise viewed from a Department of Fisheries vessel. Service 4 – Marine Safety Service the marine safety compliance service is delivered by Fisheries and Marine Officers within the Department’s Regional Services Branch on behalf of the Department of transport. These services are primarily provided within the Metropolitan Region (Lancelin to Mandurah) and include both at-sea and boat ramp checks to ensure Masters and persons in charge of vessels are complying with relevant marine safety legislation. Most of these services are targeted at recreational boat users but some commercial inspections also occur when the situation permits. As many of these services are delivered in conjunction with a fisheries compliance service, they are delivered effectively and efficiently in line with government policy. The Department of Fisheries is working closely with the Department of Transport on policy matters, such as the introduction of marine safety single national jurisdiction under the Commonwealth by 2013, that may affect clients and our own maritime operations. 100
Page 1 and 2:
DEPARTMENT OF FISHERIES ANNUAL REPO
Page 3 and 4:
CONteNtS SummAry of the yeAr ......
Page 5 and 6:
SUMMARy OF THE yEAR � FROM THE CH
Page 7 and 8:
Page 9 and 10:
Page 11 and 12:
SUMMARy OF THE yEAR � HIgHLIgHTS
Page 13 and 14:
SUMMARy OF THE yEAR � STOCk STATU
Page 15 and 16:
fishery Stock assessment complete B
Page 17 and 18:
fishery South Coast Bioregion South
Page 19 and 20:
SUMMARy OF THE yEAR � FINANCIAL O
Page 21 and 22:
Page 23 and 24:
Page 25 and 26:
Page 27 and 28:
Page 29 and 30:
Page 31 and 32:
Page 33 and 34:
Page 35 and 36:
Page 37 and 38:
Page 39 and 40:
Page 41 and 42:
SUMMARy OF THE yEAR � FISH PIES (
Page 43 and 44:
Page 45 and 46:
Page 47 and 48:
Key compliance statistics - 2008/09
Page 49 and 50:
OvERvIEw OF AgENCy In 2010/11 a com
Page 51 and 52: OvERvIEw OF AgENCy � PROFILE OF T
Page 53 and 54: OvERvIEw OF AgENCy � PROFILE OF T
Page 55 and 56: OvERvIEw OF AgENCy � OPERATINg EN
Page 57 and 58: OvERvIEw OF AgENCy � OPERATIONAL
Page 59 and 60: OvERvIEw OF AgENCy � CORPORATE Ex
Page 61 and 62: OvERvIEw OF AgENCy � CORPORATE Ex
Page 63 and 64: OvERvIEw OF AgENCy � PERFORMANCE
Page 69 and 70: AgENCy PERFORMANCE � AgENCy PERFO
Page 71 and 72: AgENCy PERFORMANCE � SERvICE 1 -
Page 83 and 84: AgENCy PERFORMANCE � CASE STUDy 1
Page 91 and 92: CASE STUDy 3 AgENCy PERFORMANCE �
Page 101: AgENCy PERFORMANCE � CASE STUDy 4
Page 105 and 106: AgENCy PERFORMANCE � CORPORATE SE
Page 107 and 108: AgENCy PERFORMANCE � CORPORATE SE
Page 109 and 110: DISCLOSURES AND LEgAL COMPLIANCE As
Page 111 and 112: DISCLOSURES AND LEgAL COMPLIANCE
Page 129 and 130: Reconciliation Reconciliations of t
Page 131 and 132: 28 other lIABIlItIeS 2011 2010 $’
Page 153 and 154:
DISCLOSURES AND LEgAL COMPLIANCE
Page 155 and 156:
Page 157 and 158:
Page 159 and 160:
Page 161 and 162:
Page 163 and 164:
Page 165 and 166:
Page 167 and 168:
Page 169 and 170:
APPENDICES � ADvISORy COMMITTEES
Page 171 and 172:
APPENDICES � MAjOR PUbLICATIONS P
Page 173 and 174:
APPENDICES � LEgISLATIvE AMENDMEN
Page 175 and 176:
Page 177 and 178:
Page 179 and 180:
Page 181 and 182:
Page 183 and 184:
APPENDICES � STATE REgISTER OF AU
Page 185 and 186:
Page 187 and 188:
Page 189 and 190:
Page 191 and 192:
Page 193 and 194:
Page 195 and 196:
Page 197 and 198:
Page 199 and 200:
Page 201 and 202:
Page 203:
show all

DEPARTMENT OF FISHERIES ANNUAL REPORT TO THE ...

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?