| 2016/26 | 11/05/2016 |
This assessment updates the 2006 KAH 1 assessment and investigates potential sources of uncertainty. The data used to estimate the natural mortality rate is reviewed and a higher rate is now considered plausible. Alternative indices of abundance were offered to the model and the magnitude of the recreational catch history is now better informed. The model appears to be insensitive to plausible values of steepness. All model configurations suggest that the KAH 1 is at or above the target level of 52% B0.
|
FAR:
2016/26;
ISSN:
1179-5352;
ISBN:
978-1-77665-244-0;
Species:
Kahawai;
Stock:
KAH 1;
ResearchField:
;
Abundance;
Assessment update;
Author:
Bian;
Hartill;
|
| 2015/52 | 14/09/2015 |
Web camera imagery has been used to track trends in recreational boating effort at key boat ramps in FMA 1 since 2004–05 and in FMAs 8 & 9 since 2006–07. This report provides indices of recreational effort based on these data, which are further combined with creel survey data collected over a shorter period to provide snapper and kahawai harvest indices. The inferred long term trend in snapper and kahawai harvesting in the Hauraki Gulf has been confirmed by survey based harvest estimates provided by aerial-access surveys in 2004–05 and 2011–12.
|
FAR:
2015/52;
ISSN:
1179-5352;
ISBN:
978-1-77665-046-0;
ScienceStock:
Amateur fisheries;
Species:
kahawai;
Snapper;
ResearchField:
FMA1,FMA8,FMA9;
kahawai;
Recreational boating effort;
snapper;
FMA:
1,8,9;
Author:
Armiger;
Bian;
Hartill;
Millar;
Payne;
Rush;
|
| 2014/60 | 13/10/2014 |
This report documents a further two years of recreational catch sampling from KAH 1, which took place during the first 4 months of 2011 and 2012. Trends in length and age distributions from East Northland, the Hauraki Gulf and the Bay of Plenty are broadly consistent with those seen in the existing 8 year time series lasting from 2001 to 2008. A time series of total mortality estimates suggests that overall rates of mortality have declined in recent years and are at acceptable levels.
|
FAR:
2014/60;
ISSN:
1179-5352;
ISBN:
978-0-478-43769-0;
ScienceStock:
KAH;
Species:
Kahawai;
Stock:
KAH 1;
ResearchField:
age composition;
Length distribution;
recreational landings;
Author:
Armiger;
Buckthought;
Hartill;
Rush;
Smith;
|
| 2014/54 | 30/09/2014 |
This report documents the age determination protocol for kahawai, describing the current scientific methods used in New Zealand for otolith preparation and age determination to ensure accuracy and consistency over time. A brief history and the changes in the methodologies used in ageing kahawai are reported, and a description of the reference collection, and annotated examples of kahawai otolith preparations are also included.
|
FAR:
2014/54;
ISSN:
1179-5352;
ISBN:
978-0-478-43755-3;
ScienceStock:
KAH;
Species:
Kahawai;
ResearchField:
Age determination protocol;
Author:
Buckthought;
Horn;
McKenzie;
Ó Maolagáin, C.;
Smith;
Sutton;
Walsh;
|
| 2014/35 | 30/07/2014 |
Title: FAR 2014/35 Developing indices of relative abundance from observational aerial sightings of inshore pelagic finfish; Part 2, expanding the dataset and producing annual indices for KAH 1 and TRE 1.
FAR_2014_35_2592_SEA2010-17 (Obj. 1-2, MS 4 & 8).pdf
(1.1 MB)
Annual indices of relative abundance for trevally and kahawai in the Bay of Plenty were estimated using aerial sightings data to the end of 2010–11. There were insufficient data collected in east Northland so indices were not developed there.
|
FAR:
2014/35;
ISSN:
1179-5352;
ISBN:
978-0-478-43715-7;
ScienceStock:
KAH;
TRE;
Species:
Kahawai;
trevally;
Stock:
KAH1;
TRE1;
ResearchField:
aerial sightings;
Indices of relative abundance;
Author:
Doonan;
Taylor;
|
| 2013/70 | 19/12/2013 |
An Aerial-Access survey approach was used to estimate the recreational harvest of snapper, kahawai, trevally, gurnard and tarakihi from QMA 1 for the 2011–12 fishing year. This survey approach combines aerial and boat ramp survey data to estimate the harvest taken on each survey day. The harvest estimates reported here are of a similar magnitude to those provided by two other independent and concurrent studies, which suggests that they are reasonably accurate, and fit for management purposes.
|
FAR:
2013/70;
ISSN:
1179-5352;
ISBN:
978-0-478-42328-0;
ScienceStock:
Inshore;
Species:
gurnard;
kahawai;
Snapper;
tarakihi;
trvally;
Stock:
GUR;
KAH;
SNA;
TAR;
TRE;
ResearchField:
Recreational harvest;
Author:
Bian;
Hartill;
Rush;
|
| 2013/53 | 15/10/2013 |
This report describes catch sampling from three commercial KAH 1 fisheries during the 2011 and 2012 calendar years: the Bay of Plenty purse seine and Hauraki Gulf set net and ring net fisheries. Approximately half of the landed purse seine catch in both years was sampled, resulting in age distributions dominated by the 5 and 6 age classes. Ultimately the set net and ring net fisheries were regarded as one combined fishery because of method ambiguity and because they both tended to land 4 to 5 year old fish.
|
FAR:
2013/53;
ISSN:
1179-5352;
ISBN:
978-0-478-42071-5;
ScienceStock:
Inshore;
Species:
Kahawai;
Stock:
KAH 1;
FishingMethod:
purse seine;
ring net;
set net;
ResearchField:
catch sampling;
Author:
Armiger;
Buckthought;
Hartill;
Rush;
Smith;
|
| 2009/36 | 01/07/2009 |
Title: Length and age compositions of recreational landings of kahawai in KAH 1 in January to April 2008 and KAH 8 in January to April 2007
09_36_FAR.pdf
(500.7 kb)
Length and age compositions of recreational landings of kahawai in KAH 1 in January to April 2008 and KAH 8 in January to April 2007
|
Project code:
KAH2007/01;
FAR:
2009/36;
ISSN:
1175-1584;
ScienceStock:
Pelagic;
Species:
KAH;
Stock:
KAH1;
KAH8;
FishingMethod:
net;
seine;
ResearchField:
Catch Sampling;
Recreational;
FMA:
FMA1;
FMA8;
FMA9;
Author:
Armiger;
Buckthought;
Hartill;
Rush;
Smith;
Vaughan;
|
| 2009/24 | 01/05/2009 |
Title: Assessment of the KAH 1 fishery for 2006
09_24_FAR.pdf
(458.6 kb)
Assessment of the KAH 1 fishery for 2006
|
Project code:
KAH2005/01;
FAR:
2009/24;
ISSN:
1175-1584;
ScienceStock:
Pelagic;
Species:
KAH;
Stock:
KAH1;
FishingMethod:
net;
seine;
ResearchField:
Stock assessment;
FMA:
FMA1;
Author:
Hartill;
|
| 2008/63 | 01/11/2008 |
Title: Length and age compositions of recreational landings of kahawai in KAH 1 from January to April 2007
\2008 FARs\08_63_FAR.pdf
(564.7 kb)
Length and age compositions of recreational landings of kahawai in KAH 1 from January to April 2007
|
ISSN:
1175-1584;
Project code:
KAH2006/02;
FAR:
2008/63;
ScienceStock:
Pelagic;
Species:
KAH;
Stock:
KAH1;
ResearchField:
Catch sampling;
Fishery characterisation;
Recreational;
FMA:
FMA1;
Author:
Armiger;
Hartill;
Rush;
Smith;
Vaughan;
|
| 2008/20 | 01/03/2008 |
Stock structure of kahawai, Arripis trutta
|
ISSN:
1175-1584;
Project code:
KAH2006/01;
FAR:
2008/20;
ScienceStock:
Pelagic;
Pelagic;
Species:
KAH;
KAH;
Stock:
KAH1;
KAH1;
KAH10;
KAH10;
KAH2;
KAH2;
KAH3;
KAH3;
KAH8;
KAH8;
FishingMethod:
Net;
Net;
Seine;
Seine;
ResearchField:
Population structure;
Population structure;
FMA:
FMA1;
FMA1;
FMA10;
FMA10;
FMA2;
FMA2;
FMA3;
FMA3;
FMA4;
FMA4;
FMA5;
FMA5;
FMA6;
FMA6;
FMA7;
FMA7;
FMA8;
FMA8;
FMA9;
FMA9;
Author:
Hamer;
Hamer;
Hartill;
Hartill;
McKenzie;
McKenzie;
Smith;
Smith;
|
| 2007/39 | 01/11/2007 |
Title: Length and age composition of the commercial landings of kahawai ( Arripis trutta) in selected KAH areas for the 2005–06 fishing year
\2007 FARs\07_39_FAR.pdf
(2.6 MB)
Length and age composition of the commercial landings of kahawai (Arripis trutta) in selected KAH areas for the 2005–06 fishing year
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ISSN:
1175-1584;
Project code:
KAH2005/03;
FAR:
2007/39;
ScienceStock:
Pelagic;
Species:
KAH;
Stock:
KAH1;
KAH2;
KAH3;
KAH8;
FishingMethod:
Net;
Seine;
ResearchField:
Life-history characteristics;
Population structure;
FMA:
FMA1;
FMA2;
FMA3;
FMA5;
FMA6;
FMA7;
FMA8;
FMA9;
Author:
Devine;
|
| 2007/30 | 01/09/2007 |
Title: CPUE from kahawai ( Arripis trutta) setnet and trawl fisheries in Fishstocks KAH 1, 2, 3, and 8 between 1989 and 2005
\2007 FARs\07_30_FAR.pdf
(7.8 MB)
CPUE from kahawai (Arripis trutta) setnet and trawl fisheries in Fishstocks KAH 1, 2, 3, and 8 between 1989 and 2005
|
Author:
Hartill;
McKenzie;
Walker;
FishingMethod:
Net;
Trawl;
FMA:
FMA1;
FMA2;
FMA3;
FMA5;
FMA6;
FMA7;
FMA8;
FMA9;
ISSN:
1175-1584;
Project code:
KAH2005/01;
ResearchField:
CPUE;
ScienceStock:
Pelagic;
Species:
KAH;
Stock:
KAH1;
KAH2;
KAH3;
KAH8;
|
| 2007/28 | 01/08/2007 |
Title: Length and age composition of recreational landings of kahawai in KAH 1 from January to April 2005–06
\2007 FARs\07_28_FAR.pdf
(1.1 MB)
Length and age composition of recreational landings of kahawai in KAH 1 from January to April 2005–06
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ISSN:
1175-1584;
Project code:
KAH2005/02;
FAR:
2007/28;
ScienceStock:
Pelagic;
Species:
KAH;
Stock:
KAH1;
FishingMethod:
Net;
Seine;
ResearchField:
Life-history characteristics;
Population structure;
Recreational;
FMA:
FMA1;
Author:
Armiger;
Hartill;
Rush;
Smith;
Vaughan;
|
| 2007/26 | 01/08/2007 |
Title: Recreational marine harvest estimates of snapper, kahawai and kingfish in QMA 1 in 2004-05
\2007 FARs\07_26_FAR.pdf
(1.8 MB)
Recreational marine harvest estimates of snapper, kahawai and kingfish in QMA 1 in 2004-05
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ISSN:
1175-1584;
Project code:
REC2004/01;
FAR:
2007/26;
ScienceStock:
Inshore;
Inshore;
Species:
KAH;
KAH;
KIN;
KIN;
SNA;
SNA;
Stock:
KAH1;
KAH1;
KIN1;
KIN1;
SNA1;
SNA1;
ResearchField:
Recreational;
Recreational;
FMA:
FMA1;
FMA1;
Author:
Armiger;
Armiger;
Bian;
Bian;
Hartill;
Hartill;
Rush;
Rush;
Vaughan;
Vaughan;
|
| 2007/25 | 01/08/2007 |
Title: Recreational marine harvest estimates of snapper and kahawai in the Hauraki Gulf in 2003-04
\2007 FARs\07_25_FAR.pdf
(2.3 MB)
Recreational marine harvest estimates of snapper and kahawai in the Hauraki Gulf in 2003-04
|
ISSN:
1175-1584;
Project code:
REC2002/02;
FAR:
2007/25;
ScienceStock:
Inshore;
Species:
KAH;
SNA;
Stock:
KAH1;
SNA1;
ResearchField:
Recreational;
FMA:
FMA1;
Author:
Armiger;
Cryer;
Hartill;
Watson;
|
| 2007/06 | 01/03/2007 |
Title: Length and age composition of recreational landings of kahawai in KAH 1 in 2000-01, 2001-02, and 2002-03.
\2007 FARs\07_06_FAR.pdf
(3.3 MB)
Length and age composition of recreational landings of kahawai in KAH 1 in 2000-01, 2001-02, and 2002-03.
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ISSN:
1175-1584;
Project code:
KAH2000/01;
FAR:
2007/06;
ScienceStock:
Pelagic;
Species:
KAH;
Stock:
KAH1;
ResearchField:
Life-history characteristics;
Recreational;
FMA:
FMA1;
Author:
Armiger;
Fisher;
Hartill;
Middleton;
Tasker;
|
| 2006/57 | 01/12/2006 |
Title: Length and age compositions of recreational landings of kahawai in KAH 1 in January to April 2003-04 and 2004-05.
\2006 FARs\06_57_FAR.pdf
(3.1 MB)
Length and age compositions of recreational landings of kahawai in KAH 1 in January to April 2003-04 and 2004-05.
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ISSN:
1175-1584;
Project code:
KAH2003/01;
FAR:
2006/57;
ScienceStock:
Pelagic;
Pelagic;
Species:
KAH;
KAH;
Stock:
KAH1;
KAH1;
ResearchField:
Catch sampling;
Catch sampling;
Fishery characterisation;
Fishery characterisation;
Recreational fishing;
Recreational fishing;
FMA:
FMA1;
FMA1;
Author:
Armiger;
Armiger;
Griggs;
Griggs;
Hartill;
Hartill;
Smith;
Smith;
Tasker;
Tasker;
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| KAH2000-01 | 01/11/2001 |
Length and age compositions of recreational landings of kahawai in KAH 1 in 2000-01, 2001-02, and 2002-03. Objectve 1
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Author:
Armiger;
Fisher;
Hartill;
Middleton;
Tasker;
KAH2000-01:
Objective 1;
ResearchField:
Ageing;
recreational;
ScienceStock:
Inshore;
Species:
KAH;
Stock:
KAH1;
|
| KAH2000-01 | 01/11/2001 |
Monitoring the length and age composition of recreational landings of kahawai in KAH 1 in 2000-2001. Objective 1
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Author:
Cadenhead;
Hartill;
Smith;
Tasker;
KAH2000-01:
Objective 1;
ResearchField:
Ageing;
recreational;
ScienceStock:
Inshore;
Species:
KAH;
Stock:
KAH1;
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| 2001/05 | 01/02/2001 |
Title: Further considerations on the feasibility of sampling the recreational fishery to monitor the kahawai stock
\2001 FARs\01_05_FARD .pdf
(1.1 MB)
Further considerations on the feasibility of sampling the recreational fishery to monitor the kahawai stock
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Author:
Bradford;
ISSN:
1175-1584;
ResearchField:
Analytical methods;
Population structure;
Recreational fishing;
ScienceStock:
Pelagic;
Species:
KAH;
|
| ENV1999-03 | 01/12/2000 |
Areas of importance for spawning, pupping or egg-laying, and juveniles of New Zealand coastal fish.
Coastal Fish NZ Objective 1 Final(Objective 1)
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Author:
;
Bagley;
Francis;
Griggs;
Hurst;
Morrison;
Stevenson;
FishingMethod:
;
Seine;
trawl;
FMA:
FMA1;
FMA10;
FMA2;
FMA3;
FMA4;
FMA5;
FMA6;
FMA7;
FMA8;
FMA9;
ResearchField:
Habitat classification;
juvinile habitat;
literature review;
spawning areas;
trawl survey;
ScienceStock:
Benthic;
Iinshore;
Middle Depths;
Species:
BAR;
BCO;
ELE;
EMA;
FLA;
GUR;
HAK;
JDO;
JMA;
KAH;
KIN;
LIN;
MOK;
RCO;
SCH;
SKI;
SNA;
SPD;
SPE;
SPO;
SQU;
STA;
SWA;
TAR;
TRE;
WAR;
YEM;
Stock:
;
Juvinile;
Spawing;
|
| 2000/11 | 01/04/2000 |
Feasibility of sampling the recreational fishery to monitor the kahawai stock
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Author:
Bradford;
ISSN:
1175-1584;
ResearchField:
Catch sampling;
Recreational fishing;
ScienceStock:
Pelagic;
Species:
KAH;
|
| 1999/53 | 01/12/1999 |
Title: Time series of relative abundance indices from aerial sightings data for some important pelagic schooling species
\1999 FARDs\99_53_FARD.pdf
(885.2 kb)
Time series of relative abundance indices from aerial sightings data for some important pelagic schooling species
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Author:
Taylor;
ISSN:
1175-1584;
ResearchField:
Biomass;
ScienceStock:
Pelagic;
Species:
EMA;
JMA;
KAH;
SKJ;
TRE;
Stock:
JMA1;
JMA2;
JMA3;
KAH1;
KAH2;
KAH3;
KAH9;
TRE1;
TRE2;
TRE7;
|
| KAH9701 | 01/09/1998 |
Kahawai stock assessment. Objective 1
|
Author:
Bradford;
KAH9701:
Objective 1;
ResearchField:
catch sampling;
recreational;
Stock assessment;
ScienceStock:
Inshore;
Species:
KAH;
Stock:
KAH1;
KAH2;
KAH3;
KAH9;
|
| 1997/20 | 01/08/1997 |
Update of kahawai simulation model for the 1997 assessment and sensitivity analysis
|
Author:
Bradford;
FishingMethod:
Seine;
ISSN:
1175-1584;
ResearchField:
Analytical methods;
Stock assessment;
ScienceStock:
Pelagic;
Species:
KAH;
|
| 1996/07 | 01/06/1996 |
Preliminary simulation modelling of kahawai stocks
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Author:
Bradford;
FishingMethod:
Net;
Seine;
Trawl;
ISSN:
1175-1584;
ResearchField:
Biomass;
Population modelling;
ScienceStock:
Pelagic;
Species:
KAH;
|
| 1995/09 | 01/07/1995 |
Kahawai: Information presented at the 1994 stock assessment
|
Author:
Jones;
FishingMethod:
Net;
Seine;
Trawl;
ISSN:
1175-1584;
ResearchField:
Stock assessment;
ScienceStock:
Pelagic;
Species:
KAH;
|
| 1995/08 | 01/05/1995 |
Trends in pelagic fish abundance from aerial sightings data
|
Author:
Bradford;
Taylor;
FishingMethod:
Seine;
ISSN:
1175-1584;
ResearchField:
Biomass;
ScienceStock:
Pelagic;
Species:
BMA;
JMA;
KAH;
TRE;
|
| 1992/02 | 01/05/1992 |
Kahawai fishery assessment for the 1992-93 fishing year
|
Author:
Cresswell;
Drummond;
Jones;
McKenzie;
FishingMethod:
Seine;
ISSN:
1175-1584;
ResearchField:
Stock assessment;
ScienceStock:
Pelagic;
Species:
KAH;
|
| 1989/10 | 01/11/1989 |
Kahawai fishery assessment 1989
|
Author:
Sylvester;
FishingMethod:
Seine;
ISSN:
1175-1584;
ResearchField:
Stock assessment;
ScienceStock:
Pelagic;
Species:
KAH;
|
| 1988/42 | 01/12/1988 |
Kahawai
|
Author:
Kilner;
FishingMethod:
Seine;
ISSN:
1175-1584;
ResearchField:
Fishery characterisation;
ScienceStock:
Pelagic;
Species:
KAH;
|
