Tristan Group Biomass Survey (Leg 1) results including data from the 2018 season

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dc.contributor.authorJohnston, Susan
dc.date.accessioned2020-08-24T07:19:34Z
dc.date.available2020-08-24T07:19:34Z
dc.date.issued2019
dc.description.abstractThis paper reports the updated biomass indices (to include the 2017 season) obtained from the annual (Leg 1) biomass survey at each island. The index continues to show steady improvement for Inaccessible and Tristan over recent years, and a fairly constant trend for Gough. The Nightingale biomass index remains high following a sharp increase subsequent to the 2011 OLIVA event. There have been some changes over time in the size distribution, the most marked of which have been a steady increase at Inaccessible, with a steady decrease in the mean length at Tristan which having reversed over the last three seasons. The percentage of females in the catch at Gough is about double that at the other islands but has shown a decline in the most recent 2017 season.en_US
dc.identifier.apacitationJohnston, S. (2019). <i>Tristan Group Biomass Survey (Leg 1) results including data from the 2018 season</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics. Retrieved from http://hdl.handle.net/11427/32126en_ZA
dc.identifier.chicagocitationJohnston, Susan <i>Tristan Group Biomass Survey (Leg 1) results including data from the 2018 season.</i> ,Faculty of Science ,Department of Mathematics and Applied Mathematics, 2019. http://hdl.handle.net/11427/32126en_ZA
dc.identifier.citationJohnston, S. 2019. <i>Tristan Group Biomass Survey (Leg 1) results including data from the 2018 season</i>. ,Faculty of Science ,Department of Mathematics and Applied Mathematics. http://hdl.handle.net/11427/32126 .en_ZA
dc.identifier.ris TY - Report AU - Johnston, Susan AB - This paper reports the updated biomass indices (to include the 2017 season) obtained from the annual (Leg 1) biomass survey at each island. The index continues to show steady improvement for Inaccessible and Tristan over recent years, and a fairly constant trend for Gough. The Nightingale biomass index remains high following a sharp increase subsequent to the 2011 OLIVA event. There have been some changes over time in the size distribution, the most marked of which have been a steady increase at Inaccessible, with a steady decrease in the mean length at Tristan which having reversed over the last three seasons. The percentage of females in the catch at Gough is about double that at the other islands but has shown a decline in the most recent 2017 season. DA - 2019 DB - OpenUCT DP - University of Cape Town LK - https://open.uct.ac.za PY - 2019 T1 - Tristan Group Biomass Survey (Leg 1) results including data from the 2018 season TI - Tristan Group Biomass Survey (Leg 1) results including data from the 2018 season UR - http://hdl.handle.net/11427/32126 ER - en_ZA
dc.identifier.urihttp://hdl.handle.net/11427/32126
dc.identifier.vancouvercitationJohnston S. Tristan Group Biomass Survey (Leg 1) results including data from the 2018 season. 2019 [cited yyyy month dd]. Available from: http://hdl.handle.net/11427/32126en_ZA
dc.publisher.departmentDepartment of Mathematics and Applied Mathematicsen_US
dc.publisher.facultyFaculty of Scienceen_US
dc.titleTristan Group Biomass Survey (Leg 1) results including data from the 2018 seasonen_US
dc.typeReporten_US
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