The recent decline in recruitment ofGobionotothen gibberifronsin the South Shetland Islands ( CCAMLR Subarea 48.1)
Commercial exploitation of fish stocks around Elephant Island and the lower South Shetland Islands ceased after the 1989/90 season. One of the larger and most abundant species in the area, Gobionotothen gibberifons, was only lightly exploited compared to more northerly fishing grounds such as South...
Main Authors: | , |
---|---|
Format: | Book |
Language: | English |
Published: |
2012
|
Subjects: | |
Online Access: | https://www.openagrar.de/receive/timport_mods_00004592 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00004592/dn051166.pdf |
id |
ftopenagrar:oai:www.openagrar.de:timport_mods_00004592 |
---|---|
record_format |
openpolar |
spelling |
ftopenagrar:oai:www.openagrar.de:timport_mods_00004592 2023-05-15T13:56:19+02:00 The recent decline in recruitment ofGobionotothen gibberifronsin the South Shetland Islands ( CCAMLR Subarea 48.1) Kock, Karl-Hermann Jones, Christopher D. 2012 https://www.openagrar.de/receive/timport_mods_00004592 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00004592/dn051166.pdf eng eng https://www.openagrar.de/receive/timport_mods_00004592 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00004592/dn051166.pdf only signed in user info:eu-repo/semantics/openAccess Text book Text 2012 ftopenagrar 2022-05-01T23:08:24Z Commercial exploitation of fish stocks around Elephant Island and the lower South Shetland Islands ceased after the 1989/90 season. One of the larger and most abundant species in the area, Gobionotothen gibberifons, was only lightly exploited compared to more northerly fishing grounds such as South Georgia. Six surveys were conducted by the US and Germany from 1998 to 2012 to investigate if and to what extent Antarctic fish stocks recover from exploitation and how natural causes may add to man-made perturbations on a fish stock by recruitment failure as one of them. Data from the 1980’s and 1990’s (1983, 1985, 1986, 1987, 1996 and 1998: Kock, 1986, Kock 1987, Kock, 1998, Jones et al., 1998) demonstrated that recruitment of G. gibberifrons was normal. Recruitment began to decline substantially at the turn to the 2000’s. In 2012, the proportion of immature fish (<30 cm) in the population was less than 10%. Recruitment failure was restricted to Elephant Island and the lower South Shetland Islands. Surveys in the Antarctic Peninsula in 2006 and in the South Orkney Islands in 2009 demonstrated normal recruitment. What caused a number of years of very low recruitment around Elephant Island and the lower South Shetland Islands is still unknown. Book Antarc* Antarctic Antarctic Peninsula Elephant Island South Orkney Islands South Shetland Islands OpenAgrar (OA) Antarctic The Antarctic Antarctic Peninsula South Shetland Islands South Orkney Islands ENVELOPE(-45.500,-45.500,-60.583,-60.583) Elephant Island ENVELOPE(-55.184,-55.184,-61.085,-61.085) |
institution |
Open Polar |
collection |
OpenAgrar (OA) |
op_collection_id |
ftopenagrar |
language |
English |
topic |
Text |
spellingShingle |
Text Kock, Karl-Hermann Jones, Christopher D. The recent decline in recruitment ofGobionotothen gibberifronsin the South Shetland Islands ( CCAMLR Subarea 48.1) |
topic_facet |
Text |
description |
Commercial exploitation of fish stocks around Elephant Island and the lower South Shetland Islands ceased after the 1989/90 season. One of the larger and most abundant species in the area, Gobionotothen gibberifons, was only lightly exploited compared to more northerly fishing grounds such as South Georgia. Six surveys were conducted by the US and Germany from 1998 to 2012 to investigate if and to what extent Antarctic fish stocks recover from exploitation and how natural causes may add to man-made perturbations on a fish stock by recruitment failure as one of them. Data from the 1980’s and 1990’s (1983, 1985, 1986, 1987, 1996 and 1998: Kock, 1986, Kock 1987, Kock, 1998, Jones et al., 1998) demonstrated that recruitment of G. gibberifrons was normal. Recruitment began to decline substantially at the turn to the 2000’s. In 2012, the proportion of immature fish (<30 cm) in the population was less than 10%. Recruitment failure was restricted to Elephant Island and the lower South Shetland Islands. Surveys in the Antarctic Peninsula in 2006 and in the South Orkney Islands in 2009 demonstrated normal recruitment. What caused a number of years of very low recruitment around Elephant Island and the lower South Shetland Islands is still unknown. |
format |
Book |
author |
Kock, Karl-Hermann Jones, Christopher D. |
author_facet |
Kock, Karl-Hermann Jones, Christopher D. |
author_sort |
Kock, Karl-Hermann |
title |
The recent decline in recruitment ofGobionotothen gibberifronsin the South Shetland Islands ( CCAMLR Subarea 48.1) |
title_short |
The recent decline in recruitment ofGobionotothen gibberifronsin the South Shetland Islands ( CCAMLR Subarea 48.1) |
title_full |
The recent decline in recruitment ofGobionotothen gibberifronsin the South Shetland Islands ( CCAMLR Subarea 48.1) |
title_fullStr |
The recent decline in recruitment ofGobionotothen gibberifronsin the South Shetland Islands ( CCAMLR Subarea 48.1) |
title_full_unstemmed |
The recent decline in recruitment ofGobionotothen gibberifronsin the South Shetland Islands ( CCAMLR Subarea 48.1) |
title_sort |
recent decline in recruitment ofgobionotothen gibberifronsin the south shetland islands ( ccamlr subarea 48.1) |
publishDate |
2012 |
url |
https://www.openagrar.de/receive/timport_mods_00004592 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00004592/dn051166.pdf |
long_lat |
ENVELOPE(-45.500,-45.500,-60.583,-60.583) ENVELOPE(-55.184,-55.184,-61.085,-61.085) |
geographic |
Antarctic The Antarctic Antarctic Peninsula South Shetland Islands South Orkney Islands Elephant Island |
geographic_facet |
Antarctic The Antarctic Antarctic Peninsula South Shetland Islands South Orkney Islands Elephant Island |
genre |
Antarc* Antarctic Antarctic Peninsula Elephant Island South Orkney Islands South Shetland Islands |
genre_facet |
Antarc* Antarctic Antarctic Peninsula Elephant Island South Orkney Islands South Shetland Islands |
op_relation |
https://www.openagrar.de/receive/timport_mods_00004592 https://www.openagrar.de/servlets/MCRFileNodeServlet/timport_derivate_00004592/dn051166.pdf |
op_rights |
only signed in user info:eu-repo/semantics/openAccess |
_version_ |
1766263757944651776 |