Effect of a shore-based sampling programme on Notothenia coriiceps populations
The effect of an intensive sampling programme on an inshore population of Notothenia coriiceps was studied at Potter Cove, South Shetland Islands, by comparing catch data taken in successive summers of 1992/93 to 1994/95 at one specific zone (site 1) with those taken in the 1994/95 summer at two clo...
Published in: | Antarctic Science |
---|---|
Main Authors: | , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
Cambridge University Press (CUP)
2002
|
Subjects: | |
Online Access: | http://dx.doi.org/10.1017/s0954102002000056 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102002000056 |
id |
crcambridgeupr:10.1017/s0954102002000056 |
---|---|
record_format |
openpolar |
spelling |
crcambridgeupr:10.1017/s0954102002000056 2024-03-03T08:39:29+00:00 Effect of a shore-based sampling programme on Notothenia coriiceps populations CASAUX, R.J. BARRERA-ORO, E.R. 2002 http://dx.doi.org/10.1017/s0954102002000056 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102002000056 en eng Cambridge University Press (CUP) https://www.cambridge.org/core/terms Antarctic Science volume 14, issue 3, page 221-224 ISSN 0954-1020 1365-2079 Geology Ecology, Evolution, Behavior and Systematics Oceanography journal-article 2002 crcambridgeupr https://doi.org/10.1017/s0954102002000056 2024-02-08T08:31:31Z The effect of an intensive sampling programme on an inshore population of Notothenia coriiceps was studied at Potter Cove, South Shetland Islands, by comparing catch data taken in successive summers of 1992/93 to 1994/95 at one specific zone (site 1) with those taken in the 1994/95 summer at two close but not previously sampled zones (sites 2 and 3). The fish were caught with trammel nets under similar sampling conditions (depth, net measurements, bottom type). In site 1, a decline in length (TL) of the fish was observed throughout the whole period. The fish from sites 2 (mean = 32.4 cm) and 3 (mean = 31.8 cm) exhibited no significant differences in mean length. They were larger ( P = 0.07) than those from site 1 caught in the summers of 1994/95 (mean = 28.8 cm) and 1993/94 (mean = 30.2 cm), but were similar in size to those sampled in the summer of 1992/93 (mean = 31.7 cm), just when the sampling programme started in site 1. Although alternative hypotheses to explain the results are discussed (e.g. random error, strong recruitment), it is suggested that the size variations of the fish sampled at site 1 are due to intensive sampling effort carried out throughout this study at that specific zone in Potter Cove. Article in Journal/Newspaper Antarctic Science South Shetland Islands Cambridge University Press South Shetland Islands Potter Cove Antarctic Science 14 3 221 224 |
institution |
Open Polar |
collection |
Cambridge University Press |
op_collection_id |
crcambridgeupr |
language |
English |
topic |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
spellingShingle |
Geology Ecology, Evolution, Behavior and Systematics Oceanography CASAUX, R.J. BARRERA-ORO, E.R. Effect of a shore-based sampling programme on Notothenia coriiceps populations |
topic_facet |
Geology Ecology, Evolution, Behavior and Systematics Oceanography |
description |
The effect of an intensive sampling programme on an inshore population of Notothenia coriiceps was studied at Potter Cove, South Shetland Islands, by comparing catch data taken in successive summers of 1992/93 to 1994/95 at one specific zone (site 1) with those taken in the 1994/95 summer at two close but not previously sampled zones (sites 2 and 3). The fish were caught with trammel nets under similar sampling conditions (depth, net measurements, bottom type). In site 1, a decline in length (TL) of the fish was observed throughout the whole period. The fish from sites 2 (mean = 32.4 cm) and 3 (mean = 31.8 cm) exhibited no significant differences in mean length. They were larger ( P = 0.07) than those from site 1 caught in the summers of 1994/95 (mean = 28.8 cm) and 1993/94 (mean = 30.2 cm), but were similar in size to those sampled in the summer of 1992/93 (mean = 31.7 cm), just when the sampling programme started in site 1. Although alternative hypotheses to explain the results are discussed (e.g. random error, strong recruitment), it is suggested that the size variations of the fish sampled at site 1 are due to intensive sampling effort carried out throughout this study at that specific zone in Potter Cove. |
format |
Article in Journal/Newspaper |
author |
CASAUX, R.J. BARRERA-ORO, E.R. |
author_facet |
CASAUX, R.J. BARRERA-ORO, E.R. |
author_sort |
CASAUX, R.J. |
title |
Effect of a shore-based sampling programme on Notothenia coriiceps populations |
title_short |
Effect of a shore-based sampling programme on Notothenia coriiceps populations |
title_full |
Effect of a shore-based sampling programme on Notothenia coriiceps populations |
title_fullStr |
Effect of a shore-based sampling programme on Notothenia coriiceps populations |
title_full_unstemmed |
Effect of a shore-based sampling programme on Notothenia coriiceps populations |
title_sort |
effect of a shore-based sampling programme on notothenia coriiceps populations |
publisher |
Cambridge University Press (CUP) |
publishDate |
2002 |
url |
http://dx.doi.org/10.1017/s0954102002000056 https://www.cambridge.org/core/services/aop-cambridge-core/content/view/S0954102002000056 |
geographic |
South Shetland Islands Potter Cove |
geographic_facet |
South Shetland Islands Potter Cove |
genre |
Antarctic Science South Shetland Islands |
genre_facet |
Antarctic Science South Shetland Islands |
op_source |
Antarctic Science volume 14, issue 3, page 221-224 ISSN 0954-1020 1365-2079 |
op_rights |
https://www.cambridge.org/core/terms |
op_doi |
https://doi.org/10.1017/s0954102002000056 |
container_title |
Antarctic Science |
container_volume |
14 |
container_issue |
3 |
container_start_page |
221 |
op_container_end_page |
224 |
_version_ |
1792495056789176320 |