Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001
In 2002 the R/V Vizconde de Eza will replace the C/V Playa de Menduíña in conducting the Platuxa bottom trawl series carried out by the Centro Oceanográfico de Vigo (Oceanographic Center of Vigo) since 1995. So in May of 2001 a comparative fishing experience was conducted to transform the series of...
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Centro Oceanográfico de Vigo
2002
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ftieo:oai:repositorio.ieo.es:10508/578 2023-05-15T17:33:22+02:00 Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001 Paz, X. (Xabier) González-Troncoso, D. (Diana) Durán-Muñoz, P. (Pablo) Atlantic Ocean North Atlantic Northwest Atlantic NAFO 2002 http://hdl.handle.net/10508/578 eng eng Centro Oceanográfico de Vigo http://hdl.handle.net/10508/578 Paz, X., González Troncoso, D., Durán Muñoz, P. 2002. Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001. NAFO Sci. Coun. Res. Doc. 02/5, Serial Nº N4603: 25 p. Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ CC-BY-NC-ND workingPaper 2002 ftieo 2022-07-26T23:46:46Z In 2002 the R/V Vizconde de Eza will replace the C/V Playa de Menduíña in conducting the Platuxa bottom trawl series carried out by the Centro Oceanográfico de Vigo (Oceanographic Center of Vigo) since 1995. So in May of 2001 a comparative fishing experience was conducted to transform the series of the indices previously obtained and maintain the continuity of the time series obtained by the C/V Playa de Menduíña. A 81 parallel hauls series was performed. For each of the main species: American Plaice, Yellowtail flounder, Cod, Witch flounder and Thorny skate, the catches of both vessels were compared and a linear fit for these catches is presented. Also, we performed a comparative study on the catches by lenght for American plaice and Yellowtail flounder by a probability variant of the logistic curve, assuming unequal catches between the two vessels, and a fit to transformed these data. As anticipated, the values of the new indices were lower than the previous values, because teh Pedreira is approximately four times more efficient then the Campelen trawl gear. Report North Atlantic Northwest Atlantic Instituto Español de Oceanografía: e-IEO |
institution |
Open Polar |
collection |
Instituto Español de Oceanografía: e-IEO |
op_collection_id |
ftieo |
language |
English |
description |
In 2002 the R/V Vizconde de Eza will replace the C/V Playa de Menduíña in conducting the Platuxa bottom trawl series carried out by the Centro Oceanográfico de Vigo (Oceanographic Center of Vigo) since 1995. So in May of 2001 a comparative fishing experience was conducted to transform the series of the indices previously obtained and maintain the continuity of the time series obtained by the C/V Playa de Menduíña. A 81 parallel hauls series was performed. For each of the main species: American Plaice, Yellowtail flounder, Cod, Witch flounder and Thorny skate, the catches of both vessels were compared and a linear fit for these catches is presented. Also, we performed a comparative study on the catches by lenght for American plaice and Yellowtail flounder by a probability variant of the logistic curve, assuming unequal catches between the two vessels, and a fit to transformed these data. As anticipated, the values of the new indices were lower than the previous values, because teh Pedreira is approximately four times more efficient then the Campelen trawl gear. |
format |
Report |
author |
Paz, X. (Xabier) González-Troncoso, D. (Diana) Durán-Muñoz, P. (Pablo) |
spellingShingle |
Paz, X. (Xabier) González-Troncoso, D. (Diana) Durán-Muñoz, P. (Pablo) Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001 |
author_facet |
Paz, X. (Xabier) González-Troncoso, D. (Diana) Durán-Muñoz, P. (Pablo) |
author_sort |
Paz, X. (Xabier) |
title |
Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001 |
title_short |
Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001 |
title_full |
Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001 |
title_fullStr |
Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001 |
title_full_unstemmed |
Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001 |
title_sort |
comparative exercise of efficiency between c/v playa de menduíña and r/v vizconde de eza in the nafo divisions 3no in may 2001 |
publisher |
Centro Oceanográfico de Vigo |
publishDate |
2002 |
url |
http://hdl.handle.net/10508/578 |
op_coverage |
Atlantic Ocean North Atlantic Northwest Atlantic NAFO |
genre |
North Atlantic Northwest Atlantic |
genre_facet |
North Atlantic Northwest Atlantic |
op_relation |
http://hdl.handle.net/10508/578 Paz, X., González Troncoso, D., Durán Muñoz, P. 2002. Comparative Exercise of Efficiency Between C/V Playa de Menduíña and R/V Vizconde de Eza in the NAFO Divisions 3NO in May 2001. NAFO Sci. Coun. Res. Doc. 02/5, Serial Nº N4603: 25 p. |
op_rights |
Atribución-NoComercial-SinDerivadas 3.0 España http://creativecommons.org/licenses/by-nc-nd/3.0/es/ |
op_rightsnorm |
CC-BY-NC-ND |
_version_ |
1766131853869187072 |