Primeras fases del cultivo de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 e intentos preliminares de repoblación
We performed rearing studies with first-feeding fry and fingerling American Atlantic sturgeons Acipenser oxyrinchus oxyrinchus Mitchill, 1815 of Hudson River parentage. Sturgeons were reared at initial densities of 3.7-22.2 fish/l and offered live Artemia sp., frozen Artemia sp., or a formulated die...
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Online Access: | http://hdl.handle.net/10508/1377 http://hdl.handle.net/10261/313259 |
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ftcsic:oai:digital.csic.es:10261/313259 2024-02-11T10:07:14+01:00 Primeras fases del cultivo de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 e intentos preliminares de repoblación Early culture of the American Atlantic sturgeon Acipenser oxyrinchus oxyrinchus Mitchill, 1815 and preliminary stocking trials Mohler, J. W. Mosquera-de-Arancibia, C. (Concha) Atlantic Ocean Western Atlantic Northwest Atlantic 2001-03-01T00:00:00+01:00 http://hdl.handle.net/10508/1377 http://hdl.handle.net/10261/313259 unknown Boletín. Instituto Español de Oceanografía. 2000. 16 (1-4) 0074-0195 http://hdl.handle.net/10508/1377 http://hdl.handle.net/10261/313259 open Densidad Acuicultura tasa específica de crecimiento conversión de dieta evaluación de la repoblación research article 2001 ftcsic 2024-01-16T11:43:40Z We performed rearing studies with first-feeding fry and fingerling American Atlantic sturgeons Acipenser oxyrinchus oxyrinchus Mitchill, 1815 of Hudson River parentage. Sturgeons were reared at initial densities of 3.7-22.2 fish/l and offered live Artemia sp., frozen Artemia sp., or a formulated diet (Biokyowa). After 26 days, mean specific growth rate was inversely proportional to fish density and ranged from 4.9-11.1% per day. Fish fed frozen artemia were smaller but had the same survival rate as those fed live artemia. Sturgeons converted to a formulated diet with 25 % mortality at mean length and weight (sd) of 34.5 mm (3.0) and 182 mg (50). Treatments of fingerlings established at initial densities of 0.37-2.22 g/l and fed a formulated diet (Zeigler) for 28 days exhibited mean percent survival (sd) of 87.0 (0.0) to 93.3 (2.3) and had feed conversion factors of 0.50 or less. Our study showed that first-feeding American Atlantic sturgeons require low initial rearing densities (7.4 fish/l or less) and 20-26 days of continuous live artemia to facilitate conversion to formulated feed. Fish reared similarly were released into the Hudson River in 1994 and into the Nanticoke River (a Chesapeake Bay tributary) in 1996 to evaluate survival and estimate wild recruitment. Sampling in the Hudson River from 1995 through 1997 showed that hatchery fish comprised 35-53% of the total juvenile catch. Evaluation of fish released in the Nanticoke River from 1996 through 1998 showed that hatchery fish spread throughout Chesapeake Bay, made up 62 % of the total American Atlantic sturgeon catch, and had similar length-weight relationships as wild fish. Hemos realizado estudios de cultivo con juveniles en estadios iniciales y más avanzados de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 de linaje procedente del río Hudson. Los esturiones fueron cultivados a densidades iniciales de 3,7-22,2 peces por litro y alimentados con Artemia sp. viva, Artemia sp. congelada, o con una dieta formulada ... Article in Journal/Newspaper Northwest Atlantic Digital.CSIC (Spanish National Research Council) Hudson Zeigler ENVELOPE(-143.050,-143.050,-77.217,-77.217) |
institution |
Open Polar |
collection |
Digital.CSIC (Spanish National Research Council) |
op_collection_id |
ftcsic |
language |
unknown |
topic |
Densidad Acuicultura tasa específica de crecimiento conversión de dieta evaluación de la repoblación |
spellingShingle |
Densidad Acuicultura tasa específica de crecimiento conversión de dieta evaluación de la repoblación Mohler, J. W. Primeras fases del cultivo de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 e intentos preliminares de repoblación |
topic_facet |
Densidad Acuicultura tasa específica de crecimiento conversión de dieta evaluación de la repoblación |
description |
We performed rearing studies with first-feeding fry and fingerling American Atlantic sturgeons Acipenser oxyrinchus oxyrinchus Mitchill, 1815 of Hudson River parentage. Sturgeons were reared at initial densities of 3.7-22.2 fish/l and offered live Artemia sp., frozen Artemia sp., or a formulated diet (Biokyowa). After 26 days, mean specific growth rate was inversely proportional to fish density and ranged from 4.9-11.1% per day. Fish fed frozen artemia were smaller but had the same survival rate as those fed live artemia. Sturgeons converted to a formulated diet with 25 % mortality at mean length and weight (sd) of 34.5 mm (3.0) and 182 mg (50). Treatments of fingerlings established at initial densities of 0.37-2.22 g/l and fed a formulated diet (Zeigler) for 28 days exhibited mean percent survival (sd) of 87.0 (0.0) to 93.3 (2.3) and had feed conversion factors of 0.50 or less. Our study showed that first-feeding American Atlantic sturgeons require low initial rearing densities (7.4 fish/l or less) and 20-26 days of continuous live artemia to facilitate conversion to formulated feed. Fish reared similarly were released into the Hudson River in 1994 and into the Nanticoke River (a Chesapeake Bay tributary) in 1996 to evaluate survival and estimate wild recruitment. Sampling in the Hudson River from 1995 through 1997 showed that hatchery fish comprised 35-53% of the total juvenile catch. Evaluation of fish released in the Nanticoke River from 1996 through 1998 showed that hatchery fish spread throughout Chesapeake Bay, made up 62 % of the total American Atlantic sturgeon catch, and had similar length-weight relationships as wild fish. Hemos realizado estudios de cultivo con juveniles en estadios iniciales y más avanzados de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 de linaje procedente del río Hudson. Los esturiones fueron cultivados a densidades iniciales de 3,7-22,2 peces por litro y alimentados con Artemia sp. viva, Artemia sp. congelada, o con una dieta formulada ... |
author2 |
Mosquera-de-Arancibia, C. (Concha) |
format |
Article in Journal/Newspaper |
author |
Mohler, J. W. |
author_facet |
Mohler, J. W. |
author_sort |
Mohler, J. W. |
title |
Primeras fases del cultivo de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 e intentos preliminares de repoblación |
title_short |
Primeras fases del cultivo de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 e intentos preliminares de repoblación |
title_full |
Primeras fases del cultivo de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 e intentos preliminares de repoblación |
title_fullStr |
Primeras fases del cultivo de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 e intentos preliminares de repoblación |
title_full_unstemmed |
Primeras fases del cultivo de esturión atlántico americano Acipenser oxyrinchus oxyrinchus Mitchill, 1815 e intentos preliminares de repoblación |
title_sort |
primeras fases del cultivo de esturión atlántico americano acipenser oxyrinchus oxyrinchus mitchill, 1815 e intentos preliminares de repoblación |
publishDate |
2001 |
url |
http://hdl.handle.net/10508/1377 http://hdl.handle.net/10261/313259 |
op_coverage |
Atlantic Ocean Western Atlantic Northwest Atlantic |
long_lat |
ENVELOPE(-143.050,-143.050,-77.217,-77.217) |
geographic |
Hudson Zeigler |
geographic_facet |
Hudson Zeigler |
genre |
Northwest Atlantic |
genre_facet |
Northwest Atlantic |
op_relation |
Boletín. Instituto Español de Oceanografía. 2000. 16 (1-4) 0074-0195 http://hdl.handle.net/10508/1377 http://hdl.handle.net/10261/313259 |
op_rights |
open |
_version_ |
1790605418861428736 |