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Potencialidad del cultivo en balsa de Semimytilus algosus (Gould) 1850, en la Bahia de Concepcion (Mollusca, Bivalvia, Mytilidae)

Resumen

Semimytilus algosus (Gould) 1850, constitutes a potencial resource for cultivation in Chile. The geographic distribution extenas from Manta, Ecuador to the Gulf of Arauco in Chile (Osario & Bahamonde, 1968). Juveniles with a 7 mm mode were collected from the mouth of the Bio-Bio River (36º 48'S, 73º10'W), and were encorded using the Spanish and French systems. These cords, 3 m long, were suspended from an experimental raft (4x4 m) in the western part of Concepción Bay (36º 42'S, 72º 02'W). After 11 months of suspension the mussels had attained a modal lenght of 52 mm, and absolute increase of 45 mm. The maximun length measured was 67 mm. A parallel study of the natural population revealed a slow growth rate, with much smaller maxima than those obtained with the raft. The experimental population seemed to exhibit a short life cycle, as demostrated in part by the rapid growth rate and a high natural death rate before completing a year of suspension. A histological analysis showed S.algosus to be hermafroditic, with mature gametes during the entire year. The gametes varied only slightly in shape and size from the gametes described for other mussel species. Canning tests were made in the local industries. Individuals with a modal length of 36-38 mm yielded 30%, while those of 30 mm individuais used in this experiment, S. algosus demonstrated a yield that compared favorably with that of other comercially important mussels, and would seem to present a great potential for a future induslrial resource.


ARTIGOS

Potencialidad del cultivo en balsa de Semimytilus algosus (Gould) 1850, en la Bahia de Concepcion (Mollusca, Bivalvia, Mytilidae)

José González; Jorge Villagra; Mauricio Hinojosa; Raúl Becerra

Pontificia Universidad Católica de Chile, Sede Regional Talcahuano, Departamento de Biología y Tecnología del Mar

SYNOPSIS

Semimytilus algosus (Gould) 1850, constitutes a potencial resource for cultivation in Chile. The geographic distribution extenas from Manta, Ecuador to the Gulf of Arauco in Chile (Osario & Bahamonde, 1968). Juveniles with a 7 mm mode were collected from the mouth of the Bio-Bio River (36º 48'S, 73º10'W), and were encorded using the Spanish and French systems. These cords, 3 m long, were suspended from an experimental raft (4x4 m) in the western part of Concepción Bay (36º 42'S, 72º 02'W). After 11 months of suspension the mussels had attained a modal lenght of 52 mm, and absolute increase of 45 mm. The maximun length measured was 67 mm. A parallel study of the natural population revealed a slow growth rate, with much smaller maxima than those obtained with the raft. The experimental population seemed to exhibit a short life cycle, as demostrated in part by the rapid growth rate and a high natural death rate before completing a year of suspension. A histological analysis showed S.algosus to be hermafroditic, with mature gametes during the entire year. The gametes varied only slightly in shape and size from the gametes described for other mussel species. Canning tests were made in the local industries. Individuals with a modal length of 36-38 mm yielded 30%, while those of 30 mm individuais used in this experiment, S. algosus demonstrated a yield that compared favorably with that of other comercially important mussels, and would seem to present a great potential for a future induslrial resource.

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Referencias Bibliográficas

ARACENA, O.; YAÑEZ, R.; LOZADA, E. & LÓPEZ, M.T. 1974. Crecimiento de Choromytilus chorus en Talcán, Chiloé (Mollusca, Bivalvia, Mytilidae). Boln. Soc. Biol. Concepción, (48):347-357.

CARREÑO, A. 1977. Gametogénesis y ciclo de madurez sexual en Aulacomya ater. Tesis. Fac. Cienc. Univ. de Chile, Santiago, (mimeografiada).

CASTILLA, J.C. & BECERRA, R. 1976. The shellfisheries of Chile: an analysis of the statistics 1960-1973. Proc. Symp. Upwelling, (Univ. del Norte-Fundación Chile). Santiago, Editorial Universitaria, p.61-90.

CHIPPERFIELD, P. N. I. 1953. Observations on the breeding and settlement of Mytilus edulis (L) in British waters. J. mar. biol. Ass. U.K., 32:449-476.

GONZÁLEZ, J. . Consideraciones generales sobre el crecimiento en balsa del chorito negro, Semimytilus algosus (Gould) 1850, en Arica, Chile. Boln Soc. Biol. Concepción, (51) (en prensa).

HERNÁNDEZ, J. & GONZÁLEZ, L. 1976, Observaciones sobre el comportamiento de mitílidos chilenos en cultivo suspendido. I. Chorito (Mytilus chilensis, Hupe, 1854). Ser. Investigación pesq., Inst. Fomento pesq., (22):1-52.

LOZADA. E. 1968. Contribución al estudio de la cholga, Aulacomya ater en Putemún. Biol. pesq. Chile, (3):3-39.

______; HERNÁNDEZ, J.M.; ARACENA, O. & LÓPEZ, M.T. 1974. El cultivo de la cholga (Aulacomya ater) en Isletilla, Estereo de Castro, (Mollusca, Bilvavia, Mytilidae). Boln Soc. Biol. Concepción, (48):331-346.

______; ROLLERI, J. & YANÉZ, R. 1971. Consideraciones biológicas de Choromytilus chorus en dos sustratos diferentes. Biol. pesq. Chile, (5) :61-108.

LUNETTA, J. E. 1969. Fisiologia da reprodução dos mexilhões (Mytilus perna). Bolm Fac. Filos. Ciênc. Letr. Univ. S. Paulo, (324), Zool. Biol. mar., n.s., (26):33-115.

OSORIO, C. & BAHAMONDE, N. 1968. Moluscos bivalvos en pesquerías chilenas. Biol. pesq. Chile, (3):69-128.

PADILLA, M. 1973. Observaciones biológicas relacionadas con el cultivo de Mytilus edulis chilensis en Aysén. Publnes Inst. Fomento pesq., (54):1-23.

SAELZER, H. 1969. Reconocimiento a los bancos de mitílidos en la zona de Castro (Chiloé). Boln Soc. Biol. Concepción, (16):135-153.

SOLIS. I. & LOZADA, E. 1971. Algunos aspectos biológicos de la cholga de Magallanes (Aulacomya ater Mol.). Biol. pesq. Chile, (5).109-144.

STUARDO, J. 1962. Informe de los estudios sobre mitilicultura realizados hasta septiembre de 1961. Investnes cient. Dep. Pesca Caza, Santiago, I,:1-27 + fig.

TOMICIC, J. 1966. Contribución al estudio de la cholga Aulacomya ater (Molina) en la bahía de Mejillones. Memoria de Prueba. Universidade de Chile, Antofagasta, 19p. fig.

______. 1968. Una especie con futuro comercial (chorito negro). Apunt. oceanol., (4):16-17.

WILSON, B.R. & HODKIN, E. 1967. A comparative account of the reproductive eyeles of five species of marine mussels (Bivalvia, Mytilidae) en the vicinity of Freemantle, Western Australia. Aust. J. mar. Freshwat. Res., 18:175-203.

  • ARACENA, O.; YAÑEZ, R.; LOZADA, E. & LÓPEZ, M.T. 1974. Crecimiento de Choromytilus chorus en Talcán, Chiloé (Mollusca, Bivalvia, Mytilidae). Boln. Soc. Biol. Concepción, (48):347-357.
  • CARREÑO, A. 1977. Gametogénesis y ciclo de madurez sexual en Aulacomya ater. Tesis. Fac. Cienc. Univ. de Chile, Santiago, (mimeografiada).
  • CASTILLA, J.C. & BECERRA, R. 1976. The shellfisheries of Chile: an analysis of the statistics 1960-1973. Proc. Symp. Upwelling, (Univ. del Norte-Fundación Chile). Santiago, Editorial Universitaria, p.61-90.
  • CHIPPERFIELD, P. N. I. 1953. Observations on the breeding and settlement of Mytilus edulis (L) in British waters. J. mar. biol. Ass. U.K., 32:449-476.
  • GONZÁLEZ, J. . Consideraciones generales sobre el crecimiento en balsa del chorito negro, Semimytilus algosus (Gould) 1850, en Arica, Chile. Boln Soc. Biol. Concepción, (51) (en prensa).
  • HERNÁNDEZ, J. & GONZÁLEZ, L. 1976, Observaciones sobre el comportamiento de mitílidos chilenos en cultivo suspendido. I. Chorito (Mytilus chilensis, Hupe, 1854). Ser. Investigación pesq., Inst. Fomento pesq., (22):1-52.
  • LOZADA. E. 1968. Contribución al estudio de la cholga, Aulacomya ater en Putemún. Biol. pesq. Chile, (3):3-39.
  • ______; HERNÁNDEZ, J.M.; ARACENA, O. & LÓPEZ, M.T. 1974. El cultivo de la cholga (Aulacomya ater) en Isletilla, Estereo de Castro, (Mollusca, Bilvavia, Mytilidae). Boln Soc. Biol. Concepción, (48):331-346.
  • ______; ROLLERI, J. & YANÉZ, R. 1971. Consideraciones biológicas de Choromytilus chorus en dos sustratos diferentes. Biol. pesq. Chile, (5) :61-108.
  • LUNETTA, J. E. 1969. Fisiologia da reprodução dos mexilhões (Mytilus perna). Bolm Fac. Filos. Ciênc. Letr. Univ. S. Paulo, (324), Zool. Biol. mar., n.s., (26):33-115.
  • OSORIO, C. & BAHAMONDE, N. 1968. Moluscos bivalvos en pesquerías chilenas. Biol. pesq. Chile, (3):69-128.
  • PADILLA, M. 1973. Observaciones biológicas relacionadas con el cultivo de Mytilus edulis chilensis en Aysén. Publnes Inst. Fomento pesq., (54):1-23.
  • SAELZER, H. 1969. Reconocimiento a los bancos de mitílidos en la zona de Castro (Chiloé). Boln Soc. Biol. Concepción, (16):135-153.
  • SOLIS. I. & LOZADA, E. 1971. Algunos aspectos biológicos de la cholga de Magallanes (Aulacomya ater Mol.). Biol. pesq. Chile, (5).109-144.
  • STUARDO, J. 1962. Informe de los estudios sobre mitilicultura realizados hasta septiembre de 1961. Investnes cient. Dep. Pesca Caza, Santiago, I,:1-27 + fig.
  • TOMICIC, J. 1966. Contribución al estudio de la cholga Aulacomya ater (Molina) en la bahía de Mejillones. Memoria de Prueba. Universidade de Chile, Antofagasta, 19p. fig.
  • ______. 1968. Una especie con futuro comercial (chorito negro). Apunt. oceanol., (4):16-17.
  • WILSON, B.R. & HODKIN, E. 1967. A comparative account of the reproductive eyeles of five species of marine mussels (Bivalvia, Mytilidae) en the vicinity of Freemantle, Western Australia. Aust. J. mar. Freshwat. Res., 18:175-203.

Fechas de Publicación

  • Publicación en esta colección
    06 Jun 2012
  • Fecha del número
    1980
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