Comparison of the physiological energetics between Mytilus chilensis, Mytilus galloprovincialis and their hybrids, under laboratory conditions

Pablo A. Oyarzún, Jorge E. Toro, Jorge M. Navarro

Resultado de la investigación: Article

4 Citas (Scopus)

Resumen

Laboratory-produced juvenile individuals of the species Mytilus chilensis, M. galloprovincialis and their hybrids were subjected to physiological measurements under an experimental diet of Isochrysis galbana (30 × 106 cells L-1), 13°C temperature and a salinity of 30 psu. Pure species individuals showed a higher clearance rate (CR). Mytilus chilensis had a CR of 1.13 L h-1, while M. galloprovincialis registered only 0.78 L h-1. Also, pure taxa registered higher values (above 70%) of absorption efficiency when compared with hybrid individuals. Ammonia excretion in M. chilensis and M. galloprovincialis was 1.5% and 0.4%, respectively, while hybrids registered significantly lower values. Under these experimental conditions, M. chilensis registered the highest scope for growth (P < 0.05), compared with M. galloprovincialis and their hybrids. However, the net growth efficiency index (K 2) in hybridization type I (♀Mg × ♂Mc) was higher (P < 0.05) than other experimental groups. The invasive mytilid M. galloprovincialis showed values that are very similar to those obtained with the hybridization I group (♀Mg × ♂Mc). Finally, we discuss that water temperature is an important factor in the biogeographic separation of both species and the potential effects that the settlement of the invasive species may have for Chilean mussel production.

Idioma originalEnglish
Páginas (desde-hasta)1805-1814
Número de páginas10
PublicaciónAquaculture Research
Volumen44
N.º12
DOI
EstadoPublished - 1 ene 2013

Huella dactilar

Mytilus galloprovincialis
energetics
clearance rate
absorption efficiency
hybridization
Isochrysis galbana
invasive species
excretion
water temperature
ammonia
experimental diets
mussels
diet
salinity
laboratory
comparison
Mytilus chilensis
temperature

ASJC Scopus subject areas

  • Aquatic Science

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abstract = "Laboratory-produced juvenile individuals of the species Mytilus chilensis, M. galloprovincialis and their hybrids were subjected to physiological measurements under an experimental diet of Isochrysis galbana (30 × 106 cells L-1), 13°C temperature and a salinity of 30 psu. Pure species individuals showed a higher clearance rate (CR). Mytilus chilensis had a CR of 1.13 L h-1, while M. galloprovincialis registered only 0.78 L h-1. Also, pure taxa registered higher values (above 70{\%}) of absorption efficiency when compared with hybrid individuals. Ammonia excretion in M. chilensis and M. galloprovincialis was 1.5{\%} and 0.4{\%}, respectively, while hybrids registered significantly lower values. Under these experimental conditions, M. chilensis registered the highest scope for growth (P < 0.05), compared with M. galloprovincialis and their hybrids. However, the net growth efficiency index (K 2) in hybridization type I (♀Mg × ♂Mc) was higher (P < 0.05) than other experimental groups. The invasive mytilid M. galloprovincialis showed values that are very similar to those obtained with the hybridization I group (♀Mg × ♂Mc). Finally, we discuss that water temperature is an important factor in the biogeographic separation of both species and the potential effects that the settlement of the invasive species may have for Chilean mussel production.",
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Comparison of the physiological energetics between Mytilus chilensis, Mytilus galloprovincialis and their hybrids, under laboratory conditions. / Oyarzún, Pablo A.; Toro, Jorge E.; Navarro, Jorge M.

En: Aquaculture Research, Vol. 44, N.º 12, 01.01.2013, p. 1805-1814.

Resultado de la investigación: Article

TY - JOUR

T1 - Comparison of the physiological energetics between Mytilus chilensis, Mytilus galloprovincialis and their hybrids, under laboratory conditions

AU - Oyarzún, Pablo A.

AU - Toro, Jorge E.

AU - Navarro, Jorge M.

PY - 2013/1/1

Y1 - 2013/1/1

N2 - Laboratory-produced juvenile individuals of the species Mytilus chilensis, M. galloprovincialis and their hybrids were subjected to physiological measurements under an experimental diet of Isochrysis galbana (30 × 106 cells L-1), 13°C temperature and a salinity of 30 psu. Pure species individuals showed a higher clearance rate (CR). Mytilus chilensis had a CR of 1.13 L h-1, while M. galloprovincialis registered only 0.78 L h-1. Also, pure taxa registered higher values (above 70%) of absorption efficiency when compared with hybrid individuals. Ammonia excretion in M. chilensis and M. galloprovincialis was 1.5% and 0.4%, respectively, while hybrids registered significantly lower values. Under these experimental conditions, M. chilensis registered the highest scope for growth (P < 0.05), compared with M. galloprovincialis and their hybrids. However, the net growth efficiency index (K 2) in hybridization type I (♀Mg × ♂Mc) was higher (P < 0.05) than other experimental groups. The invasive mytilid M. galloprovincialis showed values that are very similar to those obtained with the hybridization I group (♀Mg × ♂Mc). Finally, we discuss that water temperature is an important factor in the biogeographic separation of both species and the potential effects that the settlement of the invasive species may have for Chilean mussel production.

AB - Laboratory-produced juvenile individuals of the species Mytilus chilensis, M. galloprovincialis and their hybrids were subjected to physiological measurements under an experimental diet of Isochrysis galbana (30 × 106 cells L-1), 13°C temperature and a salinity of 30 psu. Pure species individuals showed a higher clearance rate (CR). Mytilus chilensis had a CR of 1.13 L h-1, while M. galloprovincialis registered only 0.78 L h-1. Also, pure taxa registered higher values (above 70%) of absorption efficiency when compared with hybrid individuals. Ammonia excretion in M. chilensis and M. galloprovincialis was 1.5% and 0.4%, respectively, while hybrids registered significantly lower values. Under these experimental conditions, M. chilensis registered the highest scope for growth (P < 0.05), compared with M. galloprovincialis and their hybrids. However, the net growth efficiency index (K 2) in hybridization type I (♀Mg × ♂Mc) was higher (P < 0.05) than other experimental groups. The invasive mytilid M. galloprovincialis showed values that are very similar to those obtained with the hybridization I group (♀Mg × ♂Mc). Finally, we discuss that water temperature is an important factor in the biogeographic separation of both species and the potential effects that the settlement of the invasive species may have for Chilean mussel production.

KW - Energetic balance

KW - Hybrids

KW - Mytilus

KW - Reciprocal cross

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U2 - 10.1111/j.1365-2109.2012.03184.x

DO - 10.1111/j.1365-2109.2012.03184.x

M3 - Article

AN - SCOPUS:84887190073

VL - 44

SP - 1805

EP - 1814

JO - Aquaculture Research

JF - Aquaculture Research

SN - 1355-557X

IS - 12

ER -