Reproductive patterns of mussel Perumytilus purpuratus (Bivalvia: Mytilidae), along the Chilean coast: Effects caused by climate change?

Pablo A. Oyarzún, Jorge E. Toro, José Garcés-Vargas, Claudia Alvarado, Ricardo Guiñez, Roberto Jaramillo, Carolina Briones, Bernardita Campos

Resultado de la investigación: Article

3 Citas (Scopus)

Resumen

Reproductive cycles were studied in seven natural populations of the intertidal bivalve Perumytilus purpuratus, distributed in a latitudinal gradient of ~2400 km along the Chilean Pacific coast (20-40°S). The results, both qualitative (gametogenic stages) and quantitative (GSI and GVF), over a period of 24 months, showed that these populations presented asynchrony in the reproductive cycle. Semi-annual cycles in Iquique (20°S), Antofagasta (23°S) and Montemar (32°S), and annual cycles in Caleta Bolfin (23°S), Taltal (25°S), Tumbes (36°S) and Pucatrihue (40°S) (2010-2012) were found. The results indicate that latitude does not have an effect on the development stage, but it does on the spawning date. However, there is a relationship between the reproductive cycles and temperature fluctuations. In addition, there was a significant negative linear correlation between gonadosomatic index and sea surface temperature in the populations studied. The decrease in temperature reduces the rate of development stages and, therefore, increases the reproductive cycles from semi-annual to annual, as evidenced in bivalve samples from Taltal, along a semi-decadal period (2007-2012). From these results, we discuss the likely biological and ecosystem consequences in connection to the effects of climate change in the South Pacific.

Idioma originalEnglish
Páginas (desde-hasta)375-385
Número de páginas11
PublicaciónJournal of the Marine Biological Association of the United Kingdom
Volumen98
N.º2
DOI
EstadoPublished - 1 mar 2018

Huella dactilar

Mytilidae
reproductive cycle
mussels
Bivalvia
climate change
coasts
coast
annual cycle
bivalve
gonadosomatic index
surface temperature
latitudinal gradient
temperature
spawning
sea surface temperature
ecosystems
effect
ecosystem
sampling

ASJC Scopus subject areas

  • Aquatic Science

Citar esto

Oyarzún, Pablo A. ; Toro, Jorge E. ; Garcés-Vargas, José ; Alvarado, Claudia ; Guiñez, Ricardo ; Jaramillo, Roberto ; Briones, Carolina ; Campos, Bernardita. / Reproductive patterns of mussel Perumytilus purpuratus (Bivalvia : Mytilidae), along the Chilean coast: Effects caused by climate change?. En: Journal of the Marine Biological Association of the United Kingdom. 2018 ; Vol. 98, N.º 2. pp. 375-385.
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title = "Reproductive patterns of mussel Perumytilus purpuratus (Bivalvia: Mytilidae), along the Chilean coast: Effects caused by climate change?",
abstract = "Reproductive cycles were studied in seven natural populations of the intertidal bivalve Perumytilus purpuratus, distributed in a latitudinal gradient of ~2400 km along the Chilean Pacific coast (20-40°S). The results, both qualitative (gametogenic stages) and quantitative (GSI and GVF), over a period of 24 months, showed that these populations presented asynchrony in the reproductive cycle. Semi-annual cycles in Iquique (20°S), Antofagasta (23°S) and Montemar (32°S), and annual cycles in Caleta Bolfin (23°S), Taltal (25°S), Tumbes (36°S) and Pucatrihue (40°S) (2010-2012) were found. The results indicate that latitude does not have an effect on the development stage, but it does on the spawning date. However, there is a relationship between the reproductive cycles and temperature fluctuations. In addition, there was a significant negative linear correlation between gonadosomatic index and sea surface temperature in the populations studied. The decrease in temperature reduces the rate of development stages and, therefore, increases the reproductive cycles from semi-annual to annual, as evidenced in bivalve samples from Taltal, along a semi-decadal period (2007-2012). From these results, we discuss the likely biological and ecosystem consequences in connection to the effects of climate change in the South Pacific.",
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Reproductive patterns of mussel Perumytilus purpuratus (Bivalvia : Mytilidae), along the Chilean coast: Effects caused by climate change? / Oyarzún, Pablo A.; Toro, Jorge E.; Garcés-Vargas, José; Alvarado, Claudia; Guiñez, Ricardo; Jaramillo, Roberto; Briones, Carolina; Campos, Bernardita.

En: Journal of the Marine Biological Association of the United Kingdom, Vol. 98, N.º 2, 01.03.2018, p. 375-385.

Resultado de la investigación: Article

TY - JOUR

T1 - Reproductive patterns of mussel Perumytilus purpuratus (Bivalvia

T2 - Mytilidae), along the Chilean coast: Effects caused by climate change?

AU - Oyarzún, Pablo A.

AU - Toro, Jorge E.

AU - Garcés-Vargas, José

AU - Alvarado, Claudia

AU - Guiñez, Ricardo

AU - Jaramillo, Roberto

AU - Briones, Carolina

AU - Campos, Bernardita

PY - 2018/3/1

Y1 - 2018/3/1

N2 - Reproductive cycles were studied in seven natural populations of the intertidal bivalve Perumytilus purpuratus, distributed in a latitudinal gradient of ~2400 km along the Chilean Pacific coast (20-40°S). The results, both qualitative (gametogenic stages) and quantitative (GSI and GVF), over a period of 24 months, showed that these populations presented asynchrony in the reproductive cycle. Semi-annual cycles in Iquique (20°S), Antofagasta (23°S) and Montemar (32°S), and annual cycles in Caleta Bolfin (23°S), Taltal (25°S), Tumbes (36°S) and Pucatrihue (40°S) (2010-2012) were found. The results indicate that latitude does not have an effect on the development stage, but it does on the spawning date. However, there is a relationship between the reproductive cycles and temperature fluctuations. In addition, there was a significant negative linear correlation between gonadosomatic index and sea surface temperature in the populations studied. The decrease in temperature reduces the rate of development stages and, therefore, increases the reproductive cycles from semi-annual to annual, as evidenced in bivalve samples from Taltal, along a semi-decadal period (2007-2012). From these results, we discuss the likely biological and ecosystem consequences in connection to the effects of climate change in the South Pacific.

AB - Reproductive cycles were studied in seven natural populations of the intertidal bivalve Perumytilus purpuratus, distributed in a latitudinal gradient of ~2400 km along the Chilean Pacific coast (20-40°S). The results, both qualitative (gametogenic stages) and quantitative (GSI and GVF), over a period of 24 months, showed that these populations presented asynchrony in the reproductive cycle. Semi-annual cycles in Iquique (20°S), Antofagasta (23°S) and Montemar (32°S), and annual cycles in Caleta Bolfin (23°S), Taltal (25°S), Tumbes (36°S) and Pucatrihue (40°S) (2010-2012) were found. The results indicate that latitude does not have an effect on the development stage, but it does on the spawning date. However, there is a relationship between the reproductive cycles and temperature fluctuations. In addition, there was a significant negative linear correlation between gonadosomatic index and sea surface temperature in the populations studied. The decrease in temperature reduces the rate of development stages and, therefore, increases the reproductive cycles from semi-annual to annual, as evidenced in bivalve samples from Taltal, along a semi-decadal period (2007-2012). From these results, we discuss the likely biological and ecosystem consequences in connection to the effects of climate change in the South Pacific.

KW - climate change

KW - gonad development stages

KW - Gonadosomatic index

KW - Mollusca

KW - SST cooling

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