Size-Frequency Distribution Patterns of the Juvenile Stages of the Pedunculate Barnacle, Pollicipes Pol Ymer Us Sowerby, 1833 (Cirripedia, Lepadomorpha)

Hoffman, Daniel L.

doi:10.1163/156854084x00216

Cited by 15 publications

(16 citation statements)

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“…Le recrutement de Pollicipes pollicipes se traduit par la cimentarisation des larves cypris de taille moyenne RC = 0,5 mm (Lewis, 1975), de préférence, aux pédoncules des adultes (Barnes & Reese, 1960 ;Lewis, 1975 ;Hoffman, 1984) ; lesquels pédoncules constituant un moyen de recrutement dans un environnement fortement concurrentiel (Hoffman, 1989), et donnant aux nouveaux recrutés un certain degré de protection contre la dessiccation, la prédation, et la forte action des vagues (Hoz & García, 1993 ;Borja, 2003).…”

Section: Recrutementunclassified

Pollicipes pollicipes (Gmelin, 1789) (Cirripède, Lepadomorphe) : étude de la croissance et de la dynamique des populations dans la région de Mirleft (sud ouest Marocain)

Elkhou¹,

Boukaici²,

Bergayou³

et al. 2012

Crustac

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Section: Recrutementunclassified

Pollicipes pollicipes (Gmelin, 1789) (Cirripède, Lepadomorphe) : étude de la croissance et de la dynamique des populations dans la région de Mirleft (sud ouest Marocain)

Elkhou¹,

Boukaici²,

Bergayou³

et al. 2012

Crustac

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“…For example, migrations of juvenile gooseneck barnacles (Pollicipes polymerus) down the adult peduncle can be tracked by following a gradient of juvenile sizes from their settlement site near the top of the adult peduncle to large juveniles around the base of the adult peduncle (Hoffman 1984). Similar migrations may explain the spatial pattern of the sizes of 'Bathymodiolus' childressi across the BP mussel bed.…”

Section: Alternative Hypothesesmentioning

confidence: 99%

Pre- and post-settlement factors controlling spatial variation in recruitment across a cold-seep mussel bed

Arellano¹,

Young²

2010

Mar. Ecol. Prog. Ser.

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The size structure of a population of the mussel 'Bathymodiolus' childressi shifts dramatically across the mussel bed encircling the Brine Pool NR 1 cold seep in the Gulf of Mexico. While the fringes of the bed are inhabited by large mussels, small juveniles are abundant only at the edge of the pool, leading to the inference that larvae settle preferentially near the source of methane. We used in situ experiments to test whether this shift in size distribution is structured by differences in larval supply, settlement, substratum selection by settling larvae, juvenile mortality, growth, or predation across the mussel bed. We investigated the variation of these factors adjacent to the pool, at the fringes of the mussel bed, and also 2 m away from the bed. Neither the supply of larvae nor the density of settlers (< 0.5 mm long) collected on settlement plates differed among the 3 zones. Juveniles (mean length: 9 mm) survived and grew equally well in all 3 zones. Survival was higher in caged than in uncaged juveniles (5 to 15 mm long), but mortality of uncaged juveniles was similar at all distances from the pool, suggesting that predation alone does not cause the observed differences in size structure. We reject the prevailing hypothesis that the distribution pattern can be attributed to settlement preferences of larvae alone. We hypothesize that very early post-settlement mortality, secondary settlement, and/or later migration of juveniles play a role in establishing and maintaining the persistent pattern of size structure across this mussel bed.

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“…The most widely used variable for growth and size structure studies in Pollicipes spp. is the maximum rostro-carinal length (RC) (Phillips 2005, Boukaici et al 2012, although other variables such as total length (Hoffman 1984), capitulum height (Page 1986, Cardoso andYule 1995) and capitulum base diameter (Parada et al 2012) have also been used.…”

Section: Introductionmentioning

confidence: 99%

Growth rate variation of the stalked barnacle Pollicipes pollicipes (Crustacea: Cirripedia) using calcein as a chemical marker

et al. 2015

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Summary:This study describes the use of calcein as a chemical tagging methodology to estimate growth rate variation of the stalked barnacle Pollicipes pollicipes, an ecologically important intertidal species and economic resource, in SW Portugal. Calcein tagging had a high success rate (94%) in marking both juvenile and adult barnacles for a period of 2.5 months, providing a valuable method for obtaining reliable data in growth studies of P. pollicipes. Growth rate decreased with barnacle size and was highly variable amongst individuals, particularly in smaller barnacles. No effect of shore level on barnacle growth was detected. Growth rates were higher in smaller juvenile barnacles, peaking at a 1.1-mm monthly increment in rostro-carinal length (RC) for individuals with RC=5 mm, and decreased with barnacle size (monthly growth rates of 0.5 mm for adult barnacles with RC~12.5 mm). Growth rates observed in adults with commercial interest (RC≥18 mm) was <0.25 mm per month. The advantages of tagging P. pollicipes with calcein were the possibility of mass marking individual barnacles of different size cohorts within a short period (less than 1 day of manipulation); and reduced time of fieldwork, which is very important because this species inhabits very exposed rocky shores.Keywords: stalked barnacle; Pollicipes; growth rate; calcein; tagging; intertidal; Portugal.Variación de la tasa de crecimiento del percebe Pollicipes pollicipes (Crustacea: Cirripedia) utilizando calceína como marcador químico Resumen: Este estudio describe el uso de calceína como marcador químico para estimar la variación de la tasa de crecimiento del percebe Pollicipes pollicipes, una especie ecológicamente importante del intermareal rocoso y un importante recurso económico en la Península Ibérica. El uso de calceína tuvo una alta tasa de éxito (94%) para el marcaje de juveniles y adultos durante un período de 2.5 meses, proporcionando un método valioso para obtener datos fiables. La tasa de crecimiento disminuyó con el tamaño y fue muy variable entre individuos, principalmente en los percebes más pequeños. No se detectó ningún efecto del nivel intermareal en el crecimiento de percebes. Las tasas de crecimiento fueron más altas en los percebes juveniles más pequeños, alcanzando un máximo de 1.1 mm de incremento mensual de longitud rostro-carenal (RC) para individuos con RC=5 mm, y disminuyeron con el tamaño del percebe (tasas de crecimiento mensual de 0.5 mm para percebes adultos con RC~12.5 mm). Las tasas de crecimiento observadas en los adultos con interés comercial (RC≥18 mm) fueron <0.25 mm por mes. Las ventajas de la marcación de P. pollicipes con calceína fueron: la capacidad de tinción en masa de percebes de diferentes cohortes en un período corto (menos de 1 día de manipulación) y, por tanto, la reducción del tiempo de trabajo de campo, que es muy importante ya que esta especie habita costas rocosas muy expuestas.Palabras clave: percebes; Pollicipes; tasa de crecimiento; calceína; marcación; intermareal; Portugal.Citation/Como citar es...

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Size-Frequency Distribution Patterns of the Juvenile Stages of the Pedunculate Barnacle, Pollicipes Pol Ymer Us Sowerby, 1833 (Cirripedia, Lepadomorpha)

Cited by 15 publications

References 0 publications

Pollicipes pollicipes (Gmelin, 1789) (Cirripède, Lepadomorphe) : étude de la croissance et de la dynamique des populations dans la région de Mirleft (sud ouest Marocain)

Pollicipes pollicipes (Gmelin, 1789) (Cirripède, Lepadomorphe) : étude de la croissance et de la dynamique des populations dans la région de Mirleft (sud ouest Marocain)

Pre- and post-settlement factors controlling spatial variation in recruitment across a cold-seep mussel bed

Growth rate variation of the stalked barnacle Pollicipes pollicipes (Crustacea: Cirripedia) using calcein as a chemical marker

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