2003
DOI: 10.1890/0012-9658(2003)084[0384:svilca]2.0.co;2
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Seasonal Variation in Larval Condition and Postsettlement Performance of the Barnacle Semibalanus Balanoides

Abstract: Planktonic larvae of marine organisms may vary greatly in individual condition. Larval quality, metamorphosis, juvenile growth, and mortality of the barnacle Semibalanus balanoides were monitored in the field and laboratory for 4 mo to determine whether propagule quality varied among daily cohorts and influenced juvenile performance. I measured the organic content of individual planktonic cyprids sampled on 15 days during the recruitment season. Settlers were monitored daily on natural substrata in the field a… Show more

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Cited by 86 publications
(89 citation statements)
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“…The results of the present study clearly indicate that prolonged larval development along with mortality are the major factors controlling the settlement of cypris on the substratum in the laboratory. Earlier studies by Jarrett (2003) suggest that mortality of barnacle nauplii in the field during the early juvenile stage is mediated by external factors. The high mortality of larvae in the laboratory, particularly during the winter season indicate that early juvenile life is dependent not only on external factors, but also on internal ones.…”
Section: Discussionmentioning
confidence: 98%
“…The results of the present study clearly indicate that prolonged larval development along with mortality are the major factors controlling the settlement of cypris on the substratum in the laboratory. Earlier studies by Jarrett (2003) suggest that mortality of barnacle nauplii in the field during the early juvenile stage is mediated by external factors. The high mortality of larvae in the laboratory, particularly during the winter season indicate that early juvenile life is dependent not only on external factors, but also on internal ones.…”
Section: Discussionmentioning
confidence: 98%
“…Porém, trabalhos recentes demonstraram que características intrínsecas das larvas tais como a condição fi siológica e conteúdo energético podem modifi car: 1) o comportamento de busca de substrato para o assentamento , Toonen & Pawlik 2001, 2) o sucesso durante a metamorfose (Toonen & Pawlik 2001) e 3) a sobrevivência dos recrutas (Jarret & Pechenik 1997, Jarret 2003. Em condições de laboratório, foi demonstrado que o conteúdo orgânico de cipris (larvas competentes para o assentamento) da espécie Semibalanus balanoides e a capacidade de crescimento dos juvenis produzidos variaram em uma escala temporal curta (poucos dias dentro da mesma estação reprodutiva).…”
Section: A Qualidade Fisiológica Da Larva E Sua Importância No Assentunclassified
“…A relação positiva entre qualidade fi siológica das larvas (fator interno) e o crescimento dos juvenis encontrada em laboratório pode ser modifi cada por fatores externos observados em condições de campo tais como variações de temperatura e suprimento de alimento. Jarret (2003) encontrou que cipris de diferentes coortes diárias (ao longo da estação reprodutiva) apresentaram qualidade fi siológica decrescente. Em condições controladas de laboratório, a taxa média de crescimento dos juvenis se relacionou positivamente com a qualidade fi siológica dos cipris, sendo maior para as primeiras coortes e diminuindo nas últimas coortes da estação reprodutiva.…”
Section: A Qualidade Fisiológica Da Larva E Sua Importância No Assentunclassified
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