Larval development of <i>Chthamalus malayensis</i> (Cirripedia: Thoracica) reared in the laboratory

Yan, Yan; Chan, Benny K. K.

doi:10.1017/s0025315401004283

Cited by 29 publications

(25 citation statements)

References 16 publications

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“…There is no information on the larval ecology of these 2 species. Estimates of the larval development of tropical chthamalid barnacles (Yan & Chan 2001, Yan 2003 range from 13 to 21 d (depending on temperature), which is a relatively short period compared to those in other invertebrates. Assessing the duration of pelagic stages of littorinids is far more difficult.…”

Section: Abstract: Reproductive Timing · Propagule Retention · Rockymentioning

confidence: 99%

Retention-favorable timing of propagule release in barnacles and periwinkles

Bueno¹,

Moser

Tocci³

et al. 2010

Mar. Ecol. Prog. Ser.

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Recent studies on the ecology of marine larvae suggest that retention near coastal areas and self-recruitment are probably much more common than previously thought. In light of this, the advective potential of pelagic stages can be partially determined by the timing of propagule release. We sampled the upper-shore levels of a subtropical coastline in southeastern Brazil to examine the temporal patterns of propagule release for the common barnacle Chthamalus bisinuatus and the periwinkle Nodilittorina lineolata. The release timing in both species was very consistent between sites a few kilometers apart. Barnacles released nauplii in a rhythmic pattern, mostly coinciding with neap tides, when the speed of tidal currents was lowest. There was no variation in propagule release in relation to diel or flood -ebb tidal cycles. Periwinkles released propagules in a very irregular pattern, which remarkably matched a time series of wave heights. Egg capsules were released during periods of rough seas, when onshore surface currents were expected to prevail. Eggs were released mostly during ebb tides, and there was no diel variation. Propagule release rhythms are usually viewed as a means to ensure fast offshore advection, thus avoiding presumed hazardous conditions for larvae. However, propagule release strategies in these upper-shore species would more likely contribute to the retention of offspring close to parental stocks. KEY WORDS: Reproductive timing · Propagule retention · Rocky shoresResale or republication not permitted without written consent of the publisher Mar Ecol Prog Ser 414: 155-165, 2010 gan 1995). In the case of intertidal brachyuran crabs, an extensive dataset suggests that hatching is timed with different environmental cycles, so that optimal release is expected to take place during spring tides, at nocturnal ebbing periods, ensuring a fast offshore advection to a habitat patch where predation risk is lower (Forward 1987, Morgan 1995. By this means, larvae may easily be transported off coastal retention zones. However, intertidal crabs are mobile animals which can undertake tidal excursions prior to hatching and larval development is relatively long, usually lasting from 3 to 10 wk (Hines 1986). In rocky shores, the most abundant organisms are sessile or sedentary, and their larvae develop relatively faster. Many of these animals also respond to environmental cues, which are far less predictable. For instance, phytoplankton blooms were shown to trigger spawning and larval release events in different marine invertebrates (Barnes 1962, Starr et al. 1990, and mechanical stimulation, which may simulate wave action, is frequently used to obtain gametes in mussels and polychaetes in the laboratory (e.g. Young 1945, Eckelbarger 1976. In such cases, ripe individuals must be capable of retaining their fully developed eggs until they perceive release-inducing stimuli. Because these environmental cues are highly stochastic, they are also very difficult to anticipate. Endogenous control in such species...

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Section: Abstract: Reproductive Timing · Propagule Retention · Rockymentioning

confidence: 99%

Retention-favorable timing of propagule release in barnacles and periwinkles

Bueno¹,

Moser

Tocci³

et al. 2010

Mar. Ecol. Prog. Ser.

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“…The setation of the terminal segment of the naupliar antennule of this species in stages III-V is also typical of the most megabalanidae nauplii Anderson 1987, 1988;Choi et al 1992;Kado and Hirano 1994;Miller and Roughgarden 1994;Thiyagarajan et al 1997, Yan andChan 2001;Severino and Resgalla 2005;Lopez et al 2008).…”

Section: Discussionmentioning

confidence: 53%

“…In the naupliar stages II and III, however, they are smaller than the larvae of other species of Megabalanus. In the stages IV and V, nauplii of M. azoricus are larger, and in stage VI smaller than the nauplii of M. californicus, M. rosa, and M. vulcano Anderson 1987, 1988;Choi et al 1992;Thiyagarajan et al 1997;Yan and Chan 2001;Severino and Resgalla 2005;Lopez et al 2008).…”

Section: Discussionmentioning

confidence: 99%

A description of the larval development of Megabalanus azoricus (Pilsbry, 1916) reared in the laboratory

2013

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This study provides the first description of the larval development of the commercially exploited barnacle Megabalanus azoricus. It describes the changes in larval size and shape as well as the general morphology and duration of each larval stage. Embryos were obtained from gravid specimens collected at São Miguel Island and reared through six naupliar stages to the cypris stage in laboratory conditions. The planktotrophic nauplii reached the cypris stage after 14 days of hatching in individual cultures at 20°C under natural illumination and fed with phytoplankton (Chaetoceros gracilis, Isochrysis sp., and Tetraselmis sp.). The nauplius of M. azoricus has a normal size compared with nauplii of other congeneric species, ranging between the 261 lm (nauplius I) and 912 lm (nauplius VI). This work provides the first description of larvae of the genus Megabalanus for the Portuguese oceanic islands and provides comparisons with congeneric species in other parts of the world.

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“…Although there are common species between the N Coast Ecosystem and the Kuroshio Ecosystem, latitudinal variation of species abundance occurs from the Kuroshio Ecosystem to the N Coast Ecosystem. Chthamalus malayensis and Chthamalus moro are warm water species common in the South China Sea region, including Hong Kong, the Philippines, and SE Asian locations (Yan & Chan, 2001;Rosell, 1972Rosell, , 1986Southward & Newman, 2003;Tsang et al, 2008). These two species had higher abundance in the southern locations of Taiwan main island and their abundance decreased from the E coast to the NE coast and were absent from the N coast locations.…”

Section: Biogeography Marine Ecosystems and Environmental Factorsmentioning

confidence: 99%