Impact of North Brazil Current rings on local circulation and coral reef fish recruitment to Barbados, West Indies

Cowen, Robert K.; Sponaugle, Su; Paris, Claire B.; Fortuna, John; Lwiza, Kamazima M. M.; Dorsey, S.

doi:10.1016/s0422-9894(03)80157-5

Cited by 25 publications

(35 citation statements)

References 18 publications

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“…The enclosure also limits the vertical movement of larvae. In consequence, vertical swimming behavior and cues that would trigger a response by vertical positioning, such as light intensity, water density, or concentration of chlorophyll (Job and Bellwood 2000;Cowen et al 2003), cannot be investigated with this device. Its purpose is to explore the horizontal (i.e., cardinal) orientation of larvae.…”

Section: Discussionmentioning

confidence: 99%

Detection and quantification of marine larvae orientation in the pelagic environment

Irisson

Guigand

Paris

2009

Limnology & Ocean Methods

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The pelagic larval phase represents a major opportunity for dispersal in benthic organisms, yet behaviors controlling and potentially limiting dispersal are still largely unknown for most larvae. Here, we present a new means of observing the orientation of larvae of all developmental stages in the pelagic environment. A cylindrical frame holding a semi-open arena in which larvae are filmed is set to drift at a controlled depth within the natural environment. Larval trajectories are extracted from video data and used to quantify orientation behavior. Field tests with late-stage coral reef fish larvae show that orientation can be detected from individual larval positions in the arena and can be significantly differentiated from random movement or artifactual behavior.

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Section: Discussionmentioning

confidence: 99%

Detection and quantification of marine larvae orientation in the pelagic environment

Irisson

Guigand

Paris

2009

Limnology & Ocean Methods

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Section: Variables Associated With Pelagic Larval Lifementioning

confidence: 94%

“…Cowen et al (2003) found that 1 NBC ring resulted in higher water retention rates near the west coast of Barbados, although another ring had the opposite effect. The ring event with higher water retention was followed by a large recruitment pulse of Thalassoma bifasciatum, possibly because it increased larval retention (Cowen et al 2003, Sponaugle & Pinkard 2004b. NBC rings are vertically structured (Kelly et al 2000) and induce changes in the vertical distribution of larvae (Cowen et al 2003, Paris & Cowen 2004) that may affect larval retention or advection.…”

Section: Variables Associated With Pelagic Larval Lifementioning

confidence: 94%

“…These rings are up to 400 km in diameter and are formed of low-salinity water that carries pigments and sediments (Muller-Karger et al 1988, Kelly et al 2000, Fratantoni & Glickson 2002. Only 1 set of concurrent studies, focusing on a single species, has specifically examined the impact of these rings on fish recruitment to the west coast of Barbados (Cowen et al 2003, Sponaugle & Pinkard 2004a.…”

Section: Resale or Republication Not Permitted Without Written Consenmentioning

confidence: 99%

“…The ring event with higher water retention was followed by a large recruitment pulse of Thalassoma bifasciatum, possibly because it increased larval retention (Cowen et al 2003, Sponaugle & Pinkard 2004b. NBC rings are vertically structured (Kelly et al 2000) and induce changes in the vertical distribution of larvae (Cowen et al 2003, Paris & Cowen 2004) that may affect larval retention or advection. Because coral reef fish larvae exhibit taxon-specific differences in vertical distribution (Leis 1991, Cowen 2002, the degree of retention during ring passage may differ among taxa as a consequence of the changes in the vertical distribution of larvae in relation to peak onshore flow (Cowen & Castro 1994, Paris & Cowen 2004.…”

mentioning

confidence: 99%

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Variable temporal relationships between environment and recruitment in coral reef fishes

Vallès¹,

Hunte²,

Kramer³

2009

Mar. Ecol. Prog. Ser.

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Studies of coral reef fish recruitment have focused more on factors influencing the return of larvae to reefs and the process of settlement than on factors affecting survival in the plankton, despite the well-documented importance of the larval environment for temperate marine species. We examined the ability of environmental factors to explain temporal patterns of recruitment in 8 taxa of coral reef fishes, distinguishing variables associated with settlement from those associated with the pelagic larval stage. At 10 d intervals over a 17 mo period, we collected newly settled fishes from settlement units in Barbados (West Indies). We collected concurrent data on 3 settlementassociated variables, lunar darkness, wind speed, and tidal amplitude, and 5 larval environment variables, sea-surface temperature, cloud cover, salinity, chlorophyll a concentration, and normalized water-leaving radiance at 555 nm. The last 3 were associated with low-salinity intrusions originating in the Amazon. We used hierarchical partitioning and Mallow's C(p) model selection to identify important variables for each taxon. Temporal patterns of recruitment differed among taxa of which 6 showed significant environmental correlations. Significant settlement variables included lunar darkness and tidal amplitude. Significant larval environment variables were diverse and varied in magnitude and sign across taxa. The effects of larval variables were generally strong relative to settlement variables. The temporal scale of the strongest environmental predictor differed across taxa. Our study supports the views that planktonic factors affecting larval survival substantially influence recruitment in coral reef fishes and that different species are affected differently by a common, temporally variable, planktonic environment.KEY WORDS: Settlement · SMURF · Rubble · Pomacentridae · Labridae · Serranidae · Scaridae · Gobiidae Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 379: [225][226][227][228][229][230][231][232][233][234][235][236][237][238][239][240] 2009 Less attention has been given to factors influencing survivorship of coral reef fishes throughout the pelagic larval duration (hereafter, larval environmental variables, LEV), which have been a prominent focus of fisheries research in temperate marine systems (Anderson 1988, Heath 1992, Leggett & Deblois 1994. Studies on temperate species suggest that relevant LEV would include physical and chemical aspects of the larval environment (e.g. temperature and salinity; Fukuhara 1990, Watanabe et al. 1999, food availability (e.g. Beaugrand et al. 2003 and references therein) and predation (review in Bailey & Houde 1989). For coral reef fishes, experimental studies show that small changes in water temperature have important effects on larval traits, such as larval duration, swimming and growth (Green & Fisher 2004). These are traits likely to affect larval survival in the field (Houde 1987, Anderson 1988. Field studies of coral reef fishes ...

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Climate change and coral reef connectivity

et al. 2009

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Impact of North Brazil Current rings on local circulation and coral reef fish recruitment to Barbados, West Indies

Cited by 25 publications

References 18 publications

Detection and quantification of marine larvae orientation in the pelagic environment

Detection and quantification of marine larvae orientation in the pelagic environment

Variable temporal relationships between environment and recruitment in coral reef fishes

Climate change and coral reef connectivity

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