Barokinesis and depth regulation by pelagic coral reef fish larvae

Huebert, Klaus B.

doi:10.3354/meps07576

Cited by 18 publications

(23 citation statements)

References 31 publications

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“…Leis & Carson-Ewart 2001, Leis 2004 shows that individual larvae often swim over a range of depths during short time intervals and that larvae select different depths in different locations, a clear indication that buoyancy per se is not an overriding influence in depth selection. In 2 families, a loose correlation (R 2 = 0.45 to 0.47) was found between pressure preference of larvae tested in the laboratory and their capture depth, but no correlation was found in 2 other families (Huebert 2008). This again suggests that buoyancy is not a strong determinant of vertical distribution, especially in larvae that swim strongly.…”

Section: Discussionmentioning

confidence: 94%

“…Where significant autocorrelation was detected, depth observations were omitted until autocorrelation was eliminated (e.g. if autocorrelation at a lag of 1 was detected, every second depth observation was omitted from the analysis; for more details see Leis 2004, Huebert 2008). In about 13% of individuals, no significant autocorrelation was found, so all observations were used.…”

Section: Methodsmentioning

confidence: 99%

See 1 more Smart Citation

Ontogeny of in situ behaviours relevant to dispersal and population connectivity in larvae of coral-reef fishes

J.M¹,

Hay²,

Howarth³

2009

Mar. Ecol. Prog. Ser.

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Behaviour during the pelagic larval stage of coral-reef fishes can strongly influence dispersal, yet little is known of behavioural ontogeny. Speed, orientation and vertical distribution of larvae of 4 coral-reef fishes ( ) across the size range. All but the smallest, slowest larvae had Reynolds numbers >1000, and so swam in an inertial environment. In situ speeds were 39 to 87% of critical speeds, and smaller larvae swam nearer to critical speed than larger larvae. Of the larvae 71 to 90% swam directionally, but neither percentage of directional individuals nor orientation precision increased with size. P. teira swam toward the southwest (offshore). Epinephelus species undertook ontogenetic changes in orientation. Neither orientation nor ontogenetic changes were found in L. malabaricus. Horizontal swimming can influence dispersal directly. Vertical distribution, which differed among species, can influence dispersal indirectly. P. teira became surface orientated, ascending 0.8 m per mm increase in length. L. malabaricus descended 0.5 m per mm increase in length. E. coioides ascended 0.4 m per mm increase in length. E. fuscoguttatus preferred greater depths, and lacked ontogenetic changes. The behaviours and their development show these larval reef fishes can influence dispersal in speciesspecific ways.KEY WORDS: Connectivity · Dispersal · Larva · Ontogeny · Development · Coral reef · Fish · Serranidae · Lutjanidae · EphippidaeResale or republication not permitted without written consent of the publisher

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Section: Discussionmentioning

confidence: 94%

Section: Methodsmentioning

confidence: 99%

Ontogeny of in situ behaviours relevant to dispersal and population connectivity in larvae of coral-reef fishes

J.M¹,

Hay²,

Howarth³

2009

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

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“…Additionally, Petrolisthes larvae were observed to continue swimming downwards upon reaching the bottom of the column during our trials, suggesting they had not yet reached their desired depth, where they would be found in the field (Morgan et al 2009b). Laboratory trials using a taller water column or a pressure chamber would be necessary to definitively determine their depth preferences in the laboratory (Huebert 2008). The maintenance of these relative positions in both darkness and light indicates that these swimming patterns reflect endogenous depth preferences that are likely cued by hydrostatic pressure or gravity (Sulkin 1984, Forward & Buswell 1989.…”

Section: Discussionmentioning

confidence: 99%

Interspecific differences in depth preference: regulation of larval transport in an upwelling system

Miller¹,

Morgan²

2013

Mar. Ecol. Prog. Ser.

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“…Or, changes in vertical position can be initiated and quantified by changes in pressure. The use of such a pressure apparatus showed that in larvae of two of the four families studied (Balistidae, Pomacanthidae), barokinesis behaviour in the laboratory was a good predictor of the depth at which the wild larvae were captured in the ocean (Huebert 2008). Larvae of size 3-16 mm were used, and based on data presented in the paper, no ontogenetic change was found in the predicted depth (i.e.…”

Section: Vertical Distributionmentioning

confidence: 99%

Ontogeny of behaviour in larvae of marine demersal fishes

J.M

2010

Ichthyol Res

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The development of behaviours that are relevant to larval dispersal of marine, demersal fishes is poorly understood. This review focuses on recent work that attempts to quantify the development of swimming, orientation, vertical distribution and sensory abilities. These behaviours are developed enough to influence dispersal outcomes during most of the pelagic larval stage. Larvae swim in the ocean at speeds similar to the currents found in many locations and at 3-15 body lengths per second (BL s -1 ), although, based on laboratory measurements, species from cold environments swim slower than those from warm environments. At least in warm-water species, larvae swim in an inertial hydrodynamic environment for most of their pelagic period. Unfed swimming endurance is [10 km from about 8-10 mm, and reaches more than 50 km before settlement in several species. Larval fishes are efficient swimmers. In most species, a large majority of larvae have orientated swimming in the ocean, but the precision of orientation does not improve with growth. Swimming direction of the larvae frequently changes ontogenetically. Vertical distribution changes ontogenetically in most species, and both ontogenetic ascents and descents are found. Development of schooling is poorly understood, but it may influence speed, orientation and vertical distribution. Sensory abilities (hearing, olfaction, vision) form early, are well developed and are able to detect cues relevant to orientation for most of the pelagic larval stage. All this indicates that the passive portion of the pelagic larval duration will be short, at least in most warm-water species, and that behaviour must be taken into account when considering dispersal, and in particular in dispersal models. Although quantitative information on the ontogeny of some behaviours is available for a relatively small number of species, more research in this field is required, especially on species from colder waters.

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Barokinesis and depth regulation by pelagic coral reef fish larvae

Cited by 18 publications

References 31 publications

Ontogeny of in situ behaviours relevant to dispersal and population connectivity in larvae of coral-reef fishes

Ontogeny of in situ behaviours relevant to dispersal and population connectivity in larvae of coral-reef fishes

Interspecific differences in depth preference: regulation of larval transport in an upwelling system

Ontogeny of behaviour in larvae of marine demersal fishes

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