Observed and simulated swimming trajectories of late-stage coral reef fish larvae off the Florida Keys

Huebert, Klaus B.; Sponaugle, Su

doi:10.3354/ab00200

Cited by 19 publications

(20 citation statements)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…We emphasize our focus on relative amplitude; we cannot predict the source sound levels since we have no knowledge of the distance between the organisms producing these sounds and the hydrophones. The sound levels we report are specific to the hydrophones' positions (30 cm above the sediment and at the reef edge) and are not the sound levels fishes may be experiencing higher in the water column (Leis 2004, Huebert & Sponaugle 2009) and at distance from the reef. These predictions would require source levels and a propagation model to predict transmission loss that takes into account the complexities of the physical environment.…”

Section: Long-term Samplingmentioning

confidence: 64%

Predicting the reef acoustic cuescape from the perspective of larval fishes across a habitat quality gradient

Salas¹,

Altieri²,

Wilson³

et al. 2018

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

The combined acoustic activity of soniferous organisms living in benthic habitats produces habitat-specific soundscapes, which are predicted to influence fish and invertebrate larval behavior during the settlement process. Not every sound will have the amplitude and frequency characteristics relative to hearing sensitivity to be used as an acoustic cue, thus the cuescape is a subset of the soundscape. These sounds vary through space and time, and little is known about how this variability could influence their role in settlement. We recorded the soundscapes of 4 coral reefs in Caribbean Panama for 6 wk and conservatively identified the sounds most likely to compose the cuescapes used by larval fishes. While these sites represented the variation in reef condition across the study area, we observed the same 4 dominant taxa groups emerge as the most likely producers of acoustic cues. These results were consistent across both time and space when compared to short-term recordings taken at these 4 reefs and at an additional 11 sites 2 yr prior. Next, we used an individual-based model to test the relationship between settlement success and the natural spatiotemporal variability we observed in these potential cues. Temporal variation in the sounds resulted in variation in settlement success; however, even shortrange, intermittent cues improved the likelihood of settlement. Overall, we observed similar acoustic cuescapes across reefs that varied in condition, suggesting that cuescapes can be resilient to some forms of reef degradation by retaining sounds potentially useful to larval fishes for both navigation and habitat selection.KEY WORDS: Coral reef · Soundscape · Larval fish · Larval settlement · Acoustics · Modeling · Cues · Fish behavior Resale or republication not permitted without written consent of the publisher

show abstract

Section: Long-term Samplingmentioning

confidence: 64%

Predicting the reef acoustic cuescape from the perspective of larval fishes across a habitat quality gradient

Salas¹,

Altieri²,

Wilson³

et al. 2018

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

show abstract

“…Yet a species in which only within-trajectory orientation is present can have an increased probability of finding settlement habitat if the larvae maintain their within-trajectory orientation over time (Huebert and Sponaugle 2009), and larvae of such a species will have dispersal outcomes very different from passive drift with the currents.…”

Section: Orientationmentioning

confidence: 99%

Ontogeny of behaviour in larvae of marine demersal fishes

J.M

2010

Ichthyol Res

View full text Add to dashboard Cite

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.

show abstract

“…Self-settlement within the Keys is indicated where reddish colors (high probability of connectivity) track the white dia gonal line. Reddish colors below diagonal line indicate downstream settlement; reddish colors above line indicate upstream settlement in a particular direction (Huebert & Sponaugle 2009). Elsewhere, larvae of other pomacentrids have been shown to orient either to or from island reefs depending on local conditions (reviewed in Leis 2006).…”

Section: Variation In Larval Behaviormentioning

confidence: 99%

Observed and modeled larval settlement of a reef fish to the Florida Keys

Sponaugle

Paris

Walter

et al. 2012

Mar. Ecol. Prog. Ser.

Self Cite

View full text Add to dashboard Cite

The bipartite life history of most marine organisms leads to complex patterns of replenishment in benthic populations. High variation in adult spawning, dynamic oceanographic currents, and often unknown larval behaviors create challenges in accurately predicting spatial and temporal patterns in the supply and settlement of pelagic larvae to nearshore juvenile habitats. Yet, understanding and predicting larval exchange underlies population dynamics, ecological interactions, and conservation practices. We compared observed patterns of larval settlement of the bicolor damselfish Stegastes partitus (Pomacentridae) along the Florida Keys, USA, to those obtained through model simulations using a high-resolution biophysical model parameterized with species-specific early life-history information. Light traps intercepted settlement-stage larvae, and divers censused new recruits at 2 replicate reefs in each of the upper (eastern) (UK) and lower (western) Keys (LK) during 6 peak settlement periods. Damselfish settlement and recruitment to the LK consistently exceeded that to the UK. Remarkably, model simulations successfully explained 70% of temporal variation in settlement within each region. However, the model did not capture the relative magnitude of observed settlement between the regions: settlement was either overestimated in the UK or underestimated in the LK. Potential causes include weak larval settlement cues or larval ability to navigate and swim to settlement habitat in the UK, higher larval condition and survival in the more productive waters of the LK, or substantial spatial variation in reproductive output. Connectivity matrices indicate that a majority of S. partitus settlement to the Florida Keys is sourced from Keys populations.

show abstract

Observed and simulated swimming trajectories of late-stage coral reef fish larvae off the Florida Keys

Cited by 19 publications

References 33 publications

Predicting the reef acoustic cuescape from the perspective of larval fishes across a habitat quality gradient

Predicting the reef acoustic cuescape from the perspective of larval fishes across a habitat quality gradient

Ontogeny of behaviour in larvae of marine demersal fishes

Observed and modeled larval settlement of a reef fish to the Florida Keys

Contact Info

Product

Resources

About