Near-bottom hydrodynamic effects on postlarval settlement in the American lobster Homarus americanus

Lillis, Ashlee; Snelgrove, Paul V. R.

doi:10.3354/meps08427

Cited by 12 publications

(5 citation statements)

References 42 publications

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“…Orientation, habitat selection and settlement in response to physical and chemical stimuli have been demonstrated for larvae of a variety of taxonomic groups, and larvae likely integrate a suite of sensory cues at multiple spatial scales to successfully locate preferred settlement substrates [3], [7], [8]. Studies of larval invertebrate settlement cues have focused largely on chemical compounds [9], [10] and habitat characteristics, such as surface texture or near-bottom hydrodynamics [11]–[13], but these stimuli are only detectable by larvae that are in close proximity of the seafloor [7], [12]. While a combination of habitat characteristics, such as local flow patterns, chemical exudates, light intensity and substrate topography are used by benthic invertebrate larvae in small-scale habitat selection, it is still unclear how larvae effectively locate discrete patches of bottom settlement habitat as they disperse over kilometers, especially for species that are relatively weak swimmers compared to surrounding currents.…”

Section: Introductionmentioning

confidence: 99%

Oyster Larvae Settle in Response to Habitat-Associated Underwater Sounds

2013

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Following a planktonic dispersal period of days to months, the larvae of benthic marine organisms must locate suitable seafloor habitat in which to settle and metamorphose. For animals that are sessile or sedentary as adults, settlement onto substrates that are adequate for survival and reproduction is particularly critical, yet represents a challenge since patchily distributed settlement sites may be difficult to find along a coast or within an estuary. Recent studies have demonstrated that the underwater soundscape, the distinct sounds that emanate from habitats and contain information about their biological and physical characteristics, may serve as broad-scale environmental cue for marine larvae to find satisfactory settlement sites. Here, we contrast the acoustic characteristics of oyster reef and off-reef soft bottoms, and investigate the effect of habitat-associated estuarine sound on the settlement patterns of an economically and ecologically important reef-building bivalve, the Eastern oyster (Crassostrea virginica). Subtidal oyster reefs in coastal North Carolina, USA show distinct acoustic signatures compared to adjacent off-reef soft bottom habitats, characterized by consistently higher levels of sound in the 1.5–20 kHz range. Manipulative laboratory playback experiments found increased settlement in larval oyster cultures exposed to oyster reef sound compared to unstructured soft bottom sound or no sound treatments. In field experiments, ambient reef sound produced higher levels of oyster settlement in larval cultures than did off-reef sound treatments. The results suggest that oyster larvae have the ability to respond to sounds indicative of optimal settlement sites, and this is the first evidence that habitat-related differences in estuarine sounds influence the settlement of a mollusk. Habitat-specific sound characteristics may represent an important settlement and habitat selection cue for estuarine invertebrates and could play a role in driving settlement and recruitment patterns in marine communities.

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Section: Introductionmentioning

confidence: 99%

Oyster Larvae Settle in Response to Habitat-Associated Underwater Sounds

2013

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“…Lobster settlement behavior may be affected by spatial and temporal differences in oceanographic conditions, such as flow and water mass temperature (Lillis and Snelgrove, ; Annis et al ., ) and should, therefore, be considered when examining and predicting settlement patterns. Moreover, water masses encountered by larvae may influence their growth and survival through temperature‐mediated effects (Cowen and Sponaugle, ).…”

Section: Discussionmentioning

confidence: 99%

Settlement behavior of American lobster (Homarus americanus): effect of female origin and developmental temperature

Barret

Miron

Ouellet

et al. 2016

Fisheries Oceanography

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The benthic settlement success of American lobster (Homarus americanus) postlarvae is a key factor in population dynamics, with the temperature being a key factor. Given the spatial distribution of the species, its pelagic larvae probably encounter various thermal zones during development. Little information is available on the ability of lobster larvae to acclimate to temperature or if this ability varies among geographic areas. The main objectives of this study were to characterize (i) the settlement behavior of the postlarvae in relation to (a) temperature during larval development and (b) the geographic origin of the maternal parent and (ii) the behavioral response of postlarvae with different thermal histories in the presence/absence of a thermocline. Results did not support the hypothesis of thermal adaptation among local populations, as settlement behavior of postlarvae did not differ among females from different geographic regions. In contrast, larval survival and settlement behavior and postlarval energetic conditions varied with development temperature. Behavioral plasticity in the benthic settlement was observed in relation to temperature structure of the experimental water column. This study suggests that there may be links between development temperature and the natural variability in survival and settlement of American lobsters. Findings emphasize the need for an integrated approach in lobster recruitment studies with the inclusion of behavior in dispersion models.

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“…Environmental conditions, including physical, chemical, and biological factors in natural habitats, highly determine the recruitment rates of lobster larvae (Keulder 2005). Several authors have previously reported the physical and chemical characteristics of the natural 1643 settlement areas of lobster larvae (Amin et al 2022b;Boudreau et al 1992;Lillis and Snelgrove 2010). However, studies investigating biological aspects of settlement habitat in the natural environment of lobster larvae are very limited.…”

Section: Introductionmentioning

confidence: 99%

Diversity and abundance of plankton community in Tawang and Prigi Bays, natural settlement habitats of Spiny Lobster larvae in East Java, Indonesia

et al. 2023

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Abstract. Masithah ED, Fadhilah MG, Amin M, Nur KU, Musdalifah L, Samara SH, Cahyoko Y, Alimuddin, Alim S, Setyono BDH. 2023. Diversity and abundance of plankton community in Prigi and Tawang Bays, natural settlement habitats of Spiny Lobster larvae in East Java, Indonesia. Biodiversitas 24: 1642-1649. Prigi and Tawang Bays have been well-known as settlement areas for spiny lobster larvae, Panulirus spp., in East Java, Indonesia. These locations may suggest suitable environments including diet availability for lobster larvae. Therefore, the present study aimed to investigate the type and abundance of plankton in both locations to discover potential live diets for lobster larvae. This study also explored plankton’s diversity, uniformity, and dominance indices in both locations. Plankton samples in each location were collected using a plankton net at four depths: 0.3 m, 2.5 m, 5 m, and 20 m with three replicates. The results revealed that 17 plankton species were identified from 0.30 m depth, 13 at 2.5 m, 11 at 5 m, and 13 at 20 m depth at Prigi Bay. In addition, 17 plankton species were discovered at 0.3 m depth, 11 at 2.5 m, 12 at 5 m, and 12 at 20 m at Tawang Bay. Among the most abundant species were Acartia sp., Calanus sp., Paracyclopina sp., and Oithona sp. The diversity indices observed in Karanggongso of Prigi Bay and Tawang Bay ranged from 2.02-2.49 and 2.17-2.65, respectively, within the moderate range. Similarly, the uniformity indices observed at both locations were moderate, ranging from 0.38-0.45 at Prigi Bay and 0.41-0.46 at Tawang Bay. There were no dominant species at both locations, as the dominance index values ranged from 0.13-0.30. Among the identified plankton species, Oithona sp., Calanus sp., Paracyclopina sp., and Acartia sp. are considered potential live feed for lobster larvae, and thus should be further studied.

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Near-bottom hydrodynamic effects on postlarval settlement in the American lobster Homarus americanus

Cited by 12 publications

References 42 publications

Oyster Larvae Settle in Response to Habitat-Associated Underwater Sounds

Oyster Larvae Settle in Response to Habitat-Associated Underwater Sounds

Settlement behavior of American lobster (Homarus americanus): effect of female origin and developmental temperature

Diversity and abundance of plankton community in Tawang and Prigi Bays, natural settlement habitats of Spiny Lobster larvae in East Java, Indonesia

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