Swimming performance of marine fish larvae: review of a universal trait under ecological and environmental pressure

Reviews in Fish Biology and Fisheries, Journal Year: 2020, Volume and Issue: 30(1), P. 93 - 108

Published: Jan. 2, 2020

Language: Английский

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Coral Reef Population Genomics in an Age of Global Change

Annual Review of Genetics, Journal Year: 2023, Volume and Issue: 57(1), P. 87 - 115

Published: June 29, 2023

Coral reefs are both exceptionally biodiverse and threatened by climate change other human activities. Here, we review population genomic processes in coral reef taxa their importance for understanding responses to global change. Many on characterized weak genetic drift, extensive gene flow, strong selection from complex biotic abiotic environments, which together present a fascinating test of microevolutionary theory. Selection, hybridization have played will continue play an important role the adaptation or extinction face rapid environmental change, but research remains limited compared urgent needs. Critical areas future investigation include evolutionary potential mechanisms local adaptation, developing historical baselines, building greater capacity countries where most diversity is concentrated.

Language: Английский

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Long lasting effects of early temperature exposure on the swimming performance and skeleton development of metamorphosing Gilthead seabream (Sparus aurata L.) larvae

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: April 22, 2021

Abstract Temperatures experienced during early ontogeny significantly influence fish phenotypes, with clear consequences for the wild and reared stocks. We examined effect of temperature (17, 20, or 23 °C) short embryonic yolk-sac larval period, on swimming performance skeleton metamorphosing Gilthead seabream larvae. In following ontogenetic all were subjected to common (20 °C). The critical speed larvae was decreased from 9.7 ± 0.6 TL/s (total length per second) at 17 °C developmental (DT) 8.7 8.8 0.7 20 DT respectively ( p < 0.05). Swimming correlated body shape Compared rest groups, presented a slender shape, longer caudal peduncle, terminal mouth ventrally transposed pectoral fins. Moreover, affected relative depth heart ventricle (VD/TL , 0.05), which comparatively increased DT. Finally, incidence caudal-fin abnormalities 0.05) increase To our knowledge, this is first evidence significant period later stages.

Language: Английский

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The influence of habitat association on swimming performance in marine teleost fish larvae

Fish and Fisheries, Journal Year: 2021, Volume and Issue: 22(6), P. 1187 - 1212

Published: June 21, 2021

Abstract Latitude and body size are generally considered key drivers of swimming performance for larval marine fishes, but evidence suggests that evolutionary relationships habitat may also be important. We used a comparative phylogenetic framework, data synthesis case study approach to investigate how differs among larvae fish species across latitude. First, we investigated changed with length, found temperate reef fishes have the greatest increases in length. Secondly, compared differences three metrics (critical speed, situ swimming, endurance) post‐flexion larvae, whilst considering morphology, higher capacity than non‐reef (pelagic demersal) which is likely due larger, more robust sizes. Thirdly, late‐stage tropical oceanographic better understand ecological relevance their high‐capacity swimming. high grow larger suggest pressures find specific, patchily distributed upon settle. Given current bias towards studies on percomorph at low latitudes, highlight there need research other lineages from latitudes. Overall, our findings provide valuable context morphological traits important dispersal recruitment processes selected teleost larvae.

Language: Английский

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Measurement of swimming ability in larval marine fishes: comparison of critical speed with in situ speed

Marine Ecology Progress Series, Journal Year: 2020, Volume and Issue: 650, P. 203 - 215

Published: Feb. 6, 2020

For much of their pelagic larval dispersal (PLD) stage, perciform fishes are able to directly influence by horizontal swimming, but it is unclear which means measuring swimming ability most appropriate for modelling and studying demographic genetic connectivity. Most studies use critical speed (Ucrit), a laboratory flume measure derived increasing flow until larvae can no longer maintain position. data on fish Ucrit, usually nearing the end PLD. Recognizing that forced inappropriate dispersal, researchers have used decreased Ucrit values, 50%, argued strongly correlated with more relevant measures. Here I examined suitability versus in situ (ISS), wherein measured divers following them ocean meter. Considerations require inclusion ontogeny. Swimming regressions size 10 species 8 families showed ISS not well correlated. The Ucrit:standard length (SL) slope was greater than ISS:SL 6 species, did differ other 4 species. No overall metric, e.g. X % = ISS, conversion ISS. Conversion straightforward. measures potential, what do ocean, whereas ocean. ontogeny less variable, dispersal. may be useful purposes.

Language: Английский

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Connectivity of coastal and neritic fish larvae to the deep waters

Limnology and Oceanography, Journal Year: 2021, Volume and Issue: 66(6), P. 2423 - 2441

Published: May 5, 2021

Abstract Four ichthyoplankton cruises and backward tracking experiments were conducted to study the connectivity of coastal neritic fish larvae over continental slope oceanic deep‐water region western Gulf Mexico. Distribution patterns larval abundance at stations showed higher presence during two cruises. Larval transport was simulated using outputs a data assimilation model that represented flow conditions each cruise. Higher abundances species agreed with offshore inferred from numerical seeding particles different spatial scales (stations vs. transects). Satellite images surface chlorophyll consistent circulation indicated by model, indicating filaments shelf waters transported toward transects abundances. Particle northwestern provinces Perdido, Tamaulipas, Texas main source propagules region, while northern Veracruz, Campeche, Yucatan, Louisiana, Mississippi‐Alabama contributed much less. The length intensity front limited cross‐shelf exchange some cruises, mesoscale anticyclonic cyclonic eddies advected others. agreement between distribution confirm models are valuable tool for examining potential dispersal pathways species, as long similar temporal ones used in this considered.

Language: Английский

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Individual variation in marine larval‐fish swimming speed and the emergence of dispersal kernels

Oikos, Journal Year: 2021, Volume and Issue: 2022(3)

Published: Dec. 8, 2021

Dispersal emerges as a consequence of how an individual's phenotype interacts with the environment. Not all dispersing individuals have same phenotype, and variation among can generate complex in distribution dispersal distances directions. While active locomotion performance is obvious candidate for its effects on are difficult to measure or predict, especially small organisms wind currents. Therefore, we analyzed larval swimming settlement coral‐reef fish larvae using high‐resolution biophysical model. The model is, date, only marine that has been statistically validated against genetic parentage estimates origin destination, incorporates empirically‐estimated behaviors their ontogeny. Larval swimming, combination depth, orientation navigation behaviors, actually reduced compared those passive larvae. Swimming had no consistent long distance dispersal, but increased spread locations. speed, contrast, did not consistently affect median distances, faster greater mean maximum than slower Finally, speeds probability settlement. Our analysis shows differentially affects multiple properties kernels. In doing so, it indicates selection could favor increase local retention, which may result longer by‐product trying locate habitat rather disperse distances.

Language: Английский

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Paternal care regulates the timing, synchrony and success of hatching in a coral reef fish

Proceedings of the Royal Society B Biological Sciences, Journal Year: 2022, Volume and Issue: 289(1982)

Published: Sept. 13, 2022

In oviparous species, the timing of hatching is a crucial decision, but for developing embryos, assessing cues that indicate optimal time to hatch challenging. species with pre-hatching parental care, parents can assess environmental conditions and induce their offspring hatch. We provide first documentation regulation in coral reef fish, demonstrating male neon gobies (Elacatinus colini) directly regulate by removing embryos from clutch spitting hatchlings into water column. All synchronized within 2 h sunrise, regardless when eggs were laid. Paternally incubated hatched later development, more synchronously, had higher success than artificially shaken vibrational stimulus or not stimulated. Artificially displayed substantial plasticity times (range: 80-224 post-fertilization), suggesting males could respond heterogeneity modifying offspring. Finally, paternally smaller yolk sacs larger propulsive areas paternal effects on hatchling phenotypes may influence larval dispersal fitness. These findings highlight complexity fish care behaviour have important, currently unstudied, consequences population dynamics.

Language: Английский

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An integrative investigation of sensory organ development and orientation behavior throughout the larval phase of a coral reef fish

Scientific Reports, Journal Year: 2021, Volume and Issue: 11(1)

Published: June 11, 2021

Abstract The dispersal of marine larvae determines the level connectivity among populations, influences population dynamics, and affects evolutionary processes. Patterns are influenced by both ocean currents larval behavior, yet role behavior remains poorly understood. Here we report first integrated study ontogeny multiple sensory systems orientation throughout phase a coral reef fish—the neon goby, Elacatinus lori. We document developmental morphology all major organs (lateral line, visual, auditory, olfactory, gustatory) together with development swimming behaviors observed in circular arena set adrift at sea. show that present hatch increase size (or number) complexity phase. Further, demonstrate most can orient as early 2 days post-hatch, they swim faster straighter develop. conclude abilities sufficiently developed to allow E. lori soon after hatch, suggesting may be common fishes. Finally, provide framework for testing alternative hypotheses strategies used fish larvae, laying foundation deeper understanding shaping patterns

Language: Английский

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Physical Connectivity Between the NE Atlantic Seamounts

Frontiers in Marine Science, Journal Year: 2020, Volume and Issue: 7

Published: May 5, 2020

Within the Portuguese Exclusive Economic Zone, Great Meteor and Madeira-Tore complexes are highly productive areas, which likely to be classified as Marine Protected Areas due their ecological vulnerability. This was main focus of BIOMETORE project framed on it, aim present study investigate physical connectivity between both seamount complexes. Using Hybrid Coordinate Ocean Model coupled with Connectivity Modeling System (a Lagrangian tool), a series experiments were conducted in order determine influence oceanographic phenomena governing area in: i) origin particles that reach each complex, ii) capacity capture retain incoming particles, (iii) them, well intra-connectivity within system. Due geographical location groups seamounts, Azores Current (AzC) its associated eddies identified transport pathways, being stronger at intermediate waters, decreasing depth. Notwithstanding, Madeira-tore mainly affected by AzC southward eastward branch, respectively, resulting non-significant two groups. Meanwhile, inter-connectivity seamounts slightly varied depth while increasing Madeira-Tore. In addition, Plateau, Irving Cruiser (PIC) from Gorringe Coral complex proved incorporate routes studied area. Although containing three smallest showed higher capturing per km2, highlighting 'Sticky Water Effect'. 'Seamount Effect' seems phenomenon responsible for greater retention self-recruitment abilities these seamounts. The presented results provide valuable information design an MPA preserve vulnerable habitats.

Language: Английский

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