A comprehensive biochemical characterization of settlement stage leptocephalus larvae of bonefish (<scp><i>Albula vulpes</i></scp>)

Uribe, Victoria; Wills, Paul S.; Shenker, Jonathan M.; Adams, Aaron J.; Mejri, Sahar

doi:10.1111/jfb.14846

Cited by 3 publications

(2 citation statements)

References 29 publications

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“…However, when there is a substantial depletion of endogenous nutrients, PLs are utilized to a greater extent for energy purposes. Storage lipids can be further categorized into short-term and long-term energy storage lipids, where short-term energy storage lipids like TAG are metabolized before long-term energy storage lipids such as WE-SE [40,41]. In this study, a significant decrease in TAG content was observed during the development of pearl gentian grouper yolk-sac larvae.…”

Section: Discussionmentioning

confidence: 59%

A Comprehensive Biochemical Characterization of Hybrid Grouper Larvae (Epinephelus fuscoguttatus♀ × Epinephelus lanceolatus♂) during Yolk-Sac Larval Development

Gao,

Cao,

Chen

et al. 2023

Animals

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To investigate the shifts in the biochemical composition of hybrid grouper during the early larval stages, we collected samples at various developmental milestones, spanning from newly hatched larvae (stage I) to 4 days after hatching (stage V). Our findings revealed several notable trends: (1) The total length of hybrid grouper larvae exhibited a significant increase as the yolk-sac absorption progressed from stage I to V. Concurrently, there was a marked decrease in yolk volume and oil volume during the transition from stage I to III, followed by a gradual decline from stage III to V. (2) Dry weight and total lipid content displayed a rapid reduction throughout the larval development period, while the total protein content exhibited a declining trend. (3) The concentrations of triacylglycerols and wax esters/steryl esters decreased considerably, particularly at stage V. However, no differences were observed among the contents of ketones, hydrocarbons, and sterols. (4) As yolk-sac larvae developed from stage I to V, a significant reduction was observed in the levels of essential amino acids (EAAs), such as leucine, valine, isoleucine, phenylalanine, glycine, alanine, serine, proline, and tyrosine. This trend was also observed for non-EAAs and total amino acids, with fluctuations in the content of other amino acids. (5) There was a significant decrease in the levels of specific fatty acids, including C16:0, saturated fatty acids (SFAs), monounsaturated fatty acids (MUFAs), C18:0, 18:1n-9, and C20:4n-6. In contrast, the contents of C22:6n-3, polyunsaturated fatty acids (PUFAs), n-3 PUFA, n-6 PUFA, and the combination of docosahexaenoic acid (DHA) + eicosapentaenoic acid (EPA), as well as the DHA/EPA ratio, remained stable from stage I to III but declined thereafter. (6) During the early developmental stages, the utilization sequence of fatty acids followed a pattern of prioritizing SFAs, followed by MUFAs, n-6 PUFA, and n-3 PUFA. These findings provide further insights into the nutritional priorities of hybrid grouper larvae during their early development, with a particular emphasis on lipids and fatty acids as vital energy sources. Additionally, our results highlight variations in the efficiency of utilization among different types of fatty acids, while protein utilization remained relatively stable, characterized by the selective consumption of amino acid content.

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Section: Discussionmentioning

confidence: 59%

A Comprehensive Biochemical Characterization of Hybrid Grouper Larvae (Epinephelus fuscoguttatus♀ × Epinephelus lanceolatus♂) during Yolk-Sac Larval Development

Gao,

Cao,

Chen

et al. 2023

Animals

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“…The strong association of the deep chlorophyll maximum and the thermocline within the eastern Caribbean exemplifies the nutritional benefits of thermocline associations for larval fish within The Bahamas [ 122 ]. The buoyancy of bonefish eggs and larvae [ 123 , 124 ] are most likely to have imparted the consistent relationship between the thermocline and mean dispersal depth. An instantaneous buoyancy rate of 8.5 m·d -1 at 0 h post-hatch (25 h post-fertilization) was calculated using the standard Stokes’ Law following the methods in McDonnell and Buesseler [ 125 ] with a larval density of 1.02 × 10 −5 kg·m -3 , head diameter of 2 × 10 −4 m, a length of 0.005 m [ 123 ], a dynamic viscosity of 0.959 kg·m -1·s [ 126 ], and a water density of 1024.4 kg·m -3 .…”

Section: Discussionmentioning

confidence: 99%

Biophysical larval dispersal models of observed bonefish (Albula vulpes) spawning events in Abaco, The Bahamas: An assessment of population connectivity and ocean dynamics

Lombardo

Chérubin²,

Adams³

et al. 2022

PLoS ONE

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Biophysical models are a powerful tool for assessing population connectivity of marine organisms that broadcast spawn. Albula vulpes is a species of bonefish that is an economically and culturally important sportfish found throughout the Caribbean and that exhibits genetic connectivity among geographically distant populations. We created ontogenetically relevant biophysical models for bonefish larval dispersal based upon multiple observed spawning events in Abaco, The Bahamas in 2013, 2018, and 2019. Biological parameterizations were informed through active acoustic telemetry, CTD casts, captive larval rearing, and field collections of related albulids and anguillids. Ocean conditions were derived from the Regional Navy Coastal Ocean Model American Seas dataset. Each spawning event was simulated 100 times using the program Ichthyop. Ten-thousand particles were released at observed and putative spawning locations and were allowed to disperse for the full 71-day pelagic larval duration for A. vulpes. Settlement densities in defined settlement zones were assessed along with interactions with oceanographic features. The prevailing Northern dispersal paradigm exhibited strong connectivity with Grand Bahama, the Berry Islands, Andros, and self-recruitment to lower and upper Abaco. Ephemeral gyres and flow direction within Northwest and Northeast Providence Channels were shown to have important roles in larval retention to the Bahamian Archipelago. Larval development environments for larvae settling upon different islands showed few differences and dispersal was closely associated with the thermocline. Settlement patterns informed the suggestion for expansion of conservation parks in Grand Bahama, Abaco, and Andros, and the creation of a parks in Eleuthera and the Berry Islands to protect fisheries. Further observation of spawning events and the creation of biophysical models will help to maximize protection for bonefish spawning locations and nursery habitat, and may help to predict year-class strength for bonefish stocks throughout the Greater Caribbean.

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Assessing physical qualities and fatty acid profiles of early-stage bonefish (Albula goreensis) leptocephalus larvae reared in captivity to better understand early life history traits and inform conservation methods

et al. 2023

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A comprehensive biochemical characterization of settlement stage leptocephalus larvae of bonefish (Albula vulpes)

Cited by 3 publications

References 29 publications

A Comprehensive Biochemical Characterization of Hybrid Grouper Larvae (Epinephelus fuscoguttatus♀ × Epinephelus lanceolatus♂) during Yolk-Sac Larval Development

A Comprehensive Biochemical Characterization of Hybrid Grouper Larvae (Epinephelus fuscoguttatus♀ × Epinephelus lanceolatus♂) during Yolk-Sac Larval Development

Biophysical larval dispersal models of observed bonefish (Albula vulpes) spawning events in Abaco, The Bahamas: An assessment of population connectivity and ocean dynamics

Assessing physical qualities and fatty acid profiles of early-stage bonefish (Albula goreensis) leptocephalus larvae reared in captivity to better understand early life history traits and inform conservation methods

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