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Your search keyword '"Fitzgibbon, Quinn P."' showing total 248 results
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248 results on '"Fitzgibbon, Quinn P."'

23. The Chinese mitten crab genome provides insights into adaptive plasticity and developmental regulation

Author

Cui, Zhaoxia, Liu, Yuan, Yuan, Jianbo, Zhang, Xiaojun, Ventura, Tomer, Ma, Ka Yan, Sun, Shuai, Song, Chengwen, Zhan, Dongliang, Yang, Yanan, Liu, Hourong, Fan, Guangyi, Cai, Qingle, Du, Jing, Qin, Jing, Shi, Chengcheng, Hao, Shijie, Fitzgibbon, Quinn P., Smith, Gregory G., Xiang, Jianhai, Chan, Tin-Yam, Hui, Min, Bao, Chenchang, Li, Fuhua, and Chu, Ka Hou

Published
2021
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36. Effect of Feed Texture and Dimensions, on Feed Waste Type and Feeding Efficiency in Juvenile Sagmariasus verreauxi.

Author

Kropielnicka-Kruk, Katarzyna, Fitzgibbon, Quinn P., Codabaccus, Mohamed B., Trotter, Andrew J., Carter, Chris G., and Smith, Gregory G.

Subjects
*SPINY lobsters, *ANIMAL feeds, *WASTE treatment, *FISH feeds, *LOBSTERS
Abstract

The "messy" feeding behaviour of spiny lobsters remains an obstacle for formulated feed development. This study examined the relationship between feeding efficiency and feed waste by juvenile spiny lobster, Sagmariasus verreauxi, fed different formulated pellet diameters or lengths across two separate experiments. Feed texture (hard and dry pellet, HDP; soft and moist pellet, SMP) was also examined. Juvenile lobsters were fed experimental feeds at 0.5% BW daily over a 6 h duration. The resulting feed waste was categorised as either feeding-related waste (FRW) or non-feeding-related waste (NFRW). For all feed types, the FRW increased with increasing pellet diameter and pellet length. The increase in FRW corresponded with a decrease in NFRW, particularly for HDP, resulting in no difference in total feed waste in any treatment investigated. Thus, even with improved feeding efficiency with small feed dimensions, feed intake was not improved. Feed leaching rate decreased with increasing pellet size, suggesting a more rapid decline in feed attractiveness for smaller pellets. This finding indicates that currently a counteractive interaction exists between pellet size and feed attractiveness and suggests improving attractiveness would further enhance feeding. Future research should aim at optimising feed dimensions simultaneously to support efficient feeding whilst enhancing attraction/gustatory stimulations. [ABSTRACT FROM AUTHOR]

Published
2023
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48. Transcriptomic Analysis and Time to Hatch Visual Prediction of Embryo Development in the Ornate Spiny Lobster (Panulirus ornatus)

Author

Lewis, Courtney L., Fitzgibbon, Quinn P., Smith, Gregory G., Elizur, Abigail, and Ventura, Tomer

Subjects
Global and Planetary Change, Ocean Engineering, Aquatic Science, Oceanography, Water Science and Technology
Abstract

The ability to conduct closed life-cycle culture of tropical spiny lobsters, Panulirus ornatus, at the Institute for Marine and Antarctic Studies (IMAS) provides a unique opportunity to investigate specific developmental stages during embryogenesis. The production of closed life-cycle lobsters provides access to embryos at defined time points, yet physical staging is challenging due to their small size and environmental factors impacting their development. A transcriptome comprising 11 distinct stages across the 30-day P. ornatus embryonal development period allowed the establishment of the most detailed transcriptomic library of embryogenesis across decapods. A series of key genes across the 11 stages of embryonal development were characterized. The expression of neuropeptides was reported across P. ornatus embryos, suggesting they are primarily active during the later stages of embryogenesis as the nervous system develops and the animal prepares to hatch. Gastrula-specific genes, nanos and brachyury, presented an expression profile indicating gastrulation occurs early in embryogenesis. In addition to the molecular tools used to characterize embryo development, certain developmental characteristics, such as eye spot development, provide a measurable indicator that can be visualised. Hatch prediction models based on visual characteristics were shown to be an accurate method to predict the timing of the hatch for P. ornatus embryos kept at 26°C. The combination of morphological and visual measures with transcriptomics can be used to further define and establish the groundwork for future characterisation and staging of P. ornatus embryogenesis.

Published
2022

49. Metabolic plasticity improves lobster��s resilience to ocean warming but not to climate-driven novel species interactions - Supplementary Files

Author

Oellermann, Michael, Fitzgibbon, Quinn P., Twiname, Samantha, and Pecl, Gretta T

Abstract

Supplementary files for the manuscript titled " Metabolic plasticity improves lobster��s resilience to ocean warming but not to climate-driven novel species interactions". The files comprise:Supplementary Figure S1: Oxygen consumption of moulting lobster Supplementary Figure S2: Schematic illustration of experimental design Supplementary Table S1: Raw data table for all individuals used in this study. Supplementary File S1: Python script to record total escapes and escape speed Supplementary Files S2: R Markdown files for data processing and statistical analysis. Supplementary Files S3: R Markdown file for weight and sex distribution of animals. Supplementary Table S2: Summary of the impact of main effects on various metabolic performance and escape parameters of Southern- and Eastern rock lobster using linear mixed effect models.Supplementary Table S3: Summary of the impact of main effects on standard metabolic rate of Southern- and Eastern rock lobster using general linear mixed effect models.

Published
2022
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