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Achdiat M, Tan KA, Fujaya Y, Wang Y, Martin MB, Shu-Chien AC, Fazhan H, Waiho K. A comparative study on the antennae morphology and ultrastructure of three mud crab species of the genus Scylla from Setiu Wetlands, Terengganu, Malaysia. Microsc Res Tech 2024; 87:1443-1452. [PMID: 38404206 DOI: 10.1002/jemt.24524] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 12/27/2023] [Accepted: 02/10/2024] [Indexed: 02/27/2024]
Abstract
Crustaceans possess a range of sensory organs crucial in sensory perception, communication, and various ecological functions. Understanding morphological and functional differences in antennae among species could validate taxonomic differentiation and ecological adaptations. The antennae morphology and ultrastructure of mud crab species within the Scylla genus are poorly understood, and their role in ecological adaptation and species differentiation remains unexplored. This study aimed to describe and compare the morphology and ultrastructure of antennae in Scylla olivacea, Scylla tranquebarica, and Scylla paramamosain. Antennae were carefully excised from each crab and subjected to morphological, morphometric, and ultrastructural analysis. The study revealed that the antennae of Scylla species exhibit similar overall morphology, with a series of segments that tapered toward the upper end. All species possess non-branched single setae on the upper end of each segment. The number of antennae segments varied between species, with S. paramamosain having significantly more segments than S. olivacea. Additionally, the length and width of antenna segments differed among the species, with S. tranquebarica having a rougher antenna surface compared to S. olivacea and S. paramamosain. Our findings suggest that Scylla's antennae are distinct between species, especially in the number of segments and setae size. Such difference might be related to ecological adaptation. The role of antennae in sensory perception and social behavioral cues in mud crabs warrants further investigation. This study serves as a foundational reference for future research on the taxonomy, ecological adaptation, and sensory behaviors in the Scylla genus. RESEARCH HIGHLIGHTS: Variations and similarities in morphology and ultrastructure of three Scylla species can be found in the antennae. Scylla paramamosain had significantly higher number of segments than Scylla olivacea in morphology feature. The antennae surface of Scylla tranquebarica was rougher than that of S. olivacea and S. paramamosain. Antennae of three Scylla species possess non-branched single setae.
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Affiliation(s)
- Muhammad Achdiat
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity and Conservation, College of Marine Sciences, Beibu Gulf University, Guangxi, China
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, Terengganu, Malaysia
| | - Kian Ann Tan
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity and Conservation, College of Marine Sciences, Beibu Gulf University, Guangxi, China
| | - Yushinta Fujaya
- Faculty of Marine Science and Fisheries, Hasanuddin University, Makassar, Indonesia
| | - Youji Wang
- International Research Center for Marine Biosciences, Ministry of Science and Technology, Shanghai Ocean University, Shanghai, China
| | - Melissa Beata Martin
- Faculty of Science and Marine Environment, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
| | - Alexander Chong Shu-Chien
- Center for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang, Malaysia
- School of Biological Sciences, Universiti Sains Malaysia, Bayan Lepas, Penang, Malaysia
- Northland Aquaculture Centre, National Institute of Water and Atmospheric Research, Ruakaka, New Zealand
| | - Hanafiah Fazhan
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity and Conservation, College of Marine Sciences, Beibu Gulf University, Guangxi, China
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, Terengganu, Malaysia
- Center for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang, Malaysia
| | - Khor Waiho
- Guangxi Key Laboratory of Beibu Gulf Marine Biodiversity and Conservation, College of Marine Sciences, Beibu Gulf University, Guangxi, China
- Higher Institution Centre of Excellence (HICoE), Institute of Tropical Aquaculture and Fisheries, Universiti Malaysia Terengganu, Terengganu, Malaysia
- Center for Chemical Biology, Universiti Sains Malaysia, Bayan Lepas, Penang, Malaysia
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Kor G, Mengal K, Buřič M, Kozák P, Niksirat H. Comparative ultrastructure of the antennae and sensory hairs in six species of crayfish. PeerJ 2023; 11:e15006. [PMID: 36908819 PMCID: PMC10000303 DOI: 10.7717/peerj.15006] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Accepted: 02/14/2023] [Indexed: 03/09/2023] Open
Abstract
Background Antennae in crayfish are essential for gaining information about the local topography and localising food, chemicals, conspecifics or predator. There are still gaps in the research on the morphology of antennae in decapods compared to other arthropods. Methodology Biometrical and ultrastructural methods were applied using light and cryo-scanning electron microscopies to study the morphology of antennae in six different crayfish species, including marbled crayfish Procambarus virginalis, Mexican dwarf crayfish Cambarellus patzcuarensis, red swamp crayfish Procambarus clarkii, signal crayfish Pacifastacus leniusculus, common yabby Cherax destructor, and spiny-cheek crayfish Faxonius limosus to find their potential morphological differences. Results Significant differences in the antenna length, length and width of each segment to carapace length ratios, and the number of segments were found in the six crayfish species. The ultrastructure revealed differences in the distribution of sensory hairs on the antenna and the morphology of the antennal surface. Conclusions The different morphology of antennae might reflect adaptation to the conditions of their specific habitats. In addition, results showed that a combination of differences in the morphological features and biometrical measurements of antennae could be used for the distinguishment of different studied crayfish species.
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Affiliation(s)
- Golara Kor
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Vodňany, Czech Republic
| | - Kifayatullah Mengal
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Vodňany, Czech Republic
| | - Miloš Buřič
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Vodňany, Czech Republic
| | - Pavel Kozák
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Vodňany, Czech Republic
| | - Hamid Niksirat
- Faculty of Fisheries and Protection of Waters, South Bohemian Research Centre of Aquaculture and Biodiversity of Hydrocenoses, University of South Bohemia in České Budějovice, Vodňany, Czech Republic
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Hollmann G, da Silva PGC, Linden R, Allodi S. Cell proliferation in the central nervous system of an adult semiterrestrial crab. Cell Tissue Res 2021; 384:73-85. [PMID: 33599819 DOI: 10.1007/s00441-021-03413-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2020] [Accepted: 01/01/2021] [Indexed: 10/22/2022]
Abstract
Neurogenesis occurs in adults of most organisms, both vertebrates and invertebrates. In semiterrestrial crabs of the infraorder Brachyura, the deutocerebrum, where neurogenesis occurs, processes the olfactory sensory information from the antennae. The deutocerebrum is composed of a pair of olfactory lobes associated with cell clusters 9 and 10 (Cl 9 and Cl 10), containing proliferating cells. Because the location of the neurogenic niche in brachyuran semiterrestrial crabs has not been defined, here we describe a neurogenic niche in the central olfactory system of the crab Ucides cordatus and report two types of glial cells in the deutocerebrum, based on different markers. Serotonin (5-hydroxytryptamine) labeling was used to reveal neuroanatomical aspects of the central olfactory system and the neurogenic niche. The results showed a zone of proliferating neural cells within Cl 10, which also contains III beta-tubulin (Tuj1)+ immature neurons, associated with a structure that has characteristics of the neurogenic niche. For the first time, using two glial markers, glial fibrillary acidic protein (GFAP) and glutamine synthetase (GS), we identified two types of astrocyte-like cells in different regions of the deutocerebrum. This study adds to the understanding of neurogenesis in a brachyuran semiterrestrial crustacean and encourages comparative studies between crustaceans and vertebrates, including mammals, based on shared aspects of both mechanisms of neurogenesis and regenerative potentials.
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Affiliation(s)
- Gabriela Hollmann
- Programa de Pós-Graduação em Ciências Biológicas - Fisiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro-UFRJ, Rio de Janeiro, RJ, 21941-590, Brazil. .,Programa de Pós-Graduação em Biologia Celular e do Desenvolvimento, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina-UFSC, João Pio Duarte Silva, 241, Florianópolis, SC, 88037-000, Brazil.
| | - Paula Grazielle Chaves da Silva
- Programa de Pós-Graduação em Ciências Biológicas - Biofísica , Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro-UFRJ , 21941-590, Rio de Janeiro, Brazil
| | - Rafael Linden
- Programa de Pós-Graduação em Ciências Biológicas - Fisiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro-UFRJ, Rio de Janeiro, RJ, 21941-590, Brazil.,Programa de Pós-Graduação em Ciências Biológicas - Biofísica , Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro-UFRJ , 21941-590, Rio de Janeiro, Brazil
| | - Silvana Allodi
- Programa de Pós-Graduação em Ciências Biológicas - Fisiologia, Instituto de Biofísica Carlos Chagas Filho, Universidade Federal do Rio de Janeiro-UFRJ, Rio de Janeiro, RJ, 21941-590, Brazil.,Programa de Pós-Graduação em Ciências Biológicas - Biofísica , Instituto de Biofísica Carlos Chagas Filho Universidade Federal do Rio de Janeiro-UFRJ , 21941-590, Rio de Janeiro, Brazil
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Waldrop LD, He Y, Khatri S. What Can Computational Modeling Tell Us about the Diversity of Odor-Capture Structures in the Pancrustacea? J Chem Ecol 2018; 44:1084-1100. [PMID: 30242545 DOI: 10.1007/s10886-018-1017-2] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2018] [Revised: 09/03/2018] [Accepted: 09/10/2018] [Indexed: 01/08/2023]
Abstract
A major transition in the history of the Pancrustacea was the invasion of several lineages of these animals onto land. We investigated the functional performance of odor-capture organs, antennae with olfactory sensilla arrays, through the use of a computational model of advection and diffusion of odorants to olfactory sensilla while varying three parameters thought to be important to odor capture (Reynolds number, gap-width-to-sensillum-diameter ratio, and angle of the sensilla array with respect to oncoming flow). We also performed a sensitivity analysis on these parameters using uncertainty quantification to analyze their relative contributions to odor-capture performance. The results of this analysis indicate that odor capture in water and in air are fundamentally different. Odor capture in water and leakiness of the array are highly sensitive to Reynolds number and moderately sensitive to angle, whereas odor capture in air is highly sensitive to gap widths between sensilla and moderately sensitive to angle. Leakiness is not a good predictor of odor capture in air, likely due to the relative importance of diffusion to odor transport in air compared to water. We also used the sensitivity analysis to make predictions about morphological and kinematic diversity in extant groups of aquatic and terrestrial crustaceans. Aquatic crustaceans will likely exhibit denser arrays and induce flow within the arrays, whereas terrestrial crustaceans will rely on more sparse arrays with wider gaps and little-to-no animal-induced currents.
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Affiliation(s)
- Lindsay D Waldrop
- Depatment of Biology, New Mexico Institute of Mining and Technology Socorro, Socorro, NM, 87801, USA.
| | - Yanyan He
- Depatment of Mathematics, New Mexico Institute of Mining and Technology Socorro, Socorro, NM, 87801, USA
| | - Shilpa Khatri
- Applied Mathematics Unit School of Natural Sciences, University of California, Merced, CA, 95343, USA
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Waldrop LD, Miller LA, Khatri S. A tale of two antennules: the performance of crab odour-capture organs in air and water. J R Soc Interface 2016; 13:20160615. [PMID: 27974576 PMCID: PMC5221524 DOI: 10.1098/rsif.2016.0615] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2016] [Accepted: 11/17/2016] [Indexed: 01/06/2023] Open
Abstract
Odour capture is an important part of olfaction, where dissolved chemical cues (odours) are brought into contact with chemosensory structures. Antennule flicking by marine crabs is an example of discrete odour capture (sniffing) where an array of chemosensory hairs is waved through the water to create a flow-no flow pattern based on a narrow range of speeds, diameters of and spacings between hairs. Changing the speed of movement and spacing of hairs at this scale to manipulate flow represents a complicated fluid dynamics problem. In this study, we use numerical simulation of the advection and diffusion of a chemical gradient to reveal how morphological differences of the hair arrays affect odour capture. Specifically, we simulate odour capture by a marine crab (Callinectes sapidus) and a terrestrial crab (Coenobita rugosus) in both air and water to compare performance. We find that the antennule morphologies of each species are adaptions to capturing odours in their native habitats. Sniffing is an important part of odour capture for marine crabs in water where the diffusivity of odorant molecules is low and flow through the array is necessary. On the other hand, flow within the hair array diminishes odour-capture performance in air where diffusivities are high. This study highlights some of the adaptations necessary to transition from water to air.
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Affiliation(s)
- Lindsay D Waldrop
- Applied Mathematics Unit, School of Natural Sciences, University of California, Merced, CA 95343, USA
- Department of Biology, New Mexico Institute of Mining and Technology, Socorro NM 87081, USA
| | - Laura A Miller
- Department of Biology, University of North Carolina, Chapel Hill, NC 27599, USA
- Department of Mathematics, University of North Carolina, Chapel Hill, NC 27599, USA
| | - Shilpa Khatri
- Applied Mathematics Unit, School of Natural Sciences, University of California, Merced, CA 95343, USA
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Gaston KA, Lauer TE. Morphometric variation in bluegill Lepomis macrochirus and green sunfish Lepomis cyanellus in lentic and lotic systems. JOURNAL OF FISH BIOLOGY 2015; 86:317-332. [PMID: 25425144 DOI: 10.1111/jfb.12581] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2013] [Accepted: 10/16/2014] [Indexed: 06/04/2023]
Abstract
Bluegill Lepomis macrochirus and green sunfish Lepomis cyanellus were examined using geometric morphometrics to evaluate the variation in morphology between fishes that reside in lentic (e.g. lakes) and lotic (e.g. streams) ecosystems. Live fishes were collected from reservoirs and rivers in central Indiana, while additional fishes were sampled from museum collections at Ball State University and the Illinois Natural History Survey. Male and female L. macrochirus and female L. cyanellus from lentic systems display a deeper body than those from lotic systems, while no differences were found in male L. cyanellus morphometry. A deeper body promotes greater manoeuverability, typically desirable in lentic systems. In contrast, the more streamlined body of the fishes found in lotic systems reduces drag as it contends with flowing water, ultimately maximizing energy efficiency. The absence of morphological differences, such as those found in male L. cyanellus, may be caused by fish occupying both lentic and lotic systems, from the population not having been present in the body of water long enough to display any adaptations, or from a lack of statistical power caused by the small sample size.
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Affiliation(s)
- K A Gaston
- Department of Biology, Cooper Life Science Building, CL 121, Ball State University, Muncie, IN, 47306, U.S.A
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