Acta Zoologica最新文献

Immune system of fish with special reference to estrogenic immune regulation: A review 鱼类的免疫系统，特别是雌激素免疫调节：综述

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-09-06 DOI: 10.1111/azo.12519

Ragini Sinha, Dipak Kumar Mandal

{"title":"Immune system of fish with special reference to estrogenic immune regulation: A review","authors":"Ragini Sinha, Dipak Kumar Mandal","doi":"10.1111/azo.12519","DOIUrl":"https://doi.org/10.1111/azo.12519","url":null,"abstract":"Fish, first jawed vertebrate group appearing in evolution, have immune system similar to those of mammals. These early animals' innate and adaptive immune systems are completely developed, having head kidney and thymus as primary, spleen and mucosa associated lymphoid tissue as secondary immune organs. The adaptive immunity performs key role in defence against recurring infections and elimination of fish pathogens with the help of its memory cells, T‐cell‐receptors and immunoglobulins. Epidermal secretions including antibacterial peptides, lysozymes, lectins, complement and C‐reactive proteins which function in disruption of antigens, phagocytosis, inflammatory response and mending of tissue injury play a significant role as elements of fish immune system. Fish, however, have greater innate immunity than humans do. Estrogens play crucial role in immunomodulation through nuclear oestrogen receptors, which are found in majority of immune cells and lymphoid organs in fish. There is mounting proof that xenoestrogens, that can attach as agonists to oestrogen receptors, pose significant ecotoxicological risk by disrupting the defence mechanism in fish. Though less potent than natural oestrogen, they can bioaccumulate to finally reach a substantial dose. This review's objective is to give an overview of the fish defence system, its estrogenic regulation and estrogenic‐endocrine disruption.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-09-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142215138","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Otolith‐based species identification in the killifish Aphaniops (Teleostei; Cyprinodontiformes; Aphaniidae) using both morphometry and wavelet analysis 利用形态计量学和小波分析法，基于耳石鉴定鳉鱼Aphaniops（腕足动物；鲤形目；Aphaniidae）的物种

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-09-05 DOI: 10.1111/azo.12518

Eleni A. Charmpila, Azad Teimori, Bettina Reichenbacher

{"title":"Otolith‐based species identification in the killifish Aphaniops (Teleostei; Cyprinodontiformes; Aphaniidae) using both morphometry and wavelet analysis","authors":"Eleni A. Charmpila, Azad Teimori, Bettina Reichenbacher","doi":"10.1111/azo.12518","DOIUrl":"https://doi.org/10.1111/azo.12518","url":null,"abstract":"The killifish genus Aphaniops consists of nine species distributed in Eastern Africa and the Middle East. However, distinguishing these species from each other based on morphological traits is challenging. Here we investigate the utility of otoliths (sagittae) in distinguishing between A. dispar, A. ginaonis, A. hormuzensis, A. kruppi and A. stoliczkanus. Our approach is based on otoliths from 89 specimens and involves (1) otolith morphometrics, following prior recommendations, (2) shape analysis of otolith contours based on discrete wavelet transformation—a novel method in killifish otolith research—and comparative statistical analyses. Both methods reveal significant interspecific variation in the otolith regions of the rostrum, antirostrum and excisura. While method (1) effectively discriminates most species, method (2) struggles to differentiate A. hormuzensis, A. stoliczkanus and A. kruppi. Additionally, both methods encounter challenges in correctly classifying A. hormuzensis due to the high otolith variability of this species in our sample. Possible factors accounting for their variability are environmental fluctuations at the sampled hot sulphuric spring (Khurgo) and potential introgressive hybridization. We conclude that otolith morphometry is a valuable tool for Aphaniops species identification. Furthermore, we found that the distinctiveness of species‐specific otolith traits increases with the divergence age of the species.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-09-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142215139","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Not all heroes wear shells: New data on the spicules' morphology in acochlidimorph mollusc 并非所有英雄都有贝壳：关于无脊椎软体动物脊柱形态的新数据

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-08-13 DOI: 10.1111/azo.12517

Anna L. Mikhlina, Ekaterina D. Nikitenko, Elena V. Vortsepneva

{"title":"Not all heroes wear shells: New data on the spicules' morphology in acochlidimorph mollusc","authors":"Anna L. Mikhlina, Ekaterina D. Nikitenko, Elena V. Vortsepneva","doi":"10.1111/azo.12517","DOIUrl":"https://doi.org/10.1111/azo.12517","url":null,"abstract":"Calcareous skeletal structures are common among different invertebrate groups, including Porifera, Cnidaria, Platyhelminthes, Mollusca, and Echinodermata. They appear externally as shells, plates, or scales, or internally as subepidermal spicules. Although typically formed outside of the cells, in one class of gastropod molluscs, the Heterobranchia, subepidermal and intracellular spicules are found—a rare case, at least for the molluscs. This type of spicules is present in several phylogenetically distant groups of heterobranch molluscs (Rhodopemorpha, Acochlidimorpha, and Nudibranchia), each different in terms of morphology and autecology. This raises questions about the origin and homology of subepidermal spicules in heterobranch molluscs. To answer these questions, understanding the process of spicule formation is crucial. This is impeded by insufficient data on the fine structure of the subepidermal spicules and adjacent epithelia. To address this problem, we carried out a comprehensive morphological study of subepidermal spicules and the body wall in one species of Acochlidimorpha. We revealed variations in the cellular composition of the epidermis, musculature organization, and spicules' arrangement, which most likely reflect the different functional roles of the spicule complex within Heterobranchia representatives. However, the obtained data are insufficient to answer the question of the origin of spicules and their homology within Heterobranchia.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-08-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142215143","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development, differentiation and toughness in lizard claws derive from two types of cysteine–glycine‐rich proteins 蜥蜴爪子的发育、分化和韧性源自两种富含半胱氨酸-甘氨酸的蛋白质

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-08-08 DOI: 10.1111/azo.12516

Lorenzo Alibardi

{"title":"Development, differentiation and toughness in lizard claws derive from two types of cysteine–glycine‐rich proteins","authors":"Lorenzo Alibardi","doi":"10.1111/azo.12516","DOIUrl":"https://doi.org/10.1111/azo.12516","url":null,"abstract":"The present study reports the formation of claws in lizards and their cornification. From a flat epidermis with lose mesenchyme, the skin forms undulations that become symmetric domes and later asymmetric for the elongation of their proximal part that gives rise to the outer scale surface. At the tip of digits claws develop in association with a mesenchyme that surrounds the cartilage of the last phalange. Beta‐cells of claws appear 2–3 embryonic stages before those of scales formed in other body regions, including digital scales. The epidermis of the developing claw initially forms 3–4 embryonic layers under which elongated beta‐cells accumulate long bundles of corneous material, immunopositive for CBPs. Claw beta‐keratinocytes incorporate tritiated proline and accumulate numerous, oriented corneous bundles that rapidly occupy the entire cell. The bundles are electron‐dense under transmission electron microscopy, suggesting that, in association to CBPs, other proteins are synthesized and increase the mechanical resistance of claws. Immunolabelling for cysteine‐rich IFKs, HA and HB, shows that these keratins co‐localize with CBPs only in claws but are low to absent in digital scales and adhesive setae. This indicates that the hardness of claws mainly depends from the association between these different proteins rich in glycine and cysteine.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141969130","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Herpetofauna diversity from late Holocene wetlands of northeastern Argentina 阿根廷东北部全新世晚期湿地的爬行动物多样性

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-07-18 DOI: 10.1111/azo.12513

Guillermo Escobar, Víctor Zaracho, Pedro Cuaranta, Carolina Barboza, Carolina Píccoli, Carlos A. Luna, Oscar F. Gallego, Mateo D. Monferran

{"title":"Herpetofauna diversity from late Holocene wetlands of northeastern Argentina","authors":"Guillermo Escobar, Víctor Zaracho, Pedro Cuaranta, Carolina Barboza, Carolina Píccoli, Carlos A. Luna, Oscar F. Gallego, Mateo D. Monferran","doi":"10.1111/azo.12513","DOIUrl":"https://doi.org/10.1111/azo.12513","url":null,"abstract":"The palaeofauna of the Quaternary is mostly known from the mammals' record, while the herpetofauna is less represented. In the same way, in northeastern Argentina reptile fossils records are scarce, usually represented by preliminary communications. This paper focuses on the study of herpetofauna remains from the Isla El Disparito archaeological site. The faunal materials collected at the site revealed an increase in taxonomic diversity related to the Quaternary herpetofauna in the IED site, with over 50% of the bone remains represented by anurans and at least six recognized squamates taxa. The purpose of this study is to properly identify these new records of herpetofauna remains from northeastern Argentina during the Holocene as well as to provide a dichotomous key of postcranial remains for identifying extant squamates taxa in other Quaternary sites from Argentina. The identified squamate assemblage includes the lizard Ophiodes sp., the snake families Typhlopidae, Dipsadidae, Viperidae and undetermined colubroids, along with anuran bone remains (Anura indet. and ?Hylidae). Additionally, the findings contribute to a better understanding of the herpetological assemblage in Argentina, providing insights into the composition of South American squamates during the Quaternary.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141746474","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A comparative study of fat body at different developmental stages in Bombyx mori (L.): Histological and ultrastructural aspects 对不同发育阶段的桑蚕（Bombyx mori (L.)）脂肪体的比较研究：组织学和超微结构方面

IF 1.1 4区生物学

Acta Zoologica Pub Date : 2024-07-14 DOI: 10.1111/azo.12515

A. Pak, Gamze Turgay-İzzetoğlu, Mehmet Salih Yıkılmaz, S. İzzetoğlu

{"title":"A comparative study of fat body at different developmental stages in Bombyx mori (L.): Histological and ultrastructural aspects","authors":"A. Pak, Gamze Turgay-İzzetoğlu, Mehmet Salih Yıkılmaz, S. İzzetoğlu","doi":"10.1111/azo.12515","DOIUrl":"https://doi.org/10.1111/azo.12515","url":null,"abstract":"The fat body, originating from mesodermal tissue of coelomic cavities during embryogenesis, can be found throughout the insect's body. In some insects, the fat body has two types (peripheral and perivisceral fat bodies) according to its location. In the fat body, trophocytes are known to be the basic cell type. Other fat body cells differentiating from the trophocytes are urocytes, mycetocytes, chromatocytes and haemoglobin cells. The study aimed to demonstrate the general structure and cell types of the fat body during the postembryonic developmental stages of Bombyx mori (L.). With Haematoxylin–Eosin staining, there is a single type of fat body throughout the larval stages but during Pp and P0 stages it consists of perivisceral and peripheral fat bodies. We also observed that the compact structure of the fat body at the beginning of the larval stage began to loosen as it transformed into the pupal stage. In the adult stage, it was reorganized during the metamorphosis and it didn't show both fat bodies distinction. At this stage, the fat body appeared in a loose, lace‐like structure. We determined that B. mori fat body only consists of trophocytes and also among them; the fat body associated cells, oenocytes are detected.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.1,"publicationDate":"2024-07-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141649797","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Life history of the snapping shrimp Synalpheus ubatuba: Morphological description of the first larval stage reared in laboratory 乌巴图巴鳄的生活史：实验室饲养的第一阶段幼体的形态描述

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-07-12 DOI: 10.1111/azo.12514

Rafael Carvalho Santos, Jeniffer Natalia Teles, Fernando Luis Mantelatto, Rogerio Caetano Costa

{"title":"Life history of the snapping shrimp Synalpheus ubatuba: Morphological description of the first larval stage reared in laboratory","authors":"Rafael Carvalho Santos, Jeniffer Natalia Teles, Fernando Luis Mantelatto, Rogerio Caetano Costa","doi":"10.1111/azo.12514","DOIUrl":"https://doi.org/10.1111/azo.12514","url":null,"abstract":"Synalpheus ubatuba zoea I was described by assessing laboratory‐hatched larvae. It was compared to other Synalpheus descriptions available in the literature. Partial sequences of parental female's 16S rRNA were analysed and it provided additional evidence for species identification. The first S. ubatuba zoea can be identified by a set of morphological characteristics, namely: antennal scale 4‐articled; basial endite of the maxillule with 3 stout spines + 1 spine; coxal endite of the maxilla with 3 plumose setae and 1 simple seta; basis of the first maxilliped with 4 spines and 2 simple setae; endopod of the third maxilliped with 5‐articled with 0, 0, 0, 2 (1 serrate + 1 simple) setae, 4 simple setae. There was significant larval morphology difference between these characteristics in comparison to other species in the Brevicarpus group (S. brevicarpus and S. minus) which S. ubatuba belongs to. Despite systematic and ecological information provided in the original S. ubatuba description, the present study is the first to focus on the particular features of this species' larval morphology. Evidence of the herein provided larval morphology traits in addition to potential comparison to congeners presenting well‐known larval descriptions, supported the identification of newly discovered species.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141611233","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Epidermal cell proliferation and differentiation in the beak of tadpoles of Rana dalmatina 达尔马提那蛙喙表皮细胞的增殖和分化

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-07-08 DOI: 10.1111/azo.12512

Lorenzo Alibardi

{"title":"Epidermal cell proliferation and differentiation in the beak of tadpoles of Rana dalmatina","authors":"Lorenzo Alibardi","doi":"10.1111/azo.12512","DOIUrl":"https://doi.org/10.1111/azo.12512","url":null,"abstract":"Epidermal cell proliferation and differentiation during formation of the beak in tadpoles of Rana dalmatina. Acta Zoologica (Stockolm). The beak utilized in tadpoles of R. dalmatina for crushing vegetables is formed of cornified cell layers. A row of large wedge‐like cells forms a central pile that produces the sharp corneous lamina of the beak. The labial and oral surfaces of the beaks also accumulate corneous material during proliferation and differentiation of keratinocytes from the epidermis to form a sheath around the central corneous cells. Corneocytes are shed during the growth of tadpoles. Electron microscopy reveals that keratin and mucus granules are main components of these keratinocytes. Electron‐dense organelles of unknown composition and with inside lamellae are also present. Using immunohistochemistry after post‐injection of 5BrdU, a marker of cell proliferation, the main timing of formation of the beak has been determined. After 2–5 h from injection, labelled nuclei of keratinocytes are seen in the basal layer, and sparse suprabasal labelled nuclei are detected after 5 h. Labelled keratinocytes are seen in suprabasal layers at 2 days post‐injection. At 5 and 6 days labelled keratinocytes are present in central corneous cells and in the lateral shell of corneocytes forming the labial and oral beak sides. Shedding a complete stratum corneum likely takes more days, but this depends on feeding usage.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141574434","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Insights into tick dynamics and anaplasmosis in ruminants: A microscopic and molecular perspective 对反刍动物中蜱虫动态和无形体病的见解：微观和分子视角

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-07-03 DOI: 10.1111/azo.12510

Ayesha Malik, Kiran Afshan, Mohammad K. Okla, Ibrahim A. Saleh, Abdul Razzaq, Munib Hussain, Sabika Firasat, Gulnora Mirzaeva, Bakhtiyor Kholmatov, Erinda Lika

{"title":"Insights into tick dynamics and anaplasmosis in ruminants: A microscopic and molecular perspective","authors":"Ayesha Malik, Kiran Afshan, Mohammad K. Okla, Ibrahim A. Saleh, Abdul Razzaq, Munib Hussain, Sabika Firasat, Gulnora Mirzaeva, Bakhtiyor Kholmatov, Erinda Lika","doi":"10.1111/azo.12510","DOIUrl":"https://doi.org/10.1111/azo.12510","url":null,"abstract":"Ticks are blood‐sucking parasite and transmit pathogens to humans, domestic and wild animals. Ticks are seriously damage the production of sheep and goats, resulting in heavy economic loss to farmers. The present study investigated microscopic and molecular identification of ticks and tick‐borne anaplasmosis infesting sheep and goats in three agro‐ecological zones of Pakistan. The collected ticks were identified at species level based on their morphological features through microscopy by using taxonomic keys. Four Rhipicephalus (R.) species namely: R. guilhoni Rh. geigyi, R. annulatus, R. pulchellus, two Haemaphysalis (Hae) spp. Hae. sulcate, Hae. punctate, one Ixodes ricinus and Hyalomma anatolicum were identified. The morphological variations in their body sizes, scutal pattern, female genital opening, spiracular plate length and male adanal plate were recorded. Furthermore, we assessed the effectiveness of utilizing the 16S rRNA gene sequence to differentiate Anaplasma samples at the species level. Microscopically suspected positive blood samples for Anaplasma were subjected to DNA extraction. Anaplasma was observed in the blood of 14 animals. The sequence similarity between Anaplasma marginale and the reference genome were 99.25%, while below this value indicating a distinct species. Phylogenetic analysis revealed close similarity with A. marginale isolates from Iran, Vietnam and Pakistan This study contributes to the epidemiology of ticks and TBPs in the KP province and highlights the importance of proactive TBP surveillance in livestock.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141550441","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Shape variation in the snapping claw of Alpheus Fabricius, 1898 (Decapoda: Alpheidae): A geometric morphometrics approach Alpheus Fabricius, 1898 (Decapoda: Alpheidae) 鳄爪的形状变化：几何形态计量学方法

IF 1.2 4区生物学

Acta Zoologica Pub Date : 2024-06-27 DOI: 10.1111/azo.12511

Whandenson M. Nascimento, Alexandre O. Almeida, Allysson P. Pinheiro

{"title":"Shape variation in the snapping claw of Alpheus Fabricius, 1898 (Decapoda: Alpheidae): A geometric morphometrics approach","authors":"Whandenson M. Nascimento, Alexandre O. Almeida, Allysson P. Pinheiro","doi":"10.1111/azo.12511","DOIUrl":"https://doi.org/10.1111/azo.12511","url":null,"abstract":"The evolutionary success of the Alpheus snapping shrimps is linked to their snapping claws, which were considered the key innovation in the evolution of these shrimps. However, many aspects of the evolution of snapping claws remain unknown. We evaluate the degree of intra‐ and interspecific variation in the shape of the snapping claw in different snapping shrimp Alpheus species. For this, we used a geometric morphometric tool. We investigated the variation in snapping claw shape from two perspectives — interspecific variation and sexual shape dimorphism — in three species: Alpheus angulosus, A. carlae, and A. estuariensis, from three locations along the southern coast of Bahia state in northeastern Brazil. Our results revealed interspecific variation in the shape of the snapping claw among A. angulosus, A. carlae, and A. estuariensis. In addition, sexual shape dimorphism was confirmed in A. angulosus and A. carlae. However, in A. estuariensis, our results reveal sexual monomorphism in the snapping claw. Our findings highlight the importance of considering both ecological context and phylogenetic relationships when analysing the morphology of the snapping claw in Alpheus snapping shrimps. We suggest further investigations to better understand the interspecific variation and sexual dimorphism in snapping claws and their implications for the evolutionary history of these shrimps.","PeriodicalId":50945,"journal":{"name":"Acta Zoologica","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-06-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141528879","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0