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A beautifully preserved comma shrimp (Pancrustacea: Peracarida) from the Plio-Pleistocene of Japan and the fossil record of crown Cumacea 日本上新世-始新世保存完好的逗号虾(盘壳目:鲈科)和冠栉水母的化石记录
IF 1.3 4区 生物学
Invertebrate Biology Pub Date : 2024-09-10 DOI: 10.1111/ivb.12440
Javier Luque, Sarah Gerken
{"title":"A beautifully preserved comma shrimp (Pancrustacea: Peracarida) from the Plio-Pleistocene of Japan and the fossil record of crown Cumacea","authors":"Javier Luque,&nbsp;Sarah Gerken","doi":"10.1111/ivb.12440","DOIUrl":"10.1111/ivb.12440","url":null,"abstract":"<p>Comma shrimp, or cumaceans, are diverse benthic crustaceans, yet they are one of the groups with the poorest fossil record, hindering our understanding of the evolution of the group in deep time. Here, we describe a new species of fossil comma shrimp, <i>Makrokylindrus itoi</i> sp. nov., from the Plio-Pleistocene of Japan. The singular fossil is exceptionally preserved, including details of the carapace, cuticle, and some appendages, and it represents the first known fossil of the family Diastylidae and only the fourth fossil crown group cumacean known to date. We suggest that the scarce and sparsely known fossil record of cumaceans likely reflects a lack of recognition due to their small size and unfamiliar anatomy, making fossil cumaceans easy to misidentify, be confused with crustacean larvae of unknown affinities, or be interpreted as fragments of other crustaceans (taxonomic bias), rather than a lack of fossilization potential (taphonomic bias).</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ivb.12440","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212637","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Reproductive ecology of the sand crab (Ovalipes punctatus) population in the Yellow Sea of Korea 韩国黄海沙蟹(Ovalipes punctatus)种群的生殖生态学
IF 1.3 4区 生物学
Invertebrate Biology Pub Date : 2024-08-27 DOI: 10.1111/ivb.12438
Hyeon Gyu Lee, Jae Mook Jeong, Youn Hee Choi
{"title":"Reproductive ecology of the sand crab (Ovalipes punctatus) population in the Yellow Sea of Korea","authors":"Hyeon Gyu Lee,&nbsp;Jae Mook Jeong,&nbsp;Youn Hee Choi","doi":"10.1111/ivb.12438","DOIUrl":"10.1111/ivb.12438","url":null,"abstract":"<p>Understanding the reproductive ecology of crustaceans is important for developing appropriate resource management policies. Because the demand for sand crabs (<i>Ovalipes punctatus</i>) as a food resource has recently surged in Korea, their reproductive ecological characteristics should be comprehensively described. In this study, the reproductive ecological characteristics—sex ratio, female gonad maturity, abdominal width (AW), condition factor (<i>K</i>), and gonadosomatic index (<i>GSI</i>)—of individuals of <i>O. punctatus</i> collected from the Yellow Sea in Korea (35°15′00″N, 125°15′00″E) from January to December 2021 were examined. Based on the sex ratio (1:1.61, females:males), we determined that males were more abundant than females. The monthly <i>K</i> for both the males and females reached its maximum in April. The monthly <i>GSI</i> revealed that the males were most numerous in December, whereas the females were most abundant in May. The <i>GSI</i> graph indicates that the main spawning season of <i>O. punctatus</i> is from May to July. The AW and <i>GSI</i> of the females increased as their gonads matured; based on this correlation, the maturity of female individuals can be determined by examining the abdominal flap morphology. The results of histological analysis indicated that females of <i>O. punctatus</i> exhibit synchronous development, by which oocytes develop simultaneously. Furthermore, the size at maturity, at which more than half of the individuals participated in spawning, was 75.6 mm. The findings of this study contribute to the development of policies for the sustainable fisheries of <i>O. punctatus</i>.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-08-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212648","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
Excitation–contraction coupling reflects the metabolic profile of mantle muscle in young cuttlefish (Sepia officinalis) 兴奋-收缩耦合反映了幼墨鱼(Sepia officinalis)套膜肌肉的代谢状况
IF 1.3 4区 生物学
Invertebrate Biology Pub Date : 2024-08-26 DOI: 10.1111/ivb.12439
Neal I. Callaghan, Loïck Ducros, J. Craig Bennett, Juan C. Capaz, José Pedro Andrade, Antonio V. Sykes, William R. Driedzic, Simon G. Lamarre, Tyson J. MacCormack
{"title":"Excitation–contraction coupling reflects the metabolic profile of mantle muscle in young cuttlefish (Sepia officinalis)","authors":"Neal I. Callaghan,&nbsp;Loïck Ducros,&nbsp;J. Craig Bennett,&nbsp;Juan C. Capaz,&nbsp;José Pedro Andrade,&nbsp;Antonio V. Sykes,&nbsp;William R. Driedzic,&nbsp;Simon G. Lamarre,&nbsp;Tyson J. MacCormack","doi":"10.1111/ivb.12439","DOIUrl":"10.1111/ivb.12439","url":null,"abstract":"<p>The mantle muscle of common cuttlefish, <i>Sepia officinalis</i>, is responsible both for high-magnitude and rapid movements for locomotion, as well as sustained ventilation, which require specific metabolic, electrophysiological, and structural organization. Young cuttlefish have a highly oxidative phenotype and a rapid growth rate. Here, we show high rates of oxygen consumption and protein synthesis in juveniles, and these rates decay exponentially over the first few weeks of growth. This is associated with considerable citrate synthase activity (relative to larger cuttlefish) but a lack of glucose metabolism based on zero uptake of glucose by isolated muscle sheets and minimal activity of hexokinase (similar to larger animals). In contrast to glucose metabolism in the heart, glucose metabolism in these muscle sheets was not stimulated by extracellular taurine. Previous research revealed an unusual ion channel complement in mantle myocytes, the most notable feature of which is the lack of a Na<sup>+</sup> current during depolarization. Because this adaptation is not consistent across the coleoid clade, we investigated excitation–contraction coupling. Here, mantle energetics and contractility, including the individual components of the total Ca<sup>2+</sup> flux driving contraction, were studied. Results indicate that the majority of Ca<sup>2+</sup> current underlying contractile stress development capacity in cuttlefish juveniles is not mediated by dihydropyridine-sensitive L-type channels, in contrast to their adult counterparts, and the sarcoplasmic reticulum contributes little to routine contractility. We had previously noted an influence of physiological levels of taurine in limiting cardiac contractility but found no analogous sensitivity in mantle muscle. Finally, transmission electron microscopy of subcellular architecture revealed the presence of sarcoplasmic tubular aggregates, suggesting that oxidative inhibition of sarcoplasmic reticulum function limits its role in this life stage.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ivb.12439","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212640","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Cryptic species diversity and contrasting climate profiles in Aotearoa New Zealand, egg-laying and live-bearing velvet worms (Onychophora, Peripatopsidae: Ooperipatellus and Peripatoides) 新西兰奥特亚罗瓦的隐蔽物种多样性和气候特征对比,产卵绒毛虫和活体绒毛虫(Onychophora, Peripatopsidae: Ooperipatellus and Peripatoides)
IF 1.3 4区 生物学
Invertebrate Biology Pub Date : 2024-08-11 DOI: 10.1111/ivb.12436
Arianna Lord, Thomas R. Buckley, Dianne M. Gleeson, Gonzalo Giribet
{"title":"Cryptic species diversity and contrasting climate profiles in Aotearoa New Zealand, egg-laying and live-bearing velvet worms (Onychophora, Peripatopsidae: Ooperipatellus and Peripatoides)","authors":"Arianna Lord,&nbsp;Thomas R. Buckley,&nbsp;Dianne M. Gleeson,&nbsp;Gonzalo Giribet","doi":"10.1111/ivb.12436","DOIUrl":"10.1111/ivb.12436","url":null,"abstract":"<p>Aotearoa (New Zealand) is a biodiversity hotspot for temperate invertebrate taxa and home to high levels of endemicity. However, our knowledge of species-level diversity and phylogeny of endemic New Zealand Onychophora (velvet worms) is at present limited. Here, we use mitochondrial <i>cytochrome c oxidase subunit I</i> (<i>COI</i>) barcoding to assess the extent of species diversity for the two velvet worm genera found in New Zealand, the ovoviviparous and endemic <i>Peripatoides</i> and the oviparous <i>Ooperipatellus</i>, found in Australia and New Zealand. Our results reveal that the estimated number of species of both genera in New Zealand is greater than currently described. We estimate there are between 13 and 67 species of <i>Peripatoides</i> and between 16 and 21 species of <i>Ooperipatellus</i> endemic to New Zealand. This is a stark increase from the two currently described New Zealand species of <i>Ooperipatellus</i> and previous work that has identified 10 species within <i>Peripatoides</i>. Our exploration of climatic variables shows that individuals of <i>Ooperipatellus</i> are predominantly found in wet, cool environments and <i>Peripatoides</i> are found across relatively drier, warmer habitats. We also generate ecological niche models to provide initial predictions of the distribution of climatically suitable habitats for each genus across New Zealand.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142212639","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 new species of Kannaphallus (Polyopisthocotylea: Heteraxinidae) parasitic on the twobar seabream Acanthopagrus bifasciatus (Sparidae, Teleostei) in Saudi Arabia 沙特阿拉伯寄生于双条鲷 Acanthopagrus bifasciatus (Sparidae, Teleostei) 的 Kannaphallus (Polyopisthocotylea: Heteraxinidae) 新种
IF 1.3 4区 生物学
Invertebrate Biology Pub Date : 2024-08-08 DOI: 10.1111/ivb.12437
Ghada Alojayri, Rewaida Abdel-Gaber, Osama B. Mohammed, Tahani Al-Otaibi, Esam S. Al-Malki, Nawal Al-Hoshani, Mina A. Almayouf, Esam Al-Shaebi, Saleh Al-Quraishy
{"title":"A new species of Kannaphallus (Polyopisthocotylea: Heteraxinidae) parasitic on the twobar seabream Acanthopagrus bifasciatus (Sparidae, Teleostei) in Saudi Arabia","authors":"Ghada Alojayri,&nbsp;Rewaida Abdel-Gaber,&nbsp;Osama B. Mohammed,&nbsp;Tahani Al-Otaibi,&nbsp;Esam S. Al-Malki,&nbsp;Nawal Al-Hoshani,&nbsp;Mina A. Almayouf,&nbsp;Esam Al-Shaebi,&nbsp;Saleh Al-Quraishy","doi":"10.1111/ivb.12437","DOIUrl":"10.1111/ivb.12437","url":null,"abstract":"<p>Monogeneans are highly host-specific parasites infecting marine and freshwater fish. However, little information is available about the parasitic taxa within Heteraxinidae. An integrative study was performed to understand the taxonomic status of an unconfirmed heteraxinid marine species parasitizing the gill region of <i>Acanthopagrus bifasciatus</i> (Sparidae) from the Arabian Gulf (Saudi Arabia). Based on the morphological study, this parasite has all the generic features of the genus <i>Kannaphallus</i> (Heteraxinidae, Mazocraeidea). Distinct criteria that discriminated this species from other taxa of the same genus are the presence of genital spines (26–29), a short sclerotized duct in the male copulatory organ, the number of testes (mean 40, range 30–50), and clamps in the haptoral structure (45–50 in a long row and 19–22 in a short row). DNA of parasite species reported in the present study was amplified and sequenced for the nuclear large subunit of the ribosomal RNA (<i>28S</i> rRNA) gene and the mitochondrial <i>cytochrome c oxidase subunit I</i> (<i>COI</i>) gene. Results indicate that sequences obtained from both genes are unique and different from related sequences from the genus <i>Kannaphallus</i>. Morphological as well as molecular data indicate that our specimens are from a new species, and the name <i>Kannaphallus acanthopagrusi</i> n. sp. is suggested. This is the first report of a heteraxinid parasitizing marine sparid fish from Saudi Arabia, with unique morphological and molecular features.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-08-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141926576","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
Annual gametogenic development of the Asiatic hard clam, Meretrix meretrix, collected from the west coast of Moheshkhali Island, Cox's Bazar, Bangladesh 从孟加拉国考克斯巴扎尔莫赫什卡利岛西海岸采集的亚洲硬蛤蜊 Meretrix meretrix 的年度配子发育情况
IF 1.3 4区 生物学
Invertebrate Biology Pub Date : 2024-07-15 DOI: 10.1111/ivb.12435
Md. Sujon Mia, Sharmin Akhter, Selina Yeasmine, Sumaiya Binte Ayesha, M. Jasim Uddin
{"title":"Annual gametogenic development of the Asiatic hard clam, Meretrix meretrix, collected from the west coast of Moheshkhali Island, Cox's Bazar, Bangladesh","authors":"Md. Sujon Mia,&nbsp;Sharmin Akhter,&nbsp;Selina Yeasmine,&nbsp;Sumaiya Binte Ayesha,&nbsp;M. Jasim Uddin","doi":"10.1111/ivb.12435","DOIUrl":"10.1111/ivb.12435","url":null,"abstract":"<p>We investigated the annual gametogenic development of the Asiatic hard clam, <i>Meretrix meretrix</i>, collected from the west coast of Moheshkhali Island, Cox's Bazar, Bangladesh, by using biometry and histology through monthly sampling from July 2018 to June 2019. After biometric measurements, cross sections were cut for histology to determine the sex and gonadal maturity of the clams. Condition index (CI) showed two distinct peaks in July and December, which indicated that clams were ripe during these months, and a subsequent decrease in CI reflected spawning, which was consistent with histology. Our study revealed a biannual spawning cycle of the clams and gametogenesis starting in October and June. Spawning occurred from February to May and July to September. Maturity index (MI) showed two distinct peaks in July (3.50) and January (3.60) when most of the clams were in late developing or ripe stages. A gradual increase in temperature from annual minima in conjunction with decreasing salinity levels may trigger spawning in February, but spawning in July was initiated when salinity levels increased from annual minima. The data could be used by resource managers for the conservation of this commercial species and to time harvesting for the best quality clams without interrupting spawning activity.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-07-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141648307","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
Morphological characterization of anterior axial bifurcation in Holothuria (Halodeima) grisea and other puzzling occurrences in Holothuroidea 灰褐斑蝶(Halodeima)前轴分叉的形态特征以及灰褐斑蝶目中其他令人费解的现象
IF 1.3 4区 生物学
Invertebrate Biology Pub Date : 2024-06-21 DOI: 10.1111/ivb.12434
Guilherme Sabino Rupp, Luciana Martins, Camilla Souto, Jean-François Hamel, Annie Mercier
{"title":"Morphological characterization of anterior axial bifurcation in Holothuria (Halodeima) grisea and other puzzling occurrences in Holothuroidea","authors":"Guilherme Sabino Rupp,&nbsp;Luciana Martins,&nbsp;Camilla Souto,&nbsp;Jean-François Hamel,&nbsp;Annie Mercier","doi":"10.1111/ivb.12434","DOIUrl":"10.1111/ivb.12434","url":null,"abstract":"<p>The present study explores rare but taxonomically and geographically widespread cases of anterior body axial bifurcation in adult sea cucumbers (Echinodermata: Holothuroidea). One individual of <i>Holothuria</i> (<i>Halodeima</i>) <i>grisea</i>, a common intertidal species along the Atlantic coast of Brazil, was studied externally and internally. Individuals of <i>Apostichopus californicus</i> from the northeastern Pacific coast of Washington (USA), <i>H</i>. (<i>Mertensiothuria</i>) <i>leucospilota</i> in the Indian Ocean off La Réunion, <i>H</i>. (<i>Panningothuria</i>) <i>forskali</i> from the Atlantic coast of Spain, and <i>Parastichopus tremulus</i> from the northeastern Atlantic off Norway were also reported to display similar anterior body axial bifurcation. In each of these species, the anterior body presented two mouths with their respective crown of tentacles. In vivo observations of <i>H</i>. (<i>Halodeima</i>) <i>grisea</i> showed that the two tentacle crowns and mouths were independently functional. Micro-computed tomography (μCT) revealed that the anterior region of the body (up to the pharynx) was duplicated. Internally, two aquapharyngeal bulbs were found, each with their own calcareous ring (one with two plates missing), madreporite, and Polian vesicles. The body presented a normal set of five longitudinal muscle bands, some of which bifurcated orally to support more than one calcareous ring plate. This is the first report of such abnormalities in Holothuroidea and hypotheses that may explain such phenomenon are discussed.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.3,"publicationDate":"2024-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141501270","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
Larval development in the apodid sea cucumber Chiridota gigas, with a focus on coelom development and the serotonergic nervous system during metamorphosis 巨刺参(Chiridota gigas)的幼体发育,重点关注变态过程中的腔室发育和血清素能神经系统
IF 1.2 4区 生物学
Invertebrate Biology Pub Date : 2024-06-11 DOI: 10.1111/ivb.12433
Mary A. Sewell, Thomas A. A. Prowse, Paulina Selvakumaraswamy, Maria Byrne
{"title":"Larval development in the apodid sea cucumber Chiridota gigas, with a focus on coelom development and the serotonergic nervous system during metamorphosis","authors":"Mary A. Sewell,&nbsp;Thomas A. A. Prowse,&nbsp;Paulina Selvakumaraswamy,&nbsp;Maria Byrne","doi":"10.1111/ivb.12433","DOIUrl":"10.1111/ivb.12433","url":null,"abstract":"<p>A unifying feature of echinoderm larvae is the development of a left anterior coelom, which consists of an undivided left axocoel and hydrocoel. Although the axocoel is a key deuterostome trait, the presence of this coelom in holothurians has been the subject of debate. Here, we focus on the development of the coelom in a basal holothuroid, the apodid <i>Chiridota gigas</i> (F. Chiridotidae). The dorsal pore and dorsal duct develop first, just after gastrulation, followed by expansion into an axohydrocoel in the auricularia. The left somatocoel was first evident adjacent to the stomach ~30 days post-fertilization. The axohydrocoel differentiated into two distinct parts: the hydrocoel adjacent to the stomach, and a thin-walled axocoel that was mid-dorsal between the hydrocoel and the dorsal pore. This left axocoel extended to both the anterior and posterior but did not cross the larval midline. Out-folding of the hydrocoel to form the primary tentacles was first observed at 58 days. Transition to a doliolaria with four-rings was rapid (24 hr) and similar to the transition in other holothurians, with the hydrocoel encircling the esophagus. This transition involved a posterior shift of elements of the auricularia ciliary band and associated nervous system. The ciliary band of the auricularia was rearranged to form transverse bands of the doliolaria larva, and at the same time, the serotonergic cells and fibers that had been at the anterior end moved with the portions of the ciliary band with which they were associated. These serotonergic cells and fibers were still present in the pentactula. The first pentactula was observed at 66 days. Coelom development in <i>C. gigas</i> showed two differences from that in other holothurians, including the development of the left axocoel and the extension of the anterior coelom into the preoral lobe. Description of the full larval development in <i>C. gigas</i> also revealed highly variable morphology in the late auricularia stage, which may aid in identifying apodid holothurians from plankton samples.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-06-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ivb.12433","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141355914","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Evo-devo in the ophiuroid family Ophiocomidae 蛇尾目蛇尾科的进化演变
IF 1.2 4区 生物学
Invertebrate Biology Pub Date : 2024-06-10 DOI: 10.1111/ivb.12432
Maria Byrne, Paula Cisternas, Timothy O'Hara, Paulina Selvakumaraswamy
{"title":"Evo-devo in the ophiuroid family Ophiocomidae","authors":"Maria Byrne,&nbsp;Paula Cisternas,&nbsp;Timothy O'Hara,&nbsp;Paulina Selvakumaraswamy","doi":"10.1111/ivb.12432","DOIUrl":"10.1111/ivb.12432","url":null,"abstract":"<p>The Ophiuroidea, the most diverse echinoderm class, exhibits an array of life history patterns and larval forms, the evolution of which is poorly understood. With a robust phylogeny available for the major family, the Ophiocomidae, we undertook an assessment of the evolution of development in these ophiuroids. We spawned 15 species and documented larval development in 14 of these. In total, data on egg size or larval development were available for 27 species across the four recognized genera (<i>Breviturma</i>, <i>Ophiocoma</i>, <i>Ophiocomella</i>, and <i>Ophiomastix</i>). Ophiocomids have a bimodal egg size distribution. Species with small eggs (<i>x̄</i> = 82 μm diameter, range 55–100 μm diameter) and large eggs (<i>x̄</i> = 424 μm diameter, range 335–550 μm diameter) have planktotrophic ophioplutei and lecithotrophic vitellariae, respectively. The advanced ophiopluteus transforms into an armless vitellaria prior to metamorphosis through resorption of the larval arms and rearrangement of the ciliary tracts into series of transverse bands. Thus, the Type II pattern of development (which includes both the ophiopluteus and vitellaria) may be characteristic of the Ophiocomidae. This is not seen in other ophiuroid families. Evolution of nonfeeding (lecithotrophic) development through a vitellaria larva appears to have occurred only once in this family, in the genus <i>Ophiomastix</i>. Several traits appear to be specific to some species or genera, including an ornate fertilization envelope (<i>Ophiocoma</i> species), the presence of an early barrel-shaped larva (<i>Breviturma</i> species), and the presence of vibratile lobes in advanced ophioplutei (<i>Breviturma</i>, <i>Ophiocomella</i>). In species with lecithotrophic development, the vitellaria is distinct, with prominent ciliated lobes around the developing juvenile rudiment. Larval form may assist with identification of ophiocomid larvae in plankton samples.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1111/ivb.12432","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141362391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"生物学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Systematic histology and evidence for the male reproductive activity of Amphibalanus amphitrite (Darwin, 1854) Amphibalanus amphitrite(达尔文,1854 年)雄性生殖活动的系统组织学和证据
IF 1.2 4区 生物学
Invertebrate Biology Pub Date : 2024-05-23 DOI: 10.1111/ivb.12427
Sinlapachai Senarat, Romfa Kaewnuan, Chanyut Sudtongkong, Piyakorn Boonyoung, Woranop Sukparangsi, Piyamat Kongtueng, Saralee Srivorakul, Koraon Wongkhamhaeng, Natthawut Charoenphon, Atsuo lida, Anan Kenthao
{"title":"Systematic histology and evidence for the male reproductive activity of Amphibalanus amphitrite (Darwin, 1854)","authors":"Sinlapachai Senarat,&nbsp;Romfa Kaewnuan,&nbsp;Chanyut Sudtongkong,&nbsp;Piyakorn Boonyoung,&nbsp;Woranop Sukparangsi,&nbsp;Piyamat Kongtueng,&nbsp;Saralee Srivorakul,&nbsp;Koraon Wongkhamhaeng,&nbsp;Natthawut Charoenphon,&nbsp;Atsuo lida,&nbsp;Anan Kenthao","doi":"10.1111/ivb.12427","DOIUrl":"10.1111/ivb.12427","url":null,"abstract":"<p>The striped acorn barnacle, <i>Amphibalanus amphitrite</i>, a taxon of Balanidae, is commonly found along Thailand's coastline. In this study, we used histological methods to describe the microscopic anatomy of <i>A. amphitrite</i>. All samples (<i>n</i> = 30) were obtained from the seagrass beds of Libong Island, Thailand, in the Andaman Sea. Histological observation of various longitudinal sections from specimens of <i>A. amphitrite</i> provides clear insights into the organization of organ systems in the species. The digestive tract was observed to be mainly divided into four subregions, including the cuticle-lined mouth and esophagus, which is characterized by a high columnar epithelium, the stomach, and the intestine. The accessory organ, including the digestive gland, exhibited lobulated structures and was covered with low columnar epithelial cells on a thin layer of smooth muscle. Furthermore, we examined the reproductive system, including both the ovary and testes, as well as the process of gametogenesis. Testicular development was predominantly observed during active breeding seasons throughout the observation.</p>","PeriodicalId":54923,"journal":{"name":"Invertebrate Biology","volume":null,"pages":null},"PeriodicalIF":1.2,"publicationDate":"2024-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141102979","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}
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