Invertebrate Reproduction & Development最新文献_第9页

Temporal pattern of offspring release and degree of parental investment in two viviparous asterinid sea stars with an overview of matrotrophy and offspring size variation in echinoderms that care for their offspring 两颗胎生星号海星的后代释放和父母投资程度的时间模式——照顾后代的棘皮动物的松养动物和后代大小变化概述

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-05-13 DOI: 10.1080/07924259.2020.1764117

M. S. Khan, C. Whittington, M. Thompson, M. Byrne

{"title":"Temporal pattern of offspring release and degree of parental investment in two viviparous asterinid sea stars with an overview of matrotrophy and offspring size variation in echinoderms that care for their offspring","authors":"M. S. Khan, C. Whittington, M. Thompson, M. Byrne","doi":"10.1080/07924259.2020.1764117","DOIUrl":"https://doi.org/10.1080/07924259.2020.1764117","url":null,"abstract":"ABSTRACT The temporal pattern of juvenile release by two species of viviparous asterinid sea stars that incubate their young in the gonads was documented. Parvulastra parvivipara released juveniles (400–3000 µm diameter) in 1–5 cohorts. Parents produced large juveniles (>1000-µm) irrespective of adult size. Released juveniles were larger than the retained juveniles. Most Cryptasterina hystera offspring were released in one large clutch of similarly sized juveniles (732-µm mean diameter). After this initial release, the presence of large juveniles (944-µm mean diameter) in the gonads of C. hystera indicates that they are supported by matrotrophy, potentially through sibling cannibalism. The degree of parental investment additional to the egg in both species was estimated by using a matrotrophy index (MI, the ratio of juvenile and egg dry mass). As the eggs of P. parvivipara and C. hystera could not be isolated, the eggs of their congeners (P. exigua and C. pentagona, respectively) were used as a proxy to estimate the MI, the first application of this index to a marine invertebrate. The MI ranged from 597 to 55082 in P. parvivipara and 1.7–6.2 in C. hystera for juveniles across the different size classes. Matrotrophy and size variation of offspring may be characteristics of echinoderms that incubate their young.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"249 - 261"},"PeriodicalIF":0.8,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1764117","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45639156","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: 1

Practical implementation of in vitro culture of Lanice conchilega (Polychaeta) in a coastal defence context 海防背景下Lanice conchilega（Polychaeta）体外培养的实际实施

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-05-13 DOI: 10.1080/07924259.2020.1762772

L. Wyns, A. Semeraro, T. Sterckx, D. Delbare, G. Van Hoey

{"title":"Practical implementation of in vitro culture of Lanice conchilega (Polychaeta) in a coastal defence context","authors":"L. Wyns, A. Semeraro, T. Sterckx, D. Delbare, G. Van Hoey","doi":"10.1080/07924259.2020.1762772","DOIUrl":"https://doi.org/10.1080/07924259.2020.1762772","url":null,"abstract":"ABSTRACT Current coastal protection measures become increasingly insufficient under circumstances of climate change and increasing anthropogenic pressures. Aggregations of the ecosystem engineer Lanice conchilega (Pallas, 1766) stabilize the sediment bed of sandy shorelines. Therefore, this polychaete is considered an interesting target species in the search for nature-inspired designs in coastal zone management. This study investigated the potential of L. conchilega as a resilient coastal builder by trying to cultivate them and enhancing the larval settling process by using artificial substrata. A closed Recirculating aquaculture system (RAS) combining spawning induction and larval rearing was designed and tested. The tanks with adults were exposed to different photoperiods prior to water temperature rise. A spawning and fertilisation event was recorded in the 0:24 Light:Dark (LD) tank up to the trochophore stage. Additionally, the temperature-shock spawning induction method was experimentally proved effective. All practical experience on the in vitro spawning induction and larval rearing of L. conchilega is discussed and summarized as a guideline for future culturing trials. In vitro substratum settlement experiments with aulophore larvae sampled with plankton hauling revealed the potential of artificial substrata to trap larvae. Nonetheless, a preference in substratum type is not to be excluded yet.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"219 - 236"},"PeriodicalIF":0.8,"publicationDate":"2020-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1762772","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46440176","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: 2

Completing the life cycle of a broadcast spawning coral in a closed mesocosm 在封闭的中尺度中完成广播产卵珊瑚的生命周期

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-04-28 DOI: 10.1080/07924259.2020.1759704

J. Craggs, J. Guest, Michelle J. Davis, M. Sweet

引用次数: 14

Reproduction efficiency of the leech Whitmania pigra and multiple paternity revealed by microsatellite analyses 微卫星分析揭示猪水蛭的繁殖效率和多重亲子关系

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-04-17 DOI: 10.1080/07924259.2020.1748731

Liang-Wei Xiong, Shuaibing Wang, Quan Wang, Jianguo Wang

{"title":"Reproduction efficiency of the leech Whitmania pigra and multiple paternity revealed by microsatellite analyses","authors":"Liang-Wei Xiong, Shuaibing Wang, Quan Wang, Jianguo Wang","doi":"10.1080/07924259.2020.1748731","DOIUrl":"https://doi.org/10.1080/07924259.2020.1748731","url":null,"abstract":"ABSTRACT Whitmania pigra is used in traditional Chinese medicine for the treatment of cardiovascular diseases and other chronic diseases, but its reproductive behaviour has not been well studied. The purpose of this study was to investigate the reproduction efficiency and mating system of W. pigra. The study was conducted under laboratory conditions. A total of 28 gravid leeches weighing 22.3 ± 6.1 g were used. The leeches deposited 6.00 ± 0.82 cocoons by losing 46.68 ± 9.89% in body weight. The cocoons, with a length of 20.93 ± 4.84 mm and diameter of 17.20 ± 4.41 mm, had 30.97 ± 11.19 hatchlings. An average of 182.70 ± 51.16 hatchlings per leech were obtained from the leeches. There was a significant negative correlation between the cocoon laying period and cocoon size. By genotyping 10 adult leeches and 200 of their offspring (20 offspring per leech) with six microsatellite loci, multiple paternity was observed for all families. We inferred a minimum of 2–5 mates per family, with an average of 3.30 ± 0.95 mates. This was the first direct evidence of multiple paternity in W. pigra. This result will be useful inartificial production and conservation of the leech W. pigra.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"201 - 207"},"PeriodicalIF":0.8,"publicationDate":"2020-04-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1748731","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43917960","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: 4

Senescence in Acartia tonsa (Copepoda, Calanoida): male’s reproductive performance preliminary results from a southern population 唐Acartia tonsa（桡足目、大足目）的衰老：南方种群雄性繁殖性能的初步结果

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-04-12 DOI: 10.1080/07924259.2020.1748126

L. Rodríguez-Graña, D. Calliari

{"title":"Senescence in Acartia tonsa (Copepoda, Calanoida): male’s reproductive performance preliminary results from a southern population","authors":"L. Rodríguez-Graña, D. Calliari","doi":"10.1080/07924259.2020.1748126","DOIUrl":"https://doi.org/10.1080/07924259.2020.1748126","url":null,"abstract":"ABSTRACT The effect of age on fertilization capacity and reproductive potential were examined in males from a laboratory population of Acartia tonsa over their life time providing new empirical data for a foundational estuarine species. The reproductive functions spermatophore production (SPR), number of fertilized females (NFF), percentage of males that effectively fertilized females (M), egg production rate (EPR), and hatching success (EHS) were evaluated during the adult life of male A. tonsa, from maturation until advanced age (38 d) under controlled laboratory conditions. The ageing process of the male was manifested occurred as a general decrease in most of the reproductive functions, but these followed specific patterns: SPR did not decay significantly with advanced male age, as it did happen with NFF, M and EPR; EHS increased at an intermediate age. Those changes were out of phase: while EPR declined already at intermediate age, NFF and M evidenced a decline at more advanced ages. Results suggest that reproductive senescence in copepod males involves the interaction of several mechanisms whose study will require comprehensive approaches.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"237 - 243"},"PeriodicalIF":0.8,"publicationDate":"2020-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1748126","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45978630","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: 4

An equation for geometric progression in Brooks-Dyar growth ratios Brooks-Dyar增长率的几何级数方程

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-04-02 DOI: 10.1080/07924259.2019.1695680

T. Hawes

{"title":"An equation for geometric progression in Brooks-Dyar growth ratios","authors":"T. Hawes","doi":"10.1080/07924259.2019.1695680","DOIUrl":"https://doi.org/10.1080/07924259.2019.1695680","url":null,"abstract":"ABSTRACT The Brooks-Dyar rule predicts a geometric progression in the growth increments of successive instars. Although these increments are readily calculated as ratios, analysis of the relationship between these ratios has been more problematic. In the early twentieth century, the use of logarithms was proposed as a method for calculating the equation of the line. This is as close to a standardized method of analysis that the ratios have come in entomology. It is argued here: (a) that a log scale is a misleading and misunderstood criterion in this context because growth increments do not span multiple orders of magnitude; and (b) a straight-line is an inappropriate mode of representation for growth patterns that are discontinuous. Moreover, the transformation does not provide any means for quantifying the degree of geometric progression. A simple exponential equation can be applied easily to any ratio data set to provide a more realistically curved plot of growth increments. A property of geometric progression sequences (b2 = ac) can be utilized to provide an equation for evaluating the degree of geometric progression in development. Transformations are replaced by greater biological realism and a precise method of quantifying agreement with Brooks-Dyar’s rule.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"83 - 94"},"PeriodicalIF":0.8,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2019.1695680","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48884315","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: 2

Population features, sexual dimorphism and handedness of the primary freshwater crab Trichodactylus cf. fluviatilis (Brachyura: Trichodactylidae) from southeastern Brazil 巴西东南部淡水毛趾蟹(短足目:毛趾蟹科)的种群特征、性别二态性和手性

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-04-02 DOI: 10.1080/07924259.2019.1699176

R. A. Pescinelli, F. Mantelatto, R. C. Costa

{"title":"Population features, sexual dimorphism and handedness of the primary freshwater crab Trichodactylus cf. fluviatilis (Brachyura: Trichodactylidae) from southeastern Brazil","authors":"R. A. Pescinelli, F. Mantelatto, R. C. Costa","doi":"10.1080/07924259.2019.1699176","DOIUrl":"https://doi.org/10.1080/07924259.2019.1699176","url":null,"abstract":"ABSTRACT Recent molecular analyses characterized the freshwater crab Trichodactylus fluviatilis as a species complex. Considering this new scenario, studies about the population features are fundamental to understanding the biology of species belongs to this complex. We investigated the population from southeastern Brazil identify as Trichodactylus cf. fluviatilis, testing the hypotheses that sex ratio differs from the expected 1:1, and that the species shows sexual dimorphism in size, weaponry and body weight. The reproductive period and handedness were also investigated. Population features were determined based on the size-frequency distribution, gonadal development and sex ratio. Sexual dimorphism was analysed comparing the average size and the allometric coefficient. Handedness was verified according to the proportion of right and left chelipeds. Sex ratio skewed towards males and the reproduction was continuous. The sexual dimorphism in T. cf. fluviatilis was found in structures related to weaponry and reproduction. In weaponry, sexual dimorphism was demonstrated by robust chelipeds and high allometric values in males. In females, a high allometric was recorded to the abdomen, structure directly related to reproduction. The right-handedness was observed to the species. All these results contribute to a better understanding of the species’ life history.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"105 - 95"},"PeriodicalIF":0.8,"publicationDate":"2020-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2019.1699176","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45205823","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: 2

Suppressive effects of insect growth regulators on development, reproduction and nutritional indices of the Egyptian cotton leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae) 昆虫生长调节剂对埃及棉叶虫发育、繁殖及营养指标的抑制作用

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-04-01 DOI: 10.1080/07924259.2020.1741454

E. Shaurub, Aziza E. Abdel Aal, S. A. Emara

{"title":"Suppressive effects of insect growth regulators on development, reproduction and nutritional indices of the Egyptian cotton leafworm, Spodoptera littoralis (Lepidoptera: Noctuidae)","authors":"E. Shaurub, Aziza E. Abdel Aal, S. A. Emara","doi":"10.1080/07924259.2020.1741454","DOIUrl":"https://doi.org/10.1080/07924259.2020.1741454","url":null,"abstract":"ABSTRACT The insect growth regulators (IGRs) chlorfluazuron, flufenoxuron and pyriproxyfen were evaluated, using the leaf-dip technique, on the various developmental and reproductive aspects of Spodoptera littoralis in the parental generation (P), first filial generation (F1) and second filial generation (F2). Additionally, the effect of these IGRs on nutritional indices was also evaluated. The effect on development and reproduction was IGR and generation dependent, with a profound negative impact in the case of the P generation treated with chlorfluazuron. In all treatments, fecundity and fertility increased progressively from the P generation to the F2 generation, and thereby both approached those of the controls. The change in nutritional indices was found to be a function in the candidate IGR and age of the same instar larvae, with a drastic change in late last larval instar (3-day-old 6th larval instar), particularly in the case of treatment with chlorfluazuron. Furthermore, toxicity and morphological deformities induced by the IGRs were reported. The overall results suggest that the IGRs under investigation, particularly chlorfluazuron, interfere with the development process and have the potential for S. littoralis control.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"178 - 187"},"PeriodicalIF":0.8,"publicationDate":"2020-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1741454","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44715101","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: 12

Oviposition behaviour in the clitellate annelid Tubifex tubifex: video recordings of mature worms under laboratory culture conditions 盘状环节动物Tubifex Tubifex的产卵行为：实验室培养条件下成熟蠕虫的视频记录

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-03-23 DOI: 10.1080/07924259.2020.1744742

Takashi Shimizu

{"title":"Oviposition behaviour in the clitellate annelid Tubifex tubifex: video recordings of mature worms under laboratory culture conditions","authors":"Takashi Shimizu","doi":"10.1080/07924259.2020.1744742","DOIUrl":"https://doi.org/10.1080/07924259.2020.1744742","url":null,"abstract":"ABSTRACT In the present study, videos were recorded to observe oviposition in living, mature worms of Tubifex tubifex. After the formation of a lemon shaped cocoon around the clitellum at segments 11 and 12, mature eggs that have been stored in the ovisac at segments 12–14 begin to move into segments 11–12 through the constricted posterior end of the cocoon. Within a second or so, ovisac eggs emerge out of the posterior margin and return to the posterior segments. Such movements are repeated several times before the ovisac eggs settle in the ovarian coelom of segment 11. Within a few seconds of the eggs moving into the ovarian coelom, the clitellar region begins to change its contour slightly; it looks as if something round is tapping on the coelomic wall of this region. As this tapping ceases, the coelomic eggs begin to move to the space between the cocoon and the clitellum. Coelomic eggs are individually squeezed out of the female gonopores located near the midpoint of the cocoon. This process, referred to as egg deposition, is accomplished within 30 s. The egg deposition is followed by the backward withdrawal of the anterior segments from the cocoon.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"188 - 200"},"PeriodicalIF":0.8,"publicationDate":"2020-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1744742","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41435955","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

Reproductive and developmental performance of the yellow fever mosquito, Aedes aegypti, fed on the Syrian hamster, Mesocricetus auratus, immunized with a mosquito midgut lectin 用蚊中肠凝集素免疫以叙利亚仓鼠金黄色环斑蚊为食的埃及伊蚊的繁殖和发育性能

IF 0.8 4区生物学

Invertebrate Reproduction & Development Pub Date : 2020-03-13 DOI: 10.1080/07924259.2020.1739151

T. H. Ayaad, Rasha K. Al-Akeel, Ebtisam M. Al-Olayan, E. Shaurub, A. Aloufi

{"title":"Reproductive and developmental performance of the yellow fever mosquito, Aedes aegypti, fed on the Syrian hamster, Mesocricetus auratus, immunized with a mosquito midgut lectin","authors":"T. H. Ayaad, Rasha K. Al-Akeel, Ebtisam M. Al-Olayan, E. Shaurub, A. Aloufi","doi":"10.1080/07924259.2020.1739151","DOIUrl":"https://doi.org/10.1080/07924259.2020.1739151","url":null,"abstract":"ABSTRACT Eco-friendly alternatives to unsafe conventional pesticides against disease vectors are currently needed. Host vaccination using an insect gut antigen is a feasible approach. Thus, the present study aimed to examine the effect of ingestion of antibodies from hamsters, raised via immunization of hamsters with a partially purified midgut lectin of Aedes aegypti, in a blood meal of this disease vector on the different biological parameters (mortality percentage, number of eggs/female (fecundity), longevity, egg incubation period, larval duration and larval weight). The biological parameters of the parental (P), first (F1) and second (F2) filial generations of Ae. aegypti adult females fed for 48 h on immunized hamsters were compared with those of the controls at each generation separately, and among the different generations. Mortality percentage, egg incubation period and larval duration were significantly higher than those of the controls at each generation tested. In contrast, fecundity, longevity and larval weight were significantly lower than those of the controls at each generation tested. The greatest change in all the biological parameters tested was observed in the F2 generation. The results obtained provide preliminary evidence for the potential of anti-mosquito antibodies to disrupt the development of mosquito vectors. Future studies using monoclonal antibodies as well as cytotoxicity will be evaluated.","PeriodicalId":14482,"journal":{"name":"Invertebrate Reproduction & Development","volume":"64 1","pages":"169 - 177"},"PeriodicalIF":0.8,"publicationDate":"2020-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://sci-hub-pdf.com/10.1080/07924259.2020.1739151","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45420797","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