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400 results for “Gonad”
SBC LTER: Effect of algal diet on consumption, growth, and gonad weight of the purple sea urchin (Strongylocentrotus pupuratus)
Data are for an experiment evaluating the effects of algal diet on consumption, growth, and gonad weight of an important kelp forest grazer, the purple sea urchin, Strongylocentrotus pupuratus over a 13 week period (November 2010 - February 2011). Four co-occurring species of macroalgae known to be part of its diet were offered: two kelps Macrocystis pyrifera and Pterygophora californica, and the red algae Chondracanthus corymbiferus and Rhodymenia californica. During 9 consectutive trials in a controlled laboratory setting, we measured consumption, test (exoskeleton) growth, jaw growth, change in whole body wet weight and gonad weight of urchins fed one of five experimental diets. The algae chosen represent a large proportion (> 75%) of the algal biomass in Santa Barbara Channel reefs (California, USA). Changes in the availability of these four species of macroalgae could have large implications for the performance of purple sea urchins and consequently, for the structure of subtidal reef communities. These data are presented in a paper describing the effects of five southern California macroalgal diets on the consumption, growth and gonad weight of the purple sea urchin: Matthew C. Foster, M., Byrnes, J. E. K., D. C. Reed. 2015. Effects of five southern California macroalgal diets on consumption, growth and gonad weight in the purple sea urchin, Strongylocentrotus purpuratus. PeerJ. DOI: 10.7717/peerj.719
Modeling the metabolic profile of Mytilus edulis reveals molecular signatures linked to gonadal development, sex and environmental site
<p>Metabolomics dataset used in the publication "Modeling the metabolic profile of Mytilus edulis reveals molecular signatures linked to gonadal development, sex and environmental site"</p> <p>Jaanika Kronberg, Jonathan J. Byrne, Jeroen Jansen, Philipp Antczak, Adam Hines, John Bignell, Ioanna Katsiadaki, Mark R. Viant and Francesco Falciani </p> <p>Metabolomics dataset for metabolic bins 1 to 1045 for 376 mussels as used in the publication.</p> <p>Mussel metadata are described in a separate file (spectrum number, sample label, sex, site, species, month, temperature of water, salinity of water, ADG rate, gonadal stage, parasite load)</p> <p>Species 1: Mytilus edulis, species 2: hybrid, species 3: Mytilus galloprovincialis</p>
A gonad photographs dataset for fish of commercial interest
<p>This dataset was established during a one year project under the IFREMER (Institut Français de Recherche pour l’Exploitation de la Mer) for the harmonisation of maturity data acquisition methods for bony fish of commercial interest, with the help of scientific campaign CGFS, EVHOE, IBTS and ACCOBIOM (Auber et al., 2021, Laffargue et al.,1987, Le Roy et al., 1988).</p> <p>This dataset contains 4133 standardised gonad’s macroscopic photos of 61 species of fish of commercial interests collected along the European coastal water and the Caribbean Sea. The scale used throughout this project is the ICES maturity scale “WKASMSF” (ICES, 2018). To have more details about the photography process used for photos in this database, check the “Fish gonads’ photography protocol” from Le Meleder et al. (2022).</p> <p>This dataset is associated with a GitHub page hosting tools to generate maturity identification forms for fish of commercial interest. To have more detail about identification forms files and have the latest update, check the GitHub page “MaturityScaleTools” (<a href="https://github.com/LM-Anna/MaturityScaleTools">LM-Anna/MaturityScaleTools: Maturity scale tools to identify visual maturity phases (github.com)</a>).</p> <p>This dataset is meant to be enriched with time. Photos may be added to complete the missing maturity phases for every species of the world. To have more details about the dataset or to add new photos, please contact annalemeleder@orange.fr or <a href="mailto:laurent.dubroca@ifremer.fr">laurent.dubroca@ifremer.fr</a>.</p> <p> </p> <p><strong>Images:</strong></p> <ul> <li> <p><strong>Photo_MATURITY.zip</strong> : archive in zip format of 4133 macroscopic photographs of gonads (.JPG; 2Mo-6Mo; sRGB; 1080p). Each photo was taken with the same camera (OLYMPUS / Tough F2.0), on the same white background, with homogeneous lighting to avoid glints from overexposure. Since there are no duplicated photos’ names because all photos were taken with the same camera, names correspond to the one generated by the camera. Photos are sorted under three levels of directories :</p> <ul> <li> <p><strong>First level :<em> species’ scientific name</em></strong> (Example : <em>Dicentrarchus labrax</em>) : there are currently 61 different species listed</p> </li> <li> <p><strong>Second level :<em> F or M</em> </strong>: the sex, with F from females and M for male</p> </li> <li> <p><strong>Third level : <em>A, B, C, D, E or F</em> </strong>: the maturity phases of the ICES 2018 scale. In each folder are assigned the corresponding gonadic photos.</p> </li> </ul> </li> </ul> <p> </p> <p><strong>Data frames:</strong></p> <ul> <li> <p><strong>photo_mat.xlsx</strong> (13 columns / 4133 rows): data table (Excel format) listing all photos in the Photo_MATURITY database, as well as the data associated with the photos. The data table is presented as followed, for each photo :</p> <ul> <li> <p>Name : Name of the photo</p> </li> <li> <p>Type : Type of gonad photo (INT = inside without organs, INT ORG = inside with organs, EXT = outside, EXT OUV = outside and open, FLUANT = fluent)</p> </li> <li> <p>sppeng : English vernacular name of the species or species group established for identification forms</p> </li> <li> <p>Species : Scientific name of the species or species group established for identification guides</p> </li> <li> <p>Sex : Sex of the fish (M = male, F = female)</p> </li> <li> <p>phase ID : visually estimated maturity phase (ICES WKASMSF scale : A, B, C, D, E or F)</p> </li> <li> <p>Link : Link to the photo, to change depending on your path to the downloaded dataset =LIEN_HYPERTEXTE(« (Your path to the dataset)\Photo_MATURITE\« &H<sub>n</sub>& »\« &E<sub>n</sub>& »\« &F<sub>n</sub>& »\« &A<sub>n</sub>& ».JPG »)*</p> </li> <li> <p>spplatTRUE : Scientific name of the species without taking species groups into account</p> </li> <li> <p>sppengTRUE : English vernacular name of the species without taking species groups into account</p> </li> <li> <p>Date : Date the photo was added to the dataset (the year correspond to the year the photo was took)</p> </li> <li> <p>Campaign : Survey during which the photo was taken</p> </li> <li> <p>Area : Geographical area (ICES or not) where the scientific survey occurred (Caribbean sea = Caribbean waters area, IVb-c = ICES area for the IBTS campaign, NA = unknown area, VIId = ICES area for NourManche campaign, VIId/VIIe = ICES area for CGFS campaign, VIIg/VIIj/VIIh/VIIIa-b = ICES area for EVHOE campaign)</p> </li> <li> <p>Commentary : Comments about the photo.</p> </li> </ul> </li> </ul> <p> </p> <p><strong>CAUTION</strong> : When using this database, please make sure to modify the link to the photos in the “Link” column with the link where you downloaded the Photo_MATURITY.zip file, and to check if it works by clicking it.</p> <p> </p> <p>*<sub>n</sub> = row number</p>
Data from: Artificial light at night and warming impact grazing rates and gonad index of the sea urchin Centrostephanus rodgersii
<p>Artificial light at night (ALAN) is a growing threat to coastal habitats, and is likely to exacerbate the impacts of other stressors. Kelp forests are dominant habitats on temperate reefs but are declining due to ocean warming and overgrazing. We tested the independent and interactive effects of ALAN (dark vs ALAN) and warming (ambient vs warm) on grazing rates and gonad index of the sea urchin <em>Centrostephanus rodgersii. </em>Within these treatments, urchins were fed either 'fresh' kelp or 'treated' kelp. Treated kelp (<em>Ecklonia radiata</em>) was exposed to the same light and temperature combinations as urchins. We assessed photosynthetic yield, carbon and nitrogen content and C:N ratio of treated kelp to help identify potential drivers behind any effects on urchins. Grazing increased with warming and ALAN for urchins fed fresh kelp, and increased with warming for urchins fed treated kelp. Gonad index was higher in ALAN/ambient and dark/warm treatments compared to dark/ambient treatments for urchins fed fresh kelp. Kelp carbon content was higher in ALAN/ambient treatments than ALAN/warm treatments at one time point. This indicates ocean warming and ALAN may increase urchin grazing pressure on rocky reefs, an important finding for management strategies.</p>
Figure 12 in Gonadal development and fecundity of bogue Boops boops (Linnaeus, 1758) (Sparidae) on the central Algerian coast
Figure 12. Determining the size of B. boops first sexual maturity in females, males, and combined sexes.
Figure 5 in Gonadal development and fecundity of bogue Boops boops (Linnaeus, 1758) (Sparidae) on the central Algerian coast
Figure 5. Transverse sections of female gonad in Boops boops: a) general view of stage I, b) detail of stage I oocyte I and oogonia, c) early perinucleolar stage (stage II), d) previtellogenic oocyte with numerous nucleoli, e) perinucleolar stage (stage III), f) vitellogenic oocyte with yolk protein, g) early yolk granule, h) spent ovaries with yolk vesicles (stage IV), i) late yolk granule (stage V), j) zona radiata, k) stage V (postspawning), l) atretic follicles. Lo: Ovarian lumen, Ow: ovarian wall, Ovl: ovigerous leg, m: mesothelium, OoI: oocyte I, N: nucleus, Nu: nucleoli, Cy: cytoplasm, Vo: vitellogenic oocyte, V: vacuole, Y: yolk granules, FE: follicular epithelium, Oog: oogonia, Po: previtellogenic oocyte, at: atretic follicle, POF: postovulatory follicle, Cy: cytoplasm.
Figure 7 in Gonadal development and fecundity of bogue Boops boops (Linnaeus, 1758) (Sparidae) on the central Algerian coast
Figure 7. Transverse sections of intersex gonad in Boops boops: a and b) ovotestis with female dominance, c) ovotestis with equal portions, d) ovotestis with male dominance and spermatozoa in deferent duct. Oc: Oocytes, Spg: spermatogonia, Spz: spermatozoa, T: testis, O: ovary, Cyst: cyst, Mb: basal membrane of the lobule, Bv: blood vessels, Dd: deferent duct.
Figure 6 in Gonadal development and fecundity of bogue Boops boops (Linnaeus, 1758) (Sparidae) on the central Algerian coast
Figure 6. Transverse sections of male gonad in Boops boops: a) immature testes with spermatogonia cells (stage I), b) early maturation (stage II) with Masson's trichrome stain, c) late developing (stage III), d) stage III spermatic preemission, e) general view of the testis in the emission stage (stage IV), f) spermatozoa in the cyst (stage IV), g) spermatic emission with spermatozoa in the deferent duct (stage IV), h) postemission (stage V), i) Rupture of the cyst at stage V. Spg: Spermatogonia, Spcy: spermatocyte, Cyst: cyst, Spd: spermatid, Dd: deferent duct, Spz: spermatozoa, Mb: basal membrane of the lobule, L: lobular lumen.
Рис. 8. СреЗы череЗ гонады моллюска: А – поперечный среЗ череЗ гонаду самки, Б–Д – фолликулы в гонадах самок (Б, В – Зрелые ооциты круглой формы, готовые к вымету; Г – ооциты в период активного гаметогенеЗа на стадии раннего трофоплаЗматического роста, Д – ооциты каплевидной формы в период преднерестовой стадии при ЗаверШении трофоплаЗматического роста), Е, Ж – поперечные среЗы череЗ гонаду самца, З, И – ацинусы в гонадах самцов (З – преднерестоваЯ стадиЯ, просветы в ацинусах практически отсутствуют, стенки ацинусов не раЗличимы, И – нерестоваЯ стадиЯ, имеютсЯ просветы в ацинусах). МасШтабные линейки 300 мкм (А), 200 мкм (Е), 100 мкм (Ж), 50 мкм (Б–Д, З, И). вя – вакуолиЗированное Ядро, сф – стенка фолликула, вм – вителлиноваЯ мембрана, РО – раЗвиваюЩиесЯ иЗ пелликулы ооциты, пг – ресничный проток гонады, с – сперматоциты, па – просветы в ацинусах. Fig. 8. Sections through the gonads of the mollusk: А – transverse section through the female gonad, Б–Д – ovarian acini, follicles (Б, В – mature round-shaped oocytes ready to be swept out; Г – oocytes in the period of active gametogenesis at the stage of early trophoplasmatic growth, Д – tear-shaped oocytes during the pre-spawning stage at the end of trophoplasmatic growth), Е, Ж – transverse sections through the male gonads, З, И – testicular acini (З – pre-spawning stage, with practically absent gaps in the acini and invisible the acini walls, И – spawning stage, with gaps in the acini). Scale bars 300 µm (A), 200 µm (E), 100 µm (Ж), 50 µm (Б–Д, З, И). вя – vacuolated nucleus, сф – follicle wall, вм – vitelline membrane, РО – developing oocytes arising from a pellicle, пг – ciliated gonadal duct, с – spermatocytes, па – gaps in acini. in Nodularia vladivostokensis (Bivalvia: Unionidae) from Razdolnaya River (Primorye, Russia)
Рис. 8. СреЗы череЗ гонады моллюска: А – поперечный среЗ череЗ гонаду самки, Б–Д – фолликулы в гонадах самок (Б, В – Зрелые ооциты круглой формы, готовые к вымету; Г – ооциты в период активного гаметогенеЗа на стадии раннего трофоплаЗматического роста, Д – ооциты каплевидной формы в период преднерестовой стадии при ЗаверШении трофоплаЗматического роста), Е, Ж – поперечные среЗы череЗ гонаду самца, З, И – ацинусы в гонадах самцов (З – преднерестоваЯ стадиЯ, просветы в ацинусах практически отсутствуют, стенки ацинусов не раЗличимы, И – нерестоваЯ стадиЯ, имеютсЯ просветы в ацинусах). МасШтабные линейки 300 мкм (А), 200 мкм (Е), 100 мкм (Ж), 50 мкм (Б–Д, З, И). вя – вакуолиЗированное Ядро, сф – стенка фолликула, вм – вителлиноваЯ мембрана, РО – раЗвиваюЩиесЯ иЗ пелликулы ооциты, пг – ресничный проток гонады, с – сперматоциты, па – просветы в ацинусах. Fig. 8. Sections through the gonads of the mollusk: А – transverse section through the female gonad, Б–Д – ovarian acini, follicles (Б, В – mature round-shaped oocytes ready to be swept out; Г – oocytes in the period of active gametogenesis at the stage of early trophoplasmatic growth, Д – tear-shaped oocytes during the pre-spawning stage at the end of trophoplasmatic growth), Е, Ж – transverse sections through the male gonads, З, И – testicular acini (З – pre-spawning stage, with practically absent gaps in the acini and invisible the acini walls, И – spawning stage, with gaps in the acini). Scale bars 300 µm (A), 200 µm (E), 100 µm (Ж), 50 µm (Б–Д, З, И). вя – vacuolated nucleus, сф – follicle wall, вм – vitelline membrane, РО – developing oocytes arising from a pellicle, пг – ciliated gonadal duct, с – spermatocytes, па – gaps in acini.
Figure 3 in Postembryonic Ventral Nerve Cord Development and Gonad Migration in Steinernema carpocapsae
Figure 3: Lateral left view (anterior to left) differential interference contrast (DIC) micrograph (top) and with transparent color overlay (bottom) of a 96 HET female Steinernema carpocapsae gonad posterior arm. The gonad morphology at 96 HET is similar to that seen at 72 HET. However, by 96 HET, numerous fertilized embryos are seen in the uterus (red). The spermathecal-uterine complex (green) is located at the farthest point away from the mid-body and contains a single oocyte (inset) surrounded by numerous sperm (arrowhead). The ovary (blue) is much longer than in 72 HET females, frequently extending beyond the mid-body plane. In this image, the distal tip cell of the anterior gonad arm (arrow) extends into the posterior half of the female. Scale bars, 50 µm (main figure) 10 µm (inset).
Figure 6 in Postembryonic Ventral Nerve Cord Development and Gonad Migration in Steinernema carpocapsae
Figure 6: Lateral right (A) and left (B) views of gonad (red) morphology in male Steinernema carpocapsae at 72 HET. In most males (A), the gonad migration pattern is similar to C. elegans. However, 30% of males examined have a gonad that never extends away from the ventral wall (B). Scale bar, 50 µm.
Figure 5 in Postembryonic Ventral Nerve Cord Development and Gonad Migration in Steinernema carpocapsae
Figure 5: Lateral left views (anterior to left) of female gonad (red overlay) development in Steinernema carpocapsae at various time points. The gonad of newly hatched S. carpocapsae (A) contained four nuclei with two central larger nuclei and two smaller cap nuclei. By 25 HET (B), the number of nuclei in the gonad noticeably increased and began elongating along the ventral body wall. At 33 HET (C), the gonad extended toward the dorsal surface. Between 44 HET (D) and 54 HET (E), we observed an expansion of the gonad along the dorsal surface. Note that the anterior arm typically wraps around the right side of the intestine and is out of frame at this focal plane, whereas the posterior arm wraps around the left side. Scale bar, 50 µm.
Figure 1 in Postembryonic Ventral Nerve Cord Development and Gonad Migration in Steinernema carpocapsae
Figure 1: Lateral left view (anterior to left) fluorescent micrographs of J2 (top) and J1 (bottom) Steinernema carpocapsae following 4′, 6-diamidino2-phenylindole (DAPI) staining. The ventral nerve cord (VNC) comprises a series of putative neurons extending from the retrovesicular ganglion (RVG) (arrowhead) to the preanal ganglion (PAG) (arrow) along the ventral edge of the animal. Between J1 and J2, there is a large increase in the number of VNC neuronal-like nuclei. Scale bar, 10 µm.
Figure 2 in Postembryonic Ventral Nerve Cord Development and Gonad Migration in Steinernema carpocapsae
Figure 2: Cartoons of Caenorhabditis elegans (A) and Steinernema carpocapsae (B) gonads and lateral left view (anterior to left) micrograph of posterior S. carpocapsae gonad arm (C): differential interference contrast (DIC) alone (top); DIC color overlay (bottom). Unlike C. elegans, which undergoes stereotypical development to a 'U-shaped' gonad, the most common S. carpocapsae gonad shape does not include extensive migration along the ventral wall. As shown in the stitched DIC micrograph (C) (top) and with transparent color overlay (bottom), the gonad extends from the central region of the animal near the vulva (position indicated with straight arrow) and immediately extends to the dorsal side where it extends away from the mid-body. It eventually makes a u-turn (curved arrow) and then extends along the dorsal wall back to the midbody where it then migrates back to the ventral wall. The posterior gonad arm typically wraps around the left side of the intestine, whereas the anterior arm typically wraps around the right side of the intestine. The proximal end of the gonad, including the uterus and spermathecal-uterine complex, is colored red. The distal end of the gonad following the turn includes the ovary and is colored blue. Scale bar, 50 µm.
Figure 4 in Postembryonic Ventral Nerve Cord Development and Gonad Migration in Steinernema carpocapsae
Figure 4: Cartoon depicting the variability in the gonad migration pattern among 72 HET Steinernema carpocapsae females that deviate from the most common phenotype seen in figure 2C. Numbers indicate the ratio of the particular gonad phenotype among the 28 females whose gonads were fully traced.
Figure 1 in Impact of parasitism by nematodes on gonadal anatomy of Pagellus erythrinus (L.)
Figure 1. – Pathological effect observed macroscopically on the examined teleost fish of P. erythrinus. A-E: Ovaries of Pagellus erythrinus infested by the nematodes Philometra filiformis; P. filiformis was found inside the ovaries; F: P. filiformis external form. o: ovaries, white arrow: P. filiformis. Scale bars: A, B, D, E = 1 cm; C = 0.5 cm; F = 0.10 cm.
Fig. 5 in Fig. 7 in Reproduction of the Blue Jack Mackerel, , in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns.
Fig. 5. Mean (± standard error) gonadosomatic index (GSI), hepatosomatic index (HSI), and relative condition (Kn) for blue jack mackerel (Trachurus picturatus) females off the western coast of Portugal by maturation phase and abnormal condition. I, immature; D, developing; SC, spawning capable; AS, actively spawning; RS, regressing; RN, regenerating; CS, reproductive inactive ovaries with cystic structures; MA, spawning capable individuals with massive atresia; K, Kudoa spp.-infected ovaries. Sample size for each group is given between brackets in the x-axis.
Fig. 4 in Fig. 7 in Reproduction of the Blue Jack Mackerel, , in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns.
Fig. 4. Histological sections of ovaries of blue jack mackerel (Trachurus picturatus) with abnormalities: a) reproductive inactive ovaries with cystic structures with only PG and early SG oocytes (female with 38.1 cm TL, caught in the first half of January); b) reproductive inactive ovaries with massive cystic structures with only a few PG oocytes remaining (female with 26.2 cm TL, caught in the first half of March); c) spawning capable individuals with massive atresia (female with 25.8 cm TL, caught in second half of February); d) Kudoa spp.-infected ovary (female with 25.5 cm TL, caught on the first half of March); e) actively spawning (female with 31.1 cm TL, caught on the second half of March); f) regressing female with massive atresia (female with 27.3 cm TL, caught in April). *, Kudoa spp. infection; AVTG, advance vitellogenic oocytes; At, atresia; AtSt, atretic structures; CA, cortical alveoli oocytes; EVTG, early vitellogenic oocytes; H, hydrated oocytes; PG, primary growth oocytes.
Fig. 3 in Fig. 7 in Reproduction of the Blue Jack Mackerel, , in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns.
Fig. 3. Mean (± standard error) gonadosomatic index (GSI), hepatosomatic index (HSI), and relative condition (Kn) for blue jack mackerel (Trachurus picturatus) females (black dots) and males (open triangles) off the western coast of Portugal by sampling date. Sea surface temperature (SST, grey shadow). 1st half, month first fortnight; 2nd half, month second fortnight.
Fig. 7 in Fig. 7 in Reproduction of the Blue Jack Mackerel, , in Western Portugal: Microscopic Gonad Analysis Reveals Indeterminate Fecundity and Skipped Spawning Patterns.
Fig. 7. Relationships between batch fecundity and total length (TL) and eviscerated weight (EW) for blue jack mackerel (Trachurus picturatus) females caught off the western coast of Portugal.
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Annotated Behaviour and Observability Dataset (ABODe)
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