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A new species of Freshwater Prawn, Macrobrachium Johnsoni spec. nov. (Decapoda: Caridea: Palaemonidae) from Peninsular Malaysia, and a description of its First Zoea Naturalis
Chong, S.S.C.; Khoo, H.W..
A new species of freshwater prawn of the family Palaemonidae, Macrobrachium johnsoni spec. nov., is described from southern Peninsular Malaysia. Notes on live colouration, habitat, and larval development are provided. The first zoea of this new species is also described in detail. A comparison is made between M. johnsoni and a closely related species, M. pilimanus (De Man, 1879).
Tipo: Article / Letter to the editor Palavras-chave: Decapoda; Caridea; Palaemonidae; Macrobrachium; New species; Peninsular Malaysia; Larval development; 42.74.
Ano: 1987 URL: http://www.repository.naturalis.nl/record/318094
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A note on the population genetic consequences of delayed larval development in insects Genet. Mol. Biol.
Salles,Marcos Mattoso de; Otto,Paulo A..
Observations by Dobzhansky's group in the 1940s suggesting that the presence of recessive genotypes could account for lower larval developmental rates in Drosophila melanogaster were not confirmed at the time and all subsequent investigations on this subject focused on the analysis of ecological models based on competition among pre-adult individuals. However, a paper published in this journal in 1991 eventually confirmed the finding made by Dobzhansky and his co-workers. In this report, we provide a theoretical analysis of the population genetic effects of a delay in the rate of larval development produced by such a genetic mechanism.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Difference and differential equations; Drosophila; Dynamic systems; Larval development; Population genetics.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572013000300019
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Adult acclimation to combined temperature and pH stressors significantly enhances reproductive outcomes compared to short-term exposures ArchiMer
Suckling, Coleen C.; Clark, Melody S.; Richard, Joelle; Morley, Simon A.; Thorne, Michael A. S.; Harper, Elizabeth M.; Peck, Lloyd S..
This study examined the effects of long-term culture under altered conditions on the Antarctic sea urchin, Sterechinus neumayeri.Sterechinus neumayeri was cultured under the combined environmental stressors of lowered pH (-03 and -05 pH units) and increased temperature (+2 degrees C) for 2years. This time-scale covered two full reproductive cycles in this species and analyses included studies on both adult metabolism and larval development. Adults took at least 6-8months to acclimate to the altered conditions, but beyond this, there was no detectable effect of temperature or pH. Animals were spawned after 6 and 17months exposure to altered conditions, with markedly different outcomes. At 6months, the percentage hatching and larval survival rates were...
Tipo: Text Palavras-chave: CO2; Echinoderm; Gonad maturation; Larval development; Oxygen consumption; Vitellogenesis.
Ano: 2015 URL: https://archimer.ifremer.fr/doc/00617/72874/71930.pdf
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Allometric growth patterns and development in larvae and juveniles of thick-lipped grey mullet Chelon labrosus reared in mesocosm conditions ArchiMer
Ben Khemis, Ines; Gisbert, Enric; Alcaraz, Carles; Zouiten, Dora; Besbes, Raouf; Zouiten, Amina; Masmoudi, Ahmed Slaheddine; Cahu, Chantal.
Allometric growth and ontogeny were studied in thick-lipped grey mullet Chelon labrosus reared in mesocosms from 1 to 71 day post hatching (dph). Multivariate allometric analysis of morphometric growth distinguished three distinct developmental stanzas separated by two morphometric metamorphosis lengths (L-m1=4.46 +/- 0.06mm; L-m2= 28.56 +/- 1.04mm). Body mass growth also showed three distinct episodes separated by two inflections, correlated with morpho-functional changes. First episode concerned pre-flexion larvae and ended around 4.5mm-L-T (14-dph), coinciding with estimated L-m1. It was distinguished by reduced growth, but intense morphogenesis and differentiation processes. Organogenesis and allometric changes indicated that development priorities...
Tipo: Text Palavras-chave: Thick-lipped grey mullet; Chelon labrosus; Larval development; Allometric growth; Mesocosm.
Ano: 2013 URL: http://archimer.ifremer.fr/doc/00166/27742/26425.pdf
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Allometric larval growth of the bottom-dwelling catfish Lophiosilurus alexandri Steindachner, 1876 (Siluriformes: Pseudopimelodidae) Neotropical Ichthyology
Mello,Gabriel Caetano Guimarães de; Santos,José Enemir dos; Guimarães-Cruz,Rodrigo José; Godinho,Alexandre Lima; Godinho,Hugo Pereira.
ABSTRACT We investigated the early life growth pattern of pacamã, Lophiosilurus alexandri , a catfish endemic to the rio São Francisco basin, Brazil. Pacamã larvae were kept in a galvanized trough for 29 days after hatching. We collected approximately 10 larvae daily (total number = 285). We obtained from each specimen the total length (independent variable) and 11 other body measurements (dependent variables). We performed linear regressions on the log-transformed data to determine the growth pattern of the body measurements and the respective inflexion point on the growth curves. Except for trunk length, trunk width and yolk sac volume, the remaining body measurements showed a positive allometric growth coefficient up to the respective IP followed by a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Early life; Fish rearing; Larval development; Pacamã; Rio São Francisco.
Ano: 2015 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252015000400677
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Analysis of nucleus activity in malpighian tubules of Diatraea saccharalis (Fabricius) (Lepidoptera: Crambidae) larvae by critical electrolyte concentration Neotropical Entomology
Fermino,Fábio; Conte,Hélio; Falco,José R P.
Diatraea saccharalis (Fabricius) has cryptonephridial type Malphigian tubules (MT). This type of MT is characterized by the penetration of the distal part of the MT into the external walls of the rectum, which is usually lined with a perinephral membrane. The MT is divided into three differentiated regions: proximal, middle and distal. In this study, our objective was to compare the nuclear activities of each one of the three regions of the D. saccharalis MT by using a nuclear basophilic technique and critical electrolyte concentration with a toluidine blue stain at pH 4.0. This method allows differentiation of DNA/protein complexes in in situ and in vitro chromatin. MT chromatin structure in D. saccharalis is variable. Fifth instars have a more...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cytochemistry; Larval development; Cryptonephridial system.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1519-566X2010000400016
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Aspectos morfológicos, reproductivos y desarrollo larval de Prionospio patagonica (Augener, 1923) y Prionospio orensanzi (Blake, 1983), (Polychaeta:Spionidae), presentes en el sur de Chile OceanDocs
Díaz Jaramillo, M.J..
Se describe los principales aspectos morfológicos, reproductivos y de desarrollo larval de dos especies del género Prionospio, a partir de material colectado en la bahía de Corral y estuario del río Valdivia. Prionospio patagonica es un habitante común de fondos blandos, observándose principalmente al interior de los estuarios del Pacífico suroriental. A diferencia de descripciones morfológicas anteriores, esta especie presenta dos pares de ojos y no se observa una capa interna en sus ganchos encapuchados. La madurez sexual de estas especies, se produce a partir de los primeros meses de primavera, en donde se pueden encontrar hembras y machos con segmentos gametogénicos, aproximadamente a partir de individuos con más de 50 segmentos. Los gametos se...
Tipo: Theses and Dissertations Palavras-chave: Larval development; Marine invertebrates; Reproduction; Animal morphology.
Ano: 2004 URL: http://hdl.handle.net/1834/4915
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Associação entre larvas de Chrysomya megacephala (Fabricius) e Chrysomya albiceps (Wiedemann), Chrysomya megacephala (Fabricius) e Cochliomyia macellaria (Fabricius) (Calliphoridae, Diptera) sob condições de laboratório Zoologia
Aguiar-Coelho,Valéria Magalhães; Milward-de-Azevedo,Eliane M.V.
This paper intends to recognize some aspects of interspecific relationships between Chrysomya megacephala (Fabricius) and C. albiceps (Wiedemann) and between C. megacephala and Cochliomyia macellaria (Fabricius) larvae in laboratory. A diet consisting of decomposing horse flesh was used, and the relation of 1 larva/g diet was established. The development of the two species was done in pure and associated cultures. The association with Chrysomya albiceps influenced the post-embrionary development period and the weight of mature larvae of the C. megacephala, reducing their. Such weight decrease, along with the predation of larvae of C. megacephala larvae, yelded a decrease in survival in all of the stages. Larvae of this species showed an increase in its...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chrysomya; Cochliomyia macellaria; Blowfly; Interspecific relationship; Larval development.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000400026
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Associações entre larvas de Cochliomyia macellaria (Fabricius) e Chrysomya albiceps (Wiedemann) (Diptera, Calliphoridae) em condições experimentais Zoologia
Aguiar-Coelho,Valéria M; Queiroz,Margareth M.C; Milward-de-Azevedo,Eliane M.V.
This paper has the purpose of studying the interspecif relationships of larvae of Cochliomyia macellaria (Fabricius) and Chrysomya albiceps (Wiedemann) in laboratory. The experiments were conducted on climatized chamber set at 30ºC, 60+10% UR and 14h photophase. The relation of 1 larva/g diet was established. The association influence of post-embrionary development duration of both species. The association with Chrysomya albiceps influenced the weight of mature larvae of Cochliomyiia macellaria. reducing it significantly. Such weight decrease, along with the predation of larvae of C. macellaria larvae, yielded a decrease in survival in all of the stages.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Blowfly; Interspecific relationship; Larval development; Predation.
Ano: 1995 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751995000400025
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Biologia da mosca-das-frutas sul-americana em frutos de mirtilo, amoreira-preta, araçazeiro e pitangueira. Repositório Alice
BISOGNIN, M.; NAVA, D. E.; LISBÔA, H.; BISOGNIN, A. Z.; GARCIA, M. S.; VALGAS, R. A.; DIEZ-RODRÍGUEZ, G. I.; BOTTON, M.; ANTUNES, L. E. C..
2013
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Anastrepha fraterculus; Rubus; Vaccinium ashei; Larval development; Native fruits; Berries.
Ano: 2013 URL: http://www.alice.cnptia.embrapa.br/handle/doc/956786
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Biología reproductiva de algunas especies de la tribu Thenaria (Cnidaria: Anthozoa) en el litoral marplatense OceanDocs
Excoffon, A.C..
Universidad Nacional de Mar del Plata, Facultad de Ciencias Exactas y Naturales (Argentina).
Tipo: Theses and Dissertations Palavras-chave: Sexual reproduction; Asexual reproduction; Gametogenesis; Reproductive cycle; Embryonic development; Larval development; Comparative studies; Asexual reproduction; Gametogenesis; Embryonic development; Sexual reproduction; Http://aims.fao.org/aos/agrovoc/c_664; Http://aims.fao.org/aos/agrovoc/c_27931; Http://aims.fao.org/aos/agrovoc/c_2545; Http://aims.fao.org/aos/agrovoc/c_26876.
Ano: 1993 URL: http://hdl.handle.net/1834/2957
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Cambios fisiológicos y bioquímicos durante el desarrollo temprano de Lithodes santolla (Molina, 1782) (Decapoda: Lithodidae) y Petrolisthes laevigatus (Guérin, 1835) (Decapoda: Porcellanidae): una comparación dentro del infraorden Anomura OceanDocs
Surot Navarro, E.A..
El desarrollo embrionario y larval corresponden a fases importantes dentro del ciclo de vida de invertebrados marinos. Estudios relacionados al desarrollo embrionario de crustáceos son escasos y se enfocan principalmente en fecundidad, volumen y rendimiento reproductivo. La fisiología y bioquímica larval se ha estudiado con un poco más de detalle, aunque, el conocimiento de estas fases aún es escaso. El presente estudio analiza el desarrollo temprano de Lithodes santolla (Molina, 1782) y Petrolisthes laevigatus (Guérin, 1835) en términos de la fisiología y bioquímica durante el desarrollo, comparando ambas especies respecto al modo de desarrollo presente, planctotrofía (P. laevigatus) y lecitotrofía (L. santolla). Durante el desarrollo temprano se...
Tipo: Theses and Dissertations Palavras-chave: Marine invertebrates; Larval development; Embryonic development.
Ano: 2006 URL: http://hdl.handle.net/1834/4918
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Contribution à l'étude de la crevette rose Palaemon serratus (Pennant) : Exploitation, Biologie, Elevage, Epidémiologie ArchiMer
Campillo, Albert.
This these is the result of several years of investigations conducted on the common prawn Palaemon serratus in the Roscoff (northern Brittany) and Yeu (bay of Biscay) sectors of the French Atlantic coast. Following a description of the fishery and fishing strategies, it deals with the species biological aspects, focusing on growth, lifespan, sex-ratio and breeding. Hypotheses on the reasons for apparent variations in interannual abundance are drawn up and compared with field observations. The second part is devoted to production experiments in a controlled environment (hatchery), explaining how larvae are obtained and their development and survival with respect to food, density and physical parameters like salinity and temperature. The link between...
Tipo: Text Palavras-chave: Shrimp farm; Larval development; Sex ratio; Breeding; Growth; Fishery; Palaemon serratus; Common prawn; Elevage; Développement larvaire; Sex ratio; Reproduction; Croissance; Pêche; Palaemon serratus; Crevette rose.
Ano: 1979 URL: http://archimer.ifremer.fr/doc/1979/these-1196.pdf
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Contribution a l'etude de l'elevage de la crevette rose Palaemon serratus (Pennant) en captivite. ArchiMer
Campillo, Albert.
The growth of post-larval P. serratus has been studied until the appearance of secondary sexual characters, in order to eliminate the influence of sex ratio on the mean wt. The influence of temp on intermolt period and number of molts was observed in male and female kept individually. Different sorts of food of natural origin have been tested. The rearing of post-larval lots metamorphosed at different times of the yr showed that the growth of P. serratus is conditioned not only by the temp, but also by the season. The food conversion ratio was defined in relation to the sex and age of the prawns. Shelters allowed the author to obtain a ratio of survival which varied post-larvae per square meter. The sex ratio established from several breedings as soon as...
Tipo: Text Palavras-chave: Phaeodactylum tricornutum; Tetraselmis suecica; Artemia; Palaemon serratus; Crustacean culture; Larval development; Larvae; Induced breeding; Hatching; Controlled conditions; Laboratory culture; Rearing.
Ano: 1975 URL: http://archimer.ifremer.fr/doc/1975/publication-2027.pdf
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Cross effects of the strain of dietary Saccharomyces cerevisiae and rearing conditions on the onset of intestinal microbiota and digestive enzymes in rainbow trout, Onchorhynchus mykiss, fry ArchiMer
Wache, Yann; Auffray, Francoise; Gatesoupe, Joel; Zambonino, Jose-luis; Gayet, Vincent; Labbe, Laurent; Quentel, C.
Two strains of Saccharomyces cerevisiae were tested as probiotics for rainbow trout fry, during the first month of feeding. Each strain was introduced into separate diets, at the rate of 106 CFU g− 1 and their effects were compared with those of a control diet. Two rearing conditions were simultaneously compared, to test the adaptability of the probiotic treatment. From start feeding onwards, the water supply came from either spring or river, resulting in two different temperature ranges, 11¿11.5 and 7¿8 °C respectively. Growth and development were optimal in spring water, while some delay was observed with colder river water. A slight but significant increase in mortality was also observed in the river group. In all groups, the counts of...
Tipo: Text Palavras-chave: Debaryomyces hansenii; Yeast; Brush border membrane; Gut maturation; Larval development; Start feeding.
Ano: 2006 URL: http://archimer.ifremer.fr/doc/2006/publication-1816.pdf
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Descripción de las larvas del camarón azul Penaeus stylirostris Stimpson OceanDocs
Prahl, H. von; Gardeazábal, M..
Hembras grávidas del camarón azul Penaeus stylirostris, capturadas en la naturaleza, fueron colocadas en acuario? de 50 litros de capacidad, para que desovaran. Efectuada la ovoposición se retiraron las hembras adultas y se inició la observación biológica. Cada etapa del estado larval fue cuidadosamente estudiada, descrita y dibujada, con el fín de obtener el máximo de información.
Tipo: Journal Contribution Palavras-chave: Carcinology; Larval development.
Ano: 1977 URL: http://hdl.handle.net/1834/3904
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Description of Atherinella brasiliensis (Quoy & Gaimard, 1825) (Atheriniformes: Atherinopsidae) larvae from the Jaguaribe River estuary, Itamaracá island, Northeastern Brazil Neotropical Ichthyology
França,Elton J.; Severi,William; Castro,Maviael F.; Medeiros,Tatiane N.; El-Deir,Ana Carla A..
The present study describes the external morphology and morphometry of the initial development of Atherinella brasiliensis, and contributes toward broadening knowledge on its biology. A total of 88 larvae and 14 juveniles were used to characterize the morphological development and analyze body proportions. Fish with standard lengths (SL) from 1.4 to 77 mm were used in the study. Larvae hatch at an average of 1.4 mm SL. In the preflexion stage, the larval body is enveloped by a finfold, which begins behind the head. Pectoral fins are the first to be formed and preflexion larvae have four characteristic dendritic chromatophores on the head. The flexion stage begins at an average of 4.4 mm SL; dorsal and anal fins already exhibit pterygiophores and a...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Silverside; Larval development; Early juvenile; Ontogeny.
Ano: 2007 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252007000300016
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Desenvolvimento inicial de larvas de Rhaphiodon vulpinus Agassiz (Characiformes, Cynodontidae) Zoologia
Sousa,Wilson Treger Zydowicz de; Severi,William.
The cynodontid fish Rhaphiodon vulpinus Agassiz, 1829, known as "peixe-cachorro", is the only species of the family oceurring in the Pantanal of Mato Grosso. The initial development of its larvae was characterized, based on material collected with a 500 µm mesh size plankton-net, in several biotopes of the Pantanal of Barão de Melgaço, State of Mato Grosso, Central Brazil. The analysis was carried out with 72 larvae with standard length (SL) between 4.7 and 13.8 mm. The morphometric measurements varied positively with standard length, and body proportions ranged 8.1-17.8% for head length (HL), 6.2-10.1% for body height, and 63.673.5%, 16.8-21.6%, and 61.8-78.2% SL, respectively for pre-dorsal, pre-pectoral and pre-anal distances. The eye diameter varied...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Cynodontidae; Rhaphiodon vulpinus; Larval development; Ontogeny; Morphometrics.
Ano: 2002 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752002000100006
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Desenvolvimento larval de Chasmagnathus granulata Dana (Crustacea, Decapoda, Grapsidae), em laboratório: I. estudo da morfologia de cerdas nas fases de zoea e megalopa e das variações dos padrões corporais da fase de megalopa Zoologia
Rieger,Paulo Juarez; Santos,Ana Lucia F..
The study of Chasmagnathus granulata Dana 1851 was done with the setae morphology point of view. The main objective of this description was to find differents kinds of morphologicals types of setae. During this work anomalous structures were found in megalopal phase, such as: many kinds of rostral and lateral spines, as well as many kinds of spines on the telson and one kind of dorsal spine which never was cited before in the literature concerning to this specie.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crustacea; Decapoda; Grapsidae; Larval development; Morphology.
Ano: 2001 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752001000400023
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Desenvolvimento larval de Cyrtograpsus angulatus Dana (Crustacea, Decapoda, Grapsidae) em laboratório Zoologia
Rieger,Paulo Juarez; Vieira,Rony Roberto Ramos.
The larval development of Cyrtograpsus angulatus Dana, 1851 was studied in laboratory through eggs hatched from ovigerous females collected in mole of Rio Grande, Rio Grande, State of Rio Grande do Sul, Brazil. Three experiments (A, B, C) were carried out involving 250 larvae, derived from three ovigerous females. The experiments A and B, were carried in a climatically box with temperature among 22 and 25ºC, and salinity among 32 and 34‰. The experiment C in a room without controlled temperature, in a constant salinity of 30‰. The larvae were maintained individually and food consisted of rotifers Brachionus plicatillis Müller, 1786 and microscope algae Tetraselmis sp. The development of C. angulatus Dana, 1851 comprises five stages of zoea and one...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Crustacea; Decapoda; Grapsidae; Cyrtogropsus angulatus; Larval development.
Ano: 1997 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81751997000300011
Registros recuperados: 82
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