scholarly journals Sound Production (Bioacoustic) and Behaviour of Male Fish-Black Tilapia (Oreochromis mossambicus) Against Salinity Changes

2016 ◽  
Vol 4 (3) ◽  
Author(s):  
Pujiyati S ◽  
Hestirianoto T
Keyword(s):  
Sound Production ◽  
Oreochromis Mossambicus ◽  
Male Fish ◽  
Salinity Changes

Cellular distributions of creatine kinase in branchia of euryhaline tilapia (Oreochromis mossambicus)

2003 ◽  
Vol 284 (1) ◽  
pp. C233-C241 ◽  
Author(s):  
Li-Yih Lin ◽  
Chia-Chang Chiang ◽  
Hong-Yi Gong ◽  
Ching-Yi Cheng ◽  
Pung-Pung Hwang ◽  
...  
Keyword(s):  
Creatine Kinase ◽  
Cellular Localization ◽  
Potential Role ◽  
Oreochromis Mossambicus ◽  
Staining Intensity ◽  
Muscle Type ◽  
Environmental Fluctuation ◽  
High Association ◽  
Salinity Changes

Although euryhaline teleosts can adapt to environmental fluctuation of salinity, their energy source for responding to changes in salinity and osmolarity remains unclear. This study examines the cellular localization of creatine kinase (CK) expression in branchia of tilapia ( Oreochromis mossambicus). Western blot analysis of muscle-type CK (MM form) revealed a high association with salinity changes, but BB and MB forms of CK in the gills of fish adapted to seawater did not change. With the use of immunocytochemistry, three CK isoforms (MM, MB, and BB) were localized in mitochondria-rich (MR) cells and other epithelial cells of tilapia gills. In addition, staining intensity of MM-form CK in MR cells increased after seawater transfer, whereas BB and MB forms did not significantly change. To our knowledge, this work presents the first evidence of CK expression in MR cells of tilapia gills, highlighting the potential role of CK in providing energy for ion transport.

Acute Changes in Gill Na+‐K+‐ATPase and Creatine Kinase in Response to Salinity Changes in the Euryhaline Teleost, Tilapia (Oreochromis mossambicus)

2002 ◽  
Vol 75 (1) ◽  
pp. 29-36 ◽  
Author(s):  
Ching‐Feng Weng ◽  
Chia‐Chang Chiang ◽  
Hong‐Yi Gong ◽  
Mark Hung‐Chih Chen ◽  
Cliff Ji‐Fan Lin ◽  
...  
Keyword(s):  
Creatine Kinase ◽  
Oreochromis Mossambicus ◽  
Salinity Changes ◽  
Euryhaline Teleost ◽  
Acute Changes

scholarly journals VARIASI MORFOMETRIK IKAN MUJAIR (Oreochromis mossambicus) PADA EKOSISTEM RAWA (LENTIK WATER) DI WILAYAH PRAFI, MASNI DAN SIDEY, KABUPATEN MANOKWARI

2020 ◽  
Vol 2 (2) ◽  
pp. 58-66
Author(s):  
Sigit Prafiadi ◽  
Enik Maturahmah
Keyword(s):  
Morphological Characteristics ◽  
Oreochromis Mossambicus ◽  
The Other ◽  
Morphological Data ◽  
Natural Food ◽  
Morphometric Measurements ◽  
Male Fish ◽  
Significant Difference ◽  
Measurement Results ◽  
Local Species

This study aims to determine the pattern of breeding, adaptability to the environment and feeding processes in tilapia fish Oreochromis mossambicus through morphological data, morphological data obtained through morphometric measurements that can be used to formulate the extent of the threat to local species because tilapia is an invasive fish species with morphological data. Fairly high reproduction in freshwater waters. The location of this research is swamp waters in Manokwari Regency, namely Prafi, Masni and Sidey Regions. Morphometric measurements using 14 standards. Morphometric measurement results of male fish showed that the width of the tail fin (CFW) there was a significant difference in the width of the tail fin (CFL) between the tilapia fish in the Prafi swamp with the other two marshes, the width of the tilapia fish tail fins in the Masni and Sidey swamps did not differ significantly. In female fish measurements (DFL) showed that there were significant differences while the CFW measurements contained in the Prafi swamp were different from the other two marshes. The results of the morphometric measurements show how the morphological characteristics of tilapia fish will have an impact on local fish and the amount of natural food in the Swamp.

SEM and TEM observations of sperm development in the testis of the freshwater fish Oreochromis mossambicus

1990 ◽  
Vol 48 (3) ◽  
pp. 58-59
Author(s):  
Daryl A. Cornish ◽  
George L. Smit
Keyword(s):  
Morphological Characteristics ◽  
Oreochromis Mossambicus ◽  
Breeding Cycle ◽  
Limited Information ◽  
North West ◽  
The North ◽  
Sem And Tem ◽  
Sperm Development ◽  
Ultrastructural Characteristics ◽  
The University

Oreochromis mossambicus is currently receiving much attention as a candidater species for aquaculture programs within Southern Africa. This has stimulated interest in its breeding cycle as well as the morphological characteristics of the gonads. Limited information is available on SEM and TEM observations of the male gonads. It is known that the testis of O. mossambicus is a paired, intra-abdominal structure of the lobular type, although further details of its characteristics are not known. Current investigations have shown that spermatids reach full maturity some two months after the female becomes gravid. Throughout the year, the testes contain spermatids at various stages of development although spermiogenesis appears to be maximal during November when spawning occurs. This paper describes the morphological and ultrastructural characteristics of the testes and spermatids.Specimens of this fish were collected at Syferkuil Dam, 8 km north- west of the University of the North over a twelve month period, sacrificed and the testes excised.

Reading Risk in Children With Speech Sound Disorder: Prevalence, Persistence, and Predictors

2020 ◽  
Vol 63 (11) ◽  
pp. 3714-3726
Author(s):  
Sherine R. Tambyraja ◽  
Kelly Farquharson ◽  
Laura Justice
Keyword(s):  
At Risk ◽  
Sound Production ◽  
Speech Therapy ◽  
Speech Sound ◽  
Reading Difficulties ◽  
School Age Children ◽  
Speech Sound Disorder ◽  
Word Decoding ◽  
School Year ◽  
School Based

Purpose The purpose of this study was to determine the extent to which school-age children with speech sound disorder (SSD) exhibit concomitant reading difficulties and examine the extent to which phonological processing and speech production abilities are associated with increased likelihood of reading risks. Method Data were obtained from 120 kindergarten, first-grade, and second-grade children who were in receipt of school-based speech therapy services. Children were categorized as being “at risk” for reading difficulties if standardized scores on a word decoding measure were 1 SD or more from the mean. The selected predictors of reading risk included children's rapid automatized naming ability, phonological awareness (PA), and accuracy of speech sound production. Results Descriptive results indicated that just over 25% of children receiving school-based speech therapy for an SSD exhibited concomitant deficits in word decoding and that those exhibiting risk at the beginning of the school year were likely to continue to be at risk at the end of the school year. Results from a hierarchical logistic regression suggested that, after accounting for children's age, general language abilities, and socioeconomic status, both PA and speech sound production abilities were significantly associated with the likelihood of being classified as at risk. Conclusions School-age children with SSD are at increased risk for reading difficulties that are likely to persist throughout an academic year. The severity of phonological deficits, reflected by PA and speech output, may be important indicators of subsequent reading problems.

Sound Production Treatment for Acquired Apraxia of Speech: An Examination of Dosage in Relation to Probe Performance

2020 ◽  
pp. 1-16
Author(s):  
Julie L. Wambaugh ◽  
Lydia Kallhoff ◽  
Christina Nessler
Keyword(s):  
Retrospective Analysis ◽  
Sound Production ◽  
Apraxia Of Speech ◽  
Practice Schedule ◽  
Practice Schedules ◽  
Baseline Performance ◽  
The Mean ◽  
Number Of Treatment ◽  
The Impact

Purpose This study was designed to examine the association of dosage and effects of Sound Production Treatment (SPT) for acquired apraxia of speech. Method Treatment logs and probe data from 20 speakers with apraxia of speech and aphasia were submitted to a retrospective analysis. The number of treatment sessions and teaching episodes was examined relative to (a) change in articulation accuracy above baseline performance, (b) mastery of production, and (c) maintenance. The impact of practice schedule (SPT-Blocked vs. SPT-Random) was also examined. Results The average number of treatment sessions conducted prior to change was 5.4 for SPT-Blocked and 3.9 for SPT-Random. The mean number of teaching episodes preceding change was 334 for SPT-Blocked and 179 for SPT-Random. Mastery occurred within an average of 13.7 sessions (1,252 teaching episodes) and 12.4 sessions (1,082 teaching episodes) for SPT-Blocked and SPT-Random, respectively. Comparisons of dosage metric values across practice schedules did not reveal substantial differences. Significant negative correlations were found between follow-up probe performance and the dosage metrics. Conclusions Only a few treatment sessions were needed to achieve initial positive changes in articulation, with mastery occurring within 12–14 sessions for the majority of participants. Earlier occurrence of change or mastery was associated with better follow-up performance. Supplemental Material https://doi.org/10.23641/asha.12592190

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