scholarly journals Histological Study of Mudskipper (Periophthalmus gracilis) Gills

2019 ◽  
Vol 2 ◽  
pp. 177-179
Author(s):  
Hikmah Supriyati ◽  
Nurul Safitri Apriliani ◽  
Muhammad Ja’far Luthfi

Mudskipper belongs to the Gobiidae family which has respiratory adaptation to fits their habitat. Mudskipper has a different gill structure or modification of gills, this different structure allows the mudskipper to survive for a long time outside water. This study aimed to determine the histology of gills and find out whether there is a modification of gills in the mudskipper respiratory organs (Periophthalmus gracilis). Histological preparations were done using paraffin method, stained with Hematoxylin-Eosin. Data analysis was carried out in a qualitative descriptive. The results showed that there is no additional respiratory organ in the mudskipper respiration, whereas the gills have some modifications. The histological structure of mudskipper gills consists of gill arches, arteries, gill filament, primary lamellae, and secondary lamellae. The gills of mudskipper have a different structure from the general fish, which has a thick secondary lamellae with a low amount of density, the shape of the filament are short and bent. This gill structure is a form of adaptation to habitat and behavior to live outside the water in a relatively long time.

Author(s):  
Hamny Hamny ◽  
Muhammad Iqbal ◽  
Sri Wahyuni ◽  
Mustafa Sabri ◽  
M. Jalaluddin ◽  
...  

The aim of this research was to determine the anatomy and histology of pancreas of water monitor lizard (Varanus salvator). Two pancreas were used in this research (a male and a female). Water monitor lizard was euthanized using chloroform and subsequently necropsied to collect the pancreas. The pancreas was washed in 0.9 % NaCl solution. Anatomical observations were carried out including location, shape, and color of pancreas, also the length and weight measurements. Then, pancreas was fixed with 4% paraformaldehyde for 7 days to proceed to histological preparation and hematoxylin eosin (HE) staining. The results of the anatomical observations showed that pancreas of water monitor lizard have two lobes, dorsal lobe (splenic lobe) and ventral lobe (duodenal lobe). Dorsal lobe which was in oval form adhered with the spleen, and ventral lobe was located in the cranial of intestines with the form of long spherical. Both of pancreas lobes were white-yellow color with the length of 1.45±0.64 cm (dorsal lobe) and 7.00±0.42 cm (ventral lobe). Weight of dorsal lobe was 0.15±0.01 g and ventral lobe was 6.35±2.30 g. The histological observations found the acinar cells, ducts, and blood vessels in both of pancreas lobes. Additionally, the similar structure of Langerhans islet only found at the ventral lobe of pancreas. In conclusion, pancreas of water monitor lizard consists of two lobes which located differently. Ventral lobe is larger than the dorsal lobe. Both lobes have similar histological structure except the Langerhans islets are only appeared in the ventral lobe.


2019 ◽  
Vol 8 (2) ◽  
pp. 37-40
Author(s):  
Hikmah Supriyati ◽  
Rakhmiyati Rakhmiyati ◽  
Muhammad Ja’far Luthfi

Sharks are sea water fishes belong to the class Chondrichthyes, Subclass Elasmobranchii. Sharks are cartilaginous fish that have a different osmoregulation process than any other sea water fish. Cartilaginous fish is the only vertebrate that can maintain urea. This study aims to determine the anatomical and histological structure of the kidney in the anterior, medial and posterior parts of kidney. The study was conducted by observing anatomy of the kidney. Histological preparations were made using the paraffin method. Qualitative descriptive data analysis was done. Research results show that shark kidneys consist of three parts, namely the head kidney, the body kidney, and the tail kidney. Kidney sharks are brownish red with a size of 18 cm long. Histological observations of shark kidney in the head kidney reveals many glomerulus, body kidney reveals many distal and tubule proximal contractile tubules whereas tail kidney reveals stroma that is rarely found in vertebrate kidney.


2021 ◽  
Vol 32 (2) ◽  
pp. 90
Author(s):  
Shafia Khairani ◽  
Faisal Fikri ◽  
Agus Purnomo ◽  
Muhammad Thohawi Elziyad Purnama

This study aimed to evaluate the comparative of histological figures in Clarias gariepinus and Oreochromis niloticus skin. A total of 18 samples were observed and collected the skin preservation. The hematoxylin-eosin staining performed to determine the histological structure. Results showed that there were different structures in the epidermis and dermis layer between C. gariepinus and O. niloticus skin. Club cells showed dominated in the epidermis layer of C. gariepinus. The pigmented cell showed clearly in the basement layer of C. gariepinus compared to O. niloticus. Stratum compactum in O. niloticus also showed adequate compared to C. gariepinus.


2013 ◽  
Vol 8 (11) ◽  
pp. 1112-1118
Author(s):  
Iliana Velcheva ◽  
Elenka Georgieva ◽  
Pepa Atanassova

AbstractWe investigated the influence of copper in a long-time treatment with concentrations of 0.05 mg L−1 and 0.1 mg L−1 to track the histopathological changes in gills of Carassius gibelio, and to find at what extent they will recover after the effect of the copper concentrations stops. Treatment with copper lasted 21 days and the recovery time was of the same duration. The results of histological examination showed degenerative changes (resulting in thinner secondary lamellae and filamentary epithelium), and hyperplastic and hypertrophic changes (proliferation, vasodilatation, aneurysms, epithelial interstitial edema, and fusion) in gills under the influence of two concentrations. The degenerative changes have higher prevalence at low concentrations, while hyperplastic and hypertrophic ones — at high concentrations. After the period of recovery they remained the same, but the extent of expression on the surface of gill filaments changed. The long-time copper intoxication in low concentrations of copper affects gill structure, causing severe changes whose recovery is a slow process that requires a longer period of time.


2019 ◽  
Vol 2 ◽  
pp. 181-184
Author(s):  
Nurul Safitri Apriliani ◽  
Hikmah Supriyati ◽  
Muhammad Ja’far Luthfi

Betta sp. is a freshwater ornamental fish which also known as a fighting fish. One of the fundamental organs to support fishes life is respiratory organ. Fighting fish is belongs to the suborder Anabantoidei which means labyrinth fishes group. The aim of the study was to know histology of the respiratory organs of Betta sp. Histological preparations were done using paraffin method, stained with Hematoxylin-Eosin (HE). The result showed that Betta sp. has a respiratory organ common fish i.e gills and additional respiratory organ structure namely labyrinth and pseudobranch that makes Betta sp can survive in a low volume of water. The gill is consists of gill arch, gill raker, gill fillament and gill lamellae. The labyrinth is consist of connective tissue and folded ephitelium. Pseudobranch according to some literature function as an additional respiratory. Functions attributed to the pseudobranch include; regulation of oxygen to the eyes, enzyme production for use in the gas bladder, osmoregulation, and many others.


2019 ◽  
Vol 1 (1) ◽  
pp. 1-8
Author(s):  
V Makarau ◽  
P Languju ◽  
R La Putju ◽  
P Egam

The increasing numbers of people and buildings that continue to grow and tend to be uncontrolled in the settlement causing some negative impacts one of them is the consistency of land allotment. This has resulted in some impacts such as ineffective utilities and environmental infrastructures, no mitigation system, and the unavailability of space for public spaces and other supporting facilities that supposed to be available within a settlement. Kampung Arab is one of a densely populated settlements located in the middle of business center area of Manado City, occupies the Mahakam riverbank. The limited space available in Kampung Arab has caused the settlements tend to be slummed and doesn’t have public open space as one of the residential support facilities. In addition, this settlement expands riverbanks so the functions of riverbanks become disturbed, and these settlements are often at risk of flooding. The purpose of this research is to analyze the function of Mahakam riverbanks against flood risk and to analyze the possibility of public space and pedestrian ways availability at the location of Mahakam riverbanks around the Kampung Arab settlement. The research method is qualitative descriptive method. Primary data were obtained through field observation, documentation, and interviews. The research is located in Kampung Arab settlement which occupies the banks of Mahakam River. Further analysis is done: 1) analysis of existing settlement of Kampung Arab to the Mahakam River related to: building’s orientation, river border, activity and behavior of society 2] analysis of public open space availability and its former elements, 3] analysis of settlement utility system and at the final stage conducted an analysis related to community activities and behavior. Expected results through this research are: improving function and quality of Mahakam River, restoring the function of riverbanks and public open space availability as social interaction space.


2003 ◽  
Vol 18 (3) ◽  
pp. 189-195 ◽  
Author(s):  
Mônica Cecília Bochetti Manna ◽  
Edna Frasson de Souza Montero ◽  
Maria Antonieta Longo Galvão da Silva ◽  
Yara Juliano

PURPOSE: To compare morphologically three different types of tracheotomy in growing rats, applying microsurgical technique. METHODS: EPM-1 Wistar growing rats (n=57) weighing 88gm and aged 35 days were randomized in four groups, according tracheotomy incision type (longitudinal, transverse and tracheal segment excision), and sham group. Following intramuscular anesthesia with ketamine and xylazine, the trachea was exposed and incised, according to the group, and a hand-made endotracheal cannula was inserted into the organ, under sterile conditions. This cannula was removed after 7 days, and animals have been sacrificed 30 days later. Tracheas samples were submitted to histological study, stained by hematoxylin-eosin and Masson trichrome, evaluating fibrosis, inflammatory infiltrate and epidermoid metaplasia. RESULTS: There was more frequency of inflammatory infiltrate at the tracheal epithelium in the tracheal segment excision group (87%) compared to the longitudinal (40%) and transverse (36%) incision groups (p=0.009). Evaluating epidermoid metaplasia, tracheal segment excision and the longitudinal groups presented 33% and 40%, respectively, compared to 0% of the transverse group (p=0.03). Concerning to fibrosis, in a global comparison (p=0.1) among the three groups there was no difference, however, compared to the longitudinal group the transverse group showed lower level of fibrosis (p=0.04). Sham group did not present any relevant morphologic alterations and it was used as reference pattern. CONCLUSION: Taken together, our data show that tracheal segment excision promotes more epithelium aggression and transverse tracheal incision shows less morphologic alterations.


2021 ◽  
Vol 10 (2) ◽  
pp. e21410212439
Author(s):  
Vanessa Sobue Franzo ◽  
Leiny Paula de Oliveira ◽  
Ana Carolina Pôssas Viana ◽  
Adriano Tony Ramos ◽  
Jéssica Fernanda Bertolino ◽  
...  

The Southern Caracara is a bird of prey, of the family Falconidae, inhabits all the Brazilian territory, they are omnivorous birds adapted for hunting. The digestive system of the predators presents differences in their morphology due to their eating habits. Knowing the importance of the gastrointestinal system, this study aims to carry out a histological study of the tongue, esophagus and the crop of Polyborus plancus. For this purpose, eight avian of both sexes, with different body weights and ages were used, they were euthanized and the organs were collected, fixed, dehydrated and stained with hematoxylin-eosin. It was noted that the tongue has stratified squamous epithelium with mucous glands and with different degrees of keratinization. The esophagus and crop have four well developed muscle layers and mucous glands. Additionally, in the crop there is presence of an adventitious layer that consists of loose connective tissue. We conclude that the tongue, the esophagus and the crop of the Southern Caracara have similar histological organization of several birds like the Pekin Ducks, ostriches, domestic chicken and partridges.


Simulacra ◽  
2019 ◽  
Vol 1 (2) ◽  
Author(s):  
Titi Fitrianita ◽  
Siti Kholifah ◽  
Rabiatul Adawiyah

<em>Merarik is a tradition which has been maintained by Sasak since a long time. In the beginning, this tradition was an effort to save women from immorality of Anak Agung Made Karangasem, the king of Lombok. But the aim of this tradition started to change. This paper tries to analyze the change of merarik in Nyurlembang Village, Narmada, West Lombok. Using qualitative descriptive and feminist approach, this paper found that merarik causes cultural violence for women. In the middle of the merarik problem, proposal becomes a better alternative for women, but proposal not fully received because it is not their own culture.</em>


2021 ◽  
Vol 1 (1) ◽  
pp. 31-39
Author(s):  
Nur Azisyah Mukmin ◽  
Krisdyatmiko

This article attempts to analyze the coastal community empowerment strategy of PT. Antam (Persero) Tbk UBPN Sultra’s CSR program. A company which engages in the mining industry should be aware of the impact caused by its activity. 53% of people living in coastal areas, especially for fisherman communities seen their icome decreased. This research used qualitative descriptive approach to examine the company, local government, yayasanbahari, and coastal communities beneficiaries as its unit analysis while also using data collection techniques such as interviews, observation, and documentation to filter the appropriate data. The sustainable economy-based coastal community empowerment program has been carried out since 2017 in 3 (three) villages in Pomalaa District, Kolaka Regency, Southeast Sulawesi. The findings of this research are: a) there is social jealousy between groups of fisherman due to difference in ethnical identities of Bugis, Bajo, and Makassar tribes. This conflict is known as primordial conflict and can be reduced by the creation of trust via interaction between YayasanBahari and coastal communities; b) there is class conflict between the boss and labor fisherman. The interaction between the two is known as the patron-client relationship that has lasted for a long time and has prevent the coastal communities to become self-sustaining.


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