Morphometric Measurements and Sexual Dimorphism of Barramundi Lates calcarifer (Bloch, 1790) from the Coastal Rivers Adjoining Bay of Bengal

The breeding biology of tree frog, Polypedates teraiensis was studied during the breeding season at Mizoram University Campus. It was found that sound production by male during the breeding season was primarily a reproductive function and advertisement calls attract females to the breeding areas and announce other males that a given territory is occupied. The aim of this study was to provide the detailed information on the breeding behaviour and the advertisement calls of Polypedates teraiensis. The morphometric measurements of the amplecting pairs (males and females) for sexual dimorphism along with clutch sizes were also studied.

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Morphometric measurements for sexual dimorphism in the Campolina horse breed

Pesquisa Agropecuária Brasileira ◽

10.1590/s1678-3921.pab2021.v56.02148 ◽

2021 ◽

Vol 56 ◽

Author(s):

Lisia Castro Krebs ◽

Marina Monteiro de Moraes Santos ◽

Maria Claudia Siqueira ◽

Brennda Paula Gonçalves de Araujo ◽

Leonardo Gomes Oliveira ◽

...

Keyword(s):

Sexual Dimorphism ◽

Discriminant Analysis ◽

Sexual Differentiation ◽

Analysis Of Covariance ◽

Classification Error ◽

Horse Breed ◽

Linear Measurements ◽

Morphometric Measurements ◽

Classification Errors ◽

Angular Measurements

Abstract: The objective of this work was to distinguish the sexual dimorphism of horses of the Campolina breed, by morphometric measurements, and to classify them according to sex, using discriminating functions. Two-hundred and fifteen horses were measured, and 39 morphometric measurements were evaluated. The analysis of covariance and the discriminant analysis were performed. Males were taller and showed a wider chest, a greater scapular-humeral angle, and a larger neck, both in length and circumference. Females had a larger heart girth, wider hips, and a greater opening of the coxal-ground and femorotibial angles. Regarding classification, circumference measurements (85.58%) were more accurate in sexual differentiation than the linear (83.26%) and angular (73.02%) ones. As to classification error, of the total animals measured, 10 to 20% of the females were categorized as males. In addition, 11 to 38% of the males were categorized as females. It can be concluded that of the 39 morphometric measurements evaluated, 22 are responsible for sexual dimorphism in the Campolina horse breed. Circumference and linear measurements provide a more assertive classification to determine sexual dimorphism. Angular measurements show greater classification errors regarding the gender of the horses.

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Morphometric measurements and sexual dimorphism of the piriform aperture in adults

Surgical and Radiologic Anatomy ◽

10.1007/s00276-013-1116-2 ◽

2013 ◽

Vol 35 (10) ◽

pp. 917-924 ◽

Cited By ~ 13

Author(s):

Eric Moreddu ◽

Laurent Puymerail ◽

Justin Michel ◽

Michaël Achache ◽

Patrick Dessi ◽

...

Keyword(s):

Sexual Dimorphism ◽

Morphometric Measurements ◽

Piriform Aperture

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Sexual dimorphism of Malaysian Mahseer, Tor tambroides broodstock reared in captivity: Morphometric measurements dataset

Data in Brief ◽

10.1016/j.dib.2020.106557 ◽

2020 ◽

Vol 33 ◽

pp. 106557

Author(s):

Muhammad Yazed Abduh ◽

Nor Hakim Norazmi-Lokman ◽

Mohammad Syahnon ◽

Gusti Afiz Gusti Roslan ◽

Nurul Hayati Ismail ◽

...

Keyword(s):

Sexual Dimorphism ◽

Morphometric Measurements ◽

In Captivity

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Phenotypic characterization of naturalized swine breeds in Brazil, Uruguay and Colombia

Brazilian Archives of Biology and Technology ◽

10.1590/s1516-89132010000300011 ◽

2010 ◽

Vol 53 (3) ◽

pp. 583-591 ◽

Cited By ~ 2

Author(s):

Concepta McManus ◽

Samuel Rezende Paiva ◽

Alva Vanessa Rezende Silva ◽

Luci Sayori Murata ◽

Helder Louvandini ◽

...

Keyword(s):

Sexual Dimorphism ◽

Analysis Of Variance ◽

Coefficient Of Determination ◽

Phenotypic Characterization ◽

Morphometric Data ◽

Morphometric Measurements ◽

Phenotypic Data ◽

Material Information ◽

On Farm

Morphometric data was collected on 859 naturalized swine in Brazil (Piau, Tatu, Nilo, Caruncho, Casco de Burro, Moura, Monteiro and Rabo de Peixe), Colombia (Criolla Zungo, Sanpedreño and Casco de Mula) and Uruguay (Mamellado), both on farm and in published material. Information was collected on breed, sex and age, as well as various morphometric measurements. Analysis of variance was carried out using PROC MIXED of SAS ® on phenotypic data. The coefficients of variance varied between 11.50 and 83.81%, and the coefficient of determination was medium to high. Females were in general smaller for most measurements than males, showing sexual dimorphism. The Moura was the closest naturalized breed to the commercial breeds, followed by the Piau, while the Monteiro was the furtherest. The dendrogram obtained from morphological information showed a division of the pigs into three groups. Characterization was possible using morphological and morphometric data.

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Comparative morphology of the Euphrates soft-shelled turtle, Rafetus euphraticus (Daudin, 1802) (Reptilia, Testudines) in Southeastern Anatolia

Amphibia-Reptilia ◽

10.1163/156853898x00188 ◽

1998 ◽

Vol 19 (3) ◽

pp. 281-291 ◽

Cited By ~ 5

Author(s):

Ertan TaŞkavak

Keyword(s):

Sexual Dimorphism ◽

Sex Ratio ◽

Carapace Length ◽

Carapace Width ◽

Comparative Morphology ◽

Head Width ◽

Morphometric Measurements ◽

Allopatric Populations ◽

The Past

AbstractMorphometric measurements and ratios were recorded in Euphrates soft-shelled turtles, Rafetus euphraticus, sampled in the Euphrates and Tigris rivers and tributaries, Southeastern Anatolia. According to nine morphometric ratios, there are clear differences between two allopatric populations of R. euphraticus, the specimens of the Tigris population being much flatter and having a wider carapace as compared with the Euphrates population. Male:female sex ratio was 2.7:1, no sexual dimorphism was present in the morphometric ratios. Rafetus euphraticus and Trionyx triunguis, which were considered congeneric in the past, differed from each other in the ratios of the carapace length/carapace width, carapace length/plane of the greatest carapace width, carapace length/plastron length, carapace length/rostrum length, carapace width/plastron length, carapace width/head width and plastron length/rostrum length.

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Morphometric measurements of the European pond turtle (Emys orbicularis)(L., 1758) in Lithuania

Biologija ◽

10.6001/biologija.v67i2.4455 ◽

2021 ◽

Vol 67 (2) ◽

Author(s):

Karolina Lukošiūtė ◽

Monika Brimaitė ◽

Alma Pikūnienė ◽

Ramūnas Krugelis ◽

Algimantas Paulauskas

Keyword(s):

Sexual Dimorphism ◽

Protected Areas ◽

Shell Height ◽

Size Variation ◽

Ecological Network ◽

Morphometric Measurements ◽

Emys Orbicularis ◽

Life Project ◽

Pond Turtle ◽

Males And Females

In Lithuania, the number of European pond turtles Emys orbicularis decreased between 1975 and 2010, but increased significantly between 2010 and 2014, when the LIFE project was implemented. During this project, an ecological network was created, habitats were restored in protected areas, and European pond turtle nesting areas were protected from predators. Very few morphometric measurements of European pond turtles are carried out in Lithuania. The purpose of this study was to perform morphometric measurements, assess migration, spread, and morphometric size variation. Morphometric measurements of juvenile European pond turtles showed that the morphometric indicators depended on the place of habitation: males from Juodabalė Zoological Reserve (Meteliai Regional Park) are smaller than females. Also, female turtles from Meteliai Regional Park are larger than both males and females from Kučiuliškė Herpetological Reserve. When comparing the morphometric indicators of males and females at ten months of age, sexual dimorphism is already observed: the shell height, the width of the head, carapace, and plastron of a females are already bigger than those of males.

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Diversity of fishing gears and crafts used for harvesting the Asian seabass, Lates calcarifer along the Bay of Bengal, Bangladesh coast

Bangladesh Journal of Fisheries ◽

10.52168/bjf.2021.33.17 ◽

2021 ◽

Vol 33 (1) ◽

pp. 147-155

Author(s):

MOHAMMED ASHRAFUL HAQUE ◽

MD. ISTIAQUE HOSSAIN ◽

SHANUR JAHEDUL HASAN ◽

PROBIN KUMAR DEY

Keyword(s):

Bay Of Bengal ◽

Secondary Data ◽

Fishing Gear ◽

Nursery Ground ◽

Life Stages ◽

Lates Calcarifer ◽

Asian Seabass ◽

Fishing Gears ◽

Bay Of Bengal Coast ◽

First Time

Though Asian Seabass, which is locally known as "Koral"/"Vetki," is a vital species in terms of its popularity and price, little is known about the location of breeding and nursery ground, peak breeding season, peak harvesting season, population dynamics, harvesting operation (gears and crafts used for harvesting) of this species in Bangladesh. An investigation was carried out to enlist the group of crafts and gears that are being operated on the Bay of Bengal coast by the fishermen for Asian seabass harvesting. The survey was based on interviews with the local fishermen and secondary data collected from the regional fisheries offices. The study revealed a total of 10 distinguishing fishing gears, including seven nets and two types of hook and lines were used for harvesting this fish. Some are selective for harvesting Seabass, but most of them are involved in multi-species exploitation. Four types of motorized and two types of non-motorized traditional boats are being used for harvesting the seabass in Bangladesh. The seabass fishery extends almost throughout the year at different life stages. The Koral net, Mela Barshi (Single Hook and line), and Push net were found to be effective for catching adult, pre-adult, and juvenile Asian seabasses, respectively. The Sampan boat and Mela barshi were reported for the first time as fishing boats and fishing gear in Bangladesh.

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A study on sacral index and its uses in sex determination

International Journal of Research in Pharmaceutical Sciences ◽

10.26452/ijrps.v11ispl2.2691 ◽

2020 ◽

Vol 11 (SPL2) ◽

pp. 264-266

Author(s):

Gunapriya Raghunath ◽

Yuvaraj M ◽

Aishwarya V ◽

Balaji K ◽

Karthikeyan G ◽

...

Keyword(s):

Sexual Dimorphism ◽

Sex Determination ◽

Racial Differences ◽

Complex Structure ◽

Age Groups ◽

Morphometric Measurements ◽

Spinal Nerves ◽

The Individual

The human sacrum is a complex structure and provides accommodation for spinal nerves which stabilises the pelvis. Morphometric measurements of sacrum determine the sex of the individual. The measurement of sacral index using the sacrum bone is considered as one of the best methods for determination of sex. The aim of this study is to find out the importance of sacral index in sexual dimorphism and to compare the findings with various age groups. 100 fully ossified sacral bones were collected from department of Anatomy. Average sacral length and breadth were taken by using sliding Vernier caliper and sacral index was calculated. The obtained values were tabulated against their respective parameters and then interpreted for the study. Avergae sacral index in females (109) is significantly greater than males (94). As per present study sacral index can reliably identify 58% of male sacrum and 42% of female sacrum. It is therefore a quite reliable and significant criteria for sex determination of sacrum. Thus, regional and racial differences in sacrum along with sacral index can be used for anatomical, medico-legal and anthropological purposes.

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Sexual Size Dimorphism On Some Penaeid Shrimp In Sudanese Red Sea

Journal of agricultural, environmental and veterinary sciences - مجلة العلوم الزراعية والبيئية والبيطرية ◽

10.26389/ajsrp.a10217 ◽

2017 ◽

Vol 1 (3) ◽

Author(s):

Mamduh Abdalla Osman Ahmed

Keyword(s):

Body Weight ◽

Sexual Dimorphism ◽

Penaeus Monodon ◽

Penaeid Shrimp ◽

Morphometric Measurements ◽

Total Length ◽

Penaeus Semisulcatus ◽

Length Measurements ◽

Penaeus Indicus ◽

Relationship Of

In Sudanese RedSea, Shrimp Morphometric relations were undertaken, on some penaeid species: Penaeus monodon, Penaeus indicus, Penaeus semisulcatus, Metapenaeus monoceros, Trachypenaeus curvirostris and Metapenaeus stebbingi. Females were larger than males in all studied species, the largest species was P. semisulcatus and the smallest one was Trachypenaeus curvirostris, which was 6g maximam weight during the study. Table1. Some of body measurements Sexualdimorphism obtained in all morphometric measurements of P. semisulcatus and T. curvirostris. However, no sexualdimorphism in P. monodons’ morphometric measurements, in M. monoceros sexualdimorphism in length measurements and in P. indicus only in total length. The length weight relationship of studied shrimps differs according to the sex. Both sexes of T. curvirostris and P. semisulcatus shows sexual dimorphism in total length, carapace length and body weight, in P. monodon was no sexual dimorphism, P. indicus sexual dimorphism was in length measurements and in M. monoceros only in body weight.

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