Morphological variations of green mussel (Perna viridis) in bula, general santos city using geometric morphometric analysis

Paper Details

Research Paper 01/02/2016
Views (620)
current_issue_feature_image
publication_file

Morphological variations of green mussel (Perna viridis) in bula, general santos city using geometric morphometric analysis

Crystal Gayle B. Villaluz, Jorome C. Tolete, Frenzy B. Almocera, Merhama J. Janti, Trixie Joy E. Pilar, Mark Anthony J. Torres, Elani A. Requieron
J. Biodiv. & Environ. Sci. 8(2), 216-224, February 2016.
Copyright Statement: Copyright 2016; The Author(s).
License: CC BY-NC 4.0

Abstract

The Philippines, being a tropical country in the Pacific, has long been culturing mussels for business and food consumption. However, they cannot determine at a glance what gender is which. This study is conducted to determine the difference of the male P. viridis and the female P. viridis through landmark based Geometric-Morphometric method. The population sample of P. viridis were obtained from Bula, General Santos City and was analyzed using the Rohlf’s Tps series. This software helps in comparing the two landmark-defined shapes of P. viridis. Nine homologous points were plotted: (1) Umbo, (2) Ligament, (3) Posterior Adductor 1, (4) Posterior Adductor 2, (5) Posterior Adductor 3, (6) Posterior Adductor 4, (7) Posterior border, (8) Projection and (9) Anterior Adductor to determine the difference of shell size of male and female P. viridis. This study focuses on relationships between length-width and length-breadth through relative warps and on the abundance of both sexes among the specimen. The value of significance is 1 (p > 0.05) therefore, it is significant and there is a difference on the shell shape. The discriminant function analysis also showed that p = 1, therefore there is a significant difference in the shapes of both sexes. Results show that male P. viridis shell have a total variation of 89.56%, basing from the six relative warps, compared to that of the female P. viridis which is 90.65%, with a slight variation at the ligament and posterior adductor border regions. Relative warps also show that female mussels are wider and bigger than male mussels. It is suggested that the observation of the green mussel shells are done within one area only so as to prevent misleading inputs and have certainty on the report between male and female mussel shell comparison done on only one species.

Ahmed M. 1974. Chromosomes of two species of the marine mussel Perna. Bol. Insitute Oceanogr. University. Oriente 13, 17-22.

Arshad A. 2012. “Incidence of Hermaphrodite in Green Mussel Perna Viridis along the west coast of Peninsular Malaysia.” Asian Journal of Animal and Veterinary Advances. ISSN 1683-9919. 1012.

Cookies on Invasive Species Compendium. 2015. Invasive Species Compendium Data Sheets on Perna viridis. Europe.

MacLeod N. 2009. Principal Warps, Relative Warps and Procrustes PCA. Paleontology Department the Natural History Museum, London. Retrieved on

Masterson J. 2007. Perna viridis. Smithsonian Marine Station. Fort Pierce, Florida.

Rajagopal S. 1998. Settlement and growth of the green mussel Perna viridis(L.) in coastal waters: influence of water velocity. Laboratory of Aquatic Ecology, University of Nijmegen, the Netherlands. 32, 313-322, 1998.

Valladares A. 2010. Shell Shape Variation in Populations of Mytiluschilensis (Hupe 1854) from Southern Chile: A Geometric Morphometric Approach. Institute of Biomedical Sciences, Faculty of Medicine, University of Chile, Santiago, Chile.

Related Articles

Agroforestry in woody-encroached Sub-Saharan savannas: Transforming ecological challenges into sustainable opportunities

Yao Anicet Gervais Kouamé, Pabo Quévin Oula, Kouamé Fulgence Koffi, Ollo Sib, Adama Bakayoko, Karidia Traoré, J. Biodiv. & Environ. Sci. 27(3), 10-22, September 2025.

Extreme rainfall variability and trends in the district of Ouedeme, municipality of Glazoue (Benin)

Koumassi Dègla Hervé, J. Biodiv. & Environ. Sci. 27(3), 1-9, September 2025.

Heterosis breeding, general and specific combining ability and stability studies in pearl millet: Current trends

Ram Avtar, Krishan Pal, Kavita Rani, Rohit Kumar Tiwari, Mahendra Kumar Yadav, J. Biodiv. & Environ. Sci. 27(2), 117-124, August 2025.

Combining ability, heterosis and stability for yield and fibre quality traits in cotton: Breeding approaches and future prospects

Rohit Kumar Tiwari, Krishan Pal, R. P. Saharan, Ram Avtar, Mahendra Kumar Yadav, J. Biodiv. & Environ. Sci. 27(2), 109-116, August 2025.

Bridging the COPD awareness gap in marginalized populations: Findings from a multicentre study in Khalilabad, Sant Kabir Nagar, Uttar Pradesh, India

Anupam Pati Tripathi, Jigyasa Pandey, Sakshi Singh, Smita Pathak, Dinesh Chaudhary, Alfiya Mashii, Farheen Fatima, J. Biodiv. & Environ. Sci. 27(2), 97-108, August 2025.

Antioxidant and anti-inflammatory activity of Pleurotus citrinopileatus Singer and Pleurotus sajor-caju (Fr.) Singer

P. Maheswari, P. Madhanraj, V. Ambikapathy, P. Prakash, A. Panneerselvam, J. Biodiv. & Environ. Sci. 27(2), 90-96, August 2025.

Mangrove abundance, diversity, and productivity in effluent-rich estuarine portion of Butuanon River, Mandaue City, Cebu

John Michael B. Genterolizo, Miguelito A. Ruelan, Laarlyn N. Abalos, Kathleen Kay M. Buendia, J. Biodiv. & Environ. Sci. 27(2), 77-89, August 2025.

Cytogenetic and pathological investigations in maize × teosinte hybrids: Chromosome behaviour, spore identification, and inheritance of maydis leaf blight resistance

Krishan Pal, Ravi Kishan Soni, Devraj, Rohit Kumar Tiwari, Ram Avtar, J. Biodiv. & Environ. Sci. 27(2), 70-76, August 2025.