In this issue

Antibacterial Potential of Gracilaria edulis Extracts Against Pathogenic Bacteria: Input to Organic Aquaculture
Identification of Plankton in the Stomach of Milkfish (Chanos chanos) Seeds Obtained from Natural Waters
First Record of Hermaphroditism in Green Mussels (Perna viridis) in the Philippines
The Post-Harvest Handling Practices of Glass Eel in Aparri, Cagayan: Operations, Challenges and Recommendations
Dietary Vitamin C and Lipid Feed Supplementations Influence the Expression of Immune-Related Genes in Litopenaeus vannamei (Boone 1931) Subjected to Thermal Stress
Gender Participation in the Capture and Marketing Sectors of the Glass Eel Fisheries in Aparri, Cagayan, Philippines
Status of Nematopalaemon tenuipes, Spider Prawn (Family: Palaemonidae) Stocks Caught in Aparri, Cagayan: A case of Gentleman’s Agreement Management Strategy
Environmental Change and Trends in Brackishwater Pond Milkfish Chanos chanos Production in the Philippines Over Six Decades: Insights to Possible Resiliency
Coral Reef Habitat and Associated Reef Fishes in the Kalayaan Island Group, West Philippine Sea
Catches and the Production of the Sea Cucumber Fishery of Mindanao, Philippines
Ichthyofauna of the Rasian and Asahan Rivers in the South Coast of Aceh Province, Indonesia
Determinants of Food Insecurity among Municipal Fishing Households during the COVID-19 Pandemic under Alert Level 1 in Kawit, Cavite, Philippines
Cell Viability and Coelomocyte Characterization of Crown-of-Thorns Starfish (Acanthaster planci L.) Collected from Southern Leyte, Philippines
Farming Systems of Eucheumatoid Seaweeds in Western Visayas, Philippines
Climate and Non-climate Related Hazards in Small Pelagic Fisheries and Milkfish Aquaculture: Expert Opinion Survey in the Philippines
Identification and Allometric Scaling of Megamouth Shark (Megachasma pelagios) Mother-Offspring Specimens from Dipaculao, Aurora, Luzon Island, Philippines
The Catch and Trade of Seahorses in the Philippines Post-CITES (2019)

Journal Issue Volume 32 Issue 1 First Record of Hermaphroditism in Green...

Research Article

First Record of Hermaphroditism in Green Mussels (Perna viridis) in the Philippines

Adzel Adrian G. Baldevieso ORCID logo

School of Marine Fisheries and Technology Mindanao State University at Naawan, Misamis Oriental, Philippines

Corresponding author

adzeladrian.baldevieso@msunaawan.edu.ph

, Ma. Shirley M. Golez2, and Fiona L. Pedroso1

1 School of Marine Fisheries and Technology Mindanao State University at Naawan, Misamis Oriental, Philippines
2 Institute of Marine Fisheries and Oceanology College of Fisheries and Ocean Sciences University of the Philippines Visayas

Page 19-27 | Received : September 4, 2023, Accepted : October 14, 2024

Abstract

This paper reports an incidence of hermaphroditism in green mussel (Perna viridis) in Inner Malampaya Sound, Taytay Palawan, Philippines, through histology. One hermaphrodite specimen (0.18% of the total samples) was recorded. The sample was macroscopically classified as a male. However, histology showed the presence of both male and female gametes inside the gonad with the dominance of male gametes. The total male to female (1:0.86) sex ratio in this study was statistically different (P = 0.002) from the expected binomial distribution of the 1:1 sex ratio. Despite its currently low occurrence, hermaphroditism in green mussels could have significant effects on reproduction, population dynamics, and aquaculture if its incidence increases in the future.


Keywords: Bivalves, gametes, histology, reproductive biology, sex ratio