Reproductive strategy of the invasive green mussel may result in increased competition with native fauna in the southeastern United States - Université de Bretagne Occidentale Access content directly
Journal Articles Aquatic Invasions Year : 2016

Reproductive strategy of the invasive green mussel may result in increased competition with native fauna in the southeastern United States

Abstract

Understanding the population dynamics of invasive species, such as the green mussel Perna viridis (Linnaeus, 1758), can aid in explaining the success of newly introduced populations and help predict the potential for spread. During a two-year field study of established populations in the invaded region of southwest Florida, year round gametogenesis and continuous spawning capabilities were observed through histological analysis of mussels collected monthly. This was supported by overall stable energetic reserves as measured through proximal biochemical composition (protein, glycogen and lipid content). However, egg outputs in the summer (6.4 × 10 6 ± 2.6 × 10 6 eggs / female) were significantly higher than egg outputs of winter-spawned mussels (7.7 × 10 4 ± 1.4 × 10 4 eggs / female). Stability in biochemical composition, suggests temperature and food availability were sufficient year round, allowing for the maintenance of reserves and active gametogenesis. Protein ranged from 409.0–628.0 mg g −1 , glycogen from 44.3–158.5 mg g −1 and total lipids from 7.4–13.5 mg g −1. Year-round reproductive capabilities supported by sufficient energy reserves may help explain the rapid colonization and high densities of green mussels along the southeastern United States and suggests the potential for competition with native species, particularly the eastern oyster Crassostrea virginica (Gmelin, 1791).
Fichier principal
Vignette du fichier
AI_2016_McFarland_etal.pdf (1.02 Mo) Télécharger le fichier
Origin Publisher files allowed on an open archive
Loading...

Dates and versions

hal-01395750 , version 1 (11-11-2016)

Identifiers

Cite

Katherine K Mcfarland, Philippe Soudant, Fred Jean, Aswani K Volety. Reproductive strategy of the invasive green mussel may result in increased competition with native fauna in the southeastern United States. Aquatic Invasions, 2016, 11 (4), pp.411-423. ⟨10.3391/ai.2016.11.4.06⟩. ⟨hal-01395750⟩
290 View
233 Download

Altmetric

Share

Gmail Mastodon Facebook X LinkedIn More