POPULATION STRUCTURE AND DYNAMICS OF THE FRESHWATER SHRIMP ATYAEPHYRA DESMARESTII (MILLET, 1831) IN THE LOWER RIVER MINHO (NW PORTUGAL)

• Type: Article in International Scientific Journal
• Date: 2015

Authors

Maria L Fidalgo (Author) Other; Paulo Santos (Author) FCUP; Claudia Ferreira (Author) Other; Andreia Silva (Author) Other

Journal

Title: Crustaceana

Vol. 88

Pages: 657-673

ISSN: 0011-216X

Publisher: Brill

Indexing

ISI Web of Knowledge - 2 Citations

Scopus - 1 Citation

Scientific classification

FOS: Natural sciences > Earth and related Environmental sciences

Other information

Authenticus ID: P-00G-DZD

DOI: 10.1163/15685403-00003442

Abstract (EN): This paper reports population dynamics, growth, and reproductive features of Atyaephyra desmarestii (Millet, 1831) from the estuary of the River Minho. Also, data were compared to information available from its distribution range. Samples were taken monthly between October 2010 and September 2011. Males were less abundant and smaller than females. The growth pattern showed hardly any increase during the autumn and winter, but a fast increase in size was recorded in spring, followed by slower growth in summer. The life span was 11-12 months. The reproductive period was from April to August, and mean fecundity reached 643 +/- 254 eggs/female. Juveniles started to appear in July and a strong recruitment occurred in summer and autumn. The ecological relevance of the shrimp supports the need of obtaining further and more specific knowledge on the relationship between geographical distribution and water quality. Our results coupled with longer time series in different localities will be essential to the conservation of the species.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 17