Response of the carpet shell clam (Ruditapes decussatus) and the Manila clam (Ruditapes philippinarum) to salinity stress

Biologia ◽  
2016 ◽  
Vol 71 (5) ◽  
Author(s):  
Aicha Gharbi ◽  
Emilie Farcy ◽  
Alain Van Wormhoudt ◽  
Françoise Denis
Keyword(s):  
Water Temperature ◽  
Salinity Stress ◽  
Ruditapes Philippinarum ◽  
Manila Clam ◽  
Environmental Stressors ◽  
Ruditapes Decussatus ◽  
Marine Molluscs ◽  
Intertidal Species

AbstractEnvironmental stressors are known to play an important role in determining the distribution and abundance of intertidal species. Marine molluscs are particularly susceptible to changes in water temperature and salinity in inter-tidal zones.

Reproductive cycle of the Manila clam (Ruditapes philippinarum): an intensively harvested invasive species in the Tagus Estuary (Portugal)

2017 ◽  
Vol 98 (7) ◽  
pp. 1645-1657 ◽  
Author(s):  
Paula Moura ◽  
Paulo Vasconcelos ◽  
Fábio Pereira ◽  
Paula Chainho ◽  
José Lino Costa ◽  
...  
Keyword(s):  
Invasive Species ◽  
Reproductive Cycle ◽  
Sexual Maturity ◽  
Ruditapes Philippinarum ◽  
Manila Clam ◽  
Tagus Estuary ◽  
Gonad Maturation ◽  
Oocyte Diameter ◽  
Ruditapes Decussatus ◽  
Spawning Period

The present study aimed to describe the reproductive cycle and estimate the size at sexual maturity of the Manila clam (Ruditapes philippinarum) in the Tagus Estuary (Portugal). Specimens were collected monthly from September 2013 to December 2015 during fishing surveys using bivalve dredges. The gametogenic cycle was described in detail using gonad histology and monitored throughout the study period by the monthly variation in the frequency of gonad maturation stages, mean gonadal index and mean oocyte diameter. This invasive population of R. philippinarum displayed synchronous gonadal development between sexes, with ripening occurring mainly in April and May followed by an extensive spawning period until November–December. Individuals reached the size at first sexual maturity at 29.4 mm in shell length (i.e. before 1 year old). Furthermore, the reproductive strategy, dynamics and potential were compared between the invasive R. philippinarum and the native congeneric carpet shell clam (Ruditapes decussatus). Overall, the data gathered in this study constitutes valuable baseline information to propose conservation strategies and implement management measures to minimize the harmful impacts caused by this invasive species on local ecosystems and native biodiversity, particularly over populations of autochthonous bivalves.

The HSP70 gene expression responses to thermal and salinity stress in wild and cultivated Manila clam Ruditapes philippinarum

Aquaculture ◽  
2017 ◽  
Vol 470 ◽  
pp. 149-156 ◽  
Author(s):  
Hongtao Nie ◽  
Lianhui Liu ◽  
Zhongming Huo ◽  
Peng Chen ◽  
Jianfeng Ding ◽  
...  
Keyword(s):  
Gene Expression ◽  
Salinity Stress ◽  
Ruditapes Philippinarum ◽  
Manila Clam ◽  
Hsp70 Gene

Three way crosses between two-band red and white zebra strains of Manila clam, Ruditapes philippinarum

2011 ◽  
Vol 34 (8) ◽  
pp. 1190-1197
Author(s):  
Xi-wu YAN ◽  
Yue-huan ZHANG ◽  
Huan-qiang SUN ◽  
Zhong-ming HUO ◽  
Xin SUN ◽  
...  
Keyword(s):  
Ruditapes Philippinarum ◽  
Manila Clam

scholarly journals Survey on Perkinsus Species in Manila Clam Ruditapes philippinarum in Korean Waters Using Species-Specific PCR

2017 ◽  
Vol 52 (4) ◽  
pp. 202-205 ◽  
Author(s):  
Hyun-Sil Kang ◽  
Hyun-Sung Yang ◽  
Kimberly S. Reece ◽  
Young-Ghan Cho ◽  
Hye-Mi Lee ◽  
...  
Keyword(s):  
Ruditapes Philippinarum ◽  
Manila Clam ◽  
Korean Waters ◽  
Specific Pcr ◽  
Species Specific
Sign in / Sign up

Export Citation Format

Share Document