Testing the enemy release hypothesis: trematode parasites in the non-indigenous Manila clam Ruditapes philippinarum

Hydrobiologia ◽  
2009 ◽  
Vol 630 (1) ◽  
pp. 139-148 ◽  
Author(s):  
C. Dang ◽  
X. de Montaudouin ◽  
J. Bald ◽  
F. Jude ◽  
N. Raymond ◽  
...  
Keyword(s):  
Ruditapes Philippinarum ◽  
Enemy Release Hypothesis ◽  
Manila Clam ◽  
Enemy Release ◽  
Trematode Parasites

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

Preliminary study of establishment of families and their early growth and development for manila clam (Ruditapes philippinarum)

2010 ◽  
Vol 34 (1) ◽  
pp. 32-40
Author(s):  
Xi-wu YAN ◽  
Zhong-ming HUO ◽  
Yue-huan ZHANG ◽  
Feng YANG ◽  
Guo-fan ZHANG
Keyword(s):  
Growth And Development ◽  
Early Growth ◽  
Ruditapes Philippinarum ◽  
Manila Clam ◽  
Preliminary Study

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

scholarly journals The new PFAS C6O4 and its effects on marine invertebrates: First evidence of transcriptional and microbiota changes in the Manila clam Ruditapes philippinarum

2021 ◽  
Vol 152 ◽  
pp. 106484
Author(s):  
Ilaria Bernardini ◽  
Valerio Matozzo ◽  
Sara Valsecchi ◽  
Luca Peruzza ◽  
Giulia Dalla Rovere ◽  
...  
Keyword(s):  
Marine Invertebrates ◽  
Ruditapes Philippinarum ◽  
Manila Clam

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.

Seawater acidification affects the immune enzyme activities of the Manila clam Ruditapes philippinarum

2018 ◽  
Vol 36 (5) ◽  
pp. 1688-1696 ◽  
Author(s):  
Zhongming Huo ◽  
Xiangyu Meng ◽  
Rbbani Md.Golam ◽  
Weinan Cao ◽  
Qidi Wu ◽  
...  
Keyword(s):  
Enzyme Activities ◽  
Ruditapes Philippinarum ◽  
Manila Clam ◽  
Seawater Acidification

scholarly journals Testing the enemy release hypothesis in a native insect species with an expanding range

PeerJ ◽  
2015 ◽  
Vol 3 ◽  
pp. e1415 ◽  
Author(s):  
Julia J. Mlynarek
Keyword(s):  
Related Species ◽  
Enemy Release Hypothesis ◽  
Enemy Release ◽  
Infection Prevalence ◽  
Water Mite ◽  
Closely Related Species ◽  
Study Region ◽  
Ecological Release ◽  
Non Invasive ◽  
Enallagma Boreale

The enemy release hypothesis (ERH) predicts that the spread of (invasive) species will be facilitated by release from their enemies as they occupy new areas. However, the ERH is rarely tested on native (non-invasive, long established) species with expanding or shifting ranges. I tested the ERH for a native damselfly (Enallagma clausum) whose range has recently expanded in western Canada, with respect to its water mite and gregarine parasites. Parasitism levels (prevalence and intensity) were also compared betweenE. clausumand a closely related species,Enallagma boreale, which has long been established in the study region and whose range is not shifting. A total of 1,150 damselflies were collected at three ‘old’ sites forE. clausumin Saskatchewan, and three ‘new’ sites in Alberta. A little more than a quarter of the damselflies collected were parasitized with, on average, 18 water mite individuals, and 20% were parasitized by, on average, 10 gregarine individuals. I assessed whether the differences between levels of infection (prevalence and intensity) were due to site type or host species. The ERH was not supported:Enallagma clausumhas higher or the same levels of parasitism in new sites than old sites. However,E. borealeseems to be benefitting from the recent range expansion of a native, closely related species through ecological release from its parasites because the parasites may be choosing to infest the novel, potentially naïve, host instead of the well-established host.

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