Cockle Cerastoderma edule population mortality: role of the digenean parasite Himasthla quissetensis

Desclaux, Céline; Montaudouin, Xavier de; Bachelet, Guy

doi:10.3354/meps279141

Cited by 71 publications

(82 citation statements)

References 37 publications

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“…Several reports have been made attributing infections in Cardiidae species to trematode infestations throughout their area of distribution (Derbali et al, 2009). Such trematode infections lead to reduced growth (Wegeberg and Jensen 2003), and enhanced mortality (Desclaux et al, 2004, Thieltges, 2006. Derbali, et al (2009) stated that 15% of C. glaucum from the Gulf of Gabes (southern Tunisia) were found infected by digenean trematode species.…”

Section: Discussionmentioning

confidence: 99%

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Kandeel¹,

Mohammed²,

Mostafa³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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The cockle Cerastoderma glaucum represents one of the most common marine mollusc species present in Egyptian waters. This study aims to investigate the population structure, growth, mortality, and exploitation status of this cockle along Lake Qarun and Lake Timsah in order to make a comparison study. Cockles were collected from Lake Qarun at monthly intervals between February 2008 and May 2009 and collected from Lake Timsah at four seasons only. Length frequency data were analyzed using FiSAT software for estimation of population parameters to evaluate the stock. Asymptotic length (L∞) was smaller in Lake Qarun (28.35 mm) compared to that in Lake Timsah (33.60 mm).Growth coefficient (K) was higher in Lake Qarun (0.450 yr -1 ) than in Lake Timsah (0.280 yr -1 ).Growth performance index (Φ) values were similar (2.56) in both cockle stocks. The theoretical maximum age (Tmax) was higher in Lake Timsah (12.6 yr -1 ) than in Lake Qarun (7.4 yr -1 ). Total mortality (Z) was estimated by length-converted catch curve at 1.02 and 0.24 yr -1 , fishing mortality (F) at -0.04 and 0.47 yr -1 and natural mortality (M) at 1.06 and 0.71 yr -1 for Lake Qarun and Lake Timsah, respectively. Recruitment was continuous and showed two major pulses in the two lakes.

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Section: Discussionmentioning

confidence: 99%

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Kandeel¹,

Mohammed²,

Mostafa³

et al. 2017

Turk. J. Fish. Aquat. Sci.

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“…Labratrema minumus is more common in the south, where its final fish hosts are also more abundant (Maillard 1975) and it may have recently invaded the Waden Sea by migration of its final hosts (see above). While very common in French waters (de Montaudouin et al 2000;Desclaux et al 2004), the trematode Himasthla quissetensis is absent from the Wadden Sea, possibly due to the lack of its first intermediate hosts, the gastropods Nassarius reticulates and Cyclope neritea. In contrast, Renicola roscovita seems to be more common in the northern Wadden Sea compared to France (de Montaudouin et al 2000).…”

Section: H Y D R O B I a U L V A E L I T T O R I N A L I T T O R E A mentioning

confidence: 99%

Macroparasite community in molluscs of a tidal basin in the Wadden Sea

et al. 2006

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We provide a quantitative inventory of macroparasites in intertidal molluscs from a tidal basin in the Wadden Sea (eastern North Sea). Gastropods and bivalves contained a species rich macroparasite community consisting of trematodes (26 species), turbellarians (1), nematodes (1), copepods (2) and polychaetes (1) in 3,800 host individuals from 10 host species. Highest parasite burdens were observed in the gastropods Hydrobia ulvae and Littorina littorea and in the bivalves Cerastoderma edule and Mytilus edulis. In contrast, only one parasite species and no trematodes were found in Crepidula fornicata. The parasite community in the molluscs was similar to other Western European localities but some parasite species showed obvious differences, related to the large-scale distribution of intermediate and final hosts. Parasitism seems to be a common phenomenon in molluscs of the Wadden Sea and hence the detrimental effects observed in experiments can be expected to frequently happen in the field.

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“…The effect on these second intermediate hosts seems less deleterious, since metacercariae do not reproduce in the host tissues: they wait for their host to be predated upon by the final host, a vertebrate, in which sexual reproduction takes place. However, it is considered that a high number of meta cercariae, alone or in combination with other stressors like oxygen depletion and extreme temperatures, may provoke effects at the host population scale (Mouritsen & Jensen 1997, Wegeberg & Jensen 1999, Desclaux et al 2004.Estimation of the effects of trematode load on the population dynamics of marine species remains poorly documented and restricted to effects at the individual scale. For molluscs, most studies to date deal with gastropods that act as first intermediate hosts, and different trends were observed in different studies: depending on the host species, parasitism stunted growth (Sousa 1983, Curtis 1995, Huxham et al 1995, Curtis et al 2000, stimulated growth ('gigantism') (Rothschild 1936, Mouritsen & Jensen 1994, Zakikhani & Rau 1999, or had no effect (Anderson 1971, Mouritsen et al 1999.…”

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confidence: 99%

Effect of trematode parasites on cockle Cerastoderma edule growth and condition index: a transplant experiment

Montaudouin¹,

Bazairi²,

Culloty³

2012

Mar. Ecol. Prog. Ser.

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We quantified the effect of trematode parasites in cockles through a 303 d transplant experiment. Cockles were sampled in 3 different sites on the southwest coast of France characterized by 3 different trematode communities, i.e. Royan (RO): high Meiogymnophallus minutus abundance near cockle heart, South Arguin (SA): high Himasthla interrupta abundance in the mantle margin, and North Arguin (NA): almost free of trematodes. Sampled cockles were individually tagged and placed in different cages at Banc d'Arguin, Arcachon Bay. At the end of the experiment, RO cockles had lost their trematodes, highlighting the fact that trematode lifespan can be short, while SA cockles maintained their trematode load. When cockles were the second intermediate host, there was no effect of site of origin on cockle condition index and survival. The effect on growth rate was mostly due to initial cockle length. Within each treatment, the only significant effect of trematode infection on growth was found for H. interrupta at SA. The 23% growth deficit observed could be due to the disruption of cockle shell synthesis in the mantle margin. During the transplant experiment, cockles were also infected at an exceptionally high rate by Bucephalus minimus, a trematode which invades most of the tissues and uses the cockle as a first intermediate host. Surprisingly, there was an effect on the growth rate and condition index of cockles at only one of the sites under study. This field experiment succeeded in quantifying the moderately negative effect of trematode parasites on the growth and condition of their host and suggested the existence of interactions with as yet unknown factors. KEY WORDS: Cerastoderma edule · Parasitism · Growth · Mortality · Condition index · Transplant experiment Resale or republication not permitted without written consent of the publisherMar Ecol Prog Ser 471: [111][112][113][114][115][116][117][118][119][120][121] 2012 Cerastoderma edule. A recent census listed 16 species associated with trematodes, from Norway to South Morocco, including the British Isles (de ). In the first intermediate host, the parasite reproduces asexually and invades most host tissues, resulting in dramatic effects such as castration or death. This is the sporocyst or rediae stage, leading to the emission in the water body of thousands of new parasite propagules called cercariae. The parasite prevalence at this stage (i.e. percentage of infected hosts) is generally low, and the effect at the population scale is small. However, under certain environmental conditions (often remaining unidentified), prevalence reaches dramatically high values and is correlated with mass mortality (Jonsson & André 1992). Cercariae that are shed by the first intermediate host have only a few hours to infect the second intermediate host and to settle as a latent stage called the metacercariae. The effect on these second intermediate hosts seems less deleterious, since metacercariae do not reproduce in the host tissues: they wait for their host to be pred...

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Cockle Cerastoderma edule population mortality: role of the digenean parasite Himasthla quissetensis

Cited by 71 publications

References 37 publications

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Macroparasite community in molluscs of a tidal basin in the Wadden Sea

Effect of trematode parasites on cockle Cerastoderma edule growth and condition index: a transplant experiment

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