Seasonal cycles in and effects of starvation on egg development in Mytilus edulis

Pipe, RK

doi:10.3354/meps024121

Cited by 40 publications

(15 citation statements)

References 11 publications

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“…The cause of these opposite effects in the 2 species studied is unknown . Similar effects in benthic animals were found in studies of effects of starvation (Coe & Turner, 1938 ;Bayne, 1975 ;Bayne et al, 1978Bayne et al, , 1982Pipe, 1985), extreme temperatures (Bayne et al, 1978 ;Maung-Myint & Tyler, 1982), low salinities (Butler, 1949) and contamination by metals (Maung-Myint & Tyler, 1982 ;Akberali & Trueman, 1985). Minimal effects in those studies were found at the end of summer or in autumn and were attributed to a good condition, to high concentration of biochemical reserves and to gametogenesis being in the resting stage .…”

Section: Effects On Reproductionsupporting

confidence: 73%

The effects of prolonged emersion and submersion by tidal manipulation on marine macrobenthos

et al. 1994

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Effects of tidal manipulation, resulting in prolonged periods of emersion and submersion or in protracted tidal cycles, on estuarine benthic animals are reviewed .Prolonged submersion periods did not show effects on mortality of most benthic animals tested, with the exception of the crumb-of-bread sponge Halichondrea panicea, which, at low water-flow rates, was covered with a layer of bacteria and subsequently died .Protracted low-water periods of 18 hours during several weeks hardly caused any mortality . However, protracted low-water periods of 30 hours during some weeks or emersion during several days caused a strong increase in mortality, depending on : the duration of emersion, temperature, condition of the animals, species and age . At temperatures below -1 °C and above 24 °C mortality was generally high. Animals with a low glycogen content were more sensitive to emersion than those with a high content . Species with a shell and those that are relatively big were less sensitive than those without a shell or of small size .The reproductive cycle of benthic animals could be delayed or accelerated by both emersion and submersion . 219

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Section: Effects On Reproductionsupporting

confidence: 73%

The effects of prolonged emersion and submersion by tidal manipulation on marine macrobenthos

et al. 1994

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“…Further, the bulk of stored energy in the adult would have been committed to continuing reproductive development (Gabbott & Bayne 1973, Holland & Spencer 1973, Thompson et al 1974, Bayne 1975, Sastry 1980, even during complete food deprivation (Bayne et al 1978). Eventually, the gill and mantle structures required for the intake of food and oxygen degenerate (Pipe 1985). As a result, effects on mussels surviving the NBP bloom may have lasted long after the bloom had subsided below feeding reduction densities.…”

Section: Discussionmentioning

confidence: 99%

Feeding reduction, reproductive failure, and mortality in Mytilus edulis during the 1985 'brown tide' in Narragansett Bay, Rhode Island

Tracey¹

1988

Mar. Ecol. Prog. Ser.

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ABSTRACT. During summer 1985, reduced feeding, reproductive failure and massive mortalities were observed in populations of the blue mussel Mytilus edulis during an extremely dense algal bloom (106 cells ml-l) in Narragansett Bay, Rhode Island (USA). The dominant alga was an extremely small (1 to 211m diameter) non-flagellated chrysophycean form previously unobserved in coastal or offshore waters. Effects of the alga on clearance rates of mussels were tested using natural particulates (NBP) collected from Narragansett Bay during the bloom. Reductions in clearance rate were independent of cell size and extra-cellular exudates of the bloom alga. Experiments repeated with the hard shell clam Mercenaria mercenaria produced similar clearance rate responses. In examining density-dependent effects, NBP concentrations below 2.5 X 10' particles ml-' allowed normal clearance of a food alga (Isochrysis galbana) and NBP, while significant reductions in the clearance of food algae were observed at NBP concentrations above 5.0 X 10' particles ml-l. In Narragansett Bay, NBP densities ~ncreased from 9 X 10' cells ml-' at seaward stations to above 15 X 105 cells ml-' in the upper bay. High mortality in indigenous mussels was coincident with peak bloom conditions, varylng from 30 to 100 YO at stations along the main axis of the bay. In addition, complete reproductive failure of the population was apparent. This effect could not otherwise be explained by environmental conditions of temperature, salinity or dissolved oxygen concentration. It is concluded that starvation stress induced by noxious properties of the bloom alga in combination with seasonal effects (reproductive stage, temperature) was the cause of the demise of M. edulis.

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“…So, under circumstances of poor food quality (e.g, during winter; Widdows et al 1979), large mussels, with reduced but relatively high maintenance requirements (Bayne & Newel1 1983), may lose a relatively greater proportion of energy reserves than smaller mussels. This situation would then be reflected in a reduction in gamete production, which is known to occur even after short periods of starvation , 1982, Pipe 1985. Jargensen (1976) suggests that these physiological processes are important in the determination of the final size of mussels.…”

Section: Discussionmentioning

confidence: 99%

Aspects of reproduction associated with the use of a segmented regression to describe the relationship between body weight and shell length of Mytilus edulis

Salkeld¹

1995

Mar. Ecol. Prog. Ser.

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Data on total dry tissue weight and shell length were obtained from an intertidal population of Mytilus edulis located in an estuary in SW England. Representation of the loglo transformed data is significantly improved by the use of a segmented regression instead of a single linear regression. There is a significant reduction in the slope (b) of the regression, relating total dry tissue weight (y) to shell length ( X ) , for mussels over 50.3 mm. This pertains also to the component tissues: mantle (at 50.1 mm shell length), digestive gland (at 60.4 mm) and remainder (at 52.7 mm). Weight of mantle tissue and of digestive gland does not change (b E 0), whilst remaining tissue increases, but at a reduced rate, as shell length increases in excess of these respective sizes. Stereological examination of sections of mantle tissue were made throughout the year. Results indicate that h~g h levels of reproductive tissue (i.e. >80% of mantle volume) are achieved in half as many large ~ndividuals (mean shell length 64.7 mm) as in 2 smaller size groups (means of 35.1 and 50.4 mm). These results suggest that reproductive effort increases to a maximum at a shell length of approximately 50 mm, thereafter declining as size increases. A segmented regression is also appropriate to describe the relationship of total tissue and mantle tissue weight to shell length of a sample from another estuarine population, but not from a wave exposed, open shore population. Reasons for these observations are discussed in the context of the feeding: metabolism ratio, availability of food and age.

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Seasonal cycles in and effects of starvation on egg development in Mytilus edulis

Cited by 40 publications

References 11 publications

The effects of prolonged emersion and submersion by tidal manipulation on marine macrobenthos

The effects of prolonged emersion and submersion by tidal manipulation on marine macrobenthos

Feeding reduction, reproductive failure, and mortality in Mytilus edulis during the 1985 'brown tide' in Narragansett Bay, Rhode Island

Aspects of reproduction associated with the use of a segmented regression to describe the relationship between body weight and shell length of Mytilus edulis

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