Reproduction and sex reversal of the solitary vermetid gastropod Serpulorbis arenarius

Calvo, Marta; Templado, José

doi:10.1007/s00227-004-1490-8

Cited by 16 publications

(8 citation statements)

References 28 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…With few exceptions (Hodgson & Eckelbarger, 2000), who studied the oogenesis in six species of patellid limpets from South Africa, gametogenic studies in gastropods are mostly limited to commercial species such as the Buccinum undatum Linnaeus, 1758 from east Canada (Martel et al , 1986a, b; Gendron, 1992; Himmelman & Hamel, 1993), Zidona dufresnei (Donovan, 1823) from Argentina (Giménez & Penchaszadeh, 2002, 2003), or to imposex indicators such as Reishia (Thais) clavigera (Kuster, 1858) from the west coast of Korea (Lee, 1999) and Nassarius reticulatus Linnaeus, 1758 from the north-west of Portugal (Barroso & Moreira, 1998). In vermetids, the annual reproductive cycle has been studied in Vermetus triquetrus Bivona, 1832, Dendropoma petraeum (Monterosato, 1848) and Serpulorbis arenaria Linnaeus, 1767, three species from the coast of Spain (Calvo et al , 1998; Calvo, 1999; Calvo & Templado, 2004a, b). Strathmann & Strathmann (2006) discussed the importance of the reproductive mode of a Hawaiian vermetid gastropod in achieving a high potential for invasion and establishment following maritime transport or natural rafting, and predicts a widespread distribution and invasion to warm waters.…”

Section: Introductionmentioning

confidence: 99%

Gametogenic cycle of the tropical vermetids Eualetes tulipa and Dendropoma corrodens (Mollusca: Caenogastropoda: Vermetidae)

2009

View full text Add to dashboard Cite

The population density, annual gametogenic cycle, and size at sexual maturity of two vermetid species, Eualetes tulipa (invasive) and Dendropoma corrodens was studied in the southern Caribbean at the Planta Centro power plant intake channel and at Punta Mayorquina, Morrocoy National Park, respectively. Minimal size of mature females of E. tulipa and D. corrodens was 5.0 and 0.7 cm in body length respectively. The gonad represented between 44 to 47% of total body length, while it represented between 15 to 18% of total body volume (for both males and females). Gonad volume was significantly related to total body volume. A significant quadratic relationship between the number of capsules and female body volume was obtained for E. tulipa, indicating that females measuring 6-10 cm in body length are those that have the highest number of egg capsules. Females larger than 11 cm have a lower fecundity in terms of brooded capsules. Gonad sections of males and females of both species showed that several gametogenesis stages are simultaneous within the same individual. In the female, germ cells, oogoniums and primary oocytes with yolk granules were observed simultaneously. In the male, the spermatogonium, primary and secondary spermatocytes, spermatids and sperm cells were also observed within one gonad. The same pattern was observed throughout the year, showing no maturation/resting period or annual cycle. The area covered by D. corrodens was about 700 m 2 with a mean density of 13,000 ind/m 2 . The area covered by the invasive E. tulipa was at least about 1000 m 2 , with a density of 27,000 to 29,000 ind/m 2 in the first 3 m of depth. A follow up of the E. tulipa population showed that its density is increasing in time and has doubled in 20 years. This population increment could be related to an increase in organic suspended matter as evidenced in the region.

show abstract

Section: Introductionmentioning

confidence: 99%

Gametogenic cycle of the tropical vermetids Eualetes tulipa and Dendropoma corrodens (Mollusca: Caenogastropoda: Vermetidae)

2009

View full text Add to dashboard Cite

show abstract

“…Once present in a new location, founder populations consisting of direct developing species can also experience rapid rates of population growth associated with the low mobility of their life-history stages which ensure high encounter frequencies between individuals for mating (Johannesson, 1988). Traits associated with vermetids including intracapsular development within the protective confines of their shell tube, long term sperm storage, and hermaphroditism in some species (Calvo & Templado, 2005; Strathmann & Strathmann, 2006) can also be viewed as traits enhancing rapid population growth of founding populations.…”

Section: Discussionmentioning

confidence: 99%

Non-native molluscan colonizers on deliberately placed shipwrecks in the Florida Keys, with description of a new species of potentially invasive worm-snail (Gastropoda: Vermetidae)

Bieler

Granados-Cifuentes

Rawlings

et al. 2017

PeerJ

View full text Add to dashboard Cite

Artificial reefs created by deliberately sinking ships off the coast of the Florida Keys island chain are providing new habitat for marine invertebrates. This newly developing fouling community includes the previously reported invasive orange tube coral Tubastraea coccinea and the non-native giant foam oyster Hyotissa hyotis. New SCUBA-based surveys involving five shipwrecks spanning the upper, middle, and lower Florida Keys, show T. coccinea now also established in the lower Keys and H. hyotis likewise extending to new sites. Two additional mollusks found on the artificial reefs, the amathinid gastropod Cyclothyca pacei and gryphaeid oyster Hyotissa mcgintyi, the latter also common in the natural reef areas, are discussed as potentially non-native. A new species of sessile, suspension-feeding, worm-snail, Thylacodes vandyensis Bieler, Rawlings & Collins n. sp. (Vermetidae), is described from the wreck of the USNS Vandenberg off Key West and discussed as potentially invasive. This new species is compared morphologically and by DNA barcode markers to other known members of the genus, and may be a recent arrival from the Pacific Ocean. Thylacodes vandyensis is polychromatic, with individuals varying in both overall head-foot coloration and mantle margin color pattern. Females brood stalked egg capsules attached to their shell within the confines of their mantle cavity, and give rise to crawl-away juveniles. Such direct-developing species have the demonstrated capacity for colonizing habitats isolated far from their native ranges and establishing rapidly growing founder populations. Vermetid gastropods are common components of the marine fouling community in warm temperate and tropical waters and, as such, have been tagged as potentially invasive or with a high potential to be invasive in the Pacific Ocean. As vermetids can influence coral growth/composition in the Pacific and have been reported serving as intermediate hosts for blood flukes of loggerhead turtles, such new arrivals in the Florida Keys National Marine Sanctuary are of concern. Growing evidence indicates that artificial reefs can act as permanent way-stations for arriving non-natives, providing nurseries within which populations may grow in an environment with reduced competition compared to native habitats. Consequently, artificial reefs can act as sentinels for the appearance of new species. Ongoing monitoring of the developing molluscan fauna on the artificial reefs of the Florida Keys is necessary to recognize new invasions and identify potential eradication targets, thereby assuring the health of the nearby natural barrier reef.

show abstract

“…To our knowledge, in natural mollusc populations, this phenomenon has only been reported in the oysters C. gigas (Park et al 2012, Yasuoka & Yusa 2016 and C. virginica (Galtsoff 1937, Haley 1979, Kennedy 1983, in the vermetid gastropod Thylacodes arenarius (Linnaeus, 1758) (Calvo & Templado 2005), and in the patellid limpet Patella vulgata Linnaeus, 1758 (Le Quesne Kuwamura et al 1994, Nakashima et al 1995. In our in situ experiments, the number of individuals experiencing sex change was small and the body size of experimental individuals did not vary much.…”

mentioning

confidence: 85%

Direct evidence of bi-directional sex change in natural populations of the oysters <i>Saccostrea kegaki</i> and <i>S. mordax</i>

Yasuoka

Yusa

2017

Plankton Benthos Res

View full text Add to dashboard Cite

Two Saccostrea oysters (S. glomerata and S. cucullata) are considered to be protandric hermaphrodites based on indirect observations. However, no other information is available on the sexual systems of Saccostrea oysters and the potential for bidirectional sex change has not previously been reported in them. Therefore, the present study was undertaken to investigate the sexual systems of S. kegaki and S. mordax in western Japan, utilizing field sampling and in situ experiments. In the field sampling, shell length (SL) and sex were determined during the reproductive season of these oysters (June-October) in 2012. Then, sex change was directly observed between 2013 and 2016 by determining the sex of individuals through gonadal biopsy, re-attaching the individuals in the field, collecting the survivors in the following year, and determining their sex by dissection. In both species, the proportion of males decreased with increasing SL, although the SL of males and females greatly overlapped. Direct observations showed that both male-to-female and female-to-male sex change occurred. Thus, our results indicated that both Saccostrea species tend to be protandric, but have the ability to change sex in both directions under natural conditions.

show abstract

Reproduction and sex reversal of the solitary vermetid gastropod Serpulorbis arenarius

Cited by 16 publications

References 28 publications

Gametogenic cycle of the tropical vermetids Eualetes tulipa and Dendropoma corrodens (Mollusca: Caenogastropoda: Vermetidae)

Gametogenic cycle of the tropical vermetids Eualetes tulipa and Dendropoma corrodens (Mollusca: Caenogastropoda: Vermetidae)

Non-native molluscan colonizers on deliberately placed shipwrecks in the Florida Keys, with description of a new species of potentially invasive worm-snail (Gastropoda: Vermetidae)

Direct evidence of bi-directional sex change in natural populations of the oysters <i>Saccostrea kegaki</i> and <i>S. mordax</i>

Contact Info

Product

Resources

About