The morphology and independent origin of ovoviviparity in Tiphobia and Lavigeria (Caenogastropoda: Cerithioidea: Paludomidae) from Lake Tanganyika

Strong, Ellen E.; Glaubrecht, Matthias

doi:10.1016/j.ode.2006.02.003

Cited by 19 publications

(27 citation statements)

References 47 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…There are, however, some notable exceptions as, for example, among the exclusively marine aplacophoran molluscs few brood in the ventro‐posterior pallium (Okusu 2002) and among marine caenogastropods some are known to brood eggs and/or embryos in incubatory structures (uterus, cephalic pouches or under their shell), e.g. all Planaxidae and some Littorinidae, Turritellidae and one species of the Siliquariidae (Houbrick 1987; Glaubrecht 1996; and Strong & Glaubrecht 2006, literature references therein). Its not intended to give a review of brooding in marine molluscs, however, brooding is found in certain groups as for example several species of marine chitons (Buckland‐Nicks & Eernisse 1993), many small deep‐sea protobranchs (e.g.…”

Section: Introductionmentioning

confidence: 99%

Brood care among basommatophorans: a unique reproductive strategy in the freshwater limpet snail Protancylus (Heterobranchia: Protancylidae), endemic to ancient lakes on Sulawesi, Indonesia

Albrecht

Glaubrecht²

2006

Acta Zoologica

View full text Add to dashboard Cite

Albrecht, C. and Glaubrecht, M. 2006. Brood care among basommatophorans: a unique reproductive strategy in the freshwater limpet snail Protancylus (Heterobranchia: Protancylidae), endemic to ancient lakes on Sulawesi, Indonesia. -Acta Zoologica (Stockholm) 87 : 49 -58.In molluscan taxa inhabiting marine environments oviparity and reproduction via planktonic larvae is predominant while incubation and viviparity is most frequently found in taxa inhabiting brackish or freshwater aquatic habitats. Brooding has evolved repeatedly and independently in several limnic taxa among Bivalvia and Gastropoda. However, among basommatophoran gastropods no such cases were yet known. We here report on a unique reproductive strategy involving brood care in the lacustrine freshwater limpet genus Protancylus , endemic to the ancient lakes on central Sulawesi (former Celebes), Indonesia, namely the Lake Poso and the Malili lake system, because this constitutes the first known case of this behaviour among the Basommatophora. Protancylus live exclusively as epizoans on those pachychilid gastropods of the viviparous genus Tylomelania , also a Sulawesi endemic species, that inhabit mostly soft substrates. We found that the two known species Protancylus pileolus from Lake Poso and P. adhaerens from the Malili lake system both retain gelatinous egg strings underneath their outer mantle, where up to 15 (mostly eight or nine) shelled juveniles are brooded. Nourishment is provided within the egg capsule only. Thus, brood care in Protancylus resembles the reproductive strategy found recently among pachychilid gastropods Jagora from the Philippines, but differs from euviviparous (i.e. matrotrophic) incubation among thiarid gastropods possessing a brood pouch with juveniles being nourished via a 'pseudoplacenta' in several taxa.

show abstract

Section: Introductionmentioning

confidence: 99%

Brood care among basommatophorans: a unique reproductive strategy in the freshwater limpet snail Protancylus (Heterobranchia: Protancylidae), endemic to ancient lakes on Sulawesi, Indonesia

Albrecht

Glaubrecht²

2006

Acta Zoologica

View full text Add to dashboard Cite

show abstract

“…Although it is not common for cerithioideans to lack seminal receptacle(s), all that do so (e.g., Tiphobia -Paludomidae, some Pachychilidae, many Thiaridae) are currently understood to store only unorientated sperm (Starmühlner 1976;Glaubrecht 2001, 2007;Strong and Glaubrecht 2006;Gomez et al 2011). However, not all studies of cerithioidean reproductive anatomy are explicit as to the nature of sperm storage or it was not examined histologically; occasionally, the sperm pockets are depleted and do not allow an assessment of their contents.…”

Section: Discussionmentioning

confidence: 99%

Seasonal reproductive anatomy and sperm storage in pleurocerid gastropods (Cerithioidea: Pleuroceridae)

Whelan

Strong

2014

Can. J. Zool.

View full text Add to dashboard Cite

Life histories, including anatomy and behavior, are a critically understudied component of gastropod biology, especially for imperiled freshwater species of Pleuroceridae. This aspect of their biology provides important insights into understanding how evolution has shaped optimal reproductive success and is critical for informing management and conservation strategies. One particularly understudied facet is seasonal variation in reproductive form and function. For example, some have hypothesized that females store sperm overwinter or longer, but no study has explored seasonal variation in accessory reproductive anatomy. We examined the gross anatomy and fine structure of female accessory reproductive structures (pallial oviduct, ovipositor) of four species in two genera (Leptoxis ampla (Anthony, 1855), Pleurocera prasinata (Conrad, 1834), P. pyrenella (Conrad, 1834) and P. canaliculata (Say, 1821)). Histological analyses show that despite lacking a seminal receptacle, females of these species are capable of storing orientated sperm in their spermatophore bursa. Additionally, we found that they undergo conspicuous seasonal atrophy of the pallial oviduct outside the reproductive season, and there is no evidence that they overwinter sperm. The reallocation of resources primarily to somatic functions outside of the egg-laying season is likely an adaptation that increases survival chances during winter months. . 1964. The radula, genital system, and external morphology in Mudalia potosiensis (Lea) 1841 (Gastropoda: Prosobranchiata: Pleuroceridae) with life history notes. Trans. Am. Microsc. Soc. 83(1): 41-62. Kirkwood, T.B.L., and Shanley, D.P. 2005. Food restriction, evolution and ageing. Mech. Ageing Dev. 126(9):

show abstract

“…Material was evaluated with reference to the modern taxonomy (Mandahl-Barth, 1972;Brown, 1994;West et al, 2003;Strong & Glaubrecht, 2007Schultheiß et al, 2009Schultheiß et al, , 2011, which admittedly is not fully resolved and stabilised, certainly not for Lake Tanganyika (Michel, 2004;Glaubrecht, 2008). This implies that the Tanganyikan deep-water gastropod assemblage conservatively accepted here may be subject to change when other taxa, which appear to have a wide depth distribution, are subjected to further systematic research.…”

Section: Methodsmentioning

confidence: 99%

“…A. Todd, unpubl. Later, it was found at 30 m in 1969 by Wetterberg (collections of the Centre for Health Research and Development), at 70-90 m in 1986 by Kat (Strong & Glaubrecht, 2007), at 30-53 m, with one record at 100 m in 1989-95 (West, 1997), and at 80 m in 2000 by Wilson (Strong & Glaubrecht, 2010). Moore (1898a) recorded these three species down to depths of c. 300 m in the southern part of the lake and elsewhere stated explicitly that P. iridescens was sampled alive from substrata at depths of 91-305 m (Moore, 1899), T. horei from 152 to 260 m (Moore, 1898c), and B. howesi from depths of 289 m (Moore, 1898b) and 243 m (Moore, 1898c).…”

Section: Trends In Deep-water Gastropodsmentioning

confidence: 98%

“…S. Cohen, unpubl. For Lake Tanganyika, data are from Moore (1898aMoore ( ,c, 1899, Stappers (in 1910;Brooks, 1950 andLeloup, 1953), Beauchamp (in 1937;Brooks, 1950), Leloup (1953), Kat (in 1986;Strong & Glaubrecht, 2007), West in 1989(West, 1997, Verschuren in 1998(D. Verschuren, unpubl. Even though the population densities and the distribution of benthic animals are remarkably variable, both spatially and over time (Hewitt, Thrush & Cummings, 2001), decreasing sampling success suggests a decline in abundance.…”

Section: Trends In Deep-water Gastropodsmentioning

confidence: 99%

See 1 more Smart Citation

Does the decline of gastropods in deep water herald ecosystem change in Lakes Malawi and Tanganyika?

et al. 2012

View full text Add to dashboard Cite

Summary 1. Ancient, deep lakes have traditionally been considered as stable, ecological islands, well buffered from environmental change because of their great depth. However, they are not immune to anthropogenic and climatic stress. Ecosystems of the permanently stratified warm Lakes Malawi and Tanganyika in the Great East African Rift are particularly delicate. Their stratification regime has historically limited the distribution of benthic biota to a ‘bathtub ring of biodiversity’, namely substrata in the upper, oxygenated water layer. 2. We use historical data on the endemic deep‐water molluscs of these lakes to assess present‐day stress on their benthic ecosystems. During the 20th century, these molluscs have probably decreased in abundance and migrated to shallower water. 3. These apparent trends have a significance beyond species‐based conservation, foremost because deep‐water organisms heavily rely on the position and temporal stability of the oxycline and therefore provide an early warning of large‐scale changes in the distribution of dissolved oxygen. Oxygen demands have increased in the East African Great Lakes over the last century whereas ventilation of deep water has remained the same or declined. 4. The combination of these factors is resulting in a narrowing of the ring of biodiversity and a changed nutrient flux through this ring. Reduction in the habitat available inevitably puts biota at risk, whereas changes in nutrient flux may cause shifts in the entire ecosystem or the collapse of parts of it. 5. Considering the socioeconomic value of these lakes and the potentially grave implications for their faunal biodiversity and entire ecosystems, existing evidence of faunal decline, especially in taxa that depend strongly on the stratification regime, is of great concern. Moreover, because the factors responsible are widespread and include surface‐water warming, increased run‐off and eutrophication, respiration stress may also develop in other tropical and subtropical lakes.

show abstract

The morphology and independent origin of ovoviviparity in Tiphobia and Lavigeria (Caenogastropoda: Cerithioidea: Paludomidae) from Lake Tanganyika

Cited by 19 publications

References 47 publications

Brood care among basommatophorans: a unique reproductive strategy in the freshwater limpet snail Protancylus (Heterobranchia: Protancylidae), endemic to ancient lakes on Sulawesi, Indonesia

Brood care among basommatophorans: a unique reproductive strategy in the freshwater limpet snail Protancylus (Heterobranchia: Protancylidae), endemic to ancient lakes on Sulawesi, Indonesia

Seasonal reproductive anatomy and sperm storage in pleurocerid gastropods (Cerithioidea: Pleuroceridae)

Does the decline of gastropods in deep water herald ecosystem change in Lakes Malawi and Tanganyika?

Contact Info

Product

Resources

About