Sexual reproduction of the brooding sponge Rhopaloeides odorabile

Whalan, Steve W; Battershill, Chris; Nys, Rocky de

doi:10.1007/s00338-007-0236-8

Cited by 58 publications

(73 citation statements)

References 40 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the main study, tissue samples were collected by divers on SCUBA by cutting a small piece of tissue (approximately 4 cm 3 ) haphazardly from each individual. The excised tissue was placed into histology cassettes and fixed in gonad fixative (FAACC -100 ml = 10 ml of 10% formaldehyde solution, 5 ml of 5% glacial acetic acid, 1.3 g of calcium chloride dihydrate and 85 ml of tap water) after collection (Fromont 1999, Whalan et al 2007. After 48 h, samples were transferred into 70% ethanol until histological preparation.…”

Section: Samplingmentioning

confidence: 99%

“…Reproductive elements in some species of sponge can either occur throughout the mesohyl (Bergquist 1978) or be isolated in certain areas (Fromont 1999), and a pilot study was undertaken to determine the distribution of reproductive elements within the mesohyl for both species of Haliclona studied (Whalan et al 2007). Tissue was taken from the sponge surface (top 5 cm), from the middle of the mesohyl and from basal regions of reproductive individuals (N = 10 from each species).…”

Section: Samplingmentioning

confidence: 99%

“…Samples were blocked in paraffin wax and sectioned at 8 µm with a microtome. Tissue sections were stained with haematoxylin & eosin, mounted and examined by light microscopy to identify reproductive elements (Fromont 1999, Whalan et al 2007.…”

Section: Samplingmentioning

confidence: 99%

“…Initiation and regulation of sponge reproduction has been linked to environmental factors, including water temperature (Simpson 1980, Fromont 1994b, Witte et al 1994, Fell 1995, Corriero et al 1998, Ereskovsky 2000, Mercurio et al 2007), food availability (Simpson 1980, Witte 1996, photoperiod and lunar phase (Simpson 1980, Fromont 1994a, Usher et al 2004. Despite broad biological knowledge, understanding of the role of reproduction in the structuring and maintenance of sponge populations is limited (but see Whalan et al 2005, Zilberberg et al 2006, Riesgo et al 2007, Whalan et al 2007.…”

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Strategies, patterns and environmental cues for reproduction in two temperate haliclonid sponges

Abdo¹,

Fromont²,

McDonald³

2008

Aquat. Biol.

View full text Add to dashboard Cite

The reproductive biology of 2 haliclonid sponges was examined over a 2 yr period. Histological samples of Haliclona sp. 1 (green Haliclona) and Haliclona sp. 2 (brown Haliclona) from tagged and haphazardly sampled individuals of both species were examined using light microscopy. Interest in these 2 sympatric species is high, due to the potent and unique bioactive compound (salicylihalamide A) they produce, hence the need to understand the reproductive biology of both species to ensure their proper conservation and management. Green Haliclona is viviparous, with both gonochoric and hermaphroditic individuals in the sponges sampled. Brown Haliclona is also viviparous and is clearly a gonochoric species. Only decreasing wave height showed a significant correlation to gametogenesis, but the onset and progression of reproduction in both species coincided with increases in water temperature and photoperiod. Oogenesis for both species extended from November to April. Spermatogenesis extended over 3 mo for green Haliclona (January to March) and 4 mo for brown Haliclona (January to April). Embryogenesis within brood chambers started in January and extended over 4 mo in green Haliclona and 5 mo in brown Haliclona. The parenchymellae larvae of green Haliclona were observed in tissue samples for 2 mo compared to 4 mo for brown Haliclona. The reproductive output of each species was similar; however, female reproductive output at 2.9% (green Haliclona) and 2.4% (brown Haliclona) of the mesohyl was much lower than that of other viviparous species. Male reproductive output (2.3 and 2.4% for green and brown Haliclona, respectively) compares favourably to that of oviparous species. The high reproductive output of males and the timing of reproduction in both species of sponge appears to help in reducing the risk of unsuccessful fertilisation and lower the probability of larvae being released into unfavourable conditions. KEY WORDS: Haliclona · Sexual · Fecundity · GametogenesisResale or republication not permitted without written consent of the publisher OPEN PEN ACCESS CCESS

show abstract

Section: Samplingmentioning

confidence: 99%

Section: Samplingmentioning

confidence: 99%

Section: Samplingmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Strategies, patterns and environmental cues for reproduction in two temperate haliclonid sponges

Abdo¹,

Fromont²,

McDonald³

2008

Aquat. Biol.

View full text Add to dashboard Cite

show abstract

“…Proportions were used instead of absolute oocyte area to standardize reproductive output among colonies as coral polyp sizes varied among colonies. Similar methods have been used to compare reproductive output in sponges (Whalan et al 2007, Leong & Pawlik 2011. Comparisons were carried out with arcsine-transformed data using the Student's t-test.…”

Section: Does Mycale Laevis Increase Coral Reproductive Output?mentioning

confidence: 99%

Friend or foe? No evidence that association with the sponge Mycale laevis provides a benefit to corals of the genus Montastraea

Loh¹,

Pawlik

2012

Mar. Ecol. Prog. Ser.

View full text Add to dashboard Cite

Resource availability modulates the effect of body size on reproductive development

Gergely

Tökölyi

2023

Ecology and Evolution

View full text Add to dashboard Cite

Within-species variation in animal body size predicts major differences in life history, for example, in reproductive development, fecundity, and even longevity. Purely from an energetic perspective, large size could entail larger energy reserves, fuelling different life functions, such as reproduction and survival (the "energy reserve" hypothesis).Conversely, larger body size could demand more energy for maintenance, and larger individuals might do worse in reproduction and survival under resource shortage (the "energy demand" hypothesis). Disentangling these alternative hypotheses is difficult because large size often correlates with better resource availability during growth, which could mask direct effects of body size on fitness traits. Here, we used experimental body size manipulation in the freshwater cnidarian Hydra oligactis, coupled with manipulation of resource (food) availability to separate direct effects of body size from resource availability on fitness traits (sexual development time, fecundity, and survival). We found significant interaction between body size and food availability in sexual development time in both males and females, such that large individuals responded less strongly to variation in resource availability. These results are consistent with an energy reserve effect of large size in Hydra. Surprisingly, the response was different in males and females: small and starved females delayed their reproduction, while small and starved males developed reproductive organs faster. In case of fecundity and survival, both size and food availability had significant effects, but we detected no interaction between them. Our observations suggest that in Hydra, small individuals are sensitive to fluctuations in resource availability, but these small individuals are able to adjust their reproductive development to maintain fitness.

show abstract

Sexual reproduction of the brooding sponge Rhopaloeides odorabile

Cited by 58 publications

References 40 publications

Strategies, patterns and environmental cues for reproduction in two temperate haliclonid sponges

Strategies, patterns and environmental cues for reproduction in two temperate haliclonid sponges

Friend or foe? No evidence that association with the sponge Mycale laevis provides a benefit to corals of the genus Montastraea

Resource availability modulates the effect of body size on reproductive development

Contact Info

Product

Resources

About