Growth and reproduction of <i>Hymeniacidon perleve</i> (Montagu) (Porifera) in Langstone Harbour Hampshire*

Stone, Alan

doi:10.1111/j.1469-7998.1970.tb02048.x

Cited by 63 publications

(46 citation statements)

References 13 publications

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“…This plasticity is able to control population dynamics and spatial interaction among species, as recently remarked by Bell [30] who confirmed previous observations [11,31,32] about the seasonally available space due to sponge tissue contraction periods.…”

Section: Discussionsupporting

confidence: 74%

“…In this regard, Hymeniacidon perlevis, in a similar manner to other demosponges [21,22] takes advantages of both mechanisms [11].…”

Section: Discussionmentioning

confidence: 99%

“…Ova are fertilised in the sponge body, where they give rise to ciliated larvae [17] of the parenchymella type. In the Portsmouth area, H. perlevis has been reported to be abundant in the summer [14] with a seasonal variation in growth and population size [11].…”

Section: Studied Speciesmentioning

confidence: 99%

“…Spicules and spicule bundles are made up of slightly curved styles, often with a faint tylote swelling subterminally [15]. The sponge has a wide distribution, it is viviparous and can be considered as cosmopolitan [3,11,16]. Ova are fertilised in the sponge body, where they give rise to ciliated larvae [17] of the parenchymella type.…”

Section: Studied Speciesmentioning

confidence: 99%

“…Exhaustive data on the reproduction of H. perlevis was reported by Stone [11] regarding an England population living in Langstone Harbour, by examining the presence of embryos in specimens and the larval settlement on suspended plates. In this habitat, the sponge population is essentially maintained by fragmentation, a process supported by the high regenerative properties of the sponge, rather than by sexual reproduction.…”

Section: Introductionmentioning

confidence: 99%

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Reproduction of the Intertidal Sponge Hymeniacidon perlevis (Montagu)Along a Bathymetric Gradient

Gaino¹,

Cardone²,

Corriero³

2010

TOMBJ

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Abstract:The reproductive cycle of the demosponge Hymeniacidon perlevis (Montagu) was investigated at the Mar Piccolo di Taranto (Ionian Sea, Apulian). According to the distribution of the specimens, along a bathymetric gradient, sponges have been subdivided in two groups, named group A and group B. The former was made up of specimens that are usually exposed in the air when there is a low water level and the latter by specimens that are constantly submerged. Monthly monitoring (February 2006 -January 2007 of twenty tagged specimens (ten in each group) was carried out in order to compare the reproductive efforts in the two groups. The reproductive pattern differed slightly between the two groups; the majority of the females in group B restrict oocyte production till May. In addition, group A exhibits a significantly higher density of sexual elements, than those belonging to group B. It was hypothesised that the sexual activity of the submerged specimens, living close to the soft bottom, could be influenced by severe anoxic crises due to periodic algal decay, whereas the intertidal specimens, located some decimetres off the soft bottom, and subjected to the moderate water movement, were not affected. The thick algal assemblage associated with the intertidal specimens gives protection against dehydration and solar irradiation during the prolonged periods of air exposure. By September, none of the monitored specimens had survived. The finding of newly developing small specimens in late winter supports a possible colonisation from residual sponge fragments dispersed before mass mortality.

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Section: Discussionsupporting

confidence: 74%

“…In this regard, Hymeniacidon perlevis, in a similar manner to other demosponges [21,22] takes advantages of both mechanisms [11].…”

Section: Discussionmentioning

confidence: 99%

Section: Studied Speciesmentioning

confidence: 99%

Section: Studied Speciesmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Reproduction of the Intertidal Sponge Hymeniacidon perlevis (Montagu)Along a Bathymetric Gradient

Gaino¹,

Cardone²,

Corriero³

2010

TOMBJ

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Fixed‐station monitoring of a harbour wall community: the utility of low‐cost photomosaics and scuba on hard‐substrata

Rein¹,

Brown²,

Schoeman³

et al. 2011

Aquatic Conservation

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ABSTRACT1. In marine temperate waters, the diverse epibenthic communities of hard substrata require robust, efficient, high-resolution methods to better understand community dynamics and biological processes, such as growth, recruitment and mortality that drive changes within communities.2. The epibenthic community of a harbour wall was monitored from fixed stations over three seasons in 2009 to evaluate the utility of a high-resolution photomosaic method. The community was described by visually estimating cover and abundance of taxa within the photomosaics. In addition, areas occupied by the solitary cup coral Caryophyllia smithii, the encrusting sponge Hymeniacidon perleve, and the red macroalga Plocamium cartilagineum were digitized and their seasonal growth, recruitment and mortality estimated over the study period.3. Significant changes occurred to the community in every season. The fewest number of taxa and the lowest total taxa cover was observed in the winter. In the spring, there was significant growth of red macroalgae, brown macroalgae, and ascidian taxa. In the summer there was significant growth of green macroalgae and turf taxa, while red macroalgae experienced photoinhibition, and ascidians significantly declined in abundance.4. The photomosaics enabled the extraction of data at a high taxonomic resolution, reduced the effects of water-column turbidity, and through digitization, enabled estimation of the seasonal growth, recruitment, and mortality of C. smithii, H. perleve and P. cartilagineum. However, the spring and summer canopies of macroalgae and turf obscured the detection of many understory taxa, and thus, limited the accuracy of understorey assessments. Provided the limitations of photomosaics are recognized, the method demonstrated in this study has many potential benefits of advantage for fixed-station monitoring studies in temperate waters.

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Sexual Reproduction, Larval Morphology and Behaviour in Demosponges from the Southwest of the Netherlands

Wapstra

Soest

1987

Taxonomy of Porifera

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Growth and reproduction of Hymeniacidon perleve (Montagu) (Porifera) in Langstone Harbour Hampshire*

Cited by 63 publications

References 13 publications

Reproduction of the Intertidal Sponge Hymeniacidon perlevis (Montagu)Along a Bathymetric Gradient

Reproduction of the Intertidal Sponge Hymeniacidon perlevis (Montagu)Along a Bathymetric Gradient

Fixed‐station monitoring of a harbour wall community: the utility of low‐cost photomosaics and scuba on hard‐substrata

Sexual Reproduction, Larval Morphology and Behaviour in Demosponges from the Southwest of the Netherlands

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