The Ecology of Lough Ine: IX. The Flora and Fauna Associated with Undergrowth-forming Algae in the Rapids Area

Sloane, J. F.; Bassindale, R.; Davenport, Elizabeth; Ebling, F. J.; Kitching, J. A.

doi:10.2307/2257268

Cited by 27 publications

(10 citation statements)

References 7 publications

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“…This sponge is fast‐growing, as is H. bowerbanki . They are both commonly found growing on the fronds and holdfasts of brown algae (such as Ascophyllum nodosum ), which is abundant only in the surface waters (Sloane et al. , 1961).…”

Section: Discussionmentioning

confidence: 99%

The distribution and prevalence of sponges in relation to environmental gradients within a temperate sea lough: vertical cliff surfaces

Bell¹,

Barnes²

2000

Diversity and Distributions

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The prevalence and distribution of sponges was surveyed on vertical cliff surfaces at Lough Hyne Marine Nature Reserve, Co. Cork, Ireland. The number of sponge species was recorded at 6-metre depth intervals at four sites within Lough Hyne, and at one site on the adjacent Atlantic coastline to examine differences in abundance and zonation patterns. Sites ranged from an exposed turbulent regime to sheltered, sedimented environments. Individual species showed different distributions and prevalence between sites and with increasing depth. Greatest differences were observed between the most-and leastdisturbed sites. Distinct sponge zonation patterns were evident at all sites sampled. Twenty-five species were considered dominant at all five sites with the remaining 48 species considered rare. Only four of the 25 most-dominant species occurred at the site experiencing the most turbulent flow conditions, whereas 12 species were found at the site of unidirectional fast flow. At sites of moderate to slight water movement and high sedimentation, between 18 and 24 of the most dominant species were present. Encrusting forms constituted high proportions of sponge communities at all five sites sampled (although consisting of different species). At sites of turbulent and unidirectional fast flow massive forms also dominated whereas at the least turbulent sites, where sedimentation was high, arborescent sponges were abundant. Few species showed exclusive distribution to a single depth and site, but there was some degree of correlation between species distributions and abiotic factors such as sedimentation rate and flow regimes. Sponge distributions and densities are discussed with respect to the suitability of species' morphologies to particular environments, intra-specific and inter-specific competition and physiological adaptations that enable them to survive in different habitats.

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Section: Discussionmentioning

confidence: 99%

The distribution and prevalence of sponges in relation to environmental gradients within a temperate sea lough: vertical cliff surfaces

Bell¹,

Barnes²

2000

Diversity and Distributions

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“…Previous ecological studies of caprellids have emphasized physical factors such as wave exposure and water movement as factors regulating caprellid distribution (Round et al, 1961;Sloane et al, 1961;Nagle, 1968;Hirayama & Kikuchi, 1980;Takeuchi et al, 1987;Takeuchi & Hirano, 1995). With respect to microhabitat use, Caine (1979) found a di¡erence between the population structures of Caprella laeviuscula Mayer on Zostera marina L. leaves with the hydroid Obelia dichotoma (L.) and without, particularly in the abundance of young.…”

Section: Pereopodsmentioning

confidence: 99%

Morphological characteristics of young, maternal care behaviour and microhabitat use by caprellid amphipods

Aoki

1999

J. Mar. Biol. Ass.

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Microhabitat use by nine species of caprellid amphipods in the genus Caprella inhabiting a Japanese Sargassum bed could be divided into three major categories. Differences in the patterns of use were closely related to the nature of the mother–young association and morphological characteristics of young. Pattern A was shown by three species Caprella danilevskii, C. okadai and C. subinermis that produced large first instar young (>1.6 mm in body length, BL) with no maternal care, and directly use Sargassum thalli as habitat substrata throughout their lives. Two different patterns of microhabitat use occur in the six other species, which produce small first instar young (<1.3 mm BL) and have trouble using Sargassum thalli as their primary habitat. Pattern B comprised of C. decipiens, C. monoceros and C. scaura in which females care for their young until they become large enough to disperse onto the seaweed thalli. The first instar young of these three maternal care species have specialized pereopods. In Caprella monoceros and C. scaura, which show a ‘cling-to-mother’ type of maternal care, each pereopod has a concaved margin on the propodus and a long dactylus, well adapted for clinging to the mother, and C. decipiens, which show a ‘stay-around-mother’ type of maternal care, have comparatively slender and longer pereopods to hold onto seaweed branches near their mother. Pattern C included C. arimotoi, C. glabra and C. penantis which showed no maternal care and use thin branches of epizoites such as epiphytic hydroids as their primary substrata. It is concluded that caprellids that live on seaweed with thick thalli and branches such as Sargassum patens have different solutions to the problem of where the small first instar young can live: species with larger young emerge directly onto seaweed thalli, but species with smaller young use an epiphytic secondary habitat or depend on maternal care.

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“…8) but the scarcity of the latter on the holdfast suggests that it is less tolerant of deposited material than both C. eburnea and Scrupocellaria scruposa. Sloane et al (1961) concluded that S 1 . chelata favoured an intermediate degree of exposure, a preference agreeing with its position on Nemertesia.…”

Section: The Hydroidsmentioning

confidence: 99%

“…8). E. pilosa is known to prefer the faster-flowing waters of Lough Ine (Ebling et al, i960;Sloane et al, 1961) where appreciable deposition is prevented, and Rasmussen (1973) found E. pilosa to be most common where it is exposed to currents or wave action.…”

Section: The Hydroidsmentioning

confidence: 99%

The distribution of epizoites on the hydroid Nemertesia antennina (L.)

Hughes¹

1975

J. Mar. Biol. Ass.

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Studies on the distribution of epifaunal species on their host have concentrated on those of plants, particularly laminarian algae (Fowell, 1939; Ebling, Kitching, Purchon& Bassindale, 1948; Sloane, Ebling, Kitching & Lilly, 1957; Scarratt, 1961, Ph.D. Thesis, University College of Wales, Aberystwyth; Norton, 1971), Sargassum algae (Kato et al., 1961; Nishihira, 1971; Ryland, 1974) and eel grasses (Nishihira, 1968; Nagle, 1968). Recently, however, the distributions of the animals living on ascidians Microcosmus sp. (Monniot, 1965) and the bryozoan Flustra foliacea (L.) (Stebbing, 1971) have been investigated.

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The Ecology of Lough Ine: IX. The Flora and Fauna Associated with Undergrowth-forming Algae in the Rapids Area

Cited by 27 publications

References 7 publications

The distribution and prevalence of sponges in relation to environmental gradients within a temperate sea lough: vertical cliff surfaces

The distribution and prevalence of sponges in relation to environmental gradients within a temperate sea lough: vertical cliff surfaces

Morphological characteristics of young, maternal care behaviour and microhabitat use by caprellid amphipods

The distribution of epizoites on the hydroid Nemertesia antennina (L.)

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