Benthic Substrates: Their Effect on Fresh‐Water Mollusca

Harman, Willard N.

doi:10.2307/1934081

Cited by 117 publications

(60 citation statements)

References 5 publications

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“…1979 distribution of various animals . Studies on substratum preferendum by invertebrates are mostly confined to freshwater poikilotherms (Clampitt, 1970(Clampitt, , 1973Harman, 1972 ;Hanumante et al, 1977) . The nature of the substrate is an important factor affecting the distribution of many crustaceans including cumaceans (Dixon,1 944) , amphipods (Sameoto, 1969), isopods (Crawford, 1937) and decapods, particularly crabs and lobsters (Teal, 1958 ;Cobb, 1971) .…”

Section: Introductionmentioning

confidence: 99%

Studies on the behaviour and substratum preference in juveniles of the marine prawn, Metapenaeus monoceros (Fabricius)

1979

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Circadian rhythmicity in the behaviour of the marine prawn, Metapenaeus monoceros (Fab) and its substratum preference has been observed under laboratory conditions . In the morning at 9 . a .m . 80%o prawns remain buried and in the afternoon at 3 p .m . 6o% burrowing was observed . A contrasting situation was observed in the night i .e . 17% burrowing at 9 p .m . and 30% burrowing at 3 a .m, was registered . In the second set of experiments juveniles were subjected to four types of substrata viz . mud, black fine sand, white coarse sand and stones . It was noted that M. monoceros showed more affinity towards the mud and less preference to other substrata . The obtained results are discussed to provide clues for prawn fishing .

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Section: Introductionmentioning

confidence: 99%

Studies on the behaviour and substratum preference in juveniles of the marine prawn, Metapenaeus monoceros (Fabricius)

1979

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“…Such factors could include average temperature, annual rainfall and seasonality (Rohde 1992). For example, one factor that affects mussel distribution is the substrate type, since mussels require appropriate substrate to anchor (Harman 1972, Morales et al 2006. Moreover, nearby bed currents and substrate stability also may affect their distribution (Holland-Bartels 1990, Hardison & Layzer 2001.…”

mentioning

confidence: 99%

Geographic distribution of two mussel species and associated assemblages along the northern Argentinean coast

Arribas¹,

Bagur²,

Salas³

et al. 2013

Aquat. Biol.

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Ecosystem engineers can modify habitat, creating structural microhabitats. This structural complexity can affect species richness. Marine ecosystem engineers are able to produce local effects in combination with environmental variables (e.g. to create more humid habitat during low tides). We tested the hypotheses that if there is a relationship between mussel morphology and environmental factors, mussels would be larger at warmer than at cooler locations, and in areas where 2 species of mussels overlap, size and biomass will decrease and density will increase. At a smaller scale, we predicted that there is a relationship between the assemblage structure and hardness of the substratum and sediment content of a mussel bed. Using a nested design, we measured density, biomass and size of 2 species of mussels, Brachidontes rodriguezii and Perumytilus (Brachidontes) purpuratus, and diversity of species associated with mussel beds at 2 rocky intertidal sites at each of 4 shores along the northern Argentinean coast. These variables were correlated with oceanographic conditions and local characteristics. Significant correlations were found between intertidal assemblages and local factors. The largest specimens of B. rodriguezii and P. purpuratus were found at the warmer shores. In areas where they overlapped, size, biomass and density of P. purpuratus were lower, although B. rodriguezii did not change. The mean abundance of invertebrates associated with a mussel bed showed significant differences among shores. These 2 species of mytilids coexist over a small area, and although these species are very similar in their biological and ecological function, the fauna associated with their matrices are very different. KEY WORDS: Spatial variations · Rocky shores · Ecosystem engineers · Environmental factors · Benthos · Southwest AtlanticResale or republication not permitted without written consent of the publisher Aquat Biol 18: 91-103, 2013 physically harsh conditions (Murray et al. 2002). In addition, local meteorological conditions such as wind, precipitation and climate anomalies can cause large impacts on ecosystems (Mantua & Hare 2002). The species that live in these habitats survive in variable and sometimes extreme physical conditions. One factor that correlates well with the abundance and diversity of species is water temperature, particularly over latitudinal gradients (Rohde 1992). Many other factors also correlate with species distributions and patterns of abundance (e.g. physical interactions between organisms and their habitats, behavioural and physiological adaptations; Burrows & Hughes 1989).Changes in the structure of assemblages of intertidal species at the scales of hundreds of kilometres and hundreds of metres may be attributed to differences in topography, substrate type, hydrodynamic conditions, intertidal elevation, wave exposure, climatic differences or variation in primary productivity (Araujo et al. 2005, Liuzzi & López Gappa 2008, Burrows et al. 2009. Spatial variability at the scale of t...

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“…Alsterberg (1930), Macan (1950), Greenaway !1971), Thames and Lough (1974), Qussart and Kay (1980) explain the occurrence of some snails by their preference of a determined calcium ions conpeDttation in water, but other authors present the converse opinion (e.g. Harman· andBerg 1971, lassen 1975).…”

Section: Some Environmental Factors Ano the Water Snail Fauna Total Hmentioning

confidence: 99%

The influence of industrial environment on the distribution of freshwater snails in Uppersilesian Industrial Region

Strzelec¹

2016

Folia Malac.

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AbstRAct:The gastropod fauna of man-made reservoirs of the Upper Silesian Coal Basin (4 sinkhole ponds, 7 sand pits, 4 storage reservoirs) was studied. The author found the occurrence of 19 species. The most important environmental disturbances of the sinkhole ponds effected in the qualitative impoverishment of their gastropod fauna (10 species found), whereas the fauna of the sand pits and storage reservoirs, due to their more favourable water chemistry and physical conditions, was richer (15 and 17 species respectively). In all the types of reservoirs only certain species were observed to occur in mass. The analysis of influence of some environmental factors has shown that the total water hardness and the contents of calcium, iron, sulphates, chlorides, ammonia nitrogen, as well as age, size, and kind of bottom of the reservoirs do not affect the diversity of their malacofauna, what differs industrial reservoirs from natural ones. Excess of Mg ++ ions in water seems a considerably limiting factor for most of the gastropod species found, this being especially distinct in sinkhole ponds.key woRDs: freshwater malacofauna, Gastropoda, water chemistry, Silesia, Poland http://dx

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Benthic Substrates: Their Effect on Fresh‐Water Mollusca

Cited by 117 publications

References 5 publications

Studies on the behaviour and substratum preference in juveniles of the marine prawn, Metapenaeus monoceros (Fabricius)

Studies on the behaviour and substratum preference in juveniles of the marine prawn, Metapenaeus monoceros (Fabricius)

Geographic distribution of two mussel species and associated assemblages along the northern Argentinean coast

The influence of industrial environment on the distribution of freshwater snails in Uppersilesian Industrial Region

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