Factors affecting the distribution of benthic and littoral rotifers in a large marine lagoon, together with the description of a new species

Abstract

The Fleet, Dorset, UK is a large macro tidal marine lagoon which carries a significant population of rotifers living in the algae present along its length . Some of the physical and chemical characteristics of the lagoon were examined and related to rotifer total abundance and species richness . A preliminary list of species found at different sampling stations is given . A strong negative correlation between salinity and total abundance was found . A similar negative correlation between species richness and salinity was also found . A description of Proales fleetensis sp . nov. i s given .

Rotifers in saltwater environments, re-evaluation of an inconspicuous taxon

“…Turner, 1990Turner, , 1993, periphyton of tidal pools (e.g. Saunders-Davies, 1995 and deep sediments (Sommer et al, 2003), to plankton (e.g. Arndt et al, 1990;Viitasalo, 1994;.…”

“…Armitage & House (1962), De , Hauer (1925), Remane (1929), Schwarz ( /1956), Schwarz (1962), Sick (1933) Collotheca ornata f. natans 66 Remane (1929), Rudescu (1961), Schwarz ( /1956), Schwarz (1962) Colurella adriatica Ehrenberg, 1831 Althaus (1957a), Althaus (1957b), d'Hondt (1970, De Manuel et al (1992), , De Ridder (1957a), , , , , De Ridder (1967), , De Ridder (1983), ), Fore¤ s et al (1986, Gessner (1957), Godske Bjo« rklund (1972b), Godske Eriksen (1968), Hauer (1925), Hauer (1957), No¤ gra¤ di (1957), Pasquali (1940), , , Pretus et al (1992), Remane (1929), Rentz (1940), Rudescu (1961), Saunders-Davies (1995), Schwarz ( /1956), Schwarz (1962), Sick (1933), Turner (1993),…”

“…Thane-Fenchel, 1966 B e erzi , n s s (1952( ), d'Hondt (1970, Dartnall (1997), De Manuel et al (1992), , De Smet (1995), De Smet (1996b), De Smet (2002), Friedrich & De Smet (2000), Funch & SÖrensen (2001), Godske Bjo« rklund (1972b), Godske Eriksen (1968), Hamelin (1956), Hollowday (1949), Jansson (1967, Pasquali (1940), Pretus et al (1992), Rudescu (1961), Saunders-Davies (1995), Saunders-Davies (1998), Schwarz ( /1956), Schwarz (1962), Sick (1933), SÖrensen & Kristensen (1998 , Donner (1965), Fenchel & Jansson (1966), Hauer (1925), Remane (1929), Schwarz ( /1956), Schwarz (1962) Rotaria laticeps (1957a), , , Hauer (1925), Mu« nch & Petzold (1955),…”

4. Rotifera

“…The rotifer community in tide pools is apparently also negatively influenced by sediment loading and determined by the type of algal vegetation, with some rotifers showing a significant preference for brown or green algae (Saunders-Davies 1995. Some 100 species have been reported from the algal vegetation of the sublittoral fringe, and the intertidal including its tide puddles and rock pools.…”

Marine Rotifera from the Crozet and Kerguelen Islands (Subantarctica), with the Description of a New Encentrum(Monogononta: Dicranophoridae)

“…The discovery of a new species, Encentrum frenoti, was not surprising as marine habitats and especially periphyton and Aufwuchs are amply studied, the studies moreover being mostly confined to occasional samplings (e.g. JANSSON, 1967;THANE-FENCHEL, 1968;DE SMET, 1995, 1996b, 2000SAUNDERS-DAVIES, 1995. The lack of study of these habitats is also demonstrated by the fact that some of the more common species of the Holarctic region (Encentrum algente, E. marinum, Proales halophila) are new records for the southern hemisphere.…”