Postmarsupial Development and Population Dynamics of Leptochelia Sa Vignyi (KrØYer, 1842) (Tanaidacea)

Masunari, Setuko

doi:10.1163/156854083x00776

Cited by 30 publications

(33 citation statements)

References 2 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Egg number was linearly related to female size in both populations and was similar to those reported in other tanaidacean species by Larsen (2005) but was higher than the values registered by other authors (Masunari and Sieg 1980;Masunari 1983;Messing 1983;Schmidt et al 2002). However, the mean number of eggs per female and the slopes of fecundity regressions from MdP were lower than those from LE.…”

Section: Discussionsupporting

confidence: 88%

“…A close relationship between density and temperature, characterized by the lowest values in warmer months and the highest in colder months, was observed in LE, but not in MdP with a lower but constant density through the year. The pattern observed in LE has been reported in other tanaidaceans (Mendoza 1982;Masunari 1983;Kneib 1992). Temperature plays a major role in intertidal environments: during the warm season, higher temperatures increase mortality rates of benthic species by desiccation, while in cold season lower temperatures reduce the desiccation and consequently mortality (Kneib 1984;Bertness 1999).…”

Section: Discussionsupporting

confidence: 84%

“…tubes or burrows), and lay her eggs in a ventral marsupium after copulation (Johnson and Attramadal 1982a;Mendoza 1982;Schram 1986). Once fertilization occurs, offspring pass through an abbreviated larval development (manca I and II) (Masunari 1983;Messing 1983;Hamers and Franke 2000). When mancae are released, they begin to develop independently near to the mother (Johnson and Attramadal 1982a).…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Comparison of life history traits of Tanais dulongii (Tanaidacea: Tanaididae) in natural and artificial marine environments of the south-western Atlantic

2015

View full text Add to dashboard Cite

Tanaidaceans are small benthic crustaceans with a strictly benthic life cycle and low dispersion rates, so they are good candidates to evaluate the effects of environment over life history strategies and reproductive biology. In this work, we studied two populations of Tanais dulongii (Audouin, 1826) that live in two contrasting habitats in order to determine whether they differ in life history traits. The animals were obtained by systematic sampling in a rocky shore with a lower anthropic impact (La Estafeta: LE) and a polluted area (Mar del Plata harbour: MdP) from March 2011 to March 2012. Seawater temperature and salinity did not differ between sites, but MdP showed more acid and hypoxic conditions than LE. Population density was homogeneous and lower in MdP (ca. 20 ind/100 gr) than that in LE where density varied between 250 and 800 ind/100 gr. Reproductive individuals and juveniles were always present, and both populations showed two main recruitment periods: the first in spring in both populations, and the second in summer in MdP but in autumn-winter in LE. In both populations, sex ratio was strongly female-biased. Juveniles, females and males from LE had larger sizes than that from MdP and reached their sexual differentiation at larger sizes. The estimated lifespan was about 9 and 12 months in MdP and LE, respectively. This study suggests that the differences observed between populations of T. dulongii in life history traits are intimately related to environmental differences in pH and dissolved oxygen between habitats, but should not be discarded a synergistic effect of temperature, organic pollution, food availability and predation pressure.

show abstract

Section: Discussionsupporting

confidence: 88%

Section: Discussionsupporting

confidence: 84%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Comparison of life history traits of Tanais dulongii (Tanaidacea: Tanaididae) in natural and artificial marine environments of the south-western Atlantic

2015

View full text Add to dashboard Cite

show abstract

“…data). It is well known that in many tanaids like Leptochelia (Masunari 1983), Heterotanais (Bückle-Ramirez 1965), and Zeuxoides (Bird 2008), the uropodal article number increases with size. A specimen having different article numbers in the left and right uropod could thus reflect an incomplete ecdysis.…”

Section: Primary Male (Figs 4 5)mentioning

confidence: 99%

In the footsteps of Henrik Nikolaj Krøyer: the rediscovery and redescription of Leptochelia savignyi (Krøyer, 1842) sensu stricto (Crustacea: Tanaidacea: Leptocheliidae)

Bamber¹

2010

Proceedings of the Biological Society of Washington

View full text Add to dashboard Cite

“…Fecundity was defined as number of embryos or mancae per copulatory female (excluding those with damaged marsupia because part of the offspring were potentially lost), and calculated from the sum of all eggs in the marsupium of each female and then the division by the number of copulatory females [5,6]. Females with only one marsupium were included for consistency.…”

Section: Methodsmentioning

confidence: 99%

Description, systematics and ecology of a new tanaidacean (Crustacea, Peracarida) species from mediterranean fish farms

Esquete

Fernandez-González

2016

Helgol Mar Res

View full text Add to dashboard Cite

An undescribed species of tanaidacean belonging to the genus Hexapleomera, tribe Pancolini, Hexapleomera bultidactyla sp. nov. was found in fouling community samples from off-coast fish farms cages in the western Mediterranean Sea. The species can be distinguished from other Hexapleomera species by the presence of a ventral apophysis on the dactylus of the chela in males. Other diagnostic characters (in combination) include a male antennule with five aesthetascs, the female with three, the maxillule palp with four terminal setae and maxilliped basis and coxa each with two setae; the male fixed finger with four ventral setae and proximal apophysis, the female chela fixed finger with a proximal triangular apophysis, an apophysis on the coxa of pereopod 1, a pleopod 3 basis with three outer setae, and an uropod of four segments. Although several substrata were investigated, the species was most abundant where the turf formed by Ceramiaceae algae and the hydroid Aglaophenia sp. was dominant. An updated identification key to all the species of Hexapleomera is provided.

show abstract

Postmarsupial Development and Population Dynamics of Leptochelia Sa Vignyi (KrØYer, 1842) (Tanaidacea)

Cited by 30 publications

References 2 publications

Comparison of life history traits of Tanais dulongii (Tanaidacea: Tanaididae) in natural and artificial marine environments of the south-western Atlantic

Comparison of life history traits of Tanais dulongii (Tanaidacea: Tanaididae) in natural and artificial marine environments of the south-western Atlantic

In the footsteps of Henrik Nikolaj Krøyer: the rediscovery and redescription of Leptochelia savignyi (Krøyer, 1842) sensu stricto (Crustacea: Tanaidacea: Leptocheliidae)

Description, systematics and ecology of a new tanaidacean (Crustacea, Peracarida) species from mediterranean fish farms

Contact Info

Product

Resources

About