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2 documents found tagged eunapius carteri [X]
  • Title
    A report of hailstorm damage to two species of freshwater sponge (Demospongiae: Haplosclerida: Spongillidae) populations of West Bengal, India
    Type
    Journal Article
    Description
    Selected freshwater bodies in Jagaddal of North 24 Parganas in West Bengal, India are inhabited by two species of sponge, Eunapius carteri (Bowerbank, 1863) and Spongilla alba (Carter, 1849) (Porifera: Demospongiae: Spongillidae). Most of these wetlands are perennial ponds without a history of aquaculture and toxin contamination. On 22 March 2014, the entire area of Jagaddal experienced an unprecedented hailstorm associated with a sharp decline of environmental temperature from 35 0C to 21 0C within 10–15 minutes. The hailstorm associated with torrential rain lasted for about 30 minutes. The natural habitat of the sponge was visited after six hours of the hailstorm in open day light conditions. During the field investigation, we recorded large-scale damage to the populations of E. carteri and S. alba. Macroscopic observation revealed that the fragmentation of body masses were also associated with cellular disintegration of the external surface. Sponge cells were experimentally dissociated from the sponge fragments and subjected to dye exclusion assay. A vital dye (trypan blue) exclusion assay of sponge fragments confirmed a high degree of mortality of the cells of E. carteri and S. alba. Hailstorm associated with the decline of environmental temperature down to 21 0C resulted in the mass destruction of these two species of sponges in their natural habitat. Any unprecedented and acute change in the climatic and hydrological parameter may lead to physiological adversity in the freshwater sponge. Subsequently, recovery from cold shock and mechanical stresses was overcome and a regeneration of sponge specimens was recorded within a period of around six months from the date of the hailstorm. 
    Attribution
    Mukherjee Soumalya, Ray Mitali, Ray Sajal; Journal of Threatened Taxa Vol 8, No 4 (2016) 26/4/2016; pp. 8719-8727; 10.11609/jott.1739.8.4.8719-8727
  • Title
    A note on five freshwater sponges (Porifera: Spongillina: Spongillidae) from Pune, Maharashtra, India
    Type
    Journal Article
    Description
    We report the presence of five freshwater sponges in ephemeral and permanent fresh water bodies in and around Pune, Maharashtra, India. Field observations, descriptive notes, habitus photographs and SEM photographs of body spicules, gemmule spicules and gemmules of five species are provided. Eunapius carteri (Bowerbank, 1863), Radiospongilla cerebellata (Bowerbank, 1863) and Corvospongilla lapidosa (Annandale, 1908) are commonly occurring species, whereas Ephydatia meyeni (Carter, 1849) and Dosilia plumosa (Carter, 1849) are rarely found. This report fills a longstanding gap in observations of freshwater sponges near Pune, and it is heartening to note that species reported earlier are still found in these environs.
    Attribution
    Jakhalekar S.S., Ghate H.V. (2013). Journal of Threatened Taxa 9(5) pp. 4392-4403; doi:10.11609/JoTT.o3356.4392-403