Sunesh, Thampy; Dr.Ramachandran,A(Cochin University of Science And Technology, July , 2009)
[+]
[-]
Abstract:
Garra surendranathanii is a hill stream cyprinid endemic to Kerala.
According to IUCN based classification, G. surendranathanii is grouped under
the threatened category. This endemic fish is having highly restricted and
fragmented distribution and reported only from 5 river systems viz. Chalakudy,
Periyar, Pamba, Achenkoil and Bharathapuzha. Categorization of this fish as a
potential ornamental candidate can invariably add more pressure on the threat
status of this particular species. Hence, this species is considered as one which
requires foremost attention for conservation. Hitherto, no infomiation is
available on the bionomics, resource characteristics and any conservation
attempts of G. surendranathanii. Studies on detailed life history traits and
development of captive breeding technique are indispensable for successful
fishery management.The present study was undertaken with the following obj ectives:
To study the Length-weight relationship and condition factor to
ascertain the relationship between length and weight and general
wellbeing ofthe fish To study the age and growth to understand the age composition of the
exploited stock, age at first maturation and life span of the species. To study the reproductive biology of G. surendranathanii to gain insights in the process of gametogenesis, spawning, sex ratio, fecundity and other related aspects which are essential for developing captive
breeding technology of this species. To develop captive breeding technology and cryopreservation ofgametes of G. surendranathanii for conservation
Description:
School of marine sciences, department of industrial fisheries, Cochin University of Science And Technology
Joselet Mathew; Dr.Kulasekarapandian, S(Cochin University Of Science And Technology, November 6, 1990)
[+]
[-]
Abstract:
This thesis deals with the population characteristics of Artemia
and the effect of different environmental parameters on the different
stages of Artemia in a salina at Tuticorin, south east coast of India.
The present investigation was carried out from 1985 to I987.
The study was initiated by undertaking a survey to find out suitable
Artemia habitats along the south east coast of India and a perennial
salina with an area of 0.25 ha was selected at Karapad (Tuticorin). Weekly
samplings were made for two full calender years (1986-87) to collect
the different stages of Artemia population as well as the different
environmental parameters. The thesis comprises of the following sections: Introduction, materials and methods, systematics, biology and distribution of Artemia, results and discussion, summary and bibliography. The section on results
and discussion gives the characteristics of Artemia population in the
salina, the seasonal variations of different environmental parameters
in the salina and their effects on different stages of Artemia population.
Description of an experiment conducted to show the sudden changes of
salinity on different stages of Artemia is also given as a separate
section.
Description:
Centre Of Advanced Studies In Mariculture,Cochin University Of Science And Technology