202 research outputs found
Preliminary experiments on the culture of the banded coral shrimp Stenopus hispidus Oliver- Winter School on Recent Advances in Breeding and Larviculture of Marine Finfish and Shellfish
The banded coral shrimp, Stenopus hispidus Oliver, is the largest of the known тАЬcleanerтАЭ shrimps which remove
and eat parasites, injured tissue, and undesirable food particles from a large variety of reef fishes and helps to control
gill, oral, and external parasites reef fishes as does by cleaner wrasses (Limbaugh et al., 1961). S. hispidus occurs
throughout the Indo-Pacific region (Holthius, 1946). It is usually found in pairs in a variety of reef habitats, including
under coral ledges and in natural depressions in rock formations, where reef fishes come to be cleaned. In addition to
its useful ecological role, the banded coral shrimp is also a beautiful and hardy specimen, which makes it very popular
in the aquarium industry. Because of this popularity, a number of attempts have been carried out to breed it on a
commercial scale, but none has succeeded due to high larval mortality and failure of the larvae to settle and
metamorphose (Young, 1979). The purpose of this work was to study the reproductive cycle of S. hispidus, including
maturation, mating, spawning, and hatching rate, to develop techniques for rearing larvae and inducing settlement
and metamorphosis of larvae
Marine aquaria
There are many uses of maintaining marine aquaria. Considering the world trade of US$ 4.5 billion, there is
tremendous potential for exporting marine ornamental fi shes from India. The sequences for setting up a marine
aquarium such as designing and preparation of tank, biological filtration system, aeration, decoration of tanks,
sterilization, lighting, maintaining water quality and feeding the fishes etc are discussed
Artificial reefs
Artificial reefs are natural or manmade external objects or stable structures placed in the sea to provide an artificial fish habitat and thereby to attract, aggregate and regenerate fishery resources. Artificial reefs are used worldwide to increase the productivity and fisheries potential of relatively barren or unproductive areas. Artificial reefs are also used as effective fish attracting devices during certain times of the year. Reefs when properly located and structured not only concentrate fishes but also increase the biological productivity of the area. Reefs also often serve as spawning and nursery areas for fishes and shellfishe
Fishery resources of Veraval
Marine production at Veraval has undergone
tremendous changes. Fish production increased
from 33,827 tonnes in 1983 to 47,867
tonnes in 1988 and further to 1,15, 703 tonnes
in 1991. The increase in the production from
1989 was tremendous and unproportionate to the
increase in the effort. This increase in the catch,
although was very evident in the case of trawl
landings, was also remarkable in the gill net
catche
Artificial reefs habitat enhancement and increasing fisheries potential
Artificial reefs are used throughout the
world to increase the fisheries poter\tial of barren
or relatively unproductive areas. Artificial reefs
also act as effective fish attracting devices during
certain times of the year. Reefs when properly
located and structured not only concentrate fishes,
but also increase the biological productivity of the
area. Formation of rough rigid bottom habitat
with artificial reefs of diverse materials increases
the surface area necessary for fish food organisms.
The reefs also often serve as spawning habitat and
shelter for fishes and shellfishes
Transportation of fingerlings and juveniles of marine finfish
There are two basic transport systems for live fish - the closed
system and the open system. The closed system is a sealed
container in which all the requirements for survival are selfcontained.
The simplest of these is a sealed plastic bag partly
filled with water and oxygen. The open system consists of waterfilled
containers in which the requirements for survival are
supplied continuously from outside sources. The simplest of these
is a small tank with an aerator stone
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Prospects and constraints of sea cage farming in Go
Fish growth parameters and their monitoring
Recent studies
have predicted that fish consumption in developing and
developed countries will increase by 57 percent and 4 percent,
respectively. Rapid population growth, increasing affluence and
urbanization in developing countries are leading to major changes
in supply and demand for animal protein, from both livestock
and fish. The need for suitable sites has resulted in the cage
aquaculture subsector accessing and expanding into new
untapped open-water culture areas such as lakes, reservoirs, rivers
and coastal brackish and marine offshore water
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Common diseases in marine algae culture in Indi
Lobster culture along the Bhavanagar coast
Gujarat has made tremendous strides in
the marine production during the past two
decades. From a humble production of 82,159
tonnes in 1971 (7.1% of all India marine production),
the production increased to 2.34 lakh
tonnes in 1981 (17% of all India marine
production) and further to 4.92 lakh tonnes in
1990 (20.1% of all India marine production,
(Vivekanandan et ah, in press). This six times
increase in the fishery was exclusively from the
capture fishery sector. This tremendous growth
in the marine fishery, coincided with a remarkable
growth in the proccessing and export industry
of the region. A substantial portion of the marine
catch is contributed by the Saurashtra coast. The
introduction of the commerical trawlers in 1967,
mainly to capture shrimps for export market and
subsequent large scale expansion of the trawlers
were mainly responsible for the blue revolution
along the Saurashtra coast (Philipose 1992)
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