23 research outputs found
Observations on the monsoon prawn fishery in Kerala
The ban on trawling in Kerala from June 15th to
July 30th coincides with the southwest monsoon.
During the period fishermen venture into the sea
with their traditional/motorised crafts and gears
such as thermocol boats (Alapuzha) and
Thanguvallom (Ernakulam and Thrissur). The latter
is operated with outboard engines and operate up
to 8 km from the shore. The thermocol boats fish
very near the shore (up to 3 km). The gear operated
are ring seines or thangu vala and gill nets. The
unique phenomenon in the monsoon season known
as mud-bank or ‘chakara’ is characterised by calm
areas close to the shore
Brief note on the ribbonfish Tentoriceps cristatus from the southwest coast of India
Tentoriceps cristatus (Klunzinger, 1884)
commonly called as crested hair tail is a monotypic
genus of cutlassfish family Trichiuridae. During the
experimental fishery survey conducted by FV Silver
pompano on 28 September 2016, specimens were
obtained in the trawl net operated off Alappuzha
(09º 21'N, 75º 56'E and 09º 21'N, 76º 18' E) at a depth
of 50- 60m along with other fishes and crustaceans
Feeding spectra and activity of the freshwater crab Trichodactylus kensleyi (Decapoda: Brachyura: Trichodactylidae) at La Plata basin
Background: In inland water systems, it is important to characterize the trophic links in order to identify the ‘trophic species’ and, from the studies of functional diversity, understand the dynamics of matter and energy in these environments. The aim of this study is to analyze the natural diet of Trichodactylus kensleyi of subtropical rainforest streams and corroborate the temporal variation in the trophic activity during day hours.
Results: A total of 15 major taxonomic groups were recognized in gut contents. The index of relative importance identified the following main prey items in decreasing order of importance: vegetal remains, oligochaetes, chironomid larvae, and algae. A significant difference was found in the amount of full stomachs during day hours showing a less trophic activity at midday and afternoon. The index of relative importance values evidenced the consumption of different prey according to day moments. Results of the gut content indicate that T. kensleyi is an omnivorous crab like other trichodactylid species. Opportunistic behavior is revealed by the ingestion of organisms abundant in streams such as oligochaetes and chironomid larvae. The consumption of allochthonous plant debris shows the importance of this crab as shredder in subtropical streams. However, the effective assimilation of plant matter is yet unknown in trichodactylid crabs.
Conclusions: This research provides knowledge that complements previous studies about trophic relationships of trichodactylid crabs and supported the importance of T. kensleyi in the transference of energy and matter from benthic community and riparian sources to superior trophic levels using both macro- and microfauna.Fil: Williner, Verónica. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina. Universidad Nacional del Litoral. Facultad de Humanidades y Ciencias; ArgentinaFil: de Azevedo Carvalho, Debora. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; ArgentinaFil: Collins, Pablo Agustin. Consejo Nacional de Investigaciones Científicas y Técnicas. Centro Científico Tecnológico Conicet - Santa Fe. Instituto Nacional de Limnología. Universidad Nacional del Litoral. Instituto Nacional de Limnología; Argentina. Universidad Nacional del Litoral. Facultad de Bioquímica y Ciencias Biológicas; Argentin
Proceedings and Recommendations of the Training on Tropical Finfish and Shellfish Stock Assessment cum Brainstorming Session on Indian Marine Capture Fisheries Research and the Way Forward
A training on Tropical Finfish Stock Assessment was
conducted by the Finfish Fisheries Division (FFD), ICARCMFRI, for Fisheries Resource Management scientists at
ICAR-CMFRI Headquarters, Kochi during 16-27 August
2022, in hybrid mode. The program was inaugurated
by Dr. A. Gopalakrishnan, Director, ICAR-CMFRI on 16th
August 2022, and was attended by Dr. Sanjay Pandey,
Asst. Commissioner (Fisheries), Govt. of India, Heads of
Divisions at ICAR-CMFRI Headquarters and scientists of
Finfish and Shellfish Fisheries Divisions of ICAR-CMFRI.
In the second phase, a training - workshop on 'Stock
assessment of shellfish species' was organised from 9
-17 November 2022 by the Shellfish Fisheries Division
(SFD), with focus on specific methods for shellfish
species. Scientists from the Fishery Resources Assessment,
Economics and Extension Division (FRAEED), FFD and SFD
were participants and resource persons in the respective
programme
Prawn fauna (Crustacea: Decapoda) of India - An annotated checklist of the Penaeoid, Sergestoid, Stenopodid and Caridean prawns
Twenty four species of Pandalid shrimps reported from the
Indian waters, of which six genera (Chlorotocella, Chlorotocus,
Chlorocurtis, Dorodotes, Heterocarpoides and Stylopandalus)
are represented by single species each. The genera, Plesionika
and Heterocarpus are represented by eleven and seven species
respectively. Plesionika adensameri (Balss, 1914) a deep-sea
shrimp hitherto unreported from Indian waters is recorded from
west coast of India. Information on some biological aspects of
few Pandalid shrimps from Indian waters is also reported in the
present paper
Status of marine fisheries of Kerala
Kerala with a coastline of 590 km is a significant
contributor to the total marine fish landings of the
country. A picture of the marine fisheries sector in
Kerala during the years 2005 and 2010 is presented
below (Table 1). With a continental shelf of about
40,000 km2 marine fisheries plays a vital role in
the livelihood of the people
Not Available
Not AvailableTentoriceps cristatus (Klunzinger, 1884)
commonly called as crested hair tail is a monotypic
genus of cutlassfish family Trichiuridae. During the
experimental fishery survey conducted by FV Silver
pompano on 28 September 2016, specimens were
obtained in the trawl net operated off Alappuzha
(09º 21'N, 75º 56'E and 09º 21'N, 76º 18' E) at a depth
of 50- 60m along with other fishes and crustaceans.Not Availabl
Not Available
Not AvailableTentoriceps cristatus (Klunzinger, 1884)
commonly called as crested hair tail is a monotypic
genus of cutlassfish family Trichiuridae. During the
experimental fishery survey conducted by FV Silver
pompano on 28 September 2016, specimens were
obtained in the trawl net operated off Alappuzha
(09º 21'N, 75º 56'E and 09º 21'N, 76º 18' E) at a depth
of 50- 60m along with other fishes and crustaceans.Not Availabl