Fishery, biology and dynamics of dogtooth tuna, Gymnosarda unicolor (Rüppell, 1838) exploited from Indian seas

Dogtooth tuna, Gymnosarda unicolor (Rüppell, 1838) (Fig. 1) is a pelagic tuna preferring waters of temperature between 21 and 26 oC. It is one of the principal species exploited by hook and line (recreational as well as commercial fishery) operated in the oceanic region. Meat of dogtooth tuna is white and so it has great demand and fetch high price (IUCN, 2011). However, occasional ciguatera fish poisoning in humans has been reported on consumption of dogtooth tuna. It is exported in fresh and frozen state and is used for the production of sashimi, canned tuna, and pouch products. Most of the world landings of dogtooth tuna during 1963 -2006 was from the Indian Ocean. Small scale tuna long lines for the species operating in the Indian Ocean belong to Taiwan, Srilanka, Maldives, Japan or Pakista

Fishery, biology and population characteristics of longtail tuna, Thunnus tonggol (Bleeker, 1851) caught along the Indian coast

The longtail tuna, Thunnus tonggol, Bleeker, 1851 is an economically important species from commercial and recreational point of view. The species inhabit shelf and oceanic waters of tropical and temperate regions of the Indo-Pacific between 47° N and 33° S (Froese and Pauly, 2009) and generally occupy neritic areas of the oceans close to land masses (Yesaki, 1994)

Differentiation of two Chlorophthalmus species Chlorophthalmus corniger (Alcock, 1894) and C. acutifrons (Hiyama, 1940) based on otolith morphometry

489-497A comparative morphometric analysis of otoliths was done to understand the major morphometric characters responsible for differentiating two species of Green-eyes (Chlorophthalmus corniger and C. acutifrons) which is one of the dominant fish groups caught in the deep-sea trawling during the exploratory surveys as well as in the by-catch of trawlers targeting deep-sea shrimps at a depth range of 300 – 500 m in the Indian waters. A total of 53 intact, right otoliths (25 and 28 for C. corniger and C. acutifrons, respectively) were considered for the morphometric analysis to differentiate species collected from Andaman Sea. The study extracted four otolith morphometric measurements and five shape indices measured from the otoliths using image analysing software including otolith weight. The otolith morphometric parameters and shape indices showed significant relationship with the fish size were scaled with standard length to remove the influence of fish size from the data. Principal component analysis using scaled otolith morphometric measurements indicated that the first two axes described 84.78 % and 11.80 % of variation, respectively. The PC1 differentiated the species based on ellipticity and otolith weight followed by area and perimeter. C. acutifrons is differentiated from their congener with a more elliptic, heavy otolith with more otolith surface area. One-way PERMANOVA confirmed significant difference in otolith morphology between the species. Present study confirmed the suitability of otolith morphometric analysis in differentiating Chlorophthalmus species which are quite inevitable for taxonomic studies as well as for the better understanding of the species resolution in diet studies

Differentiation of two Chlorophthalmus species Chlorophthalmus corniger (Alcock, 1894) and C. acutifrons (Hiyama, 1940) based on otolith morphometry

A comparative morphometric analysis of otoliths was done to understand the major morphometric characters responsible for differentiating two species of Green-eyes (Chlorophthalmus corniger and C. acutifrons) which is one of the dominant fish groups caught in the deep-sea trawling during the exploratory surveys as well as in the by-catch of trawlers targeting deep-sea shrimps at a depth range of 300 – 500 m in the Indian waters. A total of 53 intact, right otoliths (25 and 28 for C. corniger and C. acutifrons, respectively) were considered for the morphometric analysis to differentiate species collected from Andaman Sea. The study extracted four otolith morphometric measurements and five shape indices measured from the otoliths using image analysing software including otolith weight. The otolith morphometric parameters and shape indices showed significant relationship with the fish size were scaled with standard length to remove the influence of fish size from the data. Principal component analysis using scaled otolith morphometric measurements indicated that the first two axes described 84.78 % and 11.80 % of variation, respectively. The PC1 differentiated the species based on ellipticity and otolith weight followed by area and perimeter. C. acutifrons is differentiated from their congener with a more elliptic, heavy otolith with more otolith surface area. One-way PERMANOVA confirmed significant difference in otolith morphology between the species. Present study confirmed the suitability of otolith morphometric analysis in differentiating Chlorophthalmus species which are quite inevitable for taxonomic studies as well as for the better understanding of the species resolution in diet studies

Checklist of serranid and epinephelid fishes (Perciformes: Serranidae & Epinephelidae) of India

We provide an updated checklist of fishes of the families Serranidae and Epinephelidae reported or listed from India, along with photographs. A total of 120 fishes in this group are listed as occurring in India based on published literature, of which 25 require further confirmation and validation. We confirm here the presence of at least 95 species in 22 genera occurring in Indian marine waters. The majority of the species belong to the grouper genus Epinephelus (41%), followed by Pseudanthias (15%) and Cephalopholis (13%). Most species (92%) found in India have been assessed globally either as Data Deficient (DD) or Least Concern (LC) on the IUCN Red List of Threatened Species. Since information on groupers from India is limited, there is an urgent need to document the diversity, ecology, life history, population status, and fisheries status of this group of fishes from the country

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Not AvailableLength–weight relationships (LWRs) were estimated for five deep sea fishes viz. Astronesthes martensii, Glyptophidium macropus, Neobythites multistriatus, Physiculus roseus, Synagrops japonicus from Kerala, south west coast of India. Fishes were col-lected from commercial trawlers monthly from February 2018 to March 2019 op-erating at depth ranged from 270 m to 350 m in the south east Arabian Sea. Correlation coef-ficients were found high for all species, with b value ranged from 2.923 to 3.404.Not Availabl

To Evaluate the Efficacy of Mukkadi Bidalaka and Patoladi Kashaya Parisheka in the management of Anjananamika (External Hordeolum) – A Single case study.

Anjananamika is a Raktapradhana Vartmagata Sadhya Netra Vikara caused by the vitiation of Rakta and Mamsa of Vartma due to improper Ahara and Viharas.1 The Lakshanas of Anjannamika appears to be similar to that of Hordeolum externum, acute suppurative inflammation of the eyelash follicles and its associated glands of Zeis or Moll.2 It is a Raktapradhana Vyadhi along with the involvement of other Doshas, Pittahara and Doshahara treatment can be done. All the drugs in Mukkadi Bidalaka and Patoladi Kashaya Parisheka are Chakshushya and have Pitta Shamaka properties. The case selected in this study, patient has been suffering from pain, foreign body sensation, discomfort, congestion, mild watering and photophobia in the upper palpebral conjunctiva of the left eye. Mukkadi Bidalaka and Parisheka was administered twice a day for 5 days, with follow up of one week in Anjananamika. Here a sincere effort is made to evaluate the effect of Mukkadi Bidalaka and Patoladi Kashaya Parisheka. Clinical data collected in 5 days course shows complete relief from the symptoms

First report of longfin escolar, Scombrolabrax heterolepis (Perciformes: Scombrolabracidae) from Indian waters

The taxonomy of deep-sea fishes of India was pioneered by the outstanding works of A.W. Alcock, based on the samples collected during the voyage of the Indian marine survey steamer, HMS ‘Investigator’. Alcock’s publications (1889–1907) are the major detailed work on the deep-sea fauna of Indian waters. Recent studies on deep-sea fishes from the Indian exclusive economic zone has resulted in the description of many new species and new records from Indian waters (Oommen, 1978; Sajeevan et al., 2009; Akhilesh et al., 2010; Bineesh et al., 2010; Kurup et al., 2010; Anderson & Bineesh, 2011)

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Not AvailableThe taxonomy of deep-sea fishes of India was pioneered by the outstanding works of A.W. Alcock, based on the samples collected during the voyage of the Indian marine survey steamer, HMS ‘Investigator’. Alcock’s publications (1889–1907) are the major detailed work on the deep-sea fauna of Indian waters. Recent studies on deep-sea fishes from the Indian exclusive economic zone has resulted in the description of many new species and new records from Indian waters (Oommen, 1978; Sajeevan et al., 2009; Akhilesh et al., 2010; Bineesh et al., 2010; Kurup et al., 2010; Anderson & Bineesh, 2011).Not Availabl

First record of the anthiine fish, Meganthias filiferus (Perciformes: Serranidae) from Indian waters

The present paper reports the first record of occurrence in the Arabian Sea and extension of distribution of Meganthias filiferus from the Thailand coast of the eastern Indian Ocean. A single specimen measuring 211 mm SL was collected from a commercial trawler operating in the Arabian Sea off the south-western coast of India during August 2008. The two known specimens of this rare species are compare