Unusual landings of Crimson jobfish and Yellowfin tuna along Odisha coast

The crimson jobfish Pristipomoides filamentosus belongs to the family Lutjanidae (Snappers) is highly valued due to its white quality meat. Usually only a few numbers, mostly of small size are landed along with other fishes in trawl and longline catches. Recently, on 5 November 2019 about one tonne of mostly large sized crimson jobfish caught by single day operation longliner unit landed at Chandravaga Landing Centr

Successful management of beach litter at Puri sea beach, Odisha, India

Puri is the greatest iconic sacred pilgrimage destination in India and one of the four abodes of divines and blessed with a scenic Sea beach on Bay of Bengal. Puri beach is also known for its tourist attraction and Hindu sacred place. Every year around onecrore tourists visit the state because of its magnificent beaches, the twelth century Lord Jagannath Temple, nearby black pagoda (The Konark Sun Temple), a UNESCO World Heritage site and the Chilka lake

Field Identification of Tunas from Indian Waters

The Family Scombridae is one of the largest and most economically important fish family which comprises of most advanced scombroid fishes such as mackerels, tunas and bonitos with 54 valid species in 15 genera (Collette et al., 2001). Among them, tunas are one of the important food fishes exploited all over the world. Altogether 9 species in 6 genera are contributing to the Indian tuna fisheries. Indian tunas are classified into two categories such as (i) Coastal tuna and (ii) Oceanic tuna. Euthynnus affinis, Auxis thazard, A. rochei, and Sarda orientalis are considered as coastal tuna where as Thunnus albacares, T. obesus, T. tonggol, Katsuwonus pelamis, and Gymnosarda unicolor are mostly oceanic in nature

Length Measurement of Finfish and Shellfish: Its Uses in Fisheries Biology

The conservation and management process in fisheries depends on the type of stock and its assessment. Hence, it is important to understand the input parameters for the models used in the stock assessment. The length-frequency is one of the sensitive parameter which is used most frequently to know the dynamics of fish stocks in tropical waters. The correct data collection on the length measurement plays a vital rolein estimating the population parameters and to study the stock characteristics, biology, and taxonomy of fishes. The length measurements such as total length (for most fish species), fork length (tunas), standard length (used mostly in taxonomy/systematics), body length (needlefishes), lower jaw fork length (billfishes), pre-anal length (ribbonfishes), and disc width (rays) are considered as the standard measurement for fin fishes, whereas carapace length (prawns, lobsters and crayfishes), carapace width (crabs), mantle length (cephalopods), shell length, shell width, shell depth (bivalves),and shell height (gastropods)are used for the shell fishes. This chapter will providea detail insights on thedifferent standard length measurements and techniques used for the measurement of fish length

ଜେଲି ତଥ୍ୟ (Jelly facts-Odiya Version)

Jelly fact

Indiscriminate exploitation of juvenile black pomfret by ring seines along Kerala coast

Black pomfret, Parastromateus niger is an highly esteemed food fish with a very good demand in local and export markets. Unusual heavy landings of juvenile black pomfret was observed at the Kalamukku Landing Centre on 22nd and 23rd August 2016. On 22nd August, a big shoal of about 2 tonnes (t) of juvenile black pomfret was caught by one mechanised inboard (280 HP engine) ring seine unit. Similarly, on 23rd August about 1.25 t of juvenile black pomfret was landed by two mechanised inboard ring seine units with 440 HP engine power

भारतीय जलक्षेत्र से ट्यूना की क्षेत्रीय पहचान

भारतीय जलक्षेत्र से ट्यूना की क्षेत्रीय पहचा

Record sized Alepes vari and Nematalosa nasus

The herring scad, Alepes vari is a common pelagic fish species in the family carangidae. The species is the largest fish of the scad genus Alepes and maximum length so far recorded all over the world oceans is 560 mm TL (Froese & Pauly, FishBase 2016, http://www.fishbase.org.). During a regular field visit, an unusually large specimen of A. vari was recorded from Kalamukku Landing Centre, Kerala on 25th May, 2016. This was a male individual measuring 600 mm in total length (TL) and weighing 1.6 kg (Fig. 1)and was caught by hook and line. Young ones occasionally occur in pelagic trawls and larger ones rarely occur in gill net and hook and line catches

Field identification of yellowfin and bigeye tuna

Tunas are commercially important food fishes exploited from all the world oceans. Of the 9 species contributing to the Indian tuna fisheries, yellowfin and bigeye tuna grow to big sizes, and with superior meat quality have high export demand. Identification of these tuna species are comparatively easier in fresh condition than the iced or frozen condition due to discolouration, fin and skin damage during handling and storage process. In such cases certain internal characteristics such as length of air bladder, liver shape and striation are used. Misidentification of yellowfin and bigeye tunas occurs in several cases. The present study is based on field observations at Cochin Fisheries Harbour and uses an easy field identification key for yellowfin and bigeye tuna based on external characteristics developed by Itano (2005) and IOTC (2013). Bigeye tuna are landed stray numbers along with yellowfin tunas, at Cochin Fisheries Harbour

तमिलनाडु की ट्यून मात्स्यिकी: भूत, वर्तमान एवं भविष्य

तमिलनाडु की ट्यून मात्स्यिकी: भूत, वर्तमान एवं भविष्