Abdul Azeez P.

Central Marine Fisheries Research Institute | CMFRI · Finfish Fisheries Division

The Indian scad, Decapterus russelli is one of the most exploited pelagic resources of India. Population genetic analyses using mitochondrial and nuclear markers indicated a lack of genetic structuring among populations from Indian waters. As this species is highly migratory, it is also important to establish the environmental influence on its popu...

The fishery and stock dynamics of Trichiurus lepturus (Linnaeus, 1758) were studied in the Indian Exclusive Economic Zone (EEZ) for the period 2014-2019. The average annual landing was 2,09,285 t and varied from 1,77,259 to 2,39,355 t. Trawl nets were the majorgear, contributing more than 85% with an average annual catch rate of 4.56 kg h-1. The an...

Temperature is one of the crucial environmental factors affecting the physiology and suitability of fish species for aquaculture, making it vital to predict how the present rate of climate change will impact these species. To assess the heat tolerance of silver pompano Trachinotus blochii, the Critical Thermal Maxima (CT max) and Critical Thermal M...

Ribbonfish Trichiurus lepturus is one of the most important pelagic fish resources in India. The west coast of India (WCI) is considered to be the major region where the species is abundant and forms a sizeable fishery. Determining the spatio-temporal abundance of fish is a key requirement for sustainable resource harvest. This paper illustrates th...

Regional fisheries for cobia (Rachycentron canadum) along the Indian coast was assessed using length-based stock status indicators. Drift gill nets-cum-hook and line fisheries landed bigger sized cobia as bycatch while multi-day mid-water trawls landed juveniles. Dominant size groups in the landings along the west coast were 40-160 cm and 60-120 cm...

The frigate tuna, Auxis thazard forms a coastal fishery in India throughout the year. During the period 2015-2020, with an annual average catch of 6,387 t, the resource formed 7.14% of the total tuna catch of the country. Andhra Pradesh (1,131 t) recorded the maximum landings followed by Karnataka (968 t) and Tamil Nadu (701 t). In West Bengal and...

The annual pelagic fish landings of the country comprising diverse species, increased from 0.3 million t in 1950 to >3 million t in 2021, marking a tenfold increase. The pelagic resources consistently constituted over half of the total marine fish landings. Major contributors to the pelagic landings are sardines, mackerels, tunas, carangids, ribbon...

This work delves into the mahi-mahi (dolphinfish) fishery along the Indian coast, noting its developmental stage precluding a full assessment. The analysis of population characteristics highlights their inherent resilience, driven by early maturity, substantial fecundity and rapid growth rates. These traits collectively mitigate susceptibility to f...

Commercial trawl fisheries are closely associated with bycatch and discards and it significantly affects the non-target resources, biodiversity, ecosystem function and habitat. The present study analysed bycatch based on data obtained from commercially operated multiday midwater trawlers operating off the northwest coast of India during August 2017...

The Bombayduck Harpadon nehereus (Hamilton, 1822) is a common species and major contributor to the fishery in the northern Arabian Sea. The biology of H. nehereus, exploited by set bagnets (SBN, dol netters) and trawlers from the northern Arabian Sea coast of India (Gujarat and Maharashtra) was investigated during 2014 to 2019. Fishes with a size r...

India is one of the major fishing nations in the Indian Ocean, with commercial marine fishlandings in the country comprising of nearly 1000 species. A comprehensive and periodicassessment of the stocks is crucial for achieving the goals of sustainable fisheries harvestand management. The ICAR-Central Marine Fisheries Research Institute, Ministry of...

Sea cage farming in marine open waters is considered as the most viable technique in Indianmariculture to enhance production. Owing to the support of the government in researchand development, and policy initiatives, marine cage farming is progressing steadily in thecountry. Technological guidance from research institutions and financing under the...

The Indian Scad, Decapterus russelli is an important pelagic carangid widely distributed throughout the Indian Ocean and the Indo-West Pacific. Despite being widely distributed in the Indian Ocean, the information regarding genetic structuring and diversity has been lacking compared to its Indo Malay Archipelago counterparts. The present study was...

Sailfishes, marlins, spearfishes and swordfishes commonly referred to as billfishes are highly migratory species, with a worldwide distribution in tropical and subtropical oceans. The landings of billfishes along the Indian coast registered an increasing trend with an estimated landing of 14,759 t in 2019. Kerala (41%) contributed the maximum follo...

Auxis rochei is one of the coastal tunnies contributing substantially to the tuna landings in India, with an average (2014-2019) annual catch of 7210 t. Kerala stood first, with an annual average landing of 3176 t. The fishery comprised 14.5 - 39.6 cm fork length (FL) size groups with a mean length of 27.64 cm and a major mode of 26 cm FL. The Leng...

Scomberomorus guttatus has been subjected to a series of synonym assignations over the years. Its taxonomy has been mired with ambiguities due to the greater‐than‐average morphological variations observed in samples from different regions. An integrated taxonomic revision with molecular support indicated that the species that was thought to be a si...

Manas, H.M.; Ghosh, S.; Rohit, P.; Rajesh, K.M.; Abdussamad, E.M.; Satishkumar, M.; Pokkathappada, A.A.; Rathinam, M.M., and Divipala, I., 2023. Feeding aspects of dolphinfish, Coryphaena hippurus (Linnaeus, 1758), exploited from Indian waters. Journal of Coastal Research, 39(4), 675–684. Charlotte (North Carolina), ISSN 0749-0208. The common dolph...

Fish frequently shift their distribution ranges as a result of changes in preferred environmental factors. Knowledge on distribution of fish in relation to their environmental optima is crucial for improving the understanding of fishing grounds and planning sustainable exploitation. This study investigated the monthly variability in environmental f...

Spatial conservation planning to reduce the impact of fishing on ecosystems necessitates understanding of the spatial distribution of bycatch in fishing grounds. Management measures in Indian waters cannot be spatially explicit without this information. Thus, a preliminary study was conducted on the northwest coast of India to identify the most per...

Information on diet composition and feeding habits of species is very much essential for the scientific planning to develop sustainable management plans. The feeding biology of Trichiurus lepturus was studied during 2014 to 2018 from 6167 and 3346 specimens collected on a weekly basis along Eastern Arabian Sea (EAS) and Western Bay of Bengal (WBB),...

The genus Scomberomorus, with 18 nominal species, sustains a significant heterogeneous fishery throughout its range. The sole molecular systematic study of this genus concerned the species group S. regalis, which contains the new world taxa. The species diversity of Scomberomorus in the northern Indian Ocean has not been studied at the molecular le...

The mid-water multiday trawl fishery along the northwest coast of India generally targets adult largehead hairtail, Trichiurus lepturus. Bycatch landed by the commercial mid-water multiday trawlers operated from Veraval harbor during August 2017-December 2019 was investigated by analyzing catch composition with respect to its spatial and temporal p...

The mid-water trawl fishery along the northwest coast of India generally targets adult largehead hairtail, Trichiurus lepturus. Bulk of largehead hairtails landed in the region caught by multiday trawlers. Bycatch landed by the commercial multiday vessels operated from Veraval harbour during August 2017-December 2019 was investigated by analysing c...

The present study on the biology of Sardinella longiceps was carried out at the Veraval coast of Gujarat. The observed length of species was in the range of 145 to 236 mm and weighing from 37.54 to 122.35 gm. The highest mean length of 206 ± 9 mm was observed in the month of December. Females showed overall dominance with the average sex ratio of 1...

Diet composition of nine commercially exploited fishery resources which contributes 55–60% of the total fish landings in the northwest coast of India were analyzed in this study. Gut content analysis of the selected fish groups has shown significant variations in the prey composition and predator preference on a prey item. The diet matrix revealed...

Ribbonfish (Trichiurus lepturus) is one of the major fishery resources of the north-eastern Arabian Sea having significance from commercial as well as ecological point of view. Information on habitat of the resource and its spatio-temporal variations is sparsely limiting precise prediction of the grounds for efficient harvest and management of the...

Mariculture in open seas particularly, sea cage farming is rapidly expanding all along the territorial waters of the Indian sub-continent. Intensification of such new activities in open waters may lead to issues related to sustainability and spatial usage. Additionally, there could be escalation of ecological apprehensions and other cross sectoral...

The Dolnet fishing along the northwest coast of India is a traditional one and unique in many ways. Gujarat is the lead maritime state of the country in dolnet fishing. The Dolnets in the region are operated by both the mechanized and motorized dolnetters. The overall length (OAL) of dolnetter’s range between 12 and 14 m and powered with an engine...

This CMFRI Marine Fisheries Policy Series No.16 give a deep insight into the marine fisheries Sector of Gujarat. The document present a status report, major challenges and proposes mitigation measure to combat the issue and ensure long term sustainability of the sector.

िेमीपेरटस जापोफिकस, िेमीपेरेटी पररवार से सिंबिंफधत ै, इसको आम तौर पर "जापािी थ्रेडफिि ब्रीम" के िाम से जािा जाता ै। एि. जपोफिकस के फवफभन्न जीवि चरर्ोिं (अपररपक्व और पररपक्व) के स्थाफिक-लौफकक फवतरर् का अध्ययि जीआईएस आधाररत जीव फवज्ञाफिक अवलोकि के आधार पर मछली पकड़िे के सटीक भौगोफलक फिदेशािंक और सिंबि जािकारी मछली पकड़िे के समय की, मछली पकड़िे की ग र...

Diversification of shrimp farming with marine finfish in a farmer participatory research model was attempted. The study is intended to find an economically viable finfish culture during the fallow period of shrimp farms. The Silver pompano, Trachinotus blochi iintercropped with Pacific white shrimp, Litopenaeus vannamei culture in coastal shrimp po...

The study reflects the importance of mesopelagic fishes in the diet of demersal predatory fishes along the northeastern Arabian Sea. The study also reports a representation of gapers in the diet of predatory fishers.

The article presents the key field identification characters of co-occurring species of the genus Nemapteryx along the north-eastern Arabian sea and highlights the misidentification of N. macronotacantha as juveniles or sub-adults of N. caelata.

Lakshadweep islands boast of having one of the most sustainable fishing techniques for tuna fisheries - the pole and line. Fisheries, especially the skipjack tuna pole & line fishery is the mainstay of the economy of the islands. On the strength of its very low ecological impacts, the fishery is in course to attain the Marine Stewardship Council (M...

Dol net is traditionally used for fishing along the north-west coast of India. In this study, the operational as well as economic aspects of dol net operation off Navabandar, Gujarat was studied. Dol nets operations from mechanised boats locally called as Van along Navabandar coast were considered for the present study. The overall length (OAL) of...

Longtail tuna Thunnus tonggol (Bleeker, 1851) is the major tuna resource in the neritic realms of the northern Arabian Sea and forms considerable fishery in the coastal nations in the region. Gujarat, on the north-west coast is the major province landing longtail tuna in India. The paper attempts to add to the hitherto sparse knowledge base on biol...

p>The largehead ribbonfish, Trichiurus lepturus Linnaeus, 1758 forms a major fishery along north-west coast of India comprising the two coastal states of Gujarat and Maharashtra. Diet composition was analysed for five years (2010-2014) to understand shifts if any in the prey items. Seasonal changes in the prey items were studied for three years (20...

Occurrence of non-target, associated and dependent species is a feature of tuna gillnet fisheries world-over, posing a great concern for fisheries management. Predominance of small-scale or artisanal fisheries in the region compounds the concern due to the uncertainty in data. There is dearth of information on the catches and the non-target species...

Occurrence of non-target, associated and dependent species is a feature of tuna gillnet fisheries world-over, posing a great concern for fisheries management. Predominance of small-scale or artisanal fisheries in the region compounds the concern due to the uncertainty in data. There is dearth of information on the catches and the non-target species...

Dolnetters contributed significantly to the fish production in Gujarat. However, dol net fishermen usually live in poverty threshold. Available secondary data suggests that overfishing prevails in Indian marine sector. While considering the complexity of dol net operations and the importance of fishery along North West coast of India present study...

Bio-geologically significant nutrients like nitrates, phosphates and silicates were analyzed to study the additive influence on the productivity of the ecosystem. Chlorophyll-a (Chl-a) is a principal productivity pigment present in the marine ecoregion, which is considered as a proxy for productivity. Sampling was carried along off Gujarat coast of...

Identification of spatio-temporal distribution of fish species represents fundamental information for stock assessment which in turn is essential for formulation of fishery management plans as well as for GIS based decision making. This study investigated the spatio-temporal distribution and abundance of different life stages of ribbonfish, Trichiu...

The present study was aimed at to understand socio-personal profile of dol net operators along Navabandar coast. .Tunagadh, Gujarat. There was not rnuch more study was reported along the Indian coast regarding the socio-personal study of Dol net operators. Age group of 40-50 years was more as Dol net owners, whereas the highest number of dol net ow...

In India, the seafood export gradually increased from a mere earning of Rs. 3.98 crores in 1961-62 to Rs. 30213.26 crores in 2013-14 and in terms of quantity the export increased from mere 15732 tonnes to staggering 9.83 lakh tonnes in the same period. Three-year moving average for export and production shows increasing trend with a correlation coe...

The study was conducted to study the biological diversity of phytoplankton and the impact of biological factors on them along the coastal waters at two locations viz., Location -1 (Jalaleshwar) and Location -2 (Sagareshwar Mandir), Veraval fromMay 2012 to April 2013. Six classes of marine phytoplankton were identified from these locations. Out of t...

The present study deals with gastropod community structure along Veraval coast, Gujarat. Total five gastropod species were selected viz., Turbo intercostalis, Turbo coronatus, Cerithium morus, Cellana radiata and Chiton peregrines for present study from October 2012 to April 2013. The physio-chemical parameters viz., water temperature ranged betwee...