A critical analysis of diet in seventeen deep sea fishes along the South-eastern Arabian Sea

Diet analysis of 1190 fishes belonging to 17 species of deep sea fishes were conducted. The samples were collected from the South-eastern Arabian Sea in bottom trawl by the research vessel FORV Sagar Sampada (cruise no. 322 and 345) during January 2014 and October 2015, between lat. 7- 150N and long. 78 - 720E in the depth range 200 - 1000 m. Diet composition, feeding strength, size range, depth range, distribution and index of preponderance were ascertained for all the species. It was observed that the deep sea fishes mainly feed on benthic and epibenthic organisms such as fishes, shrimps, crabs and squids, revealing their carnivorous nature. Deep sea shrimps are one of the major diet components of these fishes, which is an indication of the availability of good quantity of deep sea shrimps, along the South-eastern Arabian Sea and this abundant population can be commercially utilised in order to lessen the pressure of overexploitation being experienced in case of coastal shrimps.

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Functional approach reveals low niche overlap among common deep-sea fishes from the south-eastern Arabian Sea

Deep Sea Research Part I Oceanographic Research Papers ◽

10.1016/j.dsr.2016.11.011 ◽

2017 ◽

Vol 119 ◽

pp. 16-23 ◽

Cited By ~ 4

Author(s):

K.V. Aneesh Kumar ◽

V.M. Tuset ◽

Hashim Manjebrayakath ◽

K.S. Sumod ◽

M. Sudhakar ◽

...

Keyword(s):

Deep Sea ◽

Arabian Sea ◽

Niche Overlap ◽

Functional Approach ◽

The South ◽

South Eastern ◽

Eastern Arabian Sea

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DEMOGRAPHICS OF A HEAVILY EXPLOITED DEEP WATER SHARK ECHINORHINUS CF. BRUCUS (BONNATERRE, 1788) FROM THE SOUTH-EASTERN ARABIAN SEA

Indian Journal of Fisheries ◽

10.21077/ijf.2019.67.1.92453-02 ◽

2020 ◽

Vol 67 (1) ◽

Author(s):

K.V Akhilesh ◽

C. Anulekshmi ◽

K.K. Bineesh ◽

U. Ganga ◽

N. G. K. Pillai

Keyword(s):

Deep Water ◽

Deep Sea ◽

Arabian Sea ◽

Stock Assessment ◽

Shark Species ◽

The South ◽

South Eastern ◽

Eastern Arabian Sea ◽

Trawl Fisheries ◽

Slow Growing

In the absence of direct consumption importance and considering as low value bycatch, many vulnerable non-target species, especially slow growing deep water fauna, are overlooked in tropical fisheries research and management. The bramble shark Echinorhinus cf. brucus (Bonnaterre, 1788) is one such species, subjected to a significant non-targeted deep water fishery off southern India. A length frequency based stock assessment of bramble shark caught in trawl fisheries from the south-eastern Arabian Sea suggests that, E. cf. brucus is a moderately slow growing (K=0.12 year-1) and moderately long lived shark species (Tmax = 25 years, L¥= 333 at corresponding age of 55 years) which is overexploited (M=0.17, Z=0.39) in the region. In view of resilience capacity and vulnerability of deep sea fisheries, improved research and monitoring programmes are urgently required to ensure a sustainable future for India’s expanding deep-sea and distant water fisheries.

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Systematics and biology of the blue lanternfish, Diaphus coeruleus from the south-eastern Arabian Sea

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315417002004 ◽

2018 ◽

Vol 99 (1) ◽

pp. 239-248

Author(s):

K. M. Meera ◽

M. Hashim ◽

V. N. Sanjeevan ◽

J. Jayasankar ◽

T. V. Ambrose ◽

...

Keyword(s):

Body Weight ◽

Deep Sea ◽

Arabian Sea ◽

Allometric Growth ◽

Gut Content ◽

The South ◽

South Eastern ◽

Eastern Arabian Sea ◽

Maturation Stages ◽

The Mean

The paper presents the first detailed study on systematics, otolith structure and biology of Diaphus coeruleus, from the south-eastern Arabian Sea. The closely related and co-inhabiting species D. coeruleus and D. watasei are distinguished on the basis of morphometric, meristic and otolith characters. Analysis of gut content revealed that these fishes mainly feed on deep sea squids and shrimps. Six maturation stages of gonads are identified in males (immature, quiescent, mature, ripe, spawning and spent) and five stages (immature, quiescent, mature, ripening and spawning stages) in females. Overall sex ratio deviated in favour of males (1 male: 0.2 female) and the mean fecundity was 2150 ± 353 eggs. The length-weight relationship shows an overall isometric growth in males with N = 76 and b = 3.13 and for females with N = 17 and suggests negative allometric growth (b = 1.719). Otolith length (LO) and otolith weight (WO) are positively correlated to standard body length (LS) and body weight (BW).

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Response of macrozoobenthic communities to summer monsoon upwelling and related hypoxia in the south eastern Arabian Sea shelf

Marine Environmental Research ◽

10.1016/j.marenvres.2021.105278 ◽

2021 ◽

Vol 166 ◽

pp. 105278

Author(s):

K.U. Abdul Jaleel ◽

Usha V. Parameswaran ◽

Aiswarya Gopal ◽

Chippy Khader ◽

V.N. Sanjeevan ◽

...

Keyword(s):

Summer Monsoon ◽

Arabian Sea ◽

The South ◽

South Eastern ◽

Eastern Arabian Sea

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Interannual variability of chlorophyll-a and impact of extreme climatic events in the South Eastern Arabian Sea

Regional Studies in Marine Science ◽

10.1016/j.rsma.2021.101986 ◽

2021 ◽

Vol 48 ◽

pp. 101986

Author(s):

Muhammad Shafeeque ◽

Grinson George ◽

S. Akash ◽

B.R. Smitha ◽

Phiros Shah ◽

...

Keyword(s):

Interannual Variability ◽

Chlorophyll A ◽

Arabian Sea ◽

The South ◽

Extreme Climatic Events ◽

South Eastern ◽

Eastern Arabian Sea

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First report on the diet and reproductive biology of red-toothed triggerfish Odonus niger (Ruppell, 1836) from the south-eastern Arabian Sea

Journal of the Marine Biological Association of the United Kingdom ◽

10.1017/s0025315421000771 ◽

2021 ◽

pp. 1-11

Author(s):

Nitin Kanji Suyani ◽

Mridula Rajesh ◽

Kothanahally Mallegowda Rajesh

Keyword(s):

Reproductive Biology ◽

Arabian Sea ◽

Feeding Habits ◽

Gonadosomatic Index ◽

Biological Information ◽

The South ◽

Spawning Period ◽

South Eastern ◽

Eastern Arabian Sea ◽

Males And Females

Abstract The feeding habits and reproductive biology of red-toothed triggerfish Odonus niger (Ruppell, 1836) was analysed from 449 specimens collected from the Karnataka coast of the south-eastern Arabian Sea. Of the total stomachs examined, only 54 (12%) were empty and 395 contained food remains. The diet comprised crustacean remains (48.0%), zooplankton (21.4%), algae (16.5%), fish remains (6.1%) and cephalopod remains (5.3%) along with partially digested matter (2.3%) and detritus (0.4%). The species was found to be a generalist feeder and an omnivore. The overall sex ratio between males and females (1: 0.44) was significantly (P < 0.05) different. Histological examination of the ovaries indicated asynchronous ovarian development in females, with males maturing earlier than females. The gonadosomatic index (GSI) patterns of males and females, and the presence of ripe ovaries and spermatozoids suggested that April–May is the peak spawning period. The absolute and relative fecundity estimates ranged from 16,464–312,420 eggs and 251–2812 eggs g−1 respectively. Fecundity was positively correlated with total length and body weight. The biological information on diet composition and reproductive traits provided for the first time in this study can facilitate conservation, management and sustainable exploitation of this species in the study area.

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Description of a new species of deep-sea spider crab from the genus Crocydocinus Lee, Richer de Forges & Ng, 2019, from the south-eastern Arabian Sea (Crustacea: Decapoda: Majoidea: Epialtidae)

Zootaxa ◽

10.11646/zootaxa.4816.2.8 ◽

2020 ◽

Vol 4816 (2) ◽

pp. 229-234

Author(s):

VINAY P. PADATE ◽

BEE YAN LEE ◽

SHERINE SONIA CUBELIO

Keyword(s):

New Species ◽

Deep Sea ◽

Arabian Sea ◽

Spider Crab ◽

South Eastern ◽

Sea Spider ◽

Southeastern Arabian Sea ◽

Eastern Arabian Sea ◽

A New Species ◽

Branchial Region

A new species of spider crab is described from two male specimens collected from the southeastern Arabian Sea. This species differs from its congeners in the absence of uograstric granule on carapace, the presence of two granules along lateral margin of carapace at branchial region, the presence of granules on P2–P4 dactyli and the constricted distal tip of the male first gonopod.

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