Climatic Variability and Diversification in Fishery Livelihood- a Case Study of Puffer Fish Fishery along South-Eastern Arabian Sea

Length-weight relationship (LWR), condition factor, sex ratio, gonadosomatic index (GSI) hepatosomatic index (HSI) of the smooth blaasop puffer fish Lagocephalus inermis (Temminck and Schlegel, 1850), an emerging fishery resource along south-eastern Arabian Sea were studied from 1,722 samples collected during August 2017-May 2019 from Mangalore Fishing Harbour, Karnataka, India. LWR indicated negative allometric growth [W = 0.034805L2.76 (males); W = 0.033574L2.78 (females), W = 0.033979L2.77 (pooled)] and significant difference was observed in the b value of the fishes. Sex ratio was 1:1.08. The ratio was unusually high during post-monsoon and Chi-square test revealed that the monthly sex ratio did not vary significantly throughout the year except for December and January (p<0.01). Condition factor (K) and relative condition factor (Kn ) also were not significantly different between sexes. Two peak spawning seasons were identified - NovemberFebruary and August. The GSI was highest in August (female = 8.08 and male = 5.82) and lowest in May (female = 3.32 and male = 3.49). The HSI value was found to be inversely related to GSI and was highest in May (5.21) and lowest in August (3.99). These parameters are essential pre-requisites for stock assessment and sustainable management of the fishery resource.

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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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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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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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