Biology and life history of the purpleback squid Sthenoteuthis oualaniensis from the Arabian Sea

Ragesh, N (2021) Biology and life history of the purpleback squid Sthenoteuthis oualaniensis from the Arabian Sea. Doctoral thesis, ICAR- Central Marine Fisheries Research Institute.

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Abstract

The global food demand is rising, and the expanding land-based food production is beset with environmental and health concerns. Because seafood is nutritionally diverse and avoids or lessens many of the environmental burdens of terrestrial food production, it is uniquely positioned to contribute to both food provision and future global food and nutrition security (Costello et al., 2020). Food from the sea represents only 17% of the current production of edible meat. It is estimated that edible food from the sea could increase by 21-44 million tonnes by 2050, a 36-74% increase compared to current yields (Costello et al., 2020). This represents 12-25% of the estimated increase in all meat needed to feed 9.8 billion people by 2050. Marine fisheries are very important to the economy and wellbeing of coastal communities, providing food security, job opportunities, income and livelihoods as well as a traditional cultural identity. The increasing exploitation of finfish resources, and the depletion of a number of major fish stocks that formerly supported the industrial-scale fisheries, forces continued attention to the once called ‘unconventional marine resources’, which include numerous species of cephalopods. Cephalopod catches have increased steadily in the last 40 years, from about 1 million metric tonnes in 1970 to more than 4 million metric tones in 2007 (FAO, 2009), (Jereb and Roper, 2010). The number of cephalopod species that enter commercial fisheries has continued to grow significantly since 1984, as a result of a still-growing market demand and the expansion of fisheries operations to new fishing areas and to deeper waters (FAO, 2010).

Item Type:	Thesis (Doctoral)
Uncontrolled Keywords:	Sthenoteuthis oualaniensis; S. oualaniensis; purpleback squid; Arabian Sea
Subjects:	Molluscan Fisheries > Cephalopods Molluscan Fisheries Theses
Divisions:	CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division Subject Area > CMFRI > CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division Subject Area > CMFRI-Kochi > Marine Capture > Molluscan Fisheries Division
Depositing User:	Arun Surendran
Date Deposited:	08 Oct 2021 06:58
Last Modified:	08 Oct 2021 06:58
URI:	http://eprints.cmfri.org.in/id/eprint/15400

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