NDLI: Population dynamics of the pharaoh cuttlefish Sepia pharaonis (Mollusca: Cephalopoda) in the Arabian Sea coast of Oman

Please wait, while we are loading the content...

Population dynamics of the pharaoh cuttlefish Sepia pharaonis (Mollusca: Cephalopoda) in the Arabian Sea coast of Oman

Content Provider	Semantic Scholar
Author	Mehanna, Sahar Fahmy Al-Kharusi, Lubna H. Al-Habsi, S.
Copyright Year	2013
Abstract	The stock of pharaoh cuttlefish Sepia pharaonis was assessed based on 4616 specimens (1895 males, 2051 females and 670 unsexed), collected during the demersal fishery survey in the Arabian Sea coast of Oman between September 2007 and August 2008 and from November 2011 to June 2012. Age and growth were studied based on length frequency data using Bhattacharya’s method. There was no significant difference in growth between sexes and the longevity was estimated to be five years for mantle length (ML) range 1.7 – 44 cm. The estimated von Bertalanffy growth parameters were L∞ = 46.21 cm ML, K = 0.52 y -1 and t 0 = 0.1 y. The instantaneous rates of total (Z), natural (M) and fishing (F) mortalities were 2.57, 0.997 and 1.57 y -1 respectively with exploitation rate (E) of 0.61 and exploitation ratio (U) of 0.66. The estimated ML at first capture (L c ) was 12 cm, while the ML at first sexual maturity (L m ) was 19.60 cm. The yield per recruit model revealed that S. pharaonis stock in the Arabian Sea is heavily exploited, but has a scope to increase the yield by increasing the length at first capture to be not less than 20 cm ML. Also, there is an urgent need to protect juveniles and under-sized part of the stock.
Starting Page	7
Ending Page	11
Page Count	5
File Format	PDF HTM / HTML
Volume Number	61
Alternate Webpage(s)	http://epubs.icar.org.in/ejournal/index.php/IJF/article/download/21926/17804
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in