Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 4 of 4 for “"Loligo reynaudii"”.
-
Some factors influencing the transport of chokka squid (Loligo reynaudii dOrbigny, 1839) paralarvae off the Eastern Cape, South Africa
This thesis focuses on these raised concerns and attempts to refine the modelling approach used to test the WTH. This is achieved by investigating squid paralarval survival and their specific gravity using aquarium experiments together with an improved ocean model and IBM. The influence of …
-
An investigation of spatial-temporal diel changes in Loligo reynaudii catch rates in the commercial squid jig fishery of South Africa
Loligo reynaudii (chokka) squid has been jigged commercially on the South African South-southeast coast since 1982. Starting in 2019, a chokka-directed hydroacoustic survey programme has formed part of scientific efforts to best inform the management of this fishery, mainly focussed on surveying at …
-
Recruitment variability of Chokka squid (Loligo Reynaudii) - the role of the cold ridge, currents and retention on the Agulhas Bank, South Africa
… specific, and in the case of the chokka squid Loligo reynaudii, are unknown. This thesis addresses this knowledge gap and is fundamentally based on Bakunâs (1996)1 generalised triad of requirements for successful recruitment â enrichment, concentration and retention in the ecosystem. For chokka …
-
Assessing the effect of feather wear on carbon and nitrogen stable isotope ratios, and the use of stable isotopes to determine predator diets in the Namibian Islands marine protected area
… resources; sardine (Sardinops sagax), squid (Loligo reynaudii), and rock lobster (Jasus lalandii). This work highlights the most likely prey items used by marine top predators outside of the breeding period, and provides new insights into the food web of this region. Prior to the start of …