English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Pinctada radiata is the first lessepsian bivalve in the Mediterranean Sea where it has been progressively expanding westwards. This comparative study provides the first insight into the population dynamics of the species by investigating the population structure, growth, mortality, and exploitation status in the coastal zone (site A; 0-1 m) and midshore area (site B; 14 m depth). The results showed that the asymptotic shell length was smaller in the coastal zone (L∞ = 78.75 mm) compared to that in the midshore station (L∞ = 105 mm). Growth coefficient (K) was higher in site A (1.70 yr1) than in site B (0.66 yr-1). Growth performance index (Φ’) values were almost similar (4.023 and 3.862) in both pearl oysters stocks. The theoretical maximum age (Tmax) was smaller in site A (2.66 yr-1) than in site B (7.05 yr-1). Total mortality (Z) was estimated by length-converted catch curve at 6.18 and 1.62 yr-1, fishing mortality (F) at 4.43 and 0.78 yr-1 and natural mortality (M) at 1.75 and 0.83 yr-1 for site A and site B, respectively. Recruitment was continuous and showed two major pulses in the two sampling sites.

turkish journal of fisheries and aquatic sciences

Comparison of the Dynamics between Coastal and Midshore Populations of Pinctada radiata (Leach, 1814) (Mollusca: Bivalvia) in the Gulf of Gabes, Tunisia