Neki biološki parametri trlje blatarice Mullus barbatus L., 1758, u tuniskom zaljevu

The red mullet, Mullus barbatus L. 1758 is one of the main target species of the trawl fishing industry along the continental shelf off the Tunisian Gulf. The reproductive biology of this species has been studied based on statistical sampling conducted between February 2003 and January 2004. Length frequency distribution according to sex revealed that the females were highly represantative in the majority of size classes. Monthly variations in the gonadosomatic index (GSI) showed that males spawn from April to July, whereas the reproductive activity of the females occurs in the late spring and summer (May and July). The estimated lengths at maturity (Lm50) were 13.87 cm for males and 13.94 cm for females. According to the length-weight relationship, positive allometry was confirmed for males, females and pooled sexes.Trlja blatarica, Mullus barbatus L. 1758 je jedna od najvažnijih komercijalnih vrsta koćarskog ribarenja duž obale tuniskog zaljeva. Reprodukcija ove vrste je istraživana na ulovljenim primjercima tijekom uzorkovanja od veljače 2003. do siječnja 2004. Ustanovljena učestalost prema duljini i spolu ukazuje da su ženke rasprostranjenije i u većini u svim razredima. Mjesečna kolebanja gonadosomatskog indeksa (GSI) pokazuju da se mužjaci mrijeste od travnja do srpnja, dok su ženke reproduktivno aktivne u kasno proljeće i ljeto (svibanj, lipanj i srpanj). Duljina pri spolnoj zrelosti (Lm50) iznosila je 13.87 cm za mužjake i 13.94 cm za ženke. Prema duljinsko-masenom odnosu, pozitivna alometrija je ustanovljena za mužjake, ženke i ukupni uzorak

An Unequal Cluster-based Routing Protocol Based on Data Controlling for Wireless Sensor Network

Wireless Sensor Networks (WSN) differ from traditional wireless communication networks in several characteristics. One of these characteristics is power awarness, due to the fact that the batteries of sensor nodes have a restricted lifetime and are difficult to be replaced. Therefore, all protocols must be designed to minimize energy consumption and preserve the longevity of the network. In this paper, we propose (i) to fairly balance the load among nodes. For this, we generate an unequal clusters size where the cluster heads (CH) election is based on energy availability, (ii) to reduce the energy consumption due to the transmission by using multiple metrics in the CH jointure process and taking into account the link cost, residual energy and number of cluster members to construct the routing tree and (iii) to minimize the number of transmissions by avoiding the unnecessary updates using sensitive data controller. Simulation results show that our Advanced Energy-Efficient Unequal Clustering (AEEUC) mechanism improves the fairness energy consumption among all sensor nodes and achieves an obvious improvement on the network lifetime

Electric Vehicle Powertrain Analysis: Comparison Between PMSM and HESM

International audienc

Video Replication over a New Architecture DASH-DMS

International audienc

Video Replication over DASH in Distributed Multimedia Systems

International audienc

An Unequal Cluster-based Routing Protocol Based on Data Controlling for Wireless Sensor Network

International audienc

A new fault-tolerant architecture based on DASH for adaptive streaming video

International audienc

DASH-DMS: To improve streaming video over HTTP

International audienc