Calculation of the effective indices of a GaN/In Ga1−N optical guiding structure

Anani, M.; Mathieu, C.; Abid, Hamza; Lebid, Sara; Amar, Youcef

doi:10.1016/j.mejo.2007.03.016

Cited by 2 publications

(1 citation statement)

References 9 publications

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“…On the contrary, the eastern part of the Gulf is characterized by flat bottoms (Kies et al, 2012), favoring the practice of trawl fishing over a large area. The eastern area shows a slight slope, particularly from 50m to 100m isobaths, where depth decreased with a very gentle slope, making the area quite suitable for trawl fishing (Caulet et al, 1979;Amar et al, 2007). These differences between the two areas are the main reasons that produce different fishing strategies according to the target species.…”

Section: Study Areamentioning

confidence: 99%

Fish Assemblages of the Bottom Trawl Fishery off Mostaganem, the Gulf of Arzew, Algeria, SW Mediterranean Sea

Belaid et al.

2023

Egypt. J. of Aquatic Biolo. and Fish.

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Several Mediterranean fisheries are experiencing flaws in the application of the management system based on input control, including Algeria, where the state of fisheries and stocks remain unclear. This paper focused on the characterization of the catches from bottom trawling by professional fishing vessels in the Mostaganem fishery (West of Algeria). Catch data were collected on board between 2017 and 2020 in two different fishing areas between isobaths 30 and 100 meters in depth. Out of a total of 87 species caught, discards represented a greater variety of species (74) than landings (57). Quantitatively, the landing weights were estimated at 7.8 tons, while the discard weights were lower, accounting for 1.8 tons. Between the two fishing areas, a significant difference was detected in the composition of discards and landings, while for the weights, the two areas were similar. Generally, the Mostaganem fishery is similar to other bottom trawl Mediterranean fisheries both for target and discard species. Otherwise, this research highlighted the existence of an uncontrolled black market, which sustains the practice of illegal, unregulated and unreported fishing, and potentially increases the rate of overexploitation.

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Section: Study Areamentioning

confidence: 99%

Fish Assemblages of the Bottom Trawl Fishery off Mostaganem, the Gulf of Arzew, Algeria, SW Mediterranean Sea

Belaid et al.

2023

Egypt. J. of Aquatic Biolo. and Fish.

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Investigation of the transverse electromagnetic modes in an embedded optical waveguide

Çetin¹,

Kılıçkaya²

2015

astp

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Calculation of the effective indices of a GaN/In Ga1−N optical guiding structure

Cited by 2 publications

References 9 publications

Fish Assemblages of the Bottom Trawl Fishery off Mostaganem, the Gulf of Arzew, Algeria, SW Mediterranean Sea

Fish Assemblages of the Bottom Trawl Fishery off Mostaganem, the Gulf of Arzew, Algeria, SW Mediterranean Sea

Investigation of the transverse electromagnetic modes in an embedded optical waveguide

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