Distribution and biomass assessment of macroalgae from Moroccan Strait of Gibraltar.

被引:4
作者
Adama, Diakite [1 ,2 ]
Mohammed, Aourach [1 ]
Maroua, Haddadi [1 ]
Mohammed, Elboukari [1 ]
Essalmani, Haiat [1 ]
Mouna, Daoudi [2 ]
机构
[1] Fac Sci & Technol, Dept Biol, BP 416, Tangier 90000, Morocco
[2] Reg Ctr Natl Inst Halieut Res, Tangier 90000, Morocco
关键词
Macroalgae; Biomass; Distribution map; Gelidium; Pterocladia; ATLANTIC COASTS; CAPILLACEA GELIDIALES; CHECKLIST; SEAWEEDS; RHODOPHYTA; COMMUNITIES; GROWTH;
D O I
10.1016/j.chnaes.2021.01.004
中图分类号
Q14 [生态学(生物生态学)];
学科分类号
071012 ; 0713 ;
摘要
The taxonomic richness, population structure, biomass assessment, and geographic distribution of macroalgae were studied between May 2017 and July 2018 from the Moroccan strait of Gibraltar. The study was based on the economic, ecological and environmental interests of macroalgae on a national scale. Samples were harvested by Scuba diving. Sixty-seven species, including one recently introduced in the Strait, have been identified. They were distributed over four classes: Bangiophyceae (2 species), Florideophyceae (36 species), Phaeophyceae (17 species), and Ulvophyceae (12 species). The distribution map of the most abundant agarophytes, Gelidium attenuatum and Pterocladia capillacea, was constructed from GPS and field data using System Information Geographic software. G. attenuatum stands extended from 1 to 7 m depth, with maximum biomass at 1 m. The population analysis revealed thalli up to 15.8 cm long, with the length class 11-13 cm mostly represented. As for the population of P. capillacea, it was located from 0 to 1.50 m depth, with highest biomass at 0-0.50 m depth. Unlike Gelidium, P. capillacea stands were distributed from 5 to 12 cm, with 85% measuring between 7 and 11 cm long. The estimated total biomass of G. attenuatum and P. capillacea was 7.77 +/- 3.57 t of fresh weight and distributed on two sectors: Mrisat (66.66%) and Oued-Alian (33.34%). This Finding indicates a relatively low biomass in the strait.
引用
收藏
页码:442 / 450
页数:9
相关论文
共 67 条
[1]   Production, respiration and exudation of dissolved organic matter by the kelp Laminaria hyperborea along the west coast of Norway [J].
Abdullah, MI ;
Fredriksen, S .
JOURNAL OF THE MARINE BIOLOGICAL ASSOCIATION OF THE UNITED KINGDOM, 2004, 84 (05) :887-894
[2]  
Ainane T., 2011, THESIS
[3]  
Alpers W., 2008, Remote Sensing of the European Seas, P319
[4]  
[Anonymous], 1997, Hydrocolloid Applications: Gum Technology in the Food and Other Industries
[5]   Distribution and maximum growth depth of Fucus vesiculosus along the Gulf of Finland [J].
Bäck, S ;
Ruuskanen, A .
MARINE BIOLOGY, 2000, 136 (02) :303-307
[6]  
Barbara I, 2013, Algas marinas y salobres de galicia y norte de Espana: Parte 2 Guia fotografica
[7]   A checklist of the seaweeds of the Mediterranean and Atlantic coasts of Morocco. IV. Rhodophyceae - Ceramiales [J].
Benhissoune, S ;
Boudouresque, CF ;
Perret-Boudouresque, M ;
Verlaque, M .
BOTANICA MARINA, 2003, 46 (01) :55-68
[8]   A checklist of the seaweeds of the Mediterranean and Atlantic Coasts of Morocco. III. Rhodophyceae (excluding Ceramiales) [J].
Benhissoune, S ;
Boudouresque, CF ;
Perret-Boudouresque, M ;
Verlaque, M .
BOTANICA MARINA, 2002, 45 (05) :391-412
[9]   A checklist of the seaweeds of the Mediterranean and Atlantic coasts of Morocco. II. Phaeophyceae [J].
Benhissoune, S ;
Boudouresque, CF ;
Verlaque, M .
BOTANICA MARINA, 2002, 45 (03) :217-230
[10]   A check-list of marine seaweeds of the Mediterranean and Atlantic coasts of Morocco.: I.: Chlorophyceae Wille s. l. [J].
Benhissoune, S ;
Boudouresque, CF ;
Verlaque, M .
BOTANICA MARINA, 2001, 44 (02) :171-182