Page 105 - e-Book

were collected from sub-tidal & inter-tidal zones. All the possible substrates such as rocks,

bedrocks, artificial cement boulders, cliffs, calcareous molluscs, shells, and coastal wastes
like nets, plastics, cloths, etc. accessed by scrapping. Small and delicate or coralline algae

collected with great care to avoid any damage to the specimen. The collected samples were
preserved using standard methodologies of Wet Preservation (Liquid preservation) and Dry

Preservation (Herbarium). The identification of the seaweeds done by referring to standard
reference such as Phaeophyceae in India (Misra, 1966); Rhodophyta (Desikachary, 1990 &

1998); Catalogue of the Benthic Marine Algae of the Indian Ocean (Silva et al., 1996)

and Algae of India and Neighboring Countries I. Chlorophyta (Krishnamurthy, 2000).
Further, referred to the herbarium deposited at ISIM, Kolkata and CSIR-CSMCRI-MARS,

Ramnad. The nomenclature uncertainties were diagnosed with the aid of online resource to

provide the standard data on the algal flora from the northern Coastal districts of Andhra
Pradesh.

RESULT
The periodical survey was carried out from March 2017 to August 2019 and cited 22

localities from Srikakulam (18 localities) and Vizianagaram (4 localities) for the survey and
collection of marine macroalgae. Totally, 13 (9 from Srikakulam and 4 from Vizianagaram)

stations were recognized with the occurrence of seaweeds in various season. A sum of 350

individuals of seaweeds was collected from the 13 stations. The current attempt reveals that
the occurrence of 57 taxa of marine macroalgae from the 13 localities of northern districts

(Plate: II-VI). Among them, Rhodophyceae is the predominant class with 26 taxa (46%)
followed by Chlorophyceae with 20 taxa (35%) and Phaeophyceae is the least class with 11

taxa (19%) (Fig.2).

.

95