Realm: Marine
Climate: Tropical
Biome: Mangroves
Central latitude: -4.430852
Central longitude: 39.517082
Duration: 3 years, from 1994 to 1996

2231 records

153 distinct species

Across the time series Leptoscarus vaigiensis is the most frequently occurring species

Methods

This dataset is a subset containing only beam trawls using 2 mm meshed inner lining conducted at stations. Thirty-two beam trawl (1.5m beam, 5mm-mesh size) samples were taken over the entire bay and creeks (Fig. 2.2) in a 4-day spatial campaign in October 1994. Another 10 samples were taken with the beam trawl on the 17 and 19 July 1996 in the western creek and in the bay (i.e., 2 tows in the creek, 2 at the mouth, and 3 in the seagrass beds on either side (eastern and western sides) of the bay. Seven stations (marked on Fig. 2.1) were further sampled monthly with a 2mm meshed inner lining in the beam trawl net from December 1994 to September 1996 (22 months). Samples were always taken during daytime and each tow took 10 minutes (actual towing time) with a zodiac equipped with a 25-hp outboard. Ten fykenets (26mm mesh size, 18mm mesh size in the codend, 0.864m2 mouth opening, and 1.765m wings) were deployed during low tide in a shallow mangrove channel in the eastern creek for 4 days and 1 night in August 1993. A dragnet (20mm-mesh size) was concurrently deployed in the same channel. In the field, all fish were sorted out of the debris collected by the nets and immediately preserved in a 10% seawater-formaldehyde solution. In the laboratory, all fish specimens were identified to species level using the keys provided in Smith & Heemstra (1986), Smith & Smith (1963), Smith (1961), Bianchi (1985), and Fischer & Bianchi (1984) and counted. Catch data on fish and invertebrates for monthly beam trawl samples taken at 38 locations in Gazi Bay between October 1994 and September 1996.

Citation(s)

@Misc{BioTIME_cit319, Study_id = {519}, Citation_id = {319}, Author = {Wakwabi, E. O. and Vincx, M. and Marine Biology Section and Zoology Institute. Ugent: Belgium}, Publisher = {VLIZ}, Title = {Spatial and temporal ichthyofauna community of a tropical mangrove Bay (Gazi Bay, Kenya) sampled between 1994 and 1996}, Type = {dataset}, Year = {2016}, Url = {https://doi.org/10.14284/152} }<br/>@phdthesis{BioTIME_cit320, Author = {Wakwabi, E. O.}, year = {1999}, school = {University of Ghent, Zoology Institute, Marine Biology Section}, Title = {The ichthyofauna of a tropical mangrove bay (Gazi Bay, Kenya): community structure and trophic organisation}, Type = {phdthesis} }