Research Article August
2016
© 2016, IJERMT All Rights Reserved Page | 116
International Journal of
Emerging Research in Management &Technology
ISSN: 2278-9359 (Volume-5, Issue-8)
Relationship Between Sea Surface Temperature and Chlorophyll-a
with the Production and Productivity of Skipjack on
Bacan Island Waters
Amirul Karman
*
Fishing Department,
Marine Science and
Fishery Faculty, Khairun
University, Ternate,
Indonesia
KusdiIksan
Management of Aquatic
Resource Department, Marine
Science and Fishery Faculty,
Khairun University, Ternate,
Indonesia
Surahman
Fishing Department,
Marine Science and
Fishery Faculty, Khairun
University, Ternate,
Indonesia
Sunarti
Management of Aquatic
Resource Department, Marine
Science and Fishery Faculty,
Khairun University, Ternate,
Indonesia
Abstract:
ea surface temperature (SST) and chlorophyll-a concentration level influenced on skipjack spatial and
temporal distribution. Skipjack tuna fishing operation rely on its distribution information to obtain the best
fishing operation efficiency. Main problem to obtain the fishing operation efficiency are the availability of
data and information on oceanography condition related with the skipjack fishing. This research aim is to analyse the
skipjack tuna fishing production and productivity correlation between sea surface temperature and chlorophyll-a on
Bacan Island waters based on spatial and temporal (quarterly, seasonal and calendar periods). Landing data collected
from landing site at Panamboang fishing port in Bacan Island for five years of time series (2008-2012). The research
was conducted from July to September 2012. SST and chlorophyll-a data was downloaded from Aqua-MODIS Level-3
satellite data with 0.05
0
x 0.05
0
spatial resolution and 8 days of temporal resolution from January 2008 to December
2012. The result found that highest skipjack tuna production and productivity was on quarterly-IV of calendar period
on 2010 of year seasonal. Skipjack tuna production and productivity has correlation with SST.
Keywords: SST, chlorophyll-a, skipjack, Bacan Island
I. INTRODUCTION
Bacan Islandwater located at Maluku Sea Waters within Indonesia Fishing Management Area ( WPP RI) 8 or know
as WPP 715 includes Maluku Sea, Bay ofTomini and Seram Sea. This location also known as Indonesian Sea Current
(ARLINDO) which is one of Indonesia sea current system connection between Indian Ocean and Pacific Ocean through
eastern Indonesian water [1].When this sea current passing through Indonesian waters, ARLINDO current mixed with
other oceanic materials from Indian and Pacific Ocean.These material includes its characteristics such as temperature,
salinity, oxygen, chlorophyll and other tracers as indicates of water productivity [2]. As one of important ARLINDO, this
area known as one of the richest nutrient for the availability of phytoplankton. On the food chain, phytoplankton eaten by
small fish and then by the large fish like tuna. In addition to nutrients, another factors that affecting the skipjack
distribution is the SST as reported by [3], that SST influence the skipjack distribution with the vary range temporally and
spatially.
Another researchers, [4]; [5]; [6]; and [7] that changes in abundance of fish in the specific area as the result of fish in
response to the changes of the environment condition. Tuna is a cosmopolitan species, their distribution and life cycle are
not limited to a specific area. Therefore, any change in environment condition somewhere will affect the skipjack
elsewhere.Skipjack response to environmental changes in narrow meaning but widespread in the ecological limits.
Ecological limit determined by skipjack tolerances range against their environment conditions. Skipjack fishing requires
the information on their distribution to make the fishing activity more efficient. Skipjack distribution can be clarified by
the changes of the sea characteristics.
As reported by [8] that fishing ground is influenced by the oceanographic characteristics: chemicals, physics and
biology, e.g. temperature (SST; vertical and horizontal), salinity, chlorophyll-a concentration, thermal front and
upwelling phenomena. Those water characteristics phenomenon can be identify as indicator of potential fishing ground.
Oceanographic characteristics information can be obtained from remote sensing tenchology.
According to [9] that upwelling can be detected by the condition of low SST and high of chlorophyll-a concentration
compared to surrounding areas. Areas with high density of chlorophyll-a concentration indication of rich nutrient
assumed as potential of tuna schooling ground. These SST and cholophyll-a concentration of oceanography conditions as
a basic parameter to determine tuna fishing ground. For this research, fishing ground determination based on strong
upwelling assumption and according to [10] research that occurrence of a strong upwelling where the SST below 26
0
C
with chlorophyll-a concentration above 2 mg/m. Based on a research conducted by [11] that with remote sensing
technology then it can be obtained information on SST and chlorophyll-a concentration wider and more efficient rather
than direct on-situ observation.
The main problem to optimize skipjack catches is data and information limitation on oceanographic characteristics to
obtain the efficiency from fishing operation. Based on that condition this research is to fill gap on the analysis of
S