Kebiasaan Makan Ikan dan Trofik Level Sepanjang Perairan Pantai Kabupaten Barru

Muh. Hatta(1*), Sri Mulyani(2),

(1) Fakultas Perikanan dan Ilmu Kelautan, Universitas Hasanuddin
(2) Fakultas Perikanan, Universitas 45 Bosowa
(*) Corresponding Author



Abstract


The purpose of this study is to determine the trophic structure of pelagic fish around Barru coastal waters.
So that by knowing the structure of the tropic level it can be determined the ideal number of populations that should
be captured at all trophic levels so that small and large pelagic fish resources can maximally and sustainably be
utilized. The benefits of this research with a trophic level approach can be made a model of fisheries management
policy in a region of the Makassar Strait in supporting the accelerated economic development program in the
Sulawesi Economic Corridor. The research method is taking data on environmental parameters and predation at each
trophic level including fish through observing fish gastric contents. Identification results of gastric contents indicate
that anchovy and tembang fish are plankton (planktivore) eaters because only Phytoplankton and zooplankton can
be found in their intestine. Pepetek fish, fish float and mackerel eat plankton and several types of larvae of small fish
and crustaceans so that they are classified as omnivores. Selar fish classify as carnivorous fish because in its
intestine found various types of small fish, shrimp, and various other animals and not obtained plankton as its main
food item. Anchovy and tembang fish which are included as planktivore, have a greater percentage of phytoplankton
in their intestines compared to zooplankton.


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