Striped marlin
The striped marlin (Kajikia audax) is a species of marlin found in tropical to temperate Indo-Pacific oceans not far from the surface. It is a desirable commercial and game fish. The striped marlin is a predator that hunts during the day in the top 100 m or so of the water column, often near the surface. One of their chief prey is sardines.
| Striped marlin | |
|---|---|
 | |
| Hooked striped marlin | |
Scientific classification  | |
| Kingdom: | Animalia |
| Phylum: | Chordata |
| Class: | Actinopterygii |
| Order: | Istiophoriformes |
| Family: | Istiophoridae |
| Genus: | Kajikia |
| Species: | K. audax |
| Binomial name | |
| Kajikia audax (Philippi {Krumweide}, 1887) | |
| Synonyms | |
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Description
The striped marlin consists of 42-48 rays on its tall first dorsal fin that is almost the same or longer than its body depth while the second dorsal fin is much smaller. They have torpedo-like and compressed bodies. They have around 12-20 clear, visible bluish stripes on the sides of their bodies even after death. The color of their bodies is dark blue or black above and silvery-white on the bottom. Striped Marlin has an average length of 2.9 m (9.5 ft) and a maximum length of 4.2 m (13.8 ft) and can weight up to 220 kg (490 lb).[2]
Life Cycle
The striped marlin reaches sexual maturity at a age of 1-2 years or 1.4 m (4.6 ft) for males and 1.5-2.5 years or 1.8 m (5.9 ft) for females. They can live up to at least 10 years.[3][4]
Diet
The striped marlin is a top predator that mainly feeds on a wide range of fish, such as Sardine, Mackerel, small Tuna, Mahi-Mahi and Cephalopod. One such study off the coast of Mexico has found that it mostly feeds on schooling fish such as Chub mackerel, Etrumeus sadina and Sardinops caeruleus and Squid, mostly the Jumbo Squid, [5].
Sustainable consumption
In 2010, Greenpeace International added the striped marlin to its red seafood list. [6]
Fisheries
References
- Collette, B.B., Di Natale, A., Fox, W., Graves, J., Juan Jorda, M., Schratwieser, J. & Pohlot, B. (2022). "Kajikia audax". The IUCN Red List of Threatened Species. 2022: e.T170309A170084118.
{{cite journal}}: CS1 maint: uses authors parameter (link) - Froese, R., and D. Pauly. Editors. 2022.FishBase. World Wide Web electronic publication. www.fishbase.org, ( 02/2022 )
- Striped Marlin - NSW Department of Primary Industries. (n.d.). Retrieved June 26, 2022, from https://www.dpi.nsw.gov.au/__data/assets/pdf_file/0007/375955/Striped-Marlin.pdf
- Kopf, R. & Davie, Peter & Holdsworth, John. (2005). Size trends and population characteristics of striped marlin, Tetrapturus audax caught in the New Zealand recreational fishery. New Zealand Journal of Marine and Freshwater Research - N Z J MAR FRESHWATER RES. 39. 10.1080/00288330.2005.9517381.
- Rodríguez-Romero, Jesús & Abitia, Andres & Galván-Magaña, Felipe. (1997). Food habits and energy values of prey of striped marlin, Tetrapturus audax, off the coast of Mexico. Fishery Bulletin. 95.
- Greenpeace International Seafood Red list
Further reading
- Froese, Rainer; Pauly, Daniel (eds.) (2013). "Kajikia audax" in FishBase. August 2013 version.
- Tony Ayling & Geoffrey Cox, Collins Guide to the Sea Fishes of New Zealand, (William Collins Publishers Ltd, Auckland, New Zealand 1982) ISBN 0-00-216987-8
