264 Chapter 7 Chaetognaths
it has been sampled deeper, in intermediate
depths, and in those greater than 900 m. During
the Siboga expedition, it was sampled at 2000 m
north of Australia (Fowler 1906). The species is
considered bipolar in its distribution (David
1955; Alvariflo 1969). Alvariflo reports its presence at less than 100 m in Portugese waters, and
in those off Guinea and in the Gulf of Biscay. She
suggests that its presence in more surface waters
may be due to upwelling of deeper waters. The
species is present in the Atlantic, Indian and Pacific Oceans. It has also been reported for the
Weddel Sea and Drake Passage (Dinofrio 1973),
where very large specimens (up to 31.7 mm)
have been sampled. It is also reported in the
Gerlache Straits, Antarctic Peninsula. Ducret
(1968) reports it for the Atlantic coast ofTropical
Africa at depths greater than 300 m, with maximum numbers occurring at even greater depths
of700-800 m. Fagetti (1968) sampled the species
off the coast of Central Chile, but her specimens
did not exceed 14.8 mm in length. von RitterZahoni ( 1909) collected 2 very small specimens
(9 and 12 mm) at the Pacific entrance to the
Straits of Magellan during the Gazelle expedition. Guglielmo et al. (1992) sampled the species
off South New Zealand. Lutschinger (1993) also
reports the species along the New Zealand coast.
In the present study, E. hamata was the second
most abundant species (21.3 o/o). It was sampled
mainly at Pacific stations and only 5 specimens
were collected in the Atlantic sector.
it has been sampled deeper, in intermediate
depths, and in those greater than 900 m. During
the Siboga expedition, it was sampled at 2000 m
north of Australia (Fowler 1906). The species is
considered bipolar in its distribution (David
1955; Alvariflo 1969). Alvariflo reports its presence at less than 100 m in Portugese waters, and
in those off Guinea and in the Gulf of Biscay. She
suggests that its presence in more surface waters
may be due to upwelling of deeper waters. The
species is present in the Atlantic, Indian and Pacific Oceans. It has also been reported for the
Weddel Sea and Drake Passage (Dinofrio 1973),
where very large specimens (up to 31.7 mm)
have been sampled. It is also reported in the
Gerlache Straits, Antarctic Peninsula. Ducret
(1968) reports it for the Atlantic coast ofTropical
Africa at depths greater than 300 m, with maximum numbers occurring at even greater depths
of700-800 m. Fagetti (1968) sampled the species
off the coast of Central Chile, but her specimens
did not exceed 14.8 mm in length. von RitterZahoni ( 1909) collected 2 very small specimens
(9 and 12 mm) at the Pacific entrance to the
Straits of Magellan during the Gazelle expedition. Guglielmo et al. (1992) sampled the species
off South New Zealand. Lutschinger (1993) also
reports the species along the New Zealand coast.
In the present study, E. hamata was the second
most abundant species (21.3 o/o). It was sampled
mainly at Pacific stations and only 5 specimens
were collected in the Atlantic sector.