Reproduction of the blacknose shark (Carcharhinus acronotus) in coastal waters off northeastern Brazil
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چکیده
E-mail address (for F. Hazin): [email protected] depths between 5 and 10 m. Bottom longlines consisted of a multifilament mainline (6 mm in diameter) with up to 100 secondary lines, each approx. 5 m in length and constructed from 3-mm diameter monofilament attached to a wire snood (1 m in length). Types of hooks varied among brands, but rela tive sizes (i.e. 9/0) remained similar.The main baits were sardine (Sardinella brasiliensis) and mackerel (Scomber spp.), although some other species, including sting ray (Aetobarus nari nari) and skipjack tuna (Katsuwonus pelamis) were occasionally used. Long lines were set on the continental shelf at depths between 10 and 60 m, but most sets were shallower than 40 m.
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Structure and Dynamics of the Shark Assemblage off Recife, Northeastern Brazil
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