Sharks
Silky Shark
Carcharhinus falciformis · Cartilaginous fish — family Carcharhinidae
Silkies are the open ocean's welcoming committee. Hang beneath a liveaboard at Daedalus or in Cuba's Jardines de la Reina and they appear from nowhere — slender, bronze-backed sharks with long tail lobes, carving smooth circles a fin's length away. Few species close distance so readily, and few wear their curiosity so plainly; a safety stop can turn into twenty minutes of orbiting escort. They are also among the most heavily fished sharks on Earth, hauled up in vast numbers on tuna longlines and purse seines, which makes the confident crowds at protected seamounts feel like dispatches from an older ocean.
Где и когда увидеть
«Постоянные» — значит, большинство погружений в этом месте позволяет встретить их; «сезонные» — значит, они стабильно присутствуют в указанные месяцы; всё остальное — приятный бонус, а не повод строить планы.
| Направление | Достоверность | Месяцы | Примечания |
|---|---|---|---|
| Cocos IslandCosta Rica | Resident — seen on most dives | Круглый год | |
| Socorro & the RevillagigedosMexico | Resident — seen on most dives | Круглый год | |
| Jardines de la ReinaCuba | Resident — seen on most dives | Круглый год | |
| MalpeloColombia | Resident — seen on most dives | Круглый год | |
| Brothers, Daedalus & St John'sEgypt | Seasonal — reliable in season | May–Oct |
Лучший месяц — коротко
Как их понять
Среда обитания: Warm open ocean over deep water; gathers around seamounts, offshore reefs, drifting objects, and anchored boats
Ареал: Circumtropical — one of the most abundant large sharks of the world's warm offshore waters, from the Caribbean and Eastern Pacific to the Red Sea and central Pacific
Поведение: Fast, sleek, and inquisitive, named for the fine, smooth texture of its skin. Silkies materialize around boats and safety stops in open water, circling divers closely and persistently, especially toward dusk. Around baitballs they switch to quick, slashing runs.
Рацион питания: Schooling fish such as tuna and mackerel, plus squid; often follows baitballs and tuna schools
Размер: как правило, около 2.2 m; задокументировано до 3.3 m (total length).
Как вести себя рядом с ним
Keep the group compact during drifting safety stops, avoid low-light surface swims where silkies are working bait, and never spearfish from a liveaboard mooring they patrol.
Охрана природы
Vulnerable and declining — silkies are the most common shark in the global fin trade and dominate tuna-fishery bycatch. CITES Appendix II listing now regulates international trade.
Известные места на карте
Смотреть
Из официальных источников
Best Places to Dive with Whale Sharks
Outrageously Tiny Fish
Sink or Swim? with Monét X Change | Monterey Bay Aquarium
Видео — это встроенные ссылки на каналы их авторов: мы ничего не размещаем у себя и указываем все источники.