Macro
Nudibranchs
Nudibranchia · Marine gastropod mollusks, order Nudibranchia; order-level overview of more than 3,000 described species
Nudibranchs are the reason macro divers stop covering distance. More than three thousand described species of these shell-less snails crawl the world's seafloors wearing colors that work as warnings, advertisements, and camouflage all at once, and more are named every year, with muck hotspots regularly producing animals new to science. The order splits broadly in two: dorids, carrying a rosette of gills on the back, many recycling sponge toxins into chemical defense; and aeolids, fringed in tentacle-like cerata that store working stinging cells stolen from the hydroids they eat. Rhinophores, the paired head antennae, smell the water for prey and mates. Most species live weeks to a year, so casts turn over fast and no two months on the same site produce the same list. Slow to a crawl and the sand starts producing.
어디서 언제 볼 수 있나
"상주종"은 해당 목적지에서 대부분의 다이빙 시 만날 수 있다는 뜻이고, "계절종"은 표기된 달에 안정적으로 출현한다는 뜻입니다. 그 외의 생물은 계획이 아닌 보너스로 여기세요.
| 목적지 | 신뢰도 | 월 | 참고 사항 |
|---|---|---|---|
| AnilaoPhilippines | Resident: seen on most dives | 연중 가능 | |
| Lembeh StraitIndonesia | Resident: seen on most dives | 연중 가능 | |
| Dumaguete, Dauin & Apo IslandPhilippines | Resident: seen on most dives | 연중 가능 | |
| Poor Knights IslandsNew Zealand | Resident: seen on most dives | 연중 가능 | |
| British ColumbiaCanada | Resident: seen on most dives | 연중 가능 | |
| Milne BayPapua New Guinea | Resident: seen on most dives | 연중 가능 |
한눈에 보는 최적의 달
이해하기
서식지: Every bottom type divers visit (reef, rubble, sand, kelp, jetty piles, mud), wherever each species' prey grows; the order as a whole ranges from tide pools to the deep sea.
범위: All oceans, polar to tropical; the Coral Triangle holds the richest shallow-water diversity known.
행동 특성: Slow, chemically defended browsers; hermaphrodites that mate side by side and lay coiled egg ribbons. Aeolid species store working stinging cells from the hydroids they eat.
먹이: Specialists almost to a species: sponges, hydroids, bryozoans, tunicates, anemones, eggs, or other sea slugs.
크기: 보통 0.03 m; 최대 기록 수심 0.6 m (order-wide range; most diver-found species are 1–6 cm, while the Spanish dancer reaches about 60 cm).
이 생물 주변에서의 행동 요령
Shoot without touching or relocating: posed slugs on borrowed backgrounds are the macro world's staged wildlife problem. Keep strobe sessions short per animal.
보존
Almost none have been evaluated for the IUCN Red List; their fortunes track the sponges, hydroids, and other prey they depend on.
관련 다이브 사이트 목록
강조 표시된 사이트는 편집팀이 해당 종에 대해 직접 등록한 곳이며, 숫자는 1990년 이후 사이트 기준 약 5km 이내에서 기록된 GBIF 출현 건수입니다.
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