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Lahaina Boat Harbor and Reef

    



Latitude: 20 52 00 N

Longitude: 156 40 00 W

Island: Maui

Location: On the NW coast of Maui, in Lahaina Town

Description: Lahaina Boat Harbor is protected on three sides by a 12 ft (3.5 m) high lava rock wall. This wall is not very permeable thereby allowing little water motion through the walls. Tides are the determinant force in the water dynamics of the harbor. The southern end of the harbor is virtually devoid of algae as a result of minimal water movement or exchange. Nearer the entrance to the harbor large stands of Polysiphonia sp occur attached to submerged ropes and, often, the hulls of vessels. Small populations of a few other algae were found on the intertidal rocks at the entrance. The reef area immediately to the south of the harbor caries a wide range of healthy and flourishing algae but few of these ever manage secure a foothold within the harbor itself.

Freshwater Inputs: Extensive freshwater seepage from various sources but mainly the large freshwater ponds south of the town as well as rainwater drainage.

Turbidity:

Nutrients:

Collection Dates: 01.Jun.2000; 19.Nov.2000; 07.Feb.2001; 24.May.2001

Samples: Samples were collected along the inside and the outside of the walls, and also along the berths and the shoreline of the harbor.

Invasive Species Collected:
Acanthophora spicifera (Vahl) Børgesen
Cladophora vagabunda (L.) Hoek
Colpomenia sinuosa (Mert. ex Roth) Derbès & Solier
Dictyosphaeria cavernosa (Forssk.) Børgesen
Enteromorpha flexuosa (Wulfen) J.Agardh
Hincksia mitchelliae (Harvey) Silva
Hypnea musciformis (Wulfen) J.V.Lamour.
Hypnea spinella (C.Agardh) Kütz.
Turbinaria ornata (Turner) J.Agardh
Ulva fasciata Delile


All Species Collected:
Acanthophora spicifera
Amphiroa valonioides
Antithamnion antillanum
Antithamnionella breviramosa
Caulerpa serrulata
Centroceras clavulatum
Ceramiaceae
Ceramium dumosertum
Ceramium flaccidum
Chaetomorpha antennina
Chnoospora minima
Chondria polyrhiza
Chondria simpliciuscula
Cladophora vagabunda
Colpomenia sinuosa
Dasya corymbifera
Dasya iridescens
Dasya kristeniae
Dasya murrayana
Dictyopteris repens
Dictyosphaeria cavernosa
Dictyota bartayresiana
Dictyota ceylanica
Dictyota sandvicensis
Enteromorpha
Enteromorpha compressa
Enteromorpha flexuosa
Falkenbergia hillebrandii
Galaxaura marginata
Gelidiopsis intricata
Grateloupia hawaiiana
Grateloupia ramosissima
Griffithsia heteromorpha
Halimeda discoidea
Herposiphonia crassa
Hincksia breviarticulata
Hincksia indica
Hincksia mitchelliae
Hypnea musciformis
Hypnea pannosa
Hypnea spinella
Hypneocolax stellaris
Jania adhaerens
Jania micrarthrodia
Jania pumila
Leveillea jungermannioides
Lyngbya majuscula
Melanamansia glomerata
Microdictyon japonicum
Microdictyon setchellianum
Neosiphonia hawaiiensis
Neosiphonia sphaerocarpa
Neosiphonia tongatensis
Padina
Padina gymnospora
Padina sanctae-crucis
Polysiphonia
Polysiphonia scopulorum
Polysiphonia upolensis
Portieria hornemannii
Pterocladiella caerulescens
Rhipidosiphon javensis
Rosenvingea intricata
Sargassum polyphyllum
Sphacelaria novae-hollandiae
Sphacelaria rigidula
Sphacelaria tribuloides
Spyridia filamentosa
Stypopodium hawaiiensis
Tricleocarpa fragilis
Turbinaria ornata
Ululania stellata
Ulva fasciata