A.
Chapter 237, Wetlands Protection, of the General Ordinances of the Code of the Town of Barnstable, explicitly protects the values of the natural resources of its foreshores, intertidal areas and the Commonwealth of Massachusetts' tidelands and waters as well as inland wetlands, ponds and lakes.
C.
The construction, use, and maintenance of shore outhauls are likely to have a significant or cumulative adverse effect on the wetland resource values of storm damage prevention, fin and shellfisheries, wildlife habitat, erosion and sediment control, and recreation. Construction and use of shore outhauls can have adverse effects on resource areas and on the use of these areas for recreational purposes. Further, shore outhauls destroyed by storms pose a threat to nearby properties by increasing waterborne debris.
D.
Turbulence, such as caused by jet-drive boats, and propeller dredging generated by boat use with shore outhauls significantly increase turbidity levels. High turbidity levels attenuate light. Light is necessary for the photosynthetic process responsible for the primary productivity and oxygen regeneration of the water. The suspended sediments settle on shellfish beds, smothering existing shellfish and altering the quality of the benthic environment essential for spat (mollusk larvae) settlement. Resuspension of bottom sediments causes redistribution of sediments, alteration in sediment grain size distribution and causes changes in bottom topography relief, elevation and grade, induding creation of depressions in the bottom. Settlement of sediments into depressions can create deep pockets of highly fluid-like sediment which may not be able to physically support shellfish or which can become anoxic and therefore not support shellfish. Disturbance of sediments during the period of shellfish larval settlement hinders or prevents the effective settlement of shellfish larvae. Boat traffic generated from shore outhauls will add to this disruption and may cause erosion of banks and marshes.
E.
Construction of shore outhauls and subsequent boat activity causes resuspension of nutrient-laden sediment particles which may cause a release of sediment-bound nutrients to the water column resulting in a "bloom" of vegetation. Release of nutrients to the water column leads to eutrophication and anoxic bottom conditions. Anoxic sediments and anoxic bottom conditions create adverse impacts on benthic resources, including shellfish and fisheries.
F.
Propeller turbulence near or in areas of submerged aquatic vegetation, such as eel grass, or salt marsh damages vegetation, thereby increasing the rate at which organic detritus is produced. If this organic detritus does not completely decompose aerobically, then anoxic bottom conditions will ensue, which adversely impact shellfish and fisheries.
G.
Cumulative impacts of the construction and use of shore outhauls threaten to decrease the overall productivity of the marsh ecosystem, to reduce its ability to absorb storm wave energy, and to reduce its contribution to groundwater and surface water quality. Cumulative impacts also affect shellfish habitat and shell fishing.
H.
Shore outhauls, when placed in land containing shellfish or shellfish habitat, have an adverse impact on the resource area value of recreation. The placement of shore outhauls can interfere with the harvesting of quahogs, soft shell clams, oysters, and scallops. Shore outhauls can have an unacceptable significant or cumulative effect on habitat and recreation as defined in § 237-13 of Chapter 237, Wetlands Protection, of the General Ordinances of the Code of the Town of Barnstable.
I.
Shore outhauls, depending on their length (distance from shore of their seaward piling), can have an adverse impact on recreation by interfering with recreational boating activities. Shore outhauls can interfere with intertidal lateral access for recreational fishing and fowling. Any proposal that affects navigation is likely to have a significant or cumulative adverse effect on recreation. The crowding or clustering of several outhauls on one parcel may exacerbate the adverse impacts to recreation.
J.
Shore outhauls conforming to the following regulations can be presumed to minimize the aforementioned possible negative impacts.
K.
All shore outhauls in Barnstable shall be governed by these regulations, whether accessory to residential use or serving commercial, yacht club, association, community, Town or other purpose.