It’s not surprising that Edo Potter’s favorite piece of conservation land is the next one. For decades she has been instrumental in acquiring plot after plot on her beloved Chappaquiddick for public use and enjoyment by future generations. She’s confident about the future of conservation on Martha’s Vineyard because of the health of the Island’s numerous environmental groups and their remarkable track record, both of which owe in large part to her tireless efforts.

A bill which has been quietly making its way through the state house could dramatically affect the future ownership of some of the Vineyard’s pristine barrier beaches, moving them from private hands to public.

The bill, which consists of just a single paragraph, relates to the barrier beaches that separate the Island’s Great Ponds from the ocean. Many of these beaches are privately owned and also are retreating into the ponds as they are eroded on their seaward side.

Sheriff’s Meadow Sanctuary, the Edgartown property that gives its name to the Island’s largest private landowner and conservation group, is slated for restoration.

Adam Moore, executive director of the Sheriff’s Meadow Foundation, said at the foundation’s annual dinner this week that more than $300,000 of the $500,000 needed to refurbish and maintain the 20-acre property for public use has already been raised, and the foundation is actively seeking the balance from friends and neighbors.

The world’s oceans need protection, a globe-traveling National Geographic underwater photographer told a large audience at the Tabernacle last Saturday.

After 35 years of photographing the oceans, Brian Skerry, 49, said he is troubled by growing evidence of degradation of habitat and the waste and loss of sea life. “I think the oceans are dying a death of a thousand cuts,” he said.

A valiant effort to save the life of two malnourished baby otters came to an end over the weekend.

One otter, found in a yard in Oak Bluffs on Thursday afternoon and sent Friday morning to the Trailside Museum in Milton, died over the weekend. A second baby otter, recovered on Friday not far from where the first otter had been found, also died.

The two otters, about eight weeks old, lost their mother when she was hit and killed on Barnes Road in Oak Bluffs on the morning of June 7.

Bluefin tuna — the center of a highly lucrative commercial fishery and heated controversy about overfishing — will not be listed as an endangered species, the National Oceanic and Atmospheric Administration announced last week.

“NOAA is formally designating both the western Atlantic and eastern Atlantic and Mediterranean stocks of bluefin tuna as species of concern under the Endangered Species Act,” a press release that accompanied the decision said.

The place names are familiar and unchanging: Wasque, Cape Pogue and Long Point, Herring Creek Farm, Cedar Tree Neck and Fulling Mill Brook, Waskosim’s Rock and Pecoy Point, to name a few.

But the people who admire, use and could potentially contribute to the thousands of acres of land in conservation on the Vineyard have changed, and Island conservation leaders say this is what frames their biggest challenge today.