Northern Shrimp, Other Invertebrates & Marine Plants

Name: eRegulations
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Finfish and shellfish are not the only species that can be harvested from New Hampshire waters. The following are other species that can be harvested. Licenses may be required. See table below for details.

Invertebrates/Marine Plants
Species	License Requirement	Season	Minimum Length	Daily Bag Limit	Gear Regulations & Special Rules
Clamworms	Recreational: None	No closed season	None	1 quart/day	Residents only For personal use only Only handheld tools with handles not to exceed 18 inches
Clamworms	Commercial: Commercial Saltwater License	No closed season	None	None	Only handheld tools with handles not to exceed 18 inches
Horseshoe Crab	Harvest Permit	No closed season	None	10/day (either taken or in possession)	Reporting required
Sea Urchins	Personal use: None	By Hand or Pot: Oct. 1 – March 15	2 inches (longest diameter)	None	Sublegal sea urchins shall be culled immediately after capture and returned immediately to the sea
Sea Urchins	Commercial: Commercial Saltwater License	By Hand or Pot: Oct. 1 – March 15 Sled: Dec. 15 – March 15	2 inches (longest diameter)	None	Sublegal sea urchins shall be culled immediately after capture and returned immediately to the sea Helpers working under the Commercial Saltwater License shall not take by diving No possession of other marine species including lobsters, finfish or shellfish if taken by sled Gear: Call Marine Fisheries Division for specific gear regulations — (603) 868-1095
Seaweeds	None	No closed season	None	3 bushels/day	Residents or summer residents only May be taken below the high water mark during daylight hours only Do not detach or injure the holdfasts of the seaweed when cutting Owner’s permission is required to take flats-weed or seaweed from saltmarsh or flats No seaweed may be piled below the high water mark to be hauled away Sale is prohibited outside the state
Northern Shrimp	Call Marine Fisheries Division for current rules — (603) 868-1095 or see Marine Fishing Rules Fis 607.01 at nh.gov

Jonah vs. Atlantic Rock Crabs

Jonah crab (Cancer borealis)

Front edge of carapace is jagged with undefined “teeth” (Jonah = jagged)
Local name “Jonah crab”
Less aggressive when handled
Larger than rock crabs (carapace width up to 7 inches)

Atlantic rock crab (Cancer irroratus)

Front edge of carapace has smooth defined “teeth”
Local names include “sand” crab or “peekytoe”
More aggressive when handled
Smaller than Jonah crabs (carapace width up to 5 inches)